Journal of construction engineering, technology and management (vol4, issue3) by STM Journals Publication

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I take the privilege to present the hard copy compilation for the [Volume 4 Issue (3)] Journal of Construction Engineering, Technology & Management (JoCETM) .The intension of JoCETM is to create an atmosphere that stimulates creativeness, research and growth in the area of construction engineering, technology & management . The development and growth of the mankind is the consequence of brilliant Research done by eminent Scientists and Engineers in every field. JoCETM provides an outlet for Research findings and Reviews in areas of Construction Engineering, Technology and Management found to be relevant for National and International recent developments & research initiative. The aim and scope of the Journal is to provide an academic medium and an important reference for the advancement and dissemination of Research results that support high level learning, teaching and research in the domain of Construction Engineering. Finally, I express my sincere gratitude and thanks to our Editorial/ Reviewer board and Authors for their continued support and invaluable contributions and suggestions in the form of authoring writeups/ reviewing and providing constructive comments for the advancement of the journals. With regards to their due continuous support and co-operation, we have been able to publish quality Research/Review findings for our customers base. I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.

Dr. Archana Mehrotra Director STM Journals

Journal of Construction Engineering, Technology and Management

Contents

1. Assessment of Impacts of Motivation on Construction Worker's Productivity in Nigeria Aruleba Olalekan Bamidele, EKE Emmanuel Chidi

2. Method of Analysis for Chloride Distribution in Concrete from Torrent Data Md. Shafiqul Islam, Toshiharu Kishi

3. A Proposed Management System for Efficient Construction Site Productivity Ibrahim Haijal, Raji Al-Ani, Orabi Al-Rawi

4. Causes of Inefficient Site Cost Management Systems in Arabian Gulf Construction Companies Orabi Al-Rawi, Raji Al-Ani, Zaher A. Yousef

5. Smart Parking Systems: for Narrow Spaces A. Choudhary, S. Maheshwari, R.K. Pandit

Journal of Construction Engineering, Technology and Management ISSN: 2249-4723(online), ISSN: 2347-7253(print) Volume 4, Issue 3 www.stmjournals.com

Assessment of Impacts of Motivation on Construction Worker’s Productivity in Nigeria Aruleba Olalekan Bamidele1*, EKE Emmanuel Chidi2 1

Department of Building Technology, Rufus Giwa Polytechnic, Owo, Ondo State Department of Building Technology, the Federal Polytechnic, Ado Ekiti, Ekiti State

Abstract The research work assessed the impact of motivation on construction workers productivity in Nigeria. It also identified the various incentive schemes available to construction workers and assessed the effect of motivation on the productivity of the workers. The research work was carried out through review of related literatures and structured questionnaire on sectional basis in consonance with the objectives of the study. Data collected from questionnaire were analysed using, frequency and percentage as statistical tools. Findings shows that a motivated workforce can exert major influence on the success of the project, supply of information, tools and equipment materials as a result of; detailed planning for the needs of every crew are crucial factor in the smooth performance of worker. It also indicates that organizations’ resources are well utilized without wastage, high commitment of workers to work and increased level of productivities are some of the benefits of motivation. Thus, the research recommends that construction workers must be adequately motivated to ensure huge success on project, information, equipment, and tools must be provided for construction. Construction workers must be encouraged to go for vocational training, open communication lines, provide opportunities for recognition and providing good working conditions will be of good practices to motivate construction workers in Nigeria.

Keywords: Construction, Motivation, Productivity, Incentive, Workers

Journal of Construction Engineering, Technology and Management ISSN: 2249-4723 (online), ISSN: 2347-7253 (print) Volume 4, Issue 3 www.stmjournals.com

Method of Analysis for Chloride Distribution in Concrete from Torrent Data Md. Shafiqul Islam1*, Toshiharu Kishi2 1

Department of Civil Engineering, Rajshahi University of Engineering & Technology, Bangladesh 2 Institute of Industrial Science, The University of Tokyo, Japan

Abstract Design w/c ratio becomes less important than achieved cover performance in the case of existing structure. Therefore, inspection data of chloride profile from some real structures do not always obey the rule of Fick’s law, suggesting the influence of a new parameter. In this study, chloride ion profiles and behavior of penetrating water for normal, fly ash and slag concrete with w/c ratio as 40, 55, and 70%, respectively, cast in laboratory, were examined. Furthermore, Fick’s law is modified based on liquid water front and its variation. It is also shown that the torrent permeability can fix suitable analysis method.

Keywords: Liquid water front, standard deviation, torrent permeability, modified Fick’s law

Journal of Construction Engineering, Technology and Management ISSN: 2249-4723 (online), ISSN: 2347-7253 (print) Volume 4, Issue 3 www.stmjournals.com

A Proposed Management System for Efficient Construction Site Productivity Ibrahim Haijal, Raji Al-Ani*, Orabi Al-Rawi Civil Engineering Department, Isra University, Jordan Abstract The concept of on-site construction productivity has long been a major concern of researchers and construction companies. The factors that influence construction site productivity vary according to the project environment, project type, staff, management, and other related factors and/or variables. In this study, the main factors that are believed influencing construction site productivity are reviewed as environmental, manpower, management, and site. A field survey has evaluated site productivity of 150 construction projects, including 132 civil and 18 building projects to identify the actual productivity and the factors behind poor productivity. The survey results showed that the most influential manpower factors are the difficulty of finding qualified site supervisors, changing supervisors, changing workers and the lack of skilled workers. The most influential management factors were a lack of motivation and financial incentives, scheduled overtime, stop-work orders as a result of site accidents, rejection of work by the construction supervisory committees, stoppages of work because of disputes with owners/consultants, and poor subcontractor coordination. The study proposes a site management system includes a set of on-site procedures, to be implemented by project managers for improve efficiency of site productivity. Application of the suggested system is expected to assist site management in improving site productivity.

Keywords: construction productivity, site management system, on-site productivity

Journal of Construction Engineering, Technology and Management ISSN: 2249-4723 (online), ISSN: 2347-7253 (print) Volume 4, Issue 3 www.stmjournals.com

Causes of Inefficient Site Cost Management Systems in Arabian Gulf Construction Companies Orabi Al-Rawi1, Raji Al-Ani2*, Zaher A. Yousef3 1

Civil Engineering Dept., Isra University, Hyderabad, Sindh, Pakistan 2 Civil Engineering Department, Isra University, Jordan 3 Department of Construction Engineering, Senior Engineer in Joannou & Paraskevaides (J&P) Overseas Contracting Company, Saudi Arabia

Abstract The cost of construction projects has a long history of exceeding the planned cost. At the project level, this is termed as “Project Cost over Run”. This research reviews the main causes of the inefficiency in the existed cost management systems applied by the Arabian Gulf Contracting Companies at the construction stage. The requirements of having an efficient cost management system (recording, monitoring and controlling functions) have been collected from previous researches to be used in a field survey on the construction companies in the Arabian Gulf to highlight the main causes behind inefficient management functions (monitoring and controlling of site costs in the construction projects in the region. This research is the first part of a M.Sc. research work which has been taken place on Saudi Arabian and Bahraini contracting companies to identify the efficiency of existed cost monitoring and control methods applied by these companies in their projects. The highlighted causes will assist project management of the construction companies in the Arabian Gulf region, as well as the other contracting companies, in evaluating and improving their monitoring and controlling their site cost at the construction stage.

Keywords: project management, construction management, cost management, site management

Journal of Construction Engineering, Technology and Management ISSN: 2249-4723 (online), ISSN: 2347-7253 (print) Volume 4, Issue 3 www.stmjournals.com

Smart Parking Systems: for Narrow Spaces A. Choudhary1*, S. Maheshwari2, R.K. Pandit1 1

Department of Architecture, MITS, Gwalior, Madhya Pradesh, India Department of Mechanical Engineering, MITS, Gwalior, Madhya Pradesh, India

Abstract With the beginning of the era of “Narrow Spaces,” everyone with wheels is facing the problem of parking, may it be for a short duration, while shopping in markets, or even when it comes to parking in residences, etc. The solution to this can be attained, designed and described to user if and only if it is economic, user friendly and safer. To attain the solution we first must observe and understand the current scenario of parking schemes, layouts and a-z of parking, then later to compare it with various standards. Understanding each and every problem and public, social, psychological issues is also very important when it comes to Indian Context. With the elimination of ramps, driving lanes, pedestrians and the reduction in ceiling heights, the SPS requires substantially less structural material than the multi-story parking garage. SPS can be constructed utilizing a steel framework (some use thin concrete slabs) rather than the monolithic concrete design of the multi-story parking garage. These factors contribute to an overall volume reduction and further space savings for the SPS.

Keywords: narrow spaces, parking systems, smart parking