布敦岩矿料的沥青混合料路用性能

以70号A级道路石油沥青为依据，实施了6种不同布顿岩矿料掺量的6种AC20矿料级配的布顿岩沥青混合料路用性能研究。结果表明，布敦岩沥青原材料中的岩矿料对矿料级配组成与路用性能均影响较大；合理选择布敦岩沥青油石比可显著提高综合路用性能，较优油石比为0.7%～1.3%时的路用性能接近于SBS 改性沥青混合料，但对提高水稳定性能力有限；布敦岩沥青最佳掺量为23.7%，与布敦岩沥青原材料自身的油石比几乎相同。

Research on BRA Asphalt Mixture Pavement Performance Based on Containing BRA Rock

AH-70 road asphalt as the basis, Buton rock asphalt mixture pavement performance was studied by using six different Buton rock asphalt adding quality and six different AC20 aggregate gradation. The results show that Buton rock asphalt raw materials including the rock mineral significantly affects aggregate gradation and the pavement performance; reasonable choice OAC can significantly improve the road performance, and the road performance in the condition of 0.7%~1.3% optimum OAC is close to that of the SBS modified asphalt mixture, but Buton rock asphalt improving the water stability is limited; Buton rock asphalt optimum dosage is 23.7%, and Buton rock asphalt OAC and OAC of Buton rock asphalt raw material is almost the same.