weber.rep R4 duo
Repair mortar & resurfacing mortar
weber.rep R4 duo is a polymer-modified, ready-mixed dry mortar of class R4 according to EN 1504-3. It fulfils the requirements of the concrete strength class M2 according to DAfStb-Rili and is suitable for use as PCC II mortar according to the German specifications TL BE-PCC of ZTV ING (Additional Technical Terms of Contract and Guidelines for Civil Engineering Works). With German approval. Together with the concrete surface protection systems weber.tec 771 or weber.tec 772, it also fulfills the requirements according to DafStb-Rili (system OS-C resp. OS-D II) and according to DIN V 18026 (systems OS-4 resp. OS-5).
Cement, mineral fillers, polymer resins, regulating additives
Fields of application
As combination product for use as reprofiling mortar or concrete replacement mortar in thick applications (up to 50 mm and more) and as fairing coat mortar in thin applications (from 2 to 5 mm). As structural repair mortar for the repair/reprofiling of worn-out reinforced concrete structures (vertical and overhead without formwork) and also unreinforced concrete surfaces. As resurfacing mortar for levelling and patching all surface imperfections, like honeycombs, small breakouts, voids, broken edges etc. on new and old concrete substrates, such as filigree concrete walls, ceiling elements etc. in structural engineering, and also as fairing coat on repaired concrete surfaces. Also for provision of inclined slopes up to 50 mm thickness, e.g. cantilever slabs of balconies. Furthermore, for all repair works on concrete walls and floors, as well as for re-profiling e.g. stair steps. For indoors and outdoors.
- very good workability
- no drop-off on vertical and overhead surfaces
- very high mechanical strengths
- high resistance to frost and de-icing salts
- low shrinkage and low residual stress
- very fine-grained - maximum grain size 0.5 mm
- open to diffusion of water vapour
- for surfaces with pedestrian and vehicular traffic
- approved by the German Federal Road Authority