| 简介 |
PROBLEM TO BE SOLVED : To provide a polymer cement grouting material composition which, unlike a conventional polymer grouting material being a premix of a re-emulsion powder resin and a liquid shrinkage reducing agent, has fluidity equal to that at the initial stage of premix even after being stored and to provide a grouting material using the grouting material composition. SOLUTION : The polymer cement grouting material composition is a polymer cement grouting composition comprising portland cement, an expanding agent, an aggregate, a re-emulsion powder resin, and a shrinkage-reducing agent, wherein the shrinkage-reducing agent is supported on calcium silicate hydrate of a BET specific surface area of 30 m2/g or larger. COPYRIGHT : (C)2008, JPO&INPIT |
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