Modified calcium oxide cement concrete expansion agent and preparation method thereof

Modified calcium oxide cement concrete expansion agent and preparation method thereof

  • CN 104,710,121 A
  • Filed: 02/05/2015
  • Published: 06/17/2015
  • Est. Priority Date: 02/05/2015
  • Status: Active Grant
First Claim
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1. a modified oxidized calcium class cement concrete swelling agent, is characterized in that, described modified oxidized calcium class cement concrete swelling agent is made up of acrylic resin and calcium oxide expansive clinker, and acrylic resin is wrapped in the surface of calcium oxide expansive clinker;

  • Wherein acrylic resin quality accounts for the 0.01%-10% of described modified oxidized calcium class cement concrete swelling agent total mass;

    Described modified oxidized calcium cement concrete and specific surface area be 100-600 m 2/ kg;

    Described acrylic resin comprises (methyl) acrylic ester monomer or/and the mixture of one or more polymkeric substance of other olefinic type monomers copolymerization, and its number-average molecular weight is 1-500kg/mol;

    Described (methyl) acrylic ester monomer structural formula is CH 2=CH-COO-R 1, or CH 2=C (CH 3)-COO-R 1, wherein R 1for the alkyl of C1-C12;

    Other olefinic type monomers described is vinylbenzene, vinylformic acid, methacrylic acid, butene dioic acid, the mixture of more than one arbitrary proportions in vinyl cyanide or vinyl acetate between to for plastic.

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