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沥青混合料用矿粉性能指标研究

, PP. 6-11

Keywords: 道路工程,沥青混合料,试验研究,性能指标,矿粉

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Abstract:

?首先测量了5种不同类型矿粉的粒径、比表面积、亚甲蓝值、干捣空隙率和沉淀空隙率,同时进行了德国矿粉试验和液塑限试验,然后测试了各矿粉配制胶浆的使用性能,最后进行了矿粉指标与胶浆性能的相关性分析。试验结果表明:7种测试方法对矿粉性质有不同的适用性;矿粉类型对胶浆性能有重要影响,即有必要对矿粉类型进行筛选;考虑到测试方法的可推广性,推荐以干捣试验和德国矿粉试验作为矿粉高温性能和施工性能的评价方法,以亚甲蓝试验作为矿粉低温性能的评价方法。

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