Processed silica as a natural pozzolan for use as a cementitious

Details Processed silica as a natural pozzolan for use as a cementitious Processed silica as a natural pozzolan for use as a cementitious

1995-05-09

1996-09-10

Green, Anthony

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

4233271, 423335, 106737, C01B 3318, C04B 2206, C04B 1404

Patent

active

055543529

ABSTRACT:
A pozzolan for use in concrete products which is a silica by-product in the acid treatment of silica-containing ore is described. The pozzolan contains over 75% by weight amorphous silica and provides an increase in the early strength of concrete in comparison to traditional pozzolans as well as minimizing alkali-silica reactions due to the presence of less impurities.

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