Cold Joint are formed when one pour of concrete ends and another begins. This transition is a formed crack and water can enter through the joint if not treated correctly. There are three ways to seal against water, but they all require access and timing to keep costs down during installation


Waterstop or Joint sealant

There are at least three types but they all function as a stopping point where water cannot enter due to a physical or chemical barrier being formed in the joint. Ranging from $2.00 to $10.00 per lnft, prior planning and coordination is needed to make this option feasible and effective. Consult with your concrete contractor to see if he can offer this product prior to pouring the next stage of concrete on your job.

The three types include