Construction World April 2023

free, two-component anchoring adhesive, was used to anchor the concrete balustrades on the bridges. Sika® Antisol® E was used as a concrete curing agent - it is a ready to use spray applied liquid wax emulsion that prevents water loss from the surface of freshly placed concrete. It forms a thin film barrier on the concrete without affecting the normal setting action. The rehabilitation of the MR44 Omaruru River Bridge and Swakopmund Road over Rail Bridge was named the SANRAL SAICE 2022 National Award Winner for: Most outstanding Civil Engineering Project – International Category; and were also featured in the SAICE Civil Engineering Magazine (Vol 30) March 2022. “We received exceptional service from Andre and his team at Sika Namibia and managed to successfully complete a flagship project with outstanding results – never a bridge too far for Sika,” says Eugene Gouws, Project Manager at Actual Impact Group. 

selected high strength aggregates. After mixing, it forms a trowel-able mortar with good adhesion to cementitious substrates. About 480 m² of bridge deck and approach slabs at the Swakopmund site, had SikaBit® Pro P40 PE applied. It is an APP modified, bituminous, torch-applied, waterproofing membrane. SikaBit® PRO P-40-0 PE is reinforced with a dimensionally stable non-woven polyester inlay. The underside has a thin polyethylene burn-off film for effortless application. It can be applied to wood, metal and concrete substrates including over existing bitumen roofing membranes. Sikaflex®-11 FC+, a 1-part, multipurpose elastic adhesive and joint sealant with very good application properties, and which bonds and seals most construction material substrates, was used on the bridge parapet joints at both sites. On the general concrete work, Sika AnchorFix®-2+; a solvent

31 CONSTRUCTION WORLD APRIL 2023