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化學(xué)配方數(shù)據(jù)庫(kù)
配方類型: MISCELLANEOUS
配方說(shuō)明: Mortar Improvement
配方組成:
配制方法: Calcium gluconate added as 0.2% by weight of a mortar composition extends normal set time by 3 hr., 20 minutes. The mortar used consists of cement, 300 gm.; sand, 900 gm.; water 160 ml. Calcium gluconate increases workability of a Portland cement concrete formulation without further addition of water. At the suggested use level, calcium gluconate gives a slump of 7.5 inches, compared with a slump of 2 inches for the control.

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