Agent for preventing deterioration in the slump properties...

Details Agent for preventing deterioration in the slump properties... Agent for preventing deterioration in the slump properties...

C - Chemistry, Metallurgy

04

B

261/85

C04B 24/18 (2006.01)

Patent

CA 1125794

Abstract of the Invention An agent for preventing deterioration in the slump properties of mortar concrete, containing as a main ingredient a lignin sulfonate having a carboxyl group content of at least 0.2 mols and a sulfon group content of at least 0.1 mols per phenyl propane unit. Disclosed is also a method for improving the workability of mortar concrete, comprising adding said agent to the mortar concrete in an amount of 0.05 to 0.5% in relation to cement and at any suitable point of time before or after mixing.

337583

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