Pozzolana Cement:
The pozzolana cement is a volcanic powder. It resembles surkhi, which is prepared by burning bricks made from ordinary soils. It can also be processed from shales and certain types of clays. The pozzolana material should be among 10% to 30%.
The given below are the uses of pozzolana cement:
(a) It is used within sewage works and for laying concrete under water.
(b) It is used to marine structures.