BBA Agrément Certificate
A chemical treatment for waterproofing and protection of concrete. Supplied as a dry powder consisting of Portland cement, treated silica sand and various active proprietary chemicals. The active chemicals react with the moisture in the fresh concrete and the by-products of cement hydration causing a catalytic reaction that generates a non-soluble crystalline formation of dendritic fibres throughout the pores and capillary tracts of the concrete. Thus the concrete itself becomes sealed against penetration of water or liquid, protecting the concrete from the deterioration effect of harsh environmental conditions.