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《Concrete》 2005-09
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Experiment on a type of polyurethane concrete possessing early strength and speedily solidification

WEI Zhuo-bin~(1,2),WANG Tie-cheng~2,GAO Yi~(1,2) (1.Tianjin School District,Navy Engineering University,Tanggu 300450,Tianjin,China; 2.School of Architecture and Engineering,Tianjin University,Nankai 300072,Tianjin,China)  
By using orthogonal test method,the selective study on the mixture proportion about a type of polyurethane concrete was processed.The result shows that the optimum mixture proportion is that polyurethane adopts PU-1,curing agent adopts JB-2(the concentration is 40 percent),sand and gravel filled with cement are used for aggregate,polyurethane-curing agent ratio is 1 to 1,catalyst-polyurethaane ratio is 1 to 80 and binder-aggregate ratio is 1 to 8.5.This type of polyurethane concrete could provide high strength in short curing age,therefore it is appropriate material for rapid repair.
【CateGory Index】: TU528.042
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