A new concrete repair system, comprising two a.b.e. Construction Chemicals products, is providing excellent results and is increasingly being specified in various parts of South Africa. a.b.e., with head office in Boksburg, is part of the Saint-Gobain Group.
In terms of the new concrete repair system, a.b.e.’s durarep EC, a three-component epoxy cement mortar with selected fine aggregates, is overcoated with abecote SF 217, a two-component solvent-free Novolac epoxy resin.
The combination of durarep EC and abecote SF 217 was selected for the repair and protection of the return activated sludge (RAS) pump station of the Sandfontein sewer works in Cape Town, completed by main contractor, Hiload Inyanga Construction. A total of 120 kits of 21kg durarep EC were needed for this project.
Brett Papayanni, a.b.e. General Construction Sales Manager in Cape Town, who handled the two Western Cape projects on behalf of a.b.e., says trowel-applied durarep EC provides exceptional non-slump consistency for the smoothing of irregular surfaces and blow holes on concrete and masonry.
“Furthermore, the solvent-free product is impervious to liquids and can be applied to damp surfaces. It quickly develops placeable consistency and so provides fast turn-around time. With excellent adhesion, durarep EC remains cohesive and does not sag,” Papayanni explains.
The new a.b.e. concrete repair and protection system calls for durarep EC to be overcoated with abecote SF 217, a clear resin system used for sealing, laminating, screening and grouting applications. abecote SF 217 offers high chemical resistance not possible with standard epoxies and can be used as a laminating resin, for high chemical-resistance screeding, chemical tile grouting, and sealing porous elements such as concrete and wood.
“a.b.e. concrete repair products have for decades been used to repair and effectively maintain important South African building and infrastructural facilities. The new durarep EC and abecote SF 217 system illustrates a.b.e.’s commitment to develop and introduce the widest possible choice of solutions for diverse repair and maintenance projects,” Papayanni adds.