Construction Review Africa

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SETTING NEW TRENDS IN FLOORING

One of the many successful contracts completed by H&M Flooring. We take great pride in adding the Lesotho National Referral Hospital to our portfolio. Special thanks to our partners: Grinaker LTA, VDO Architects and Polyflor South Africa in establishing a health landmark for Lesotho.




MAGAZINE CONTENT

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February 2012

Volume 23 No. 01

Personality Mike Nightingale

REGULARS The Site Board 6 News 7 New Products 10 Association News 11 Events 11 Corporate News 12

March 2012 Cover Story

PICTORIAL Holcim Awards 2011 Africa Middle East East African Power Forum 2011

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Cover Story China World Trade Tower 14 International Project National Stadium, Poland 16

Evelyn Grace Academy Evelyn Grace Academy is located in London, UK, by Zaha Hadid Architects has won the prestigious ÂŁ20,000 RIBA Stirling Prize 2011. Construction began in 2006 and it was completed in 2010.

Construction Review is published eleven times a year and is circulated to members of relevant associations, governmental bodies and other personnel in the building and construction industry as well as suppliers of equipment, materials and services in Africa, the Middle and Far East. The editor welcomes articles and photographs for consideration. Material may not be reproduced without prior permission from the publisher.

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The publisher does not accept responsibility for the accuracy or authenticity of advertisements or contributions contained in the journal. Views expressed by contributors are not necessarily those of the publisher. Š All rights reserved.

Vol. 23 / No. 1 ISSN 1025-2886 Home page:

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February 2012


WEB CONTENT

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PERSONALITY Mike Nightingale 17 GUEST Arch. Musau Kimeu 18 SUPPLEMENTS Foundation Waterproofing and Drainage

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United States New Embassy Compound, Addis Ababa, Ethiopia The United States New Embassy Compound (NEC) in Addis Ababa, Ethiopia is one of 17 U.S. embassy and consular projects designed by the Washington, DC office of PageSoutherlandPage. The new compound, which is the largest U.S. chancery in sub-Saharan Africa, consolidates in one facility the U.S. embassy to Ethiopia and the U.S. Mission to the African Union. Previously, U.S. government agencies operated in separate buildings and in four different locations around the city of Addis Ababa.

PROJECTS National Housing Corporation 24 Symbion: Using Architecture to Improve Life 28 Deloitte Botswana Settles In 36 10 years of Best Projects 38 Rehabiliation of Gamtoos Conveyance System 40 Queens Park Substation 42 Rwenzori Towers Built For Generations 44 Zimbabwe Platinum Highway 46

46 The Elinor Bunin Munroe Film Center David Rockwell, the new York based architect has just completed work on the new Elinor Bunin Munroe Film Centre, a public multi-screen theatre and cultural complex in the heart of the Lincoln Center in New York, and I thought it might be of interest.

February 2012

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MANAGING EDITOR Robert Barnes EDITOR Lucy Njogu

The Site Board

COUNTRY EDITORS Kenya - Francis Makari South Africa - Jasin Maddox Uganda - Irene Kabuzire

Governments need to be at the fore of initiatives to stimulate growth The prevailing global economic environment has kept economies on the brink of another recession with recurring bad news resulting in austerity measures and stringent conditions being given for credit facilities by institutional lenders. A sneeze by China, USA or Europe now threatens to give the whole world a cold. We seem to not be able to get far enough from the abyss.

WRITERS Lisa Kamau, Peace Muchiri, Irene Kabuzire, Ann Kariuki, Lindsay Wagner, Elaine Young, Jacqueline van Staden CHIEF DESIGNER Simon Muhia WEB / GRAPHIC DESIGN Augustine O. Ombwa

Governments now more than ever before need to play a more active role in economic expansion initiatives. This according to Danny Leipziger a former World Bank VP and current international business professor at George Washington University. He said that the Great Recession of 2008 and 2009 had served to reinforce the indispensible role that governments played in coordinating economic growth and development, as well as in guaranteeing stability.

ADVERTISING EXECUTIVES Kenya Arthur Makau, Titus Oyuga, Frances Lagoussis (Mombasa), Trizah Njoroge South Africa: Tabitha Muthoni, Winnie Sentabire, Angeline Ntobeng, Prince Moyo Uganda: Mutyaba Deus, Mugabi Moses

It would take a combination of factors in the current hostile environment to ensure that a country was placed on a competitive footing. But the deployment, ahead of demand, of well-planned and implemented infrastructure could be an important growth “trigger”. But infrastructure was but one element, with another key factor being the development of a country’s human capital, as well as putting in place structures and policies to support the development of a domestic manufacturing sector.

Botswana: Dickson Manyudza, Gerald Mazikana Tanzania: Tom Kiage Malawi: Anderson Fumulani Ghana: Anthony Hondah, George Laing Zimbabwe: Cyri’l Zenda Rwanda: Collison Lore Nigeria: Seni Bello

Africa therefore needs to take heed and craft suitable policies that sustain growth to enable her to stimulate growth in a situation that may become a lost decade.

China:Weng Jie

Published by Group Africa Publishing Ltd Botswana Office Cadline (Pty) Ltd. P/Bag 494 Gaborone, Botswana. Tel: +267 318 7101 Fax: +267 318 102 E-mail: botswana@ groupafricapublishing.com China Office Hangzhou Oversea Advertising Ltd 55-3-703 Guan Lane, Hangzhou, Zhejiang 310003, China Tel: +86-571- 87063843 Fax: +1-928-752-6886 (retrievable worldwide) Email: china@ groupafricapublishing.com Ghana Office Apex Media Africa P.O. Box 2558 Accra GP +233 (0)302 942 528 apex@groupafricapublishing.com Kenya Office Northwest Ventures Ltd P.O. Box 16414 Nairobi 00100 Kenya Tel: +254 20 2679809, 2679808, 2091305 Email: kenya@ groupafricapublishing.com Malawi Office Centre for Media Advocacy P.O. Box 1732, Blantyre, Malawi Tel: 2659954854 E-mail: malawi@ groupafricapublishing.com Rwanda Office Kolline & Hemed Inc., B.P. 3328, Kigali, Rwanda Tel: +250 03 748106 E-mail: rwanda@ groupafricapublishing.com Website: www.kollinehemed.org

Zimbabwe Office CMC Media Publications (Pvt) Ltd, P.O. Box 4828, Harare, Zimbabwe. E-mail: zimbabwe@ groupafricapublishing.com Tanzania Office Daas Agencies Ltd P. O. Box 96061 Tel: (022) 2124328 Fax: (022) 2124328, Dar es Salaam E-mail: tanzania@ groupafricapublishing.com Nigeria Office B23/24, Aishetu Emoewa Plaza 196, Iju Water Works Road, Ifako Ijaye Lga,Agege, Lagos. Tel: 234-1-7347860 Email: nigeria@ groupafricapublishing.com South Africa Office College Publishers Ltd 1st Floor Oak Street, Oakfields, Randburg, Johannesburg Tel: +27 11 781 4253 Fax: +27 11 781 4287 Email: crinfo@ groupafricapublishing.com Uganda Office Trine Media Ltd 2nd Floor Greenland Towers, Kampala Road, Uganda P.O. Box 37690, Kampala Tel: 256 414 340394/ 312 287770 Fax: 256 414 340393 Email: uganda@ groupafricapublishing.com

Robert Barnes

March 2012

April 2012

PVC Materials PVC tiles for a strong floor

Sanitary Ware Stainless steel sinks

Kitchens Cabinets for a small kitchen

Green Building Green flooring options

May 2012

June 2012

Flooring Hardwood flooring

Plant and Equipment Dragline excavator

Windpower Wind energy

Roofing Ceramic roof tiles

The editor accepts letters and manuscripts for publication from readers all over the world. Include your name and address as a sign of good faith although you may request your name to be withheld from publication. We reserve the right to edit any material submitted . Send your letters to:

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NEWS

Egypt Drake & Scull Water for Egypt’s Project Drake & Scull Water and Power L.L.C (DSWP) have secured a AED 142 million (US$38.7million) Construction Contract of a Mining Grade Ammonium Nitrate Plant in the province of Ain Sukhna in Egypt. The project is the first for Drake and Scull Water and Power in Egypt’s Petrochemical industry since the launch of its specialized regional Oil and Gas division in 2010. The company entered into a strategic Joint Venture Agreement with Hassan Allam Construction one of Egypt’s largest general contracting companies to execute the project. The contract scope of work includes the complete construction and pre- commissioning of the following packages: civil works, mechanical equipment and storage tanks erection works, piping and structural steel fabrication and erection works. Once completed in April 2014, the plant will produce 1,060 MTPD of mining grade ammonium nitrate (MGAN), for use in the mining and construction industries.

Mining Grade Ammonium Nitrate Plant will produce 1,060 MTPD of mining grade ammonium nitrate, for use in the mining and construction industries.

Cameroon

Funding Kribi Power Project The African Development Bank (AfDB), and other development finance institutions including the International Finance Corporation (IFC), the Netherlands Development Finance Company (FMO), and the Development Bank of Central Africa (BDEAC), Proparco, and a syndication of local banks led by Standard Chartered Bank have signed a loan agreement to provide a US$260 million to the Kribi Power Development Company (KPDC). AfDB is lending EUR 39.5 million (US$51.7million) to the Kribi Power Project. The project comprises the construction and operation of a 216 megawatt gas-fired power plant located in the north of the coastal city of Kribi, in the southern province of Cameroon with a 100 km 225 kV transmission line to be connected to the country’s Southern Interconnected Grid.

Kribi Power Project comprises the construction and operation of a 216 megawatt gas-fired power plant.

Gambia

Construction of the Trans-Gambia Bridge The African Development Bank (AfDB) Group has approved funding of US$110 million for the construction of the Trans-Gambia Bridge and Cross Border Improvement Project. The financing package, which is being extended through the African Development Fund (ADF), the African Development Bank Group’s concessionary lending window, comprises an outright grant of US$100 million and ADF concessionary resources of US$5million. Phase I will consist the construction of the Trans-Gambia Bridge over Gambia River and One Stop Border Posts (OSBPs) while Phase II comprises of rehabilitation of 137 km of Senoba-Ziguinchor road in Senegal and pavement strengthening of 24 km of Farafenni –Senoba road in The Gambia. The project will be completed in five years, from 2012 to 2017.

Phase I will consist the construction of the Trans-Gambia Bridge over Gambia River and One Stop Border Posts.

February 2012

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NEWS

Gamesa to supply 200 MW of wind turbines

Egypt

Gamesa has won the supply contract for a total of 200 MW of wind turbines, to be installed at wind farm projects in the Gulf of El-Zayt, on Egypt's Red Sea coast. The contract was awarded by the New & Renewable Energy Authority (NREA) of Egypt, after a public tender. Gamesa will be delivering 100 of its G80-2.0 MW wind turbines, and will also install and commission them. Additionally, the Spanish wind turbine manufacturer will also provide service and maintenance for five years. The manufacture of the turbines to be delivered for these projects is to begin in 2012, while delivery is scheduled to happen during 2013. So far, Gamesa has installed a total of 406 MW of wind capacity in Egypt. Gamesa will be delivering 100 of its G80-2.0 MW wind turbines, and will also install and commission them.

Siemens Wins Turbine Order

Morocco

Siemens has won its first ever order for wind turbines in Africa. The company is to supply a total of 100 MW of wind capacity to Nareva Holding (44 wind turbines), which is developing the Haouma and Foum El Oued wind farms in Morocco. Aside from the delivery and installation of the wind turbines, Siemens is also to provide service and maintenance for five years. Both projects are to enter commercial operation in mid-2013. Haouma wind farm will be built in the northern part of the country, about 30 km east of Tangier, and only a few kilometers from the Mediterranean coast. It will have 50 MW of installed capacity, featuring 22 SWT-2.3-93 units.

Haouma wind farm will be built in the northern part of the country, about 30 km east of Tangier.

First Crescent

South Africa

The First Crescent is a double storey house that was designed by Stefan Antoni Olmesdahl Truen Architects (SAOTA). The result was a great house at Camps Bay, a residential area in Cape Town, South Africa. The shape of the site had to be put in to consideration given that it was 50m long and only 20m wide. The property, and subsequently the plan of the house, focused on Camps Bay beach, and the views of Lion’s Head in a Northerly direction. There are also great views back to The Twelve Apostles and the Cable Station. Materials were selected to create a calm and contemplative feeling. The pale colours reflect light in all spaces complementing the casual feel of the house.

The First Crescent is a double storey house that was designed by Stefan Antoni Olmesdahl Truen Architects.

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NEWS

France

AREVA for Upgrading Works EDF has awarded AREVA with a contract worth more than USD 780 million to upgrade the monitoring and control systems which guarantee the safety of its 1300MW power plants (Paluel, Flamanville, Saint-Alban, Cattenom, Belleville, Nogent sur Seine, Golfech and Penly). The work, to be carried out on 20 reactors, is an integral part of EDF’s industrial programme for the continuous improvement of its nuclear installations. The aim is to enhance the performance of the monitoring and control systems, which guarantee nuclear safety. The first tranche of the works will commence in 2015, to coincide with the third 10-yearly reactor inspections. The 1300 MW reactor monitoring and control system was the first in the world to see digital technology used in nuclear power plants.

The work, to be carried out on 20 reactors, is an integral part of EDF’s industrial programme for the continuous improvement of its nuclear installations.

China

GE Renews GE10-1 Gas Turbine Supply with CAGT GE Oil & Gas has renewed an agreement with China Aviation Gas Turbine Ltd. (CAGT) to continue supplying GE10-1 gas turbine engines and control panels for use in power generation in oil and gas plants and coke oven gas applications in China and abroad through customers whose headquarters are in mainland China. The original agreement between GE and CAGT was signed in 2002 and renewed in 2007. The new agreement covers the next five years, with a possible option to extend it for another three years, and also includes a services section. Since 2002, GE has sold a significant number of these units to CAGT that now account for nearly one third of the global installed fleet of GE10-1 gas turbines.

CAGT is to continue supplying GE10-1 gas turbine engines and control panels for use in power generation.

Sweden

Building most powerful underground cable link ABB has won an order worth around US$160 million from Svenska Kraftnät, the national grid operator, to provide a new high-voltage underground cable system for the South-West Link power transmission project in southern Sweden. When completed in 2014, this will be the longest and most powerful underground cable link in the world. The main objective of the new transmission system is to enhance capacity and strengthen the reliability of the national power grid. It will help boost transmission capacity in the south of the country and between Sweden and Norway. The link will also facilitate the future integration of large-scale wind power into the Swedish power network.

When completed in 2014, this will be the longest and most powerful underground cable link in the world.

February 2012

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PRODUCTS

HYDROFLO Range Davis &Shirtliff Kenya recently launched its HYDROFLO range of booster sets that feature advanced Variable Frequency Drive (VFD) technology and also Grundfos pumps. The principal benefit of VFD controlled pumping solutions is efficiency because they provide a constant pressure no matter what volume of water is required by varying the pump motor speed in response to the demand from the system. Much interest was shown and these sets are destined to become popular in multi outlet supply applications.Website: www.dayliff.com

PACE 1000 Pressure Indicator The PACE 1000 pressure indicator is the latest in the new generation of PACE high precision, modular pressure instrumentation for rack-mounting, test bench or bench top applications from the Sensing business of GE Measurement & Control Solutions (NYSE: GE). It is available in three grades of precision performance and a choice of pressure ranges, pneumatic and hydraulic, and features internal data logging as standard. It will find application throughout the industrial, process and metrology sectors and an aeronautical option provides all pressure indications in aeronautical units. As Mark Singleton, product manager for the new PACE 1000, explains, “This is an exciting addition to the PACE platform and establishes GE’s Sensing business as a leading player in the precision pressure indicator market. As well as being a versatile and flexible stand-alone solution, the PACE 1000 also integrates seamlessly with our recently launched 4Sight , Web-based calibration and maintenance software to provide a fully automated and powerful workstation.” Website: www.ge-mcs.com

Lighting Warehouse The Lighting Warehouse has launched a wide variety of desk and floor lamps in a plethora of designs, shapes, colors, dimensions and lighting abilities. The new range lamps will allow you to work more efficiently and in greater comfort – whether it is for reading, studying, paying bills, doing crafts or needlepoint, or to light up an otherwise dull space, this lamp is efficient. The Lighting Warehouse’s in-store sales consultants can advise on the best globe to use for a particular application. There are different Kelvin color globes available – for example, you can purchase globes that give off a cool white, warm white and daylight white illumination. You can also choose globes with various wattages, depending on your required light output and The Lighting Warehouse also offers the latest in energy saving globes in terms of LEDs and CFLs. Website: www.lightingwarehouse.co.za

GS-4069 DC Terex AWP has introduced electric versions of the Genie rough terrain '69 series' of scissors launched earlier this year. The three electric lifts are the GS-2669 DC, GS-3369 DC and GS-4069 DC, and will offer similar capacities and jobsite performance to the diesel powered versions, the company said. Terex says the GS-4069 DC scissor is the world's first 40-foot (12m) full drive-height electric scissor lift in its class designed to offer increased operator productivity and increased uptime while on the jobsite. The GS-2669 DC and the GS-3369 DC also drive at full height. "Genie was the first to offer AC electric drive technology on our groundbreaking Z40/23N articulating boom," said Jeff Weido, Terex AWP senior product manager. "Now, we have brought this innovation to our exceptional line of electric rough terrain scissor lifts. These models offer increased energy efficiency, productivity, reliability, and durability because the AC drive motors are now sealed, all of which are aimed to reduce maintenance and service costs." 12

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ASSOCIATION NEWS & EVENTS

Sustainable Energy Society of Southern Africa SESSA member, Selected Energy, has installed solar energy systems at two South African schools: in Bloemfontein, some 26 solar water heaters expected to pay for themselves within three years were installed at the Martie du Plessis School for Grade R to Grade 12 special needs students while a 300-litre Solahart solar water heater was donated to the Save the Children (SCF) centre in Tjakastad, Mpumalanga. Martie du Plessis School was established in 1985 and wanted a solar water solution that would provide sufficient hot water to its three boarding houses and nine flats, the former accommodating about 150 students and the latter school personnel. During the first phase, 21 systems delivering a total of 6 069 litres of hot water daily were installed at the boarding houses. An additional five catering for the needs of the school’s personnel followed as part of the second phase. According to Selected Energy dealer, Piet van den Berg, the total installation saves more than 50% of the original percentage kW consumption a year; at current electricity prices this is sufficient to ‘pay for the system’ in three years, he said.

“By investing in Solahart solar water heaters, the school is now able to provide its students with hot water, during rain or shine and times of unreliable power supply,” said Van den Berg.

West Africa Building and Construction Seminar Date: Venue: Contact: Email: Website:

May 23-25, 2012 Abuja, Nigeria racey Nolan info@ace-events.com http://www.ace-events.com

Theme: Infrastructural Challenges Facing Nigeria in the 21st Century Participation in Water Africa and West Africa Building & Construction Exhibition in 2012 will ensure that exhibitors reach the key decision-makers from the Ministry of Water Resources, Works, Housing & Urban Development, as well as engineers, architects, contractors and consultants, NGOs, investors and developers involved in either or both sectors. Exhibitors are invited to take part in the accompanying seminar programmes, which will be run in co-ordination with the Ministry of Water Resources, Works, Housing & Urban Development. Call for papers will be sent to you shortly. Acceptance of presentations will be on a first come first served basis. The programmes will provide an ideal opportunity for exhibitors to get to know the problems and needs of West Africa, and provide information on their products and services to a large number of visitors and seminar delegates, some of whom will be invited by the Ministries and local NGOs, and some by the exhibitors themselves. There will be great business

opportunities at this event, which is internationally regarded as Africa’s best annual infrastructure trade show and is keenly supported by our exhibitors.

3rd Eastern Africa Energy Week 2012 Date: Venue: Contact: E-mail: Website:

March 26-28, 2012 InterContinental Hotel - Nairobi, Kenya Jerry van Gessel jerry@glopac-partners.com http://www.petro21.com

The 3rd Eastern African Oil, Gas & Energy Conference 2012, scheduled for Nairobi will showcase the regional oil/gas and energy game in Kenya, Tanzania, Uganda, Rwanda, Burundi, DRC, Sudan, Ethiopia, Eritrea, Somalia, Seychelles, Madagascar and Mozambique, and focuses on the corporate players (private and state entities) that are shaping the fastmoving dynamics one of the Continent's rapidly growing energy markets - upstream, midstream, downstream, and in gas, CBM/CTL. Themes covered include: Government policies, state interventions in the oil/energy market, state oil/energy companies, private energy investments and interests, corporate portfolio and strategies, new entrants, competition and regulation, inter-fuel issues, product pricing, taxation

February 2012

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Davis & Shirtliff

Technical Director Philip Holi and Technician George Tungaraza inspect a new Dayliff DRO Plant

Davis & Shirtliff pioneered Reverse Osmosis water treatment in Kenya supplying the first units in 1995 though demand for plants has recently grown hugely and the company has sold many imported units into the market. However, with benefits of cost, availability and serviceability it was decided to assemble plants locally and under the direction of Technical Director Philip Holi and Manufacturing Manager Charles Kebaso components have been sourced and a range of plants designed. These DRO plants, as they are designated, incorporate high efficiency Dow membranes with fully automated operation and are available in standard sizes from 0.5-3m3/hr output with larger sizes available to special order. The market has enthusiastically accepted these new products and already 15 have been successfully supplied with orders for many more in hand. Reverse Osmosis is now a well accepted technology for providing almost totally pure water and it is expected that demand for these products will grow rapidly as their many benefits become appreciated.

Perkins Eastman Dubai Office

Ludowici Meshcape

Fabrication of Engineered Products

Steven Miller

A highly-successful performance during the course of 2011 has placed Ludowici Meshcape firmly on the path towards being recognised as a powerhouse within the African processing equipment market. Johannesburg-based Ludowici Meshcape is an internationallyrecognised supplier of high-quality equipment and services to the mining and general industries. The company was officially established in August 2011, following the acquisition of leading South African screening media manufacturer, Meshcape, by global mineral processing equipment manufacturer Ludowici Limited. Ludowici Meshcape managing director David Sibley points out that 2011 has been a record year for the company in terms of revenue and budget, despite a challenging economic climate. “Ludowici Meshcape has achieved a major growth in revenue for 2011 in a volatile market, and I believe that this success can be attributed to the fact that the newly-established venture has significantly boosted its market expertise and production capabilities as a result of the acquisition between two market-leading organisations.”

Top international design and architecture firm Perkins Eastman is pleased to announce that Steven Miller FAIA, RIBA has joined the Dubai, UAE office as Regional Manager for the firm’s growing practice in the Middle East and Northern Africa (MENA). As part of an international management team, Miller will oversee the firm’s projects and growth in the MENA region. Miller joins with more than 48 years of experience in architecture, design management, and construction administration for planning and infrastructure. He is a specialist in urban design, hotel planning, and residential design, as well as an experienced real estate investment planner—leveraging a deep understanding of the issues that drive development and the elements that make it successful. His experience spans the globe and is concentrated in international markets including the MENA region, South Asia, and Central and Eastern Europe.

What’s more, Sibley adds that the successful integration between the team members from both companies has also played a major role in the success of Ludowici Meshcape.

Prior to joining Perkins Eastman, Miller served as the Regional Director and the Managing Director for both Kohn Pederson Fox and FXFowle, as well as Planning and Design Consultants, a firm he founded.

Zimbabwe

South Africa

Association Partners Kenya

- Architectural Association of Kenya - Institute of Quantity Surveyors of Kenya - Institute of Engineers of Kenya - Association of Consulting Engineers of - Kenya - Association of Professional Societies of East Africa APSEA) - Kenya Property developers Association - Institution of Surveyors of Kenya

Namibia

Institute of Namibian Quantity Surveyors Association of Consulting Engineers of Namibia

Uganda

Institute of Surveyors of Uganda

Botswana

Institute of Botswana Quantity Surveyors

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- Zimbabwe Institute of Quantity Surveyors - Zimbabwe Institute of Engineers - The Construction Industry Federation of Zimbabwe (Cifoz)

Ghana

- Ghana Institute of Engineers - Architects Registration Council - Ghana Institute of Surveyors - Ghana Green Builders Association - Ghana Institute of Planners

Tanzania - Tanzania Institute of Quantity Surveyors - Construction Regulation Board (CRB) - Tanzania’s Registration Board of Architects and Quantity Surveyors (AQSRB)

- ASAQS - SAICE - South African Council for the Quantity Surveying Profession - Khuthaza ( Women for Housing) - Concrete Manufacturers Association - Green Building council of SA - South African Property Owners Association - Master Builders South Africa

Nigeria

- Association of Consulting Engineers Nigeria - Association of Professional Women Engineers Of Nigeria - Council of Registered Builders of Nigeria - The Nigerian Institute of Architects - American Association of Petroleum Geologists Africa Region February 2012


Holcim Awards 2011 Africa Middle East The winners of the 3rd International Holcim Awards competition for sustainable construction projects and visions from Africa Middle East was announced in September 2011 at a ceremony in Casablanca, Morocco.

Winners of the Holcim Awards Gold 2011 Africa Middle East for "Secondary school with passive ventilation system, Gando, Burkina Faso" (l-r): Diébédo Francis Kéré and Dominique Mayer, Kéré Architecture, Germany

Holcim Awards 2011 Gold winner - Diébédo Francis Kéré, Kéré Architecture, Germany.

Holcim Awards Silver 2011 Africa Middle East presentation (l-r): Luca Atanasio, Consul General of Italy in Morocco; Piero Corpina, Deputy Country Manager, Holcim Italy; winner Giovanna Claudia Rosa Romano, ARCò - Architettura e Cooperazione; and Javier de Benito, Area Manager Holcim for Mediterranean & North Africa.

Representatives of the Holcim Awards Bronze 2011 Africa Middle East winner ‘Training center for sustainable construction, Marrakesh, Morocco’ (lr): Salima Naji, Morocco; Martin Rauch, Lehm Ton Erde Baukunst, Austria; and Elmar Nägele, Nägele Waibel Architects, Austria.

Holcim Awards 2011 Silver winner - Giovanna Claudia Rosa Romano, ARCò - Architettura e Cooperazione, Italy.

Joe Addo, Principal of Constructs LLC, Ghana/ USA and member of the Holcim Awards jury for region Africa Middle East 2011 – presentation of the “Next Generation” prizes.

photo credit: Photos© Holcim Foundation

East African Power Forum 2011 The East African Power Forum took place at the Kampala Serena Hotel in September 6-7, 2011.

Delegates on a tour around the Namanve power plant

Demonstrating live line technology in applications in East Africa

Generation site visit participants at the source of the River Nile

Lunch after a trip to Kiira, the Eskom Uganda Namanve thermal power plant Presentation by Nobert Matarutse, Technical Power Plant Director, Eskom Uganda (Generation site February 2012 15 visit)


Skidmore, Owings & Merrill LLP (SOM), along with China World Trade Center Co. Ltd. celebrated the grand opening of the China World Trade Tower in August 2010. This is an 81-story, mixed use building set in Beijing’s Central Business District. The tower, which was designed by SOM and contains office, meeting, restaurants, and the China World Summit Wing hotel, now stands as Beijing’s tallest structure and marks the completion of the third and most recent phase of the China World Trade Center development.

China World Trade Tower

Business District The opening coincides with the 20th Anniversary of the China World Trade Center, which originally opened August 30, 1990. SOM was proud to take Beijing’s skyline to new heights with the completion of the China World Trade Tower, according to Brian Lee, design architect and partner, SOM, who attended the grand opening ceremony. The business of China connects to the rest of the world, so we sought a design that further connected Beijing to the China World Trade Center. Not only does the Tower emphatically mark the Central Business District but the development also provides citizens of Beijing with quality buildings and open space for business, shopping, hospitality, culture, education and enjoyment in a high density urbane environment. Development features In addition to the tower, the China World Trade Tower development includes a four-story abovegrade expansion to the underground China World Mall, a grand ballroom and retail podium with rooftop Pine garden, and landscaped water garden. The projects open spaces and courts energize the streetscape and provide a pedestrian, civic setting for the China World Trade Center. The tower’s tapering columnar form is a timeless design that reflects the high performance and rational culture of present-day Beijing. Its seamless integration with the surrounding areas seeks to return to a walk-able, urban fabric that comprised traditional Beijing. “The China World Trade Tower is an important new icon on the Beijing skyline, built specifically to suit its environment and unite the Center as a whole,” said Lee. “This project builds on SOM’s passion for extending what’s possible with super tall buildings, The tower connects the district center on the ground and in the sky, building a more cohesive and exciting district center, while blending seamlessly with the rest of the Beijing skyline.” One of the tallest Taking its place among some of the tallest structures in the world, the 330m-tall tower is an expression of an innovative approach to efficient engineering concepts and desire to create a 16

February 2012


Not only does the Tower emphatically mark the Central Business District but the development also provides citizens of Beijing with quality buildings and open space for business, shopping, hospitality, culture, education and enjoyment in a high density urbane environment.

distinctive and signature form. The moment frame structure with outrigger and belt trusses is the result of a high level of analysis and testing for Beijing's seismic zone. Redundant systems, areas of refuge, supplemental and widen egress, and an evacuation helipad address issues of tall building safety. The LEED Gold registered project embodies a comprehensive energy and conservation strategy for the building and greater development. The tower's crystalline walls are layered with fritted glass and metal fins that serve as vertical sunshades and maximize daylighting for the interior of the building. This unique design also includes LED lights on the exterior of the structure, which, when combined with the undulating glass walls, results in a glistening quality to the tower in the Beijing daylight and a striking luminosity when lighted at night. The China World Summit Wing, a Shangri-La hotel, at the top of the tower invites the city’s inhabitants and visitors to enjoy the public spaces at the crown, the highest point in Beijing. The 278 guestrooms are accessed by a skylobby on the 64th floor. The public hotel elements such as the Lobby Lounge, restaurants, bars Spa, pool and function rooms are placed at the top levels of the tower to enjoy expansive views of the city. SOM continues to work in partnership with the China World Trade Co. Ltd. to develop the CWTC plan and is active in Beijing's planning and architectural development. Other partners that were instrumental in the completion of the phase 3 tower include:

Project Team

Local Project Architect : Wong & Tung International Ltd. Structural Engineer : Ove Arup & Partners, HK Ltd. M&E Engineer : Parsons Brinckerhoff (Asia) Ltd. and WS Atkins International Ltd. Façade Consultant : SOM and Meinhardt Façade Technology Landscape Consultant : SWA San Francisco and TOPO Design Group Interior Designer : Hirsch Bedner Associates, Tihany Design, LRF Designers Ltd. Retail Interior Design: Benoy Lighting Consultant: Brandston Partnership Inc.

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National Stadium, Poland The National Stadium is located at Praga Południe district in Warsaw. This structure will replace the demolished 10th Anniversary Stadium. The National Stadium stands on the site of the former 10th Anniversary Stadium and the central part of the former Stadium is the base of the new facility. This positioning emphasizes the relationship between the new Stadium and its former counterpart, if we refer to the creative and active attitude to the present historical and spatial aspect of the new facility. Construction History Construction commenced in October 2008 with over 100 transport units and nearly 200 employees were at the construction site on that day and completion was on 30th November 2011. The National Stadium along with the associated infrastructure covers an area of 18 hectares and can host up to 58,000 people. High quality building materials and solutions are absolutely necessary in order to offer the public the possibility of safety and comfort in the stadium. The parking area of the stadium can accommodate up to 1,765 cars and it is covered by about 4,600m2 of DuPont Plantex Geoproma geotextile. This high strength, rot-proof nonwovens ensures both optimal ground stabilisation and continuous drainage and significantly contributes to the quality and the service life of the area over time. As a separation layer, DuPont Plantex Geoproma avoids the loss of bedding material into the subsoil and prevents soil particles from migrating into the drainage systems. Its high filtration characteristics ensures continuous drainage. Additionally DuPont Plantex Geoproma is chemically inert (made of 100% thermally-bonded polypropylene) and is innocuous for the environment. The base consists of four levels, the two lowest levels (B3, B4) are under the level of the designated football pitch and include car parks and exit corridors to the business club, VIP

lounges, offices, conference centre, fan club etc. Level B2 is two storeys under the promenade. It includes locker rooms for participating athletes, referees and sports officials, entrance ways to the VIP zone and the conference centre in the western part, entrance hall to the commercial area in the eastern part as well as car parks in the northern and southern parts. Level B1 is directly under the promenade and consists of the press conference and main kitchen in the western part as well as the museum, shop and fan club with a kitchen serving the conference centre and fan club in the eastern part. The centre of the former stadium is on Level B0. The main promenade of the new Stadium is located at this level. It leads spectators directly to the lower stands and – by the external stairs around the promenade – to the upper stands. There are a sufficient number of toilets, stands, first-aid points, spectator-oriented service points at this level and around the 2,600-seat business club. Level 0 – main promenade, business club, stands, toilets, first-aid points. Structure of the new Stadium The central structure of the Stadium rises, in keeping with the character of the previous Stadium, out of the center of the old Stadium. As a result of modern architectural innovations this new construction, with new materials applied and modern assembly techniques appears light and dynamic and is associated with sporting events and - broadly speaking – the dynamic development of our country. The architectural character of the façade of the Stadium is the result of the contour of steel columns on the outside of the Stadium which support the roof suspended over the Stadium and from the partially transparent external façade that is woven through these columns. Its wavy outline reflects the shape of stands and the form of the roof. It is woven around the supporting steel columns – much like that of a wicker basket.

As mentioned above, the main promenade divides the entire auditorium into the lower stand - the internal restriction of the base area - and the main upper stand. In the area under the upper stands there are 5 levels designated for various purposes. This area is confined by the upper stands from the inside of the Stadium and the vertical internal façade around the Stadium. In the space between the façade and internal façade, supported on piles which support the roof construction, are a series of stairs leading to the upper promenade (level +3). Roof construction The construction of the roof is a system of steel cables radiating from the external ring, which rests on steel columns, with the cables attached to the central spire over the football pitch. The roof construction principle is based on the construction of a bicycle wheel. The roof material is made from a glass fibre membrane covered with Teflon with an 8-metre wide glass section placed between it and the rest of the roof. The space over the central arena can be covered with this mobile roof which - together with the permanent roof – protects the interior from inclement (or unsuitable) weather. The mobile roof is positioned in the central spire above the arena and is above the system of information screens located in the lower part of the spire. Entrance pavilions There are three pavilions designed for ticket offices and security premises along with ticket check points - next to entrances for pedestrians from ul. Wybrzeże Szczecińskie, in the north and next to the entrance at Rondo Waszyngtona. These pavilions are connected by small roofed and entrance gates which form the entrance portals. Photo by J. Kosnik, courtesy of Narodowe Centrum Sportu


Personality

Mike Nightingale

(Founder and principal partner at Nightingale Africa Partnership (UK) among others) Mike Nightingale’s experience in the Coal, Power and Energy Systems Engineering industries spans 50 years in the United Kingdom, Eire (Ireland), Botswana and South Africa. He originally trained as a Power Electrical Engineer, but now with extensive multidisciplinary Systems Engineering Management and Business Systems Analysis experience, both as Owner and Supplier, in the international business arena on the continents of Europe, Africa, America, Asia and more recently Australasia. He is founder and principal partner at Nightingale Africa Partnership (UK), founder and executive director of Coal Wealth Botswana (Pty) Ltd, founder and chairman of Gondwana Industrial Developments Inc. (USA) and founder of Minerals Recovery Solutions, Botswana. He is, in addition, a central council member of the Fossil Fuel Foundation of Africa, a member of the Engineering Council of South Africa and an independent Power and Energy Systems Engineering Consultant operating in the UK, Eire, Botswana and South Africa. He has 42 years International Project Management experience mainly in capital intensive industries, such as North Sea Oil-Rigs, Coal, Iron & Steel, Petro-Chemical and Power Generation among others. and held executive posts inter alia with Iscor, Dorbyl, Eskom and international players, such as, Geo Wimpey ME&C UK, Kennedy & Donkin UK, Mitsubishi Japan, NKK Japan, General Electric USA, Siemens, Germany, Waste Management International USA, The IT Group USA, etc. Academic Background Mike Nightingale completed his O-levels in 1955 at St. Bonaventure’s Roman Catholic Grammar School for Boys and went on to complete an Ordinary National Certificate in Electrical Engineering in 1960. In 1963, he upgraded to a Higher National Certificate in Electrical Engineering, at West Ham College of Technology, London University, now renamed East London University. He registered as a Professional Engineering Technologist in 1993 and became a member of the Institute of Professional Engineering Technologists of South Africa in 1994. He proceeded to undertake numerous postgraduate courses, as well as extensive training in the

30 year period that followed, even during the 1998/9 period upon his return to UK during which time he had taken up an appointment as an Engineering Consultant, East Anglia Region for European Union. His portfolio includes certificates in Business Management, Programme Management, Industrial Marketing Management, Systems Engineering Management and Business Leadership.

Mike Nightingale

Career Growth Michael began his career in 1955 with an indentured apprenticeship in Electrical Power & Control Systems Engineering at Tate and Lyle Ltd in the UK, which included a period of Marine Engineering on the company’s 35 000tonne bulk carrier, MV Sugar Carrier. He joined Ilford Films Limited (UK) in 1961, as an Electrical Engineering Process Design and Development Engineer in photographic chemicals and materials. In 1964 he joined George Wimpey ME&C Ltd (UK) as Electrical Process Design Engineer, involved in Open-Cast Coal Mining and the Design and Construction of two Clean Coal Smokeless Fuel Plants at Markham Colliery, for the National Coal Board Research Centre, Stoke Orchard’s world renowned Professor Jacob Bronowski (b.1908 – d.1974). In 1967 Mike Nightingale was appointed Overseas Project Manager for the Iscor Steel Plant Expansion Project at Vanderbijlpark, South Africa for the same firm. In 1969, he was engaged directly by the South African Iron & Steel Industrial Corporation Limited, at their Iscor Works Vanderbijlpark, as extension programme Project Development Engineer responsible for Architect Engineering, on a two 90MW Arc Furnace Shop, a Slab/Plate Combination Mill, a Metallurgical Coal Blending Plant System, three Coke Oven & Gas By– Product Plant Systems, the 2050mm Hot Strip Mill, Hot Rolled Strip Processing, Galvanising and Tinning Lines with a Five Stand Tandem Cold Mill and the Modernisation of the South Works Cold Mills, Galvanising and Paint Lines capital plant extensions up to a nominal Integrated Steel Works capacity of 10 Million tonnes per annum.

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He is founder and principal partner at Nightingale Africa Partnership (UK), founder and executive director of Coal Wealth Botswana (Pty) Ltd, founder and chairman of Gondwana Industrial Developments Inc. (USA) and founder of Minerals Recovery Solutions, Botswana.

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Guest

Arch. Musau Kimeu

(Chairman, Environmental Design Consultants Chapter, AAK)

Arch. Musau Kimeu (Chairman, Environmental Design Consultants Chapter, AAK)

In the Architectural Association of Kenya Annual Convention, the Chapter of Environmental Design Consultants reflected on the importance of having a good quality environment. The quest for environmental values in architecture, for a harmonious balance between man and his environment is not new. It is so ingrained that for centuries, mankind adopted this approach out of necessity, particularly in vernacular architecture. However, since the industrial revolution, this has been increasingly abandoned in favour of universal architecture, which in many parts of the world, Kenya included has led to energy intensive buildings. The result has been global warming and climate change which in Kenya cause serious famine, diminishing rains, drying rivers including the once mighty Tana and Athi, and power rationing just to mention a few. Faced with these dangers, the public and policymakers alike must become conscious of the need to protect our environment. One response to these issues as raised in international summit meetings is to approach architecture in a way that respects the environment. But how many of our professionals are ready to take this route? Is the older generation of professionals in our country ready for this shift in the way we design or do they feel threatened? What about young professionals? For us in the building industry, we ought to take a leading role especially when we know that globally buildings account for over 50% of carbon dioxide (CO2) emissions and that CO2 is the main cause of global climate change. It is true that if CO2 emission by buildings was effectively addressed, this would be a major intervention against global warming and climate change.

Amongst architects practicing in the tropics, one of the favourite energy intensive buildings is the air-conditioned glass clad building. This building type is very fashionable in Kenya and is still on our architects’ drawing boards even though it is one of the worst building types being erected in the tropics today. 20

As building professionals, we must take a keen interest in green buildings and always remember that the architecture of the 21st Century is about environmental design. We must remember that green buildings will only result from building professionals working together to achieve this common objective. Since buildings have a long life, the effects of decisions made today will be felt for many years to come. Thus, low environmental impact should be a built in feature of building design by all professionals, clients and developers who claim to be producing quality buildings since

quality requires that today’s buildings not only meet the needs of the present occupants but also be an asset rather than a liability for our children and future generations. Glass clad buildings To achieve this, we must ‘touch this earth lightly’. From around 1980 to present, we have constructed too many buildings that are poorly designed from an energy consumption point of view and sadly society will have to pay the price for many years to come. Power rationing has become the norm in Kenya yet if we design buildings that are low in energy consumption we will be dealing with power rationing and climate change head on. Amongst architects practicing in the tropics, one of the favourite energy intensive buildings is the air-conditioned glass clad building. This building type is very fashionable in Kenya and is still on our architects’ drawing boards even though it is one of the worst building types being erected in the tropics today. A survey in most of our towns will confirm this, with Nairobi, Mombasa and Kisumu City being top on the list. Yet how much louder must it be said that the glass clad building is only good in the temperate (cold) climates of Europe, North America etc and is not suitable for the tropical (hot) climates? That notwithstanding, if you must build one in tropical climates, Kenya included, then all the glass must be fully sun-shaded throughout daytime, in addition to having the building naturally well ventilated. That is not rocket science! As a rule of thumb for good design in the tropics, all buildings should be fully sunshaded against direct solar radiation and naturally ventilated. In spite of that, many of us professionals are busy on our drawing boards and computers designing the next glass clad building in town. When did glass buildings that are suitable for Chicago and London also become suitable for Mombasa and Kisumu? Must we copy the West? Why must we build these glass furnaces in our towns? Shame on those of us who are designing these buildings!

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February 2012


Foundation Waterproofing and Drainage How to keep residential below-grade spaces dry Building a home requires some very careful considerations. One very important consideration involves waterproofing your foundation. Other than burning down, probably the worst thing that can happen to a residential structure is a foundation problem. The foundation is literally what the house is built on, what keeps the building where it was built, transferring the dead loads and the live loads into the ground.The source of the vast majority of foundation problems is water. Wet soil beneath a foundation can swell or lose strength. And that's only the first reason to keep the foundation dry. Then there's the little problem of wet damp basements and crawl spaces that can breed mold and make below-ground interior spaces generally unpleasant. The problem is that typical concrete is not waterproof. Although uncracked (and what concrete is uncracked?) it will typically keep out liquid water, water vapor can still penetrate quite easily. Keeping water drained away from concrete foundations and preventing it from moving through the concrete are essential to a successful structure. Waterproofing is sprayed onto the foundation wall prior to backfilling. Accomplishing our goal, then, of draining any water away and ensuring a dry interior space below grade can be relatively simple or fairly involved depending on geographic location, climate, topography, soil/water table conditions, and depth of the foundation. There

are three components of any system designed to keep water out. These are, from the bottom up: • Drains to move water away from the bottom of the foundation • Wall treatment to prevent moisture from moving through the wall and to route water down to the drains • Ground surface treatment adjacent to the building to direct surface water away And remember that since this will mostly be underground when the building is complete, doing it right the first time is critical, because coming back to fix it is an expensive undertaking. Use the links above to learn how to accomplish these three important tasks.Many homeowners are under the assumption that their foundation has indeed been waterproofed when in fact it has only been damproofed. There is a big difference between these two techniques. Damproofing may prevent a certain amount of water vapor from transferring into your basement, but in order to effectively protect your basement from water infiltration it must be properly waterproofed. In the past, builders paid little attention to waterproofing foundations. Years ago builders did not even bother to apply a tar coating and they also did not have access to large sheets of plastic to retard the transfer of water vapor.

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Jim Spiegel SealBoss ® Concrete Solutions www.SealBoss.com jim.spiegel@sealboss.com USBW usbw@uswaterproofing.com Ryan Koschuck Dryshield ryan@dryshield.ca www.dryshield.ca Waterproofing Association Gauteng Paul Koning pkoning@telkomsa.net Scott Nordhoff Nordhoff Basement Waterproofing info@bwpcs.com www.DryUsUp.com Phil Llewellyn Safeguard Chemicals SA CC phil@safeguardchem.co.za www.safeguardchem.co.za

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Waterproofing Nabaki Afrika supplies an extensive range of waterproofing products for any waterproofing requirement, domestic homes or industrial requirements. If you’re looking for a waterproofing solution – ‘just ask Nabaki’. Xypex® makes the world’s preeminent concrete waterproofing system: admixtures and coatings are mixed into or applied to concrete to become waterproof by crystalline penetration. Xypex® creates a permanent crystalline structure deep within the pores and capillary tracts of the concrete mass to prevent the penetration of water and aggressive chemicals. Crystalline penetration resists hydrostatic pressure because it’s independent of surface adhesion to be waterproof. Xypex® becomes an integral part of the concrete and it can be painted over (use a plaster primer), plastered, tiled, or in the right conditions, left as a topcoat. In contrast, barrier-type products function only at the surface of the concrete. Xypex® will never deteriorate like a membrane and does not require protection against drilling or puncturing and it will not need sealing, lapping or finishing of edge seams. It will even cover hairline cracks up to 0.4mm. Overall Xypex® will be cheaper to apply than most other materials. Xypex® was used during construction of the Bank of Tanzania and was the only product that proved to be effective to halt the water ingress (sea water) below ground level. Five large moneystoring vaults were the focus of this Xypex® project. The below grade foundation is subjected to eight meters of head pressure. 22

Because of this situation, two coats of Xypex® were applied to the interior of the vault walls and floor slab. Before the application of the final coat, the cold joints around the base of the slab were routed out and treated with a slurry of Xypex® Concentrate, followed by Xypex® Patch'n Plug.

Duram® supply Rainkote Fibre-Tech for roofs and parapets, walls, gutters, fishponds and water features. This product is a pure acrylic that contains fibres for strength so there is no need to add a membrane. Duram guarantee Rainkote Fibre-tech for 12 years.

Xypex® was used during the repairs to the Panama Canal and the Sydney Opera House and has been used in most water treatment plants around the world. A complete list of projects is available on the Xypex® website www.xypex.com.

Duram®’s Flexikote is roof paint that is used with a membrane to provide a strong barrier against water and moisture. Duram®.guarantee the product for 8 years.

Xypex® can be used in any concrete waterproofing application whether it’s a swimming pool, the foundations of a house, concrete water tanks and flat roofs. If there’s concrete involved and you need waterproofing you can use Xypex®. Nabaki Afrika also supplies waterproofing products made by Conmix®, Alcolin® and Duram®.

Stopaq® is a unique product. These viscoelastic coatings and sealants are used in many versatile applications ranging from pipelines (for corrosion protection) to subsea piles and from rail to cable joint protection in buildings.

Conmix® supply a comprehensive range of water proofers for industrial and domestic applications. Conmix® manufacture waterproof additives for cement, waterproofing coatings, waterproof tile adhesives, bonding agents and cementitious waterproofing membranes. Conmix® have also now introduced PVC waterbars (also known as waterstops) used in construction. A waterstop provides for the sealing of construction and expansion joints in various concrete structures. Alcolin®’s Permobond is supplied in concentrated and ‘ready to use’ formulations. It’s added to slurry’s and plaster or surfaces to create waterproof barriers in walls, floors and water tanks and most concrete applications.

Stopaq® sticks to anything except people and if you search YouTube you will see Stopaq products used in the field. Videos are also available at www.stopaq.com. Stopaq® is used to seal joins in metals, wood (window frames), glass (windows and tanks), timber, plastics (like gutters) and mortar. Stopaq will block water flowing through holes in walls. Synroof Hi Build is a popular acrylic coating (available in white) used on sloped roofing as a waterproof coating. It is suitable for old asphalt surfaces, concrete roofs and metal roofs, It is applied in separate coats with a brush, roller or sprayed on to build up a thickness of between 0.5mm and 1.5mm. When it comes to waterproofing, Nabaki Afrika has a solution, so ‘just ask Nabaki’. February 2012


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February 2012

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subcon tanzania limited

P. O. Box 2472, Dar es salaam, Tanzania Plot 65 Mbozi Road, Chang'ombe Tel: +255 22 286-3107 Fax: +255 22 286-3881 Mobile: +255 71 559-5099 +255 71 432-3319 E-mail: info@subcon.co.tz

CELEBRATING 43rd ANNIVERSARY Total Roofing, Waterproofing & Flooring Solutions  APP & SBS Modified Bitumen Membranes: o Polyester Reinforced o Fibreglass Reinforced  Hot & Cold Applied Bitumen Coatings  Fibrated & non- fibrated reflective coatings  Acrylic Elastomeric Coatings & Bonding Agents  Heavy Duty Bitumen Sealants  Expansion Joint Fillers and Sealants  Polysulphide and Polyurethane Sealants  Insulation – Rigid, Fibreglass & Polyisocyanurate  Geotextiles  Construction Chemicals  Water Bars / Stops

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February 2012


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Tanzania

makunganya street p.o. box 2564, dar es salaam, tanzania showroom: +255 22 21222807/2115140 cell: +255 754 310980, fax: 2115256 e-mail: info@tzsignwriters.com


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National Housing Corporation Providing Affordable Housing to Kenyans National Housing Corporation (NHC) is a State Corporation established in 1953 as the Central Housing Board. The Board became NHC in 1967 following the amendment of the Housing Act Cap 117 of the laws of Kenya. The mandate of NHC is spelt out in the Act. NHC endeavors to make Kenya a “decently housed nation”. To achieve this vision, the corporation plays a leading role in providing affordable housing and related services to Kenyans.

Kenya

Objectives Its main Corporate Objectives are to achieve a sustainable financial base,create an enabling operational environment for the implementation of the corporate plan, operationalize the Public Private Partnership framework, offer innovative and market driven housing, reconfigure Internal Business Processes within NHC in line with Best Business Practices, transform NHC into a learning organization, participate in the formulation, review, repeal and amendment of the existing legal framework governing operations of the Corporation and the housing sector and use of appropriate modern technology to drive supply of housing stocks

Products and Services The Corporation offers the following products and services: Tenant Purchase Housing Schemes In this type of development, NHC develops houses for sale to individuals who pay a deposit (which is a percentage of the selling price) on application while the balance is paid within 18 years through monthly remittances. The interest rate on the loan is currently 13% p.a. Rental Houses In this type of housing, NHC develops houses for rental purposes to individuals. The houses are owned by NHC except where there is an agreement between NHC and a Local Authority for the latter to purchase the houses through a loan repayable in 40 years. Development of Rural and Peri-Urban Homes The Corporation provides financial assistance to individuals who wish to construct residential houses in the rural or peri-urban areas. The financial assistance is in the form of loans which are secured on first charge of

the property being offered as security. The maximum amount currently advanced is Kshs 3 million at an interest rate of 13% p.a. The maximum repayment period is ten (10) years. Other products and services These include the following: Site and Service Schemes; Project Management; Provision of Building Plans to Customers; Development of Roof Trusses,; Doors and Door Frames; Provision of Estate Management Services; and Building Construction Supervision. Achievements The most visible achievements of NHC since its establishment include the following:Delivered over 44,000 housing units spread all over the country at an estimated cost of Ksh.5.6 billion (US$ 59m). Advanced over Ksh.704 million (US$ 7.5M) in rural and peri-urban housing loans to more than 8,000 Kenyans. The Corporation is currently developing 980 housing units at an estimated cost of Ksh.2.9 billion (US$30.5m). ISO 9001:2008 Certification The Corporation was awarded ISO Certification for Quality Management Systems in September 2010. The process to this certification involved reviewing all the Corporation’s activities which affect its customers. NHC reviewed and documented the processes of project implementation management, land acquisition, allocation of properly and advance of house loans. Techniques for handling customer complaints were also reviewed and documented. To regularize the corporation’s Management process, a Quality Manual was prepared and circulated to all staff. NHC Rating National Housing Corporation is categorized by government as a commercial State Corporation. The implication of this is that NHC is expected to undertake its activities and declare a dividend at the end of every trading year. The Corporation has endeavored to realize this target within the constraints of ensuring that affordable housing is delivered to Kenyans.

Kenya’s Housing Minister Soita Shitanda (2nd left on front row) accompanied by top Ministry officials and NHC management on a visit to the EPS Factory.

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In our view, the Corporation is highly rated in the market since schemes are usually oversubscribed upon market notification. Challenges The main challenges facing the corporation include high cost and inadequate suitable land for housing development in urban areas, Increased costs of credit for both construction finance and long-term mortgage loans, increasing costs of construction, inadequate infrastructure to support housing development in urban areas and increase in national poverty dampening affordability The Expanded Polystyrene (EPS) Panels Factory The Corporation is currently developing an EPS

panels factory in Mlolongo, Athi River District. This factory is expected to commence production in January, 2012. The idea of putting up the factory was informed by the cost of housing construction, time it takes to construct a house using conventional technology. This has a direct bearing on the cost of production, diminishing supply of quarry stones, environmental effects of mining building stone and the huge shortfall in housing supply and the expectations of Kenya Vision 2030.

focus - housing Kenyans. In the long-run however, it hopes that the East African market will have seen and accepted the benefits of the EPS technology.

The factory and NHC Goals NHC is a principal player in the Kenya Vision 2030 flagship project of developing 200,000 housing units. To be able to play its role effectively, an efficient method of developing housing was required and the EPS technology was identified as a way of doing this.

“This is the portion of the market which has not been adequately catered for since majority of the developers perceive this as a risky category”, says the CEO. “The risks can be mitigated. As demand for housing expands as a result of the devolved government, it is my desire to see more mutually beneficial engagements with county governments in developing affordable housing. This will be especially important in view of the new investment that NHC has made in the EPS Technology”.

Market Noting the high demand of housing in Kenya and the need to identify a cost-effective and efficient way of development, NHC’s short term plan is to meet its needs for the panels. In the medium and long term, the plan is to supply the local market since the Corporation does not wish to lose its main

EPS FACTORY PROJECT TEAM Client National Housing Cooperation Architects Chief Architect- National Housing Corporation Quantity Surveyors Chief Quantity Surveyor National Housing Corporation Electrical and Mechanical Engineering Chief Engineer - National Housing Corporation Civil/Structural Engineers Chief Engineer- National Housing Corporation Manufacturing Equipment Schnell Home Technodynamica Main Contractor Ernie Campbell Electrical Works Burhani Engineers Plumbing Vagda Plumbers

The CEO’s Vision for NHC The Corporation’s Managing Director and Chief Executive Officer Mr. James Ruitha’s desire is to see NHC play a more central role in the delivery of houses to the lower middle and lower segments of the market.

Mr. Ruitha believes that a more robust involvement of NHC in the rental market would be crucial in effectively stabilizing the prevailing rents.

Kenya

NHC has therefore endeavored to address a market which many developers have left; this is the middle income Kenyans in urban areas including those outside the main towns of Nairobi, Mombasa and Kisumu. The Corporation for example recently completed development of residential flats in both Kakamega and Kisii towns and is now involved in development of tenant purchase housing in Nyeri town.

SPECIAL OFFER FOR RESALE TO CASH BUYERS OF 2 AND 3 BEDROOM APARTMENTS AT METRO FAIR VIEW TOWERS • 2 bedroomed from 4,000,000 • 3 bedroomed from 6,000,000 • Shops from 5,000,000

LIMITED STOCK AVAILABLE FIRST COME FIRST SERVE FEATURES INCLUDE: • 2 spacious lifts • Power backup generator • Fresh water boreholes • Shops are available on the ground • Proximity to town - 5 min drive to CBD

We are proud to be associated with National Housing Corporation CONTACTS: Tel:

020 3513306

Cell: 0724209722 0714159527 0728310200 0733625848

EPL - “Building affordable and decent houses for people”

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Schnell Home, Innovative Building Elements CONCREWALL is an industrial system for construction, composed of a factory produced panel of undulated polystyrene covered both sides by a electrowelded zinc coated mesh. The panels are completed on site with concrete and plaster to realise the different elements (walls, floors, stairs).

We are Proud to be associated with National Housing Corporation of Kenya Schnell Home Advanced Housing Technology provides its customers world wide with advanced technological innovation and exceptional value for affordable housing construction needs.

PROVEN AFFORDABLE HOUSING SOLUTIONS FOR AFRICA Schnell Wire System s.r.l. via Borghetto, 2 B - 61030 Montemaggiore al M. Italy Tel: +39 0721 878711 Fax: +39 0721 8787330 schnellhome@schnell.it www.schnell.it

Adams Arcade (Eastern Africa Regional Office) P.O. Box 14071-00800 Off Suna Road Ngong Road Junction Nairobi Kenya mob: +254722518600 nicholas.simani@schnell.it

Applications

Advantages

- Residential Buildings - Commercial Buildings - Industrial Buildings

- Resistance to Earthquakes - Resistance to Hurricanes - Resistance to Fire

- Schools - Churches

- Thermal Insulation - Sound Insulation

- Swimming pools - Wall fencing - Office blocks - Hospitals

- High Mechanical performance - Light and Easy to handle - Modular and Versatile - Quick and easy to instal

- Health Centers - Stadiums - Site offices

- Increases speed of construction - Reduces project Cost - Environmentally Friendly

- Low Cost Housing Estates


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Symbion

Using Architecture to Improve Life We aim to design with conviction, to the highest of standards, in a sustainable manner that provides both client and user with what they need, to a realistic budget and within a time scale agreeable to all .

Kenya

Symbion is committed to understanding the needs of our client’s, resolving complex problems and delivering good architecture for the benefit of all. As a practice we look to inform the built environment in which we live, through considered yet innovative design, capturing both the poetry of our client’s imaginations and the desire to create something useful yet sublime. In doing so, we strike a balance between the ambitions of a project against the practicality and responsibilities of bringing it to fruition, assessing the issues involved and providing appropriate solutions. We believe the power of architecture can shape our communities, our memories and our ambitions beyond the dimensions of individual buildings; we believe architecture is about making life better. DESIGN APPROACH The way of life on our continent is evolving at pace and we, as it inhabitants must evolve with it not only as designers but as a community – upholding values and concerns that were previously considered unimportant or relegated

over others. No longer is African architecture solely about functionality and profitability but about an emerging consciousness of a continent on the brink of lasting change – bringing greater opportunities, higher expectations and a better quality of life across the board. The manifestation of this architectural vocabulary should not be imported from other parts of the world but only informed by it – this is Africa and in the spirit of self determination should develop an architecture that takes into consideration its origins, context, climate, geography, history, tradition, materiality and environment. We aim to design with conviction, to the highest of standards, in a sustainable manner that provides both client and user with what they need, to a realistic budget and within a time scale agreeable to all. PRACTICE PROFILE Symbion is a leading architectural design practice with a broad portfolio of projects, of varying scale and complexity across a multitude of sectors. We offer a range of services including; Architecture,

Interior Design, Project Management, Contract Management and Urban Planning. The practice was established in Nairobi, Kenya in 1980, going on to deliver projects in the Seychelles between 1986 and 1995 and establishing associate offices in Uganda in 1993 and Tanzania in 1994. In 1998 Symbion acquired Conscom Botswana Ltd. and established a presence in southern Africa working on a variety of commercial, healthcare and institutional projects in the region. The latest entrant to the Symbion Group is Symbion Mombasa which came into operation in 2005 after the acquisition of an existing practice at the Kenyan coastal city. The practice has since shifted in its organization from a partnership to a limited liability company forming a group of design practices under the umbrella of the Symbion Group. The group presently boasts a compliment of over 120 staff, across 5 offices in 4 countries, 8 Directors, and around 75 technical staff. As a practice we believe that the quality of our work stems from the quality of its members and a

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5 the group to the next level, as designers and as a business, exploring these new markets and others as the world around us changes.

COLLABORATION The various offices work independently and together sharing knowledge and skills as a group of construction professionals in the best interests of our clients and each other. We work with the best consultants across the regions we operate in and where certain expertise is lacking, collaborate with architects, engineers and other construction professionals alike across the globe. Together we strive for excellence and endeavor to achieve it, in our creativity, professionalism and ethical obligations.

PROJECTS Project : Equatoria Tower, Juba, South Sudan Client : UAP Properties Ltd. Year : 2011 - Ongoing Value : $12m USD The development comprises a 12 storey commercial high rise building to be named Equatoria Tower and it will be the first modern high rise building of its kind in Central Equatoria State and South Sudan. The building includes; ground floor retail space ideal for a signature restaurant, coffee shop, banking services and above 9 floors of office space and two executive penthouse apartment s on the top floor. (Phhoto No. 1 and 11)

THE FUTURE Symbion has grown from strength to strength through the years and has expanded its operations to more than seven countries across the continent, with more markets now opening up to those willing to explore. In 2011, the practice broke ground on its first project in the new Republic of South Sudan – a 12 storey commercial tower in the current capital city of Juba and soon to be the tallest building in the country. Since doing so, Symbion International has explored a number of other opportunities not only in South Sudan but other fast growing and emerging markets in the region. It is our desire to be better and through continued investment in our members, sound planning and quality assured growth we will be looking to take

Project : Toyota Showroom, Waiyaki Way, Nairobi, Kenya Client : Toyota Year : 2011 Value : $2m USD Comprising a total gross area of 2,070 sq.m, the project is a new spare parts sales and vehicle servicing outlet for Toyota East Africa Ltd. It comprises a two storey building with a spare parts retail outlet and staff offices, a workshop for vehicle servicing, and a services building. The brief required a state-of-the-art facility that

communicates Toyota’s corporate image as a leading global car manufacturer, on a tight site, and that could be constructed in the shortest time possible. The proposed design solution employs a variety of cost saving, sustainabledesign strategies as well as advanced IT features and security systems. (Photo No. 2) Project : Villa Rosa Hotel, Nairobi, Kenya Client : Simba Colt Auto Year : 2011 - Ongoing Value : $25m USD A premier hotel accommodating 174 guest rooms, 2 presidential suites, a banqueting hall, conference facilities, shops, restaurants, bars, gym, spa and out door swimming pool. The location is fantastic close to the heart of the city providing an upmarket ‘one stop shop’ entertainment and recreation facility. (Photo No. 3)

Kenya

policy of continued professional development and investment in our office staff is Key to the success of the Group as a whole.

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Project : Standard Chartered Bank Head Quarters, Nairobi, Kenya Client : Standard Chartered Bank Year : 2007 Value : $25m USD Symbion were commissioned to design Standard Chartered Bank’s new headquarters building in Nairobi, comprising 2 wings each measuring 1000sqm, a central atrium, gym, canteen and conference rooms. There were some special services provisions for the central data handling areas and ventilation strategy for the building using a hybrid system of passive and mechanical

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9 movement of air. (Photo No. 4) Project : Kensington Luxury Heights, Kampala, Uganda Year : 2008 on-going Value : $8.95m USD An award winning residential development located at Kisaasi, 15 minutes from Kampala Central Business District. Kensington Luxury Heights consists of 144 town houses, bungalows and villas set in beautiful landscaped surrounding and ranging from two to five bedroom units within a contemporary master-planned gated community. (Photo No. 5 and 10) Kenya

Project : Nyayo Housing Estate, Embakasi, Nairobi, Kenya Client : NSSF Year : 2000-2012 Value : $250m USD This large development consists of 3 phases of construction providing a total of 4,774 Units for middle income families living in Nairobi. The accommodation provided is a mixture of Selfcontained Maisonettes, Duka Maisonettes, local shopping facilities and clusters of 4-Storey 8 Unit Apartment Blocks. The entire site is being provided with a modern road network, independent water supply, upgraded electricity supply and connection to Nairobi’s existing sewer system. In addition, sites are allocated

for provision of special-purpose plots, religious facilities, shopping and medical facilities, nursery schools and primary schools. (Phhoto No. 6) Project : Kigali Serena Hotel, Kigali, Rwanda Client : Serena Hotels Year : 2008 - 2012 Value : $10.5m USD The existing hotel and conference centre, required the addition of a new block of guest rooms, reconfiguration and rebuild of the swimming pool and in a later phase introduction of a presidential suite of rooms. Further work will involve the construction of new rooms on top of the existing hotel block, the reception renovation and replanning of the public area lounges, bar and poolside restaurant.(Photo No. 7 and 12) Project : Hotel Polana, Maputo, Mozambique Client : Serena Hotels Year : 2011 Value : $22.5m USD Symbion created a master plan for the development of the existing Polana Hotel and the more modern Polana Mar bedroom extension. The scope of the entire site potential has culminated in a complete refurbishment of the main historic building. All public areas are being created with the magnificent

10 ballroom being returned to its former glory. New restaurants linked to the existing kitchens and each of the hotel’s many varied bedrooms is in the process of being completely renovated. The magnificent swimming pool area has also been upgraded and re-landscaped together with a new health spa and meeting / conference facilities incorporated into the overall project. Symbion have coordinated the entire consultant team comprising Kenyan, South African and Mozambican professionals from its base in Nairobi. (Photo No. 8) Project : Mahalapye District Hospital, Botswana Client : Government of Botswana Year : 2005 Value : $45m USD Upgrading and extension of existing hospital to district hospital status. New overall master planning and design of various aspects of the hospital. Single storey concrete framed structures to house medical records, x-ray departments, mother and childcare, maternity wards, paediatric units, physiotherapy units, staff accommodation, administration blocks and ablution blocks. (Photo No. 9)

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CONGRATULATIONS SYMBION INTERNATIONAL ARCHITECTS LTD

P.O. Box 43436 Nairobi 00100 Kenya Tel. (+254 20) 2217002/2216990/315680 Fax: (+254 20) 2217005/2218314 Email: sentrim@sentrim.co.ke

We are proud to be associated with Symbion International Architects and we congratulate them for their professional work and also for having faith in our company to execute the most complex and demanding projects using Marble, Granite, tiles and other stone finishes in their projects in Eastern Africa. Recent projects with Symbion Architects include; 1. Polana Serena Hotel (Maputo-Mozambique), 2. Serena Kigali Hotel (Rwanda), 3. Villa Rosa Hotel (Nairobi-Kenya), 4. Nairobi Serena Hotel among others.

We design,

we supply,

we fix.

We are proud to be associated with Symbion International Architects in the construction of Standard Chartered East Africa Headquarters as the Main Contractor Kenya

Chiromo Court off Chiromo Road, Westlands P.O. 46436-00100 Nairobi, Kenya Tel: (254-2- )3742633/2506/2715 Mobile:(+254) 0733740594, Wireless:(254-2-) 8052789 Fax: (254-2- ) 3742479 Email:armgltd@ armgltd.co.ke

February 2012

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URBAN MOBILITY

Schindler Limited We are proud to be associated Symbion Architects Longonot Place, 1st Floor, Kijabe Street, P.O. Box 43410 - 00100, Nairobi, Kenya. Pilot Line: 340819. Tel: 340669/312115/2225978/2226938, Fax: 313279. Email: info.nbo@ke.schindler.com.

Dinesh Construction Ltd. Building & Civil Engineering Contractors.

We are proud to be associated with Symbion Architects Kenya

Tausi Road, Off Muthithi Rd, Westlands. P.O. Box 49057, G.P.O. 00100 Nairobi, Kenya. Email: dcl@dinconkenya.com Tel: 020-3741222, 020 -3747654, 0722-511714, 0733-511714 Fax: 020-3744774

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February 2012


We are proud to be associated with Symbion International Architects



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February 2012

37


Deloitte Botswana Settles In by Ezra Mogwe

“Deloitte” is the brand under which many dedicated professionals in independent firms throughout the world collaborate to provide audit, consulting, financial advisory, risk management, and tax services. These firms are members of Deloitte Touche Tohmatsu Limited (DTTL), a UK private company. Each member firm provides services in its geographic area and is subject to the laws of that particular country. Deloitte first entered the Botswana market a few decades ago and has, since then, lived up to their slogan – be exceptional – in terms of service provision. This led to expansion and the need for premises which could accommodate this growth.

Botswana

In this search, Deloitte engaged Time Projects to design and construct their new offices. The preliminary design of the building had already been done by the time Deloitte showed a keen interest in acquiring it. After an agreement had been reached, works started in November 2009 (with earthworks) and the project was completed in March 2011. The building was handed over to Deloitte for occupation, which launched an official opening of this monumental building in February 2012 once they had settled in. The cost of the entire project amounted to P39.2 million (US$5.5 million). The client (Deloitte) previously rented a building for their operations in Fairgrounds, not far from their new offices, but they were looking for place to buy where they could nest their new home. The offices, which they would move to had to reflect the magnificent stature of the organization and also be similar to their existing offices in Johannesburg (South Africa) and Windhoek (Namibia). The ultimate end was to ensure uniformity. To achieve this end Time Projects had to travel to these offices in order to get a feel of what was expected. In addition they had to work very closely with South African interior designers, NMC, who did the interior for these offices.

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unique, as Heinrich Malan of Time Projects pointed out. There is also basement parking reserved for staff. The actual structure is made up of two wings and has a middle atrium with lots of glass play throughout, even in the boardrooms and training room on the ground level behind reception area. The refreshment area behind the reception boasts exquisite lighting which signals elegance and class – truly exceptional. The design philosophy is geared at ensuring maximum efficiency in Deloitte’s functionality while encompassing a level of transparency and openness. An open-plan approach has been adopted, whereby there are huge open spaces where employees can work, and offices designated for partners have glass partitions. This makes “sleeping on the job” impossible! Even the elevator in the double-storey building is especially made of glass, which is a rather rare and remarkable sight, so that it is in accordance with this overall design philosophy. Special Considerations In addition to the elevator within the building, there are also two (2) ramps on either side of the building (outside) to allow those in wheelchairs easier mobility in the offices. Taking the environment into consideration, wastage rain water harvesting is practiced for irrigation purposes, which ensures that all the colorful landscaping remains vibrant. This option was taken to minimize water wastage in a country where water is scarce. Also, amidst the recent power cuts which have plagued Botswana, a backup generator has been installed. The building is positioned on east-west axis to ensure minimum heat gain in the winter and maximum heat gain in winter.

Brief Description The building is a concrete structure with brick infill and aluminum windows. Office spaces and boardroom floors are covered with durable carpets while the lobby, staircase, kitchens, and toilets are finished with high quality granite. Landscaping plays an important role in enhancing the external aesthetic of the building. The “funky car pots” on either side of the building are truly

Challenges During construction, it was discovered that the sewer main located a few meters from the back of the building was incorrectly positioned, which consequently meant that it ran into the site. It then had to be repositioned at the cost of the developer and sequence of the construction also had to be slightly altered. Furthermore, there were rains which threatened the prompt completion of the project, but they came to pass and it was business as usual.

Project Team Project Manager / Developer: Time Projects (Botswana) Quantity Surveyor: MLC Quantity Surveyors Mechanical & Electrical Engineer: A.R Edwards & Associates

Civil & Structural Engineer: ADA Consulting Engineers Architect: Paul Munnik Architects Main Contractor: Wharic Earthworks: Excavator Hire

February 2012



10 years of Best Projects Koeberg Interchange Phase 1 bags top prize Construction World’s prestigious Best Projects Awards was held for the 10th time late last year at the Royal Johannesburg and Kensington Golf Club in Linksfield, Johannesburg. Seventy entries competed in the six categories of the awards. The awards evening was attended by more than 220 guests and has cemented its reputation as one of the most prestigious awards for the construction industry. The projects were judged by Trueman Goba, executive chairman of Goba Consulting Engineers; Rob Newberry, MD of Newberry Developments and Colin de Kock, former executive director of the Gauteng Master Builders Association. South Africa

The judging The judges commented that the standard for this year’s competition was high and the competition extremely tough. In certain categories, special mentions and one or more highly commended awards were given – an indication that there was often a marginal difference between deserving projects. The judges scored entries based on the criteria for each specific category and these scores were adjusted on a weighted average basis to ensure equitability across all entries. Entries were judged according to the criteria for each of the categories as set out in the call for entries. Categories A, A1, C and D shared the same criteria, which were: Construction innovation technology,corporate social investment, design innovation,environmental impact consideration, health and safety, quantifiable time, cost and quality, and risk management. Category B1 had four judging criteria, similar to the first four above, while category B1 had the above criteria bar ‘construction innovation technology’. The Koeberg Interchange The winner of the civils category was the Koeberg Interchange which is the largest road project by value commissioned by the Western Cape Provincial Administration. It s completion marked the end of some of the worst traffic snarl ups in Cape Town at the junction of the N1 and M5 highways. The project The project which was undertaken by a JV between Group 5 and Power Construction had the provincial government of the Western Cape as the client, which owns the N1 from Salt river

to the R300 (including the Koeberg interchange). According to Group 5, the project involved the construction of elevated linking overhead Ramps A and B (each +-650m long), one in each direction list 1of winners business cardThe size ad.indd over the existing interchange, that provide a free Winner (building) flow of traffic, between the N1 and M5 highways Sandton City Repositioning Phase I and which also include two cast in-situ bridges Aveng Grinaker-LTA and WBHO (each 67m unsupported span over eight rail tracks). Reinforced Earth structures with in-fills Winner (civils) formed the on and off ramps to the elevated Koeberg Interchange Upgrade Phase I overhead Ramps A and B. Paarden Eiland Joint Venture: Group Five The N1 has two extra lanes added to the outbound and Power Construction carriageways between the Interchange and Sable Road and one extra lane on the N1 incoming Category A1, ‘Civil engineering and between Sable road and the Interchange, while building contractors outside South Africa’ the Salt River Canal was moved 15 m to the west only so as to accommodate the widening of the M5 Winner Viaduct to accommodate an additional lane in each direction. Asphalt milling and overlays to the Bagatelle – Mall of Mauritius existing roadways in the Interchange were also Joint Venture between Rehm Grinaker done. Construction Company and Cogir developed by Atterbury Mauritius Record breaking Consortium and ENL Land The project boasts the longest precast bridge U-Beams in Southern Africa at 40 metres in length and 70 tonnes in weight each, while the Pre-stress tendons in PC Beams and in-situ bridge sections on this project amounted to 560 km of strand. During construction an enormous temporary “mechano set” gantry over a 8 rail line servitude to support an in-situ post tensioned box deck clearing a rail span of 67 meters had to be erected.

Category B1, ‘Specialist contractors or suppliers’ Winner Construction of Two Chimneys and Nine Silos at Medupi Power Station Karrena – Concor Joint Venture

Challenges According to Group 5 who were involved in the project, accommodating 200,000 vehicles passing the interchange daily and relocating existing services without proper records were only some of the challenges that had to be surmounted, in addition to moving of the Salt River Canal in a winter rainfall area and transporting and positioning of very large and heavy precast bridge beams which was mainly carried out at night, during periods of reduced traffic flow.

Category B2, Professional Services, Winner Bedford Dam: Ingula Pumped Storage Scheme Braamhoek Consultants Joint Venture: Arcus GIBB, Knight Piésold and SSI Engineers and Environmental Consultants PPP Projects Winner Gautrain Bombela Concession Company

Work on the project started in 2008 and ramp A was opened to traffic in time for the start of the world cup in 2010. Ramp B was opened in July 2011, 5 months ahead of schedule. The balance of minor works was completed before the deadline of end November 2012..

AfriSam innovation award for sustainable construction Winner Oudebosch Eco Cabins – Kogelberg GVK Siya Zama Building Contractors

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Rehabiliation of Gamtoos Conveyance System South Africa

The rehabilitation of the Gamtoos Main Conveyance System, which was a five year programme, was completed last year. The system which was first constructed in the 1960’s is 64.7 kms long and conveys raw water from the Kouga Dam to Loerie Dam. The system comprises of open canals with a total length of 34.8 km, 7 covered canals with a total length of 3.0 km, 23 tunnels with a total length of 11.2 km and 29 siphons with a total length of 15.7 km. Phase 1 and 2 of the Rehabilitation Project addressed the more urgent works required, prioritized by means of a risk analysis, and these are now complete.

Raw Water The system currently transfers approximately 80 Ml/d (0.9 cumec) of raw water into Loerie Dam where it is treated to potable water standards for use by the Nelso Mandela Metropolis (NMM). This constitutes some 30% of the NMM’s potable water demand. Due to limitations within their distribution system, parts of the NMM can only be serviced from this source. The Loerie Dam has a small catchment and a retention capacity of 24 days of current demand. The dam is thus highly dependent upon this transfer to meet this portion of NMM’s potable water demand.

In 2009/2010 WK Construction followed through with the successful completion of three DWA, Gamtoos Government Water Scheme Projects. The scope of works involved the rehabilitation of three siphons, all of which formed an integral part of a water conveyance system supplying both the irrigation farmers in the Gamtoos Valley and subsequent treatment and distribution of some 0.9cumec to the Nelson Mandela Bay Municipality. The siphons were completed within two,10 day shutdown periods. Failure to complete within these shutdown’s would have resulted in large and long term damages to both the Valley (GDP of approximately R 700m) and the NMBM.

WK CONSTRUCTION (PTY) LTD CIVIL ENGINEERING & BUILDING CONTRACTORS REG Nº

1985/002185/07

VAT REG Nº

4310130226

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In addition to providing raw water to NMM, the system is the sole source of raw water to the villages of Hankey (1 Ml/d) and Patensie (0.5 Ml/d) located along the route of the conveyance system. These villages have their own treatment facilities. Notwithstanding the importance of this inter-basin transfer, for the sustained economic development of the NMM, the major volumetric users of water from the system are the irrigators located within the Gamtoos River Valley, who are entirely dependent upon the system for their livelihood as the Gamtoos River water is brackish and not

Line 16 Siphon Critical path involved the repair of 305 concrete pipe joints within 840m of 2.44m diameter prestressed concrete pipe by means of custom designed EPDM mechanical seals. Bodker Tunnel/Siphon Situated at the base of an almost inaccessible valley, the core focus on this contract was to install 140m of 1.9m dia steel pipe within a 2.4m dia concrete tunnel adjoining two steep siphon sections on either side. De Koning Siphon The critical scope of works on this contract was to lay approximately 340m of 1.8m dia welded steel pipe, tying into the existing inlet and outlet portals. A 70m long section under a designated wetland area was slip lined with 316 stainless steel cans welded in-situ.

“Driven by T excellence F since 1960 “ E

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February 2012


suitable for irrigation purposes. The valley has a GDP of some R800m/ year and is a major source of agricultural products (citrus, vegetables and dairy products are supplied directly to retailers) within the region. Challenges According to Amelius; two great challenges stood out apart from the normal engineering and construction challenges of road, railway and river crossings and high ground water levels among others. These were determining a risk assessment process and the other was carrying out the rehabilitation works on a ‘live system’, with work time limited to 2 week system shut-downs scheduled during times that demand was historically low. As part of the Conditional Assessment of the conveyance system, a risk assessment process was followed. The real challenge was to develop methods and norms whereby the condition of a specific element of the conveyance system could be evaluated and “quantified” in order to obtain a level of probability of failure of the specific element. Together with the potential impact of a partial or complete failure of the element on the water supply, provided the level of risk that could be associated with this particular portion of the conveyance system. This enabled them not only to rank within similar groups of elements, for instance all reinforced concrete pipe siphons, but also to rank amongst various elements, for instance did tunnels pose a similar risk as prestressed concrete pipe siphons? This provided the ability to prioritize the work and to provide a rational rehabilitation programme to the DWA.

South Africa

Visual inspections played an important role to determine the condition of all elements and various criteria were applied to define the level of degradation.,In the case of pre-stressed concrete pipes, Eddy Current Scanning techniques had to be used to determine the inherent remaining strength and integrity of pipes within a siphon and therefore the probability of failure of this element. Construction Review talked to one of the contractors involved in the project Peter Baxter of WK construction, a building and civil engineering construction company which carried out three of the contracts for the works. Contract No. W 10063 in which they carried out works on the rehabilitation of Line 16 siphon, Contract No. W 0082 involving rehabilitation of Bodker Tunnel/Siphon and Contract No. W 0084 – WTE which involved rehabilitation of De Koning Siphon. As part of the construction phase, the major challenge was to carry out the rehabilitation work on a “live system”. The only window of opportunity to perform certain critical tasks on the system itself was during the two, two-week dry periods the Gamtoos Irrigation Board (GIB) could offer. It was for instance quite a challenge for WK Construction to re-line a concrete lined pressure tunnel, 2.4m in diameter, with the launch pit seated at the base of an almost inaccessible valley, within this stringent time period. By an innovative approach, the full 140m length was relined by means of a 1.9m diameter steel liner within a period of two weeks. Going closely Affairs further

forward all elements of the conveyance system will be monitored by the agent to the Department of Water (DWA), namely the Gamtoos Irrigation Board (GIB) and remedial work will be initiated at the appropriate time.

Project Team Consultants Mbona Saunders and Wium (MSW – Pieter Maritzburg) Contractors Southern Pipe Contractors (SPC) Shearwater Cerimele JV WK Construction Active Group Management Services AGMS – George) Ursa Civils February 2012

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Queens Park Substation

The 132/11Kv Queens Park Substation located in East London promises to supply stable and sufficient electrical power to the region. The project which was commissioned by the Buffalo City Municipality followed the recommendations done by a Masterplan that identified the need for a new substation to be built. Future load centers were identified and have shown that the largest loads are in the area of the Zoo Substation. An additional 43 MVA is required in order to electrify the scheduled Planned housing program in the East London area. Without spare capacity on the main substations housing and future housing developments cannot be electrified. Currently in the East London area of the Buffalo City Metro Municipality, over 65% of the residential load is supplied from Stafford Substation, a 90 MVA firm supply which already close to peaking at its firm capacity.

When complete he substation will be equipped withtubular low profile Bus-bar configuration; 2 x 40 MVA 132/11 kV-Power Transformers; Space requirements for future 40 MVA 132/11 kV Power Transformer, 2 Power Transformer feeders; space requirements for future Power transformer feeders ; double Bus-bar arrangement; 2 Feeder bays; lightning Protection and substation Earthing. In addition there will be a brick built substation switch/control room housing the 11 kV switchboards for the power distribution cabling or overhead line feeders, outdoor switchgear control panels, OLTC control panels and Quality of Supply panel. The substation will be supplied off a 3,5 km 132 kV overhead line supported on steel lattice Poles structures to be constructed between Buffalo City’s Woodbrooke and Zoo Substations. The projects site presented a challenging terrain consisting of a very steep slope and so a conventional substation layout was not feasible. For instance aspects such as an effective stormwater drainage system, electrical equipment that needs to be accessible from a maintenance perspective and the offloading of

40MVA, 132/11kV, Power Transformers had to be considered in the substation layout design. To overcome this challenge the team designed an effective stormwater system that allows all rain water to flow into a pond at the lowest side of the substation site. Addition to this, the 132kV yard equipment are being installed, not on one platform level but five different platform levels that were created for the 132kV equipment. The terrain had one advantage because by installing the 132kV outdoor equipment on different levels a low profile busbar system was achieved which reduced the visual impact on the environment a characteristic normally evident in substations. The electrification will add an additional 43MVA onto the BCMM East London Network and so it will be necessary to onstall a 40mVa firm supply while the choice of a 132kv voltage was informed by the fact that Escom has a 132kV network. With new capacity coming online on completion of the substation sometime in 2014 the East London area electrical supply will be able to meet any future housing developments needs for electrification.


Plot 160A Bombo Road, P.O. Box 172, Kampala, Uganda, Tel: +256 414 567305, +256 414 567331, (NEW TEL NO.) +256 312 203110, Fax: +256 414 567784, (NEW FAX:) +256 312 203111, Email: roko@roko.com , Website www.roko.com.

Rwenzori Towers (Uganda)

We are proud to be associated with PINE INVESTMENTS LIMITED as the main contractors in the construction of the RWENZORI TOWERS PROJECT.

Centenary Bank Building (Uganda)

Roko Construction Ltd. supplies Ready Mix Concrete meeting the exact requirements of their clients. Through its team of experienced engineers and concrete technologist, the company can supply high performance durable concrete for all applications and requirements.

The Company has a modern, concrete controlled batching plant with a capacity to approximately 8,000 cubic meters monthly. Located at Nasser Lane in Kampala City centre, the plant is geographically well placed out to ensure prompt and smooth delivery of concrete to sites. Logistics of Ready Mix concrete delivery is managed through efficient utilization of its large fleet of transit mixers as well as concrete pumps. Plot 1-27 Nasser Lane, P.O. Box 172, Kampala, Uganda, Tel: +256 772 730 337, +256 772 767 469, +256 776 008 272, (PLUS ALL THE ABOVE TELEPHONE NUMBERS), Email: concrete@roko.com


Rwenzori Towers Built For Generations

Uganda

The design concept of the building is in a three tower form allowing clients to customise their premises should the need arise. The high rise tower is technologically energy efficient. The office space is a roomy inspirational open plan allowing flexibility for those clients that may wish to customise their own office space. Rwenzori Towers is currently one of Kampala’s iconic buildings. The building has a blend of modern amenities, ample office and parking space that enables its tenants optimise value for money. The project received funds from IFC a member of the World Bank and DEG a member of the KFW Bank Group. The construction of Rwenzori Towers commenced in February 2010 and was completed in December 2011. Location The project location is on plots 4 & 6 Nakasero Road a high visibility site in Kampala’s Central Business District (CBD). It is serviced by Nakasero Road and can also be accessed through Lumumba Avenue. There are three access points to the premises which negates traffic congestion characteristic of Kampala. Rwenzori Towers is the third component of the Rwenzori Developments including Rwenzori House and Rwenzori Courts within Kampala’s CBD. Design concept The design concept of the building is in a three tower form allowing clients to customise their premises should the need arise. The high rise tower is technologically energy efficient. The office space is a roomy inspirational open plan allowing flexibility for those clients that may wish to customise their own office space.The offices have been designed with regard to energy sustainable principles by for instance having the floor to ceiling raised to increase the heights at the ceiling thus allowing for cooler air at working height. The design of the building is modern with traditional, 46

classical design references, and compliments well with the existing Rwenzoris. The internal public areas and wash rooms are fitted with high-quality internal finishes and fittings with polished granite entrances at the lift lobbies. The lettable office areas are finished in a shell and core concept.

Towers is fully air-conditioned which promises to offer a cool working environment alongside the prevailing natural weather conditions. The tower is also fitted with a provision for internet cabling by all telecom service providers to ensure adequate internet solution to the tenants.

Remarkable Features Rwenzori Towers is constructed to current standards and stands head above shoulders in the Kampala skyline. The development comprises of additional amenities such as a building management system (BMS) to enhance efficiency, CCTV cameras for monitoring all movement, access control, fire detection and alarm systems.

Construction Materials The construction materials used were based on quality and durability. Each level of construction was surrounded by reinforced concrete cantilever balconies with curved precast edge panels. Granite, marmoran, sandstone devon and aluminum was used for finishes.

The building offers tenants stunning views of the Kampala city and has 400 parking slots that make it attractive against the backdrop of the city’s congestion. The parking space is in a ratio of 1:40 making it adequate and secure. Two 500KVA standby generators and a voltage stabilizer is another feature in the building with a 3-phase power supply installed with an automatic switch gear. The structure needed advanced crane riggers not just because of the height but also as a result of its uniqueness and the number of corporate organizations and institutions that are to occupy it. Six High speed lifts were installed, two of which are to operate as emergency lifts. Fire alarm and detection systems have been provided alongside a 24 hour security and at the same time there is the provision of access to the roof top with full mast support structures. Rwenzori

Finishes The finish has a gleaming white colour with low maintenance granite exteriors and thermally efficient mirror glass windows. The articulated masonry façades also provide shading from the hot afternoon sun in the West. Rwenzori Towers’ gleaming white was best achieved by use of white paints, giving the structure that glamorous outlook. The interior finishes have also been done using similar materials of paints and granite to ensure suitable and friendly working environment. Conclusion Rwenzori Towers is a large-scale urban development structure within the city centre targeted to host tenants from diverse organizations and institutions of repute. The esteemed tenants already on board are Belgium Embassy, American Towers, ESBC, NIC Bank, Ecobank and Qatar Airways.

Project Brief Developer: Pine Investments Limited Project financiers: IFC & DEG Project Manager: Pro Plan partners Ltd Architects and principle consultants: Bowman Associates – Nairobi Quantity Surveyor: Build Cost Associates Structural Engineers: Ngasi Consulting Engineers Mechanical & Electrical: Multi-Konsults Ltd Main contractor: Roko Construction Uganda February 2012


BUILDCOST ASSOCIATES Quantity Surveyors & Building Economists

Rwenzori Towers

on Plot 4 & 6 Nakasero Road. Kampala.

We congratulate Pine Investments upon the launch of Rwenzori Towers.

We are proud to be associated with the project as Quantity Surveyors. BUILDCOST ASSOCIATES

Uganda

Plot 62, Bukoto Street, Kamwokya, P.O. Box 29835 Kampala, Uganda, Tel: +256 414 259 386 / 251 047, +256 312 266 181, Mob: +256 772 487 791, Fax: +256 414 231 113, Email: buildcost@africaonline.co.ug, Website: www.buildcost.co.ug

RWENZORI TOWERS IS NOT A NEW ADDRESS. IT’S A NEW EXPERIENCE. Thermocool Uganda Limited is proud to partner with Pine Investments Limited on this inspiring new project.

THERMOCOOL AIR CONDITIONIN g

REf RIg ER ATION

v ENTI l ATION

U G A N DA’ S O N LY AU TH O R IZE D DE A LE R info@thermocool.co.ug • tel 0414 255915, 0312 263711 • fax 0414 254510 • Plot 15/17 2nd St, Industrial Area • P.O. Box 31542 Kampala, Uganda • www.thermocool.co.ug

February 2012

47


Zimbabwe Platinum Highway The Selous-Ngezi Road Introduction The demand for a ‘high specification highway’ between Ngezi Mine and Selous Metallurgical Complex (SMC) was driven by the fact that onsite underground mining at the Zimplats’ Hartley Platinum Mine was no longer viable and thus was replaced by a new open-cast operation at Ngezi Mine, situated 78 km from Selous required a cost effective form of ore conveyance. After careful consideration of a number of options, it was determined that hauling the ore by road train would provide the most cost effective mode of delivery. Known as the “Platinum Highway”, this road was then designed and built for Zimplats operations as well as public transport operations.

Zimbabwe

The biggest and fastest road construction contract ever undertaken in Zimbabwe was started on 14 May 2001 and completed to hand over to Ministry of Transport on 29 November 2001. With speed of construction taking priority, the contract was highly mechanised, with 575 pieces of equipment deployed at the peak of the project. The total labour force peaked at 1500. Ten years after completion of the road The road has withstood the test of time relatively well some 10 years after construction, considering its design life was 5 years. The road did however begin to exhibit signs of distress of varying nature in numerous places over the length of the road. These distress problems are attributed to the following reasons; 1.Extended design life of the road beyond 5 years, 2.Little or no maintenance of the road by the Department of Roads, 3.Overloading by private chrome ore haul trucks, 4.Block cracking of the cement stabilised natural gravel base 1, 5.Rutting and crocodile cracking of the crushed stone base 1.

Zimplats Initiated Maintenance Programme The road was handed over to the Department of Roads following in 2001. However realising the constraints that the department was having in terms of resources to maintain the road, Zimplats appointed Brian Colquhoun, Hugh O’Donnell and Partners (BCHOD) in 2008 to carry out 13mm reseal work on sections of the road from 14.8 to 24km, from 44.8 to 51.75km and from 66.6 to 69.6km. Further maintenance work was deemed to be necessary and BCHOD, in consultation with Aurecon, implemented a more comprehensive maintenance programme in 2008. Detailed pavement analysis was performed by Aurecon by means of the Falling Weight Deflectometer (FWD), test holes and detailed visual evaluation. Based on the findings of the detailed pavement analysis a recommendation was made to Zimplats for the rehabilitation of certain sections of the road in a phased sequence of work over a number of years. A project specific consortium (Ngezi 2010 Consortium), made up of three parties in; Bitcon, Tarcon (Contractors) and Sesanni Project Management, were awarded the Works Contract for “The Rehabilitation and Reseal of Road Sections between Ngezi and Selous” in August 2010. Possession of site for works was effective from 2 November 2010, with a contract duration of 9 months. The supervision of the Works Contract is performed jointly by BCHOD and Aurecon. The rehabilitation work consisted of the following; 1.Rehabilitation of approximately 10km of the existing road from 35 to 44.8km by reworking and stabilising the existing surface seal and 120mm thick crushed stone base 1 with addition of approximately 30mm of imported crushed stone aggregate, widening of the existing gravel

48

shoulders to 2.5 meters, widening of existing drainage structures and construction of a new 40mm asphalt surface. 2.Rehabilitation of approximately 7 km of existing road from 59 to 66.6km by widening the existing gravel shoulders to 2.5 meters, widening of existing drainage structures and construction of a new 40mm asphalt surfacing overlay. 3. Reseal of approximately 11 km of the existing road from 24 to 35km with 13mm pre coated aggregate. 4.Rejuvenation of approximately 7km of existing road from 52.55 to 59.0km and 69.6 to 70.4km by application of a fog spray. 5. Provision of new road signs. 6.

Installing subsoil drainage systems.

7.

Erecting new guardrails.

8.

Provision of road markings.

9.

Upgrading of three intersections.

Due to the continued rapid deterioration of the road since the initial design and recommendations performed in 2008, it was deemed necessary once on site, for additional rehabilitation of certain road sections from 51.75 to 52.55km (Muzvezve River section) and 59 to 66km. A further FWD and visual evaluation was performed by Aurecon in February 2011. Based on the findings of this analysis a recommendation was made to Zimplats for the reworking and stabilising of the existing surface seal and base 1, prior to asphalt surfacing overlay, on the above mentioned sections. The agreed scope of this work was to rework base of 40% of the southbound lane (unloaded lane) and 90% of

February 2012


the northbound lane (loaded lane). In addition a second base layer was constructed through the black cotton vlei from km 38.8 to 39.7km, in an attempt to reduce the negative action of expansive clay on the riding quality of the road over time. The project was reasonably trouble free. However problems and delays were inevitably been encountered. Delay in Environmental Management Authority approval, heavy rains in the 2010/2011 rainy season and the additional rehabilitation work required on certain sections mentioned above, resulted in an extension of time to 9 November 2011. Other minor delays encountered included denied access to borrow pits by the local communities, reduced/erratic supply of bitumen from South Africa and frequent plant breakdowns of the Contractor’s plant and equipment. Long stretches of black cotton soils had to be traversed on the sections which required widening and these posed special problems, particularly when such work was performed in the rainy season of 2010/2011.

Despite these delays and problems the overall standard of work is good and assuming ongoing, albeit erratic supply of bitumen, the Contractor is expected to substantially complete the work by 9 November 2011. Future Phased Rehabilitation Work As part of ongoing maintenance plan of this road, the following rehabilitation work is recommended to be implemented in a phased approach, from 2012 onwards. 1.Asphalt levelling layer and new 40mm asphalt surfacing overlay from 0 (Roundabout) to minus 2.5 (towards the SMC plant) 2.Reworking and stabilising the existing surface seal and base 1 with new 40mm asphalt surfacing from minus 2.5 to minus 5.0km (SMC Offloading Bay) 3.Widening the existing gravel shoulders to 2.5 meters, widening of existing drainage structures

and construction of a new 40mm asphalt surfacing overlay from 0 to 8km. 4.Reworking and stabilising the existing surface seal and base 1 with new 40mm asphalt surfacing from 8 to 14.8km. Work to also include for widening of the existing gravel shoulders to 2.5 meters and widening of existing drainage structures. 5.Reworking and stabilising the exiting seal and base 1 with new 40mm asphalt surfacing on the sections of fog spray rejuvenation performed in 2010 (52.55 to 59.0km and 69.6 to 70.4km). Work to also include for widening of the existing gravel shoulders to 2.5 meters and widening of existing drainage structures. 6.Reworking and stabilising the existing seal and base 1 with 40mm asphalt overlay on certain sections of the 13mm reseal performed in 2008 (14.8 to 24km, & from 44.8 to 51.75km & from 66.6 to 69.6km). Work to also include the widening of existing gravel shoulders to 2.5 meters and widening of existing drainage structures.

We shape a better world • Civil • Structural • Mechanical • Electrical • Environmental • Regional and urban planning • Project management

Astra Park

Zimbabwe

Arup Zimbabwe (Pvt) Ltd Consulting engineers, planners and environmentalists

Arup Zimbabwe (Pvt) Ltd are proud to have been the Consulting Engineers in the Ngezi Road Joint Venture which saw the successful completion of this project in record time.

Cnr Ridgeway North / Northend Rds

Borrowdale

Harare

t: +263-4-882250

f: +263-4-882698

February 2012

Email : peter.rix@arup.com

www.arup.com

49


ADVERTISERS’ INDEX

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Decra Roofing Systems...................................22

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Africa Thermal Insulations...............................41

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Buildcost Associates........................................45

H&M Flooring.....................................................1

Subcon Tanzania Ltd.......................................22

China Truck (T) Ltd........................................IBC

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Tanzania Signatures........................................23

China Jiangxi Corporates................................34

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Construction Review Online............................23

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Sentrim Contracts Ltd......................................31 Schindler Ltd....................................................32 Shnell Home....................................................27

Thermocool......................................................45 Time Projects...................................................37 TPCC.............................................................IFC

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CTT

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