Grout Aggregate

[STRCIVIL]

Typical grout manufacture requires use of pea gravel for application deeper than 3". Is it really required or recommended? why?

 

[Focht3]

Strictly speaking, you could use a sand/cement/water mix. But the gravel acts as a filler, and helps to reduce shrinkage.



Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora. See faq158-922 for recommendations regarding the question, "How Do You Evaluate Fill Settlement Beneath Structures?"