Treated lignosulfonates as additives for cementitous systems

Details Treated lignosulfonates as additives for cementitous systems Treated lignosulfonates as additives for cementitous systems

C - Chemistry, Metallurgy

04

B

C04B 24/18 (2006.01) C08H 7/00 (2011.01)

Patent

CA 2454129

A process for preparing a lignosulfonate additive for use as a dispersant in cement or concrete compositions comprises treating a lignosulfonate solution with salts of trivalent metals. Preferably, such salts comprise nitrates or sulphates of aluminum, iron, copper, or manganese.

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