All About Construction

What is the difference between epoxy grout, cement grout and cement mortar? * Epoxy grout consists of epoxy resin, epoxy hardener and sand/aggregates. In fact, there are  various types of resin used in construction industry like epoxy, polyester, polyurethane etc. Though epoxy grout appears to imply the presence of cement material by its name, it does  not contain any cement at all. On the other hand, epoxy hardener serves to initiate the  hardening process of epoxy grout. It is commonly used for repairing hairline cracks and  cavities in concrete structures and can be adopted as primer or bonding agent. * Cement grout is formed by mixing cement powder with water in which the ratio of cement  of water is more or less similar to that of concrete. Setting and hardening are the important  processes which affect the performance of cement grout. Moreover, the presence of  excessive voids would also affect the strength, stiffness and permeability ...

Can grout replace concrete in normal structure? The mixture of cement and water alone cannot replace concrete (Longman Scientific and Technical (1987)) because: (i) Shrinkage of grout is several times that of concrete with the same mass. (ii) The effect of creep of grout is far more than that of concrete. (iii) Heat of hydration of cement with water is more than normal concrete and this leads to  the problem of severe cracking .