不同级配对OGFC混合料性能的影响

Influences of Different Grading on Mixture Performance of OGFC

不同级配决定了沥青混合料的结构组成,进而影响混合料的性能.以OGFC-13矿料级配作为研究对象,在规范级配范围内选择典型级配,对整个OGFC矿料级配走向进行了试验研究,并对不同级配走向对混合料技术指标和路用性能产生的影响进行了定量的分析,提出了满足OGFC混合料技术要求的合理级配范围.

Different gradings not only decide structure of asphalt mixtures , but also influence their performance. Taking the gradation limit of OGFC-13 as a study object, the grading trend of whole OGFC were studied and tested by selected typical gradations. The influences of difference grading trend were analyzed quantificationally by studying mixture techno-parameters and indexes of pavement performance . Then the reasonable gradation limit which may satisfy the requirement of OGFC mixture is put forward .