Grinding aids for hydraulic cement

B - Operations – Transporting – 02 – C

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241/136, 261/50

B02C 23/00 (2006.01) B02C 23/06 (2006.01) C04B 24/04 (2006.01)

Patent

CA 1253523

GRINDING AIDS FOR HYDRAULIC CEMENT Abstract Hydraulic cements such as Portland cement are interground with diesters formed by reacting a polyol (e.g. alkylene gylcol) with a monobasic carboxylic acid (e.g. acetic acid) to enhance the efficiency of the grinding operation.

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