布敦岩沥青配合比设计及性能研究

摘要

The design of mix proportion of modified asphalt mixture of AC-16 Buton rock asphalt with three kinds of different mixing amount of asphalt like 2.0%, 2.5%, and 3.0% is finished.The performance of modified asphalt mixture of Buton rock asphalt with different mixing amount of asphalt and that of matrix asphalt mixture are compared and analyzed.The results show that: Buton rock asphalt can effectively improve the high temperature performance of asphalt mixture, but its low temperature crack resistance will gradually decrease with the increase of mixing amount of rock asphalt, and the water-resistant damage performance of asphalt mixture will increase first and then decrease with the increase of mixing amount of rock asphalt.%完成了2.0%、2.5%、3.0%三种不同岩沥青掺量AC-16布敦岩沥青改性沥青混合料配合比设计.对比分析了不同岩沥青掺量布敦岩沥青改性沥青混合料与基质沥青混合料的性能,结果表明:布敦岩沥青能有效提高沥青混合料的高温性能,但是其低温抗裂性能随着岩沥青掺量增加逐渐减小,沥青混合料抗水损害性能随着岩沥青掺量的增加呈现先增加后减小的趋势.