Repairs and patching to cement rendered walls can be undertaken.
Coatings and Protection for Concrete Structures
Concrete structures can degrade through chloride ingress (salt) or carbonation attack (CO2). If not treated this can lead to 'concrete cancer'.
Swart and Sons can coat concrete structures with Silane Siloxane penetrating sealants and carbonation coatings. In both instances the coatings prevent the entry of the contaminants into the concrete.
Structural cracks in load bearing structures can cause problems in the long term. Swart and Sons can inject low viscosity epoxy resins into the cracks in order to create a structural repair using inflatable balloons.
Concrete floor slabs can deflect (drop) where the subfill under the floor is, for example, washed away. We can pump cementitious grouts under pressure into the void under the slab in order to lift the slab back to its original level.
Concrete cancer occurs when steel reinforcement expands inside the concrete due to the entry of contaminants. Swart and Sons remove the affected concrete and treat the steel with cold galvanising zinc paint. Sowcuts are then placed into the concrete and a non-shrink high strength repair mortar is pumped or sprayed into position to create a structural repair.