Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled aggregate concrete and preparation method thereof
The invention discloses recycled aggregate concrete and a preparation method thereof. The recycled aggregate concrete comprises the following raw materials by weight percent: 15 to 20 percent of cement, 5 to 15 percent of water, 15 to 25 percent of third mixed additive, 38 to 63 percent of coarse aggregate, 0.3 to 1 percent of modified wood fiber-containing polyurethane modified epoxy resin flexibilizing emulsion, 0.1 to 0.5 percent of lauryl sodium sulfate, 0.1 to 0.5 percent of sodium gluconate, 0.1 to 0.5 percent of water glass, 0.5 to 1 percent of polyacrylate, and the sum of weight percent of the raw materials is 100 percent; and the coarse aggregate is the waste concrete renewable coarse aggregate or a mixture of waste concrete renewable coarse aggregate and natural coarse aggregate. The renewable aggregate concrete has good impact resistance, earthquake resistance and crack resistance, the pressure resisting strength of the recycled aggregate concrete in 28 days can reach 80 to 100 MPa, and the recycled aggregate concrete is applicable to a load-bearing structure.
Recycled aggregate concrete and preparation method thereof
The invention discloses recycled aggregate concrete and a preparation method thereof. The recycled aggregate concrete comprises the following raw materials by weight percent: 15 to 20 percent of cement, 5 to 15 percent of water, 15 to 25 percent of third mixed additive, 38 to 63 percent of coarse aggregate, 0.3 to 1 percent of modified wood fiber-containing polyurethane modified epoxy resin flexibilizing emulsion, 0.1 to 0.5 percent of lauryl sodium sulfate, 0.1 to 0.5 percent of sodium gluconate, 0.1 to 0.5 percent of water glass, 0.5 to 1 percent of polyacrylate, and the sum of weight percent of the raw materials is 100 percent; and the coarse aggregate is the waste concrete renewable coarse aggregate or a mixture of waste concrete renewable coarse aggregate and natural coarse aggregate. The renewable aggregate concrete has good impact resistance, earthquake resistance and crack resistance, the pressure resisting strength of the recycled aggregate concrete in 28 days can reach 80 to 100 MPa, and the recycled aggregate concrete is applicable to a load-bearing structure.
Recycled aggregate concrete and preparation method thereof
JIANG GUOPING (Autor:in) / XIAO SANXIA (Autor:in)
23.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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