AECOM siphokuhle.dlamini@aecom.com AFI Consult banie@afri-infra.com lunga@alakeconsulting.com Alake Consulting Engineers ALULA (Pty) Ltd info@alulawater.co.za AQUADAM (Pty) Ltd sales@aquadam.co.za ARRB Systems info@arrbsystemssa.com Asla Construction (Pty) Ltd johanv@asla.co.za Aveng Manufacturing Infraset werner.booyens@infraset.com Averda claude.marais@averda.com Bigen Africa Group Holdings otto.scharfetter@bigenafrica.com BMK Group brian@bmkgroup.co.za Bosch Munitech info@boschmunitech.co.za mail@boschprojects.co.za Bosch Projects (Pty) Ltd BVI Consulting Engineers marketing@bviho.co.za Civilconsult Consulting Engineers mail@civilconsult.co.za Corrosion Institute of Southern Africa secretary@corrosioninstitute.org.za Development Bank of SA divb@dbsa.org.za Dlamindlovu Consulting Engineers & Project Managers info@dlami-ndlovu.co.za DPI Plastics Farhana@dpiplastics.co.za EFG Engineers eric@efgeng.co.za Elster Kent Metering Mark.Shamley@Honeywell.com ERWAT mail@erwat.co.za GIBB marketing@gibb.co.za GIGSA secretary@gigsa.org GLS Consulting nicky@gls.co.za Gorman Rupp Cordeiro@gormanrupp.co.za Gudunkomo Investments & Consulting info@gudunkomo.co.za Hatch Africa (Pty) Ltd info@hatch.co.za Herrenknecht schiewe.helene@herrenknecht.de Huber Technology cs@hubersa.com info@edams.co.za Hydro-comp Enterprises I@Consulting info@iaconsulting.co.za Infrachamps Consulting info@infrachamps.co.za INGEROP mravjee@ingerop.co.za Integrity Environment info@integrityafrica.co.za IQHINA Consulting Engineers & Project Managers info@iqhina.co.za iX engineers (Pty) Ltd hans.k@ixengineers.co.za JBFE Consulting (Pty) Ltd issie@jbfe.co.za JG Afrika DennyC@jgafrika.com KABE Consulting Engineers info@kabe.co.za Kago Consulting Engineers kagocon@kago.co.za Kantey & Templer (K&T) Consulting Engineers ccherry@ctokamteys.co.za Kitso Botlhale Consulting Engineers info@kitsobce.co.za general@lwt.co.za Lektratek Water Lithon Project Consultants (Pty) Ltd info@lithon.com Makhaotse Narasimulu & Associates mmakhaotse@mna-sa.co.za Malani Padayachee & Associates (Pty) Ltd admin@mpa.co.za Maragela Consulting Engineers admin@maragelaconsulting.co.za Mariswe (Pty) Ltd neshniec@mariswe.com Martin & East gbyron@martin-east.co.za M & C Consulting Engineers (Pty) Ltd info@mcconsulting.co.za Mhiduve adminpotch@mhiduve.co.za Mogoba Maphuthi & Associates (Pty) Ltd admin@mmaholdings.co.za info@wabatho.co.za Moedi Wa Batho Consulting Engineers (Pty) Ltd Much Asphalt bennie.greyling@muchasphalt.com Mvubu Consulting & Project Managers miranda@mvubu.net NAKO ILISO lyn.adams@nakogroup.com Nyeleti Consulting merasmus@nyeleti.co.za Odour Engineering Systems mathewc@oes.co.za amarunga@prociv.co.za Prociv Consulting & Projects Management Rainbow Reservoirs quin@rainbowres.com info@ribicon.co.za Ribicon Consulting Group (Pty) Ltd francisg@rhdv.com Royal HaskoningDHV info@sabita.co.za SABITA mberry@safripol.com SAFRIPOL info@salga.org.za SALGA SAPPMA admin@sappma.co.za / willem@sappma.co.za SARF administrator@sarf.org.za.co.za SBS Water Systems mava@sbstanks.co.za Sembcorp Siza Water info-sizawater@sembcorp.com Sigodi Marah Martin Management Support lansanam@sigodimarah.co.za garths@sivest.co.za SiVEST SA Sizabantu Piping Systems (Pty) Ltd gregl@sizabantupipingsystems.com SKYV Consulting Engineers (Pty) Ltd kamesh@skyv.co.za capetown@smec.com SMEC gen@sobek.co.za Sobek Engineering director@sasst.org.za Southern African Society for Trenchless Technology spc@vinci-construction.com Southern Pipeline Contractors (Pty) Ltd jomar@srk.co.za SRK Consulting Star Of Life Emergency Trading CC admin@staroflife.co.za Syntell julia@syntell.co.za TECROVEER (Pty) Ltd info@tecroveer.co.za TPA Consulting roger@tpa.co.za Ulozolo Engineers CC admin@ulozolo.co.za V3 Consulting Engineers (Pty) Ltd info@v3consulting.co.za Vetasi south-africa@vetasi.com VIP Consulting Engineers esme@vipconsulting.co.za VNA info@vnac.co.za VUKA Africa Consulting Engineers info@vukaafrica.co.za Water Institute of Southern Africa wisa@wisa.org.za Wam Technology CC support@wamsys.co.za Water Solutions Southern Africa ecoetzer@wssa.co.za Wilo South Africa marketingsa@wilo.co.za WRNA washy@wrnyabeze.com WRP ronniem@wrp.co.za WSP Group Africa ansia.meyer@wsp.com Zutari Rashree.Maharaj@Zutari.com
CEMENT & CONCRETE
M2 restoration A night-time view of a section of the M2
T
aking an increasingly heavy toll over the years, sections of the M2 recently required emergency repairs, partly due to a lack of maintenance and rising traffic volumes. These works were carried out by main contractor Stefanutti Stocks between February and October 2019 on behalf of the Johannesburg Roads Agency. Bordering the Johannesburg CBD, the M2 is an important conduit into and out of the city, as well as a vital link between the N1 and N3 freeways. Four of Sika’s products were used on the span of the road. Sikadur-32 Normal, a bonding agent, was used to bond the new concrete to the old. In turn, Sika MonoTop-412 NFG – the latest addition to the Sika mortar range – was used for road repairs. The product is suitable for restoration work, structural strengthening and for preserving passivity. Sika Ferrogard-903 Plus was applied to the concrete surface as a corrosion inhibitor. As a product that is based on organic compounds, it both delays the start and reduces the rate of corrosion. Finally, SikaTop Seal-107 ZA – a waterproofing, chloride and carbonation protective coating – was used for coating the barriers, finishing off a well-executed renovation.
Refurbishment of bridge sections forming part of the M2 bordering Johannesburg’s CBD
IMIESA September 2020
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