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利用直接剪切试验结合无侧限抗压试验和劈裂试验,对几种不同粒径沥青混合料的抗剪性能进行了研究,并且对比分析了它们的抗剪强度、抗剪参数与高温车辙动稳定度、马歇尔稳定度、空隙率等之间的关系。结果表明,利用直接剪切试验结合无侧限抗压试验和劈裂试验能够很好地评价沥青混合料的抗剪强度并获得沥青混合料的C和φ值,而沥青混合料的抗剪性能可以很好地反映其抗车辙性能。
Using the direct shear test combined with the unconfined compressive test and the splitting test, the shear resistance of several asphalt mixtures with different particle sizes has been studied, and their shear strength, shear resistance parameters and high temperature rutting Dynamic stability, Marshall stability, porosity and so on. The results show that the shear strength of asphalt mixture can be evaluated well by direct shear test combined with unconfined compressive test and splitting test, and the C and φ values of asphalt mixture can be obtained. However, the shear resistance of asphalt mixture Can well reflect its anti-rutting performance.