ADDITIVES FOR ROLLER COMPACTED CONCRETE PAVEMENT

摘要

PURPOSE:To suppress heat generation by hydration reaction and to improve strength, containing a hydrolyzable tannin compound. CONSTITUTION:This additive for rolled concrete contains a hydrolyzable tannin compound. The hydrolyzable tannin compound used in the additive is a compound wherein a phenolic carboxylic acid is linked to a saccharide by ester bond. This compound is converted into the acid or the saccharide by hydrolysis, the substance is liable to be hydrolyzed by acidity or alkalinity and the decomposed product has extremely high hydration suppressing action on cement and can suppress heat generation of hydration. The additive is usable together with another admixture.