Waterproofing is considered to be an important part of modern construction. The word Waterproofing’ may be a misnomer as it is virtually impossible to provide absolute exclusion of water or moisture from a masonry/concrete structure. The process is basically an attempt to exclude the maximum amount of water or moisture from a structure. Waterproofing is essentially required where there is a hydrostatic head of water to be resisted or where unusually dry conditions must be maintained. On the other hand, damp proofing may be defined as the treatment to retard the passage of water with the application of suitable treatment methodology coating or integral waterproofing compounds.

The basic causes of defects in buildings are due to usage of excess water (high w/c/ ratio), by excess water we mean that, adding more water than required for hydration. This leads to the formation of capillaries, pores, gel pores through which water can penetrate into the structure thus endangering the durability of the structure.