Grout

Whilst construction grout is typically used to underpin precast or steel elements there are many different types of grout for various applications. In general terms, grouts are separated into classes, Class A Grout, or Class C Grout.
Class A grout is a shrinkage compensated grout and is generally used for underpinning static elements such as precast panels etc.
Class C grout is a dual shrinkage compensated grout and is generally used for underpinning dynamic loads such as bridges, machinery, etc.