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METHOD OF SURFACE TREATING AGGREGATE FOR PAVING AND PAVING METHOD USING SURFACE TREATED AGGREGATE THEREBY
METHOD OF SURFACE TREATING AGGREGATE FOR PAVING AND PAVING METHOD USING SURFACE TREATED AGGREGATE THEREBY
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机译:用于摊铺的表面处理骨料的方法以及使用摊铺的表面骨料的摊铺方法
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摘要
PROBLEM TO BE SOLVED: To provide a method of enhancing the adhesion strength between a moisture-curable polyurethane resin and aggregate to inhibit falling off of the aggregate after paving in paving by using the resin as the binder. ;SOLUTION: In paving by using aggregate whose major component is silicon dioxide to bond it with a moisture-curable urethane resin for paving, before the step of kneading the aggregate and the resin, the aggregate is subjected to surface treatment comprising a step of mixing the aggregate with a silane coupling agent to effect heat treatment and a step of mixing the heat treated aggregate with a polyol and drying it. Use of the aggregate after this treatment in paving extremely enhances the adhesion strength to the urethane resin.;COPYRIGHT: (C)2001,JPO
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