沥青混合料剪切性能影响因素研究

摘要

In order to study the influence of different factors on the shearing properties of asphalt mixture effect,based on the single penetration test and unconfined compression test,respectively on the asphalt type,aggregate gradation,asphalt content on asphalt mixture shear properties. The results show that:the type of asphalt will directly affect the shearing properties of asphalt mixture have,asphalt mixture of different asphalt types,which angle of internal friction ,cohesion C and shear strength of the three indicators of a larger difference,aggregate gradation has a great influence on shear properties of asphalt mixture,especially a great impact on cohesion C and shear strength of asphalt mixture.%采用单轴贯入试验和无侧限抗压试验，分别对沥青类型、级配类型、油石比对沥青混合料剪切性能的影响进行研究，结果表明：沥青的类型会直接影响到混合材料所具备的剪切性能，不同沥青类型的混合料的内摩擦角、粘聚力C以及剪切强度三个指标方面相差较大；级配类型对沥青混合料剪切性能具有很大的影响，特别是对沥青混合料的粘聚力C和剪切强度影响很大。