| 摘要 |
PROBLEM TO BE SOLVED: To provide a quick hardening additive for mortar concrete which is an additive for quickly hardening the mortar concrete and ensures a storage stability for a long period of time. SOLUTION: The quick hardening additive for mortar concrete comprises (A) at least one kind of calcium aluminates, (B) an alkali metal salt, and (C) a water-soluble epoxy resin having two or more epoxy groups in one molecule or a (meth)acrylic acid additive of the epoxy resin. COPYRIGHT: (C)2008,JPO&INPIT
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