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沥青砂浆是由沥青和细集料共同组成的复合材料,其工程性质相当复杂。沥青砂浆中细集料的组成和级配对沥青混合料的低温性能有着重要影响。笔者通过对不同细集料组成及级配的沥青砂浆小梁进行弯曲试验分析,研究沥青砂浆的低温性能,并采用灰熵法分析了各档集料和沥青含量对低温性能影响的主次关系。
Asphalt mortar is composed of asphalt and fine aggregate composite material, its engineering properties are quite complex. The composition and grading of fine aggregate in asphalt mortar has an important influence on the low temperature performance of asphalt mixture. The author studied the low temperature performance of asphalt mortar by analyzing the bending test of asphalt mortar with different fine aggregate composition and grading, and analyzed the primary and secondary relationship of the effect of aggregate and asphalt content of each file on low temperature performance by gray entropy method .