Addition rate of Silica Cement Admixture

Structure Type & Amount

Sub structure concrete (overground)

3-5% of amount of cement

Sub structure concrete (underground)

5-7% of amount of cement

With cement Mortar

10-20% of amount cement

Pre fabricating products

3.5-10% of amount of cement

Hard concrete-no slump

7-10% of amount of cement

Marine structure (under water)

10-20% of amount of cement