Tuesday 25 October 2016

Waterproofing of building

   We are going to discuss about waterproofing systems. we require waterproofing at many places on a buildings, some of them are

Terrace
Toilet sunken portion
Basement
Septic tank
Overhead tank
Exterior walls
Septic tank
swimming pool etc....

Terrace 

Toilet sunken portion



Basement waterproofing
Septic tank






      As we know that in India, there is high temperature variation. It varies from 10 degrees in winters to 50 degrees celsius in summer.We also have lots of rains in rainy season This type of high variation creates lots of adverse effect on structure of a building. there will expansion of concrete at high temperature and contraction at low. This expansion and contraction may create cracks. These cracks leads to water ingress, leakage and seepage.
        Sometime honeycombs and voids exists inside the concrete structure which is also responsible for water percolation. there are several reasons because of them it happens like low work ability of concrete mix, absence of vibration, high water cement ratio etc.
       Most common water proofing system for concrete slab we have right now is brush applied coating system (either one component or 2 components product)