In case of leakage developed, the reinforcement gets corroded by oxidation & rust
formation, which ultimately generate cracks & disintegrates the concrete. Thus,
concrete loses its strength and resulting in failure of the structure. In most of
cases, water acts as carrier for harmful chemicals like salts of chlorides, sulphates,
alkalis, acids, etc. And all these may badly corrode concrete or reinforced steel.
Water may also come out from the concrete, plaster and evaporates from the surface,
leaving salts and alkalis back which reacts with paint, and forms patches. Waterproofing
is an integral part for construction of a building because it protects it and the
people who live in it, from the severe and unrelenting effects of weather and the
environment.
A scientific approach towards waterproofing is highly essential to avoid leakages and its harmful effects of premature deterioration of the building and other concrete infrastructure facilities.