| 摘要 |
PROBLEM TO BE SOLVED: To provide a burying type form made of polymer cement mortar of excellent efficiency of production, capable of being released with material age of one day same as a usual concrete manufacture. SOLUTION: This burying type form made of polymer cement mortar is a water-based resin dispersing element obtained by emulsification and polymerization in two stages or more of a monomer compound containing one kind of monomer or more selected from among ethylene unsaturated carboxylic acid monomer and aromatic vinyl monomer and/or (meta)acrylic acid ester monomer, and composed of the aggregate made of only the water-based resin dispersing element having a mass ratio (a-final)/(a-1) of 4-8 of the ethylene unsaturated carboxylic acid monomer (a-1) used at the first stage to the ethylene unsaturated carboxylic acid monomer (a-final) used at the final stage, early-strength Portland cement, and fine aggregate, high-performance water reducing agent, and defoaming agent. COPYRIGHT: (C)2008,JPO&INPIT
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