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该文从低温变形能力及温度应力出发研究分析沥青混合料的低温性能。详细地研究了两种不同性质沥青所组成的四种沥青混合料的收缩系数、劲度模量、抗拉强度以及应力—应变特性,着重分析了它们的影响因素及其变化规律。通过理论及实验分析,提出了沥青混合料抗裂性能的评价方法。
Based on the low temperature deformation ability and temperature stress, this paper studies the low temperature performance of asphalt mixture. The shrinkage coefficient, stiffness modulus, tensile strength and stress-strain characteristics of four kinds of asphalt mixtures composed of two kinds of asphalt with different properties were studied in detail. The influencing factors and their changing rules were analyzed emphatically. Through theoretical and experimental analysis, the evaluation method of anti-cracking performance of asphalt mixture is proposed.