期刊论文

中文

交通科学与工程

1674-599X

2016

32

2

1-6

10.16544/j.cnki.cn43-1494/u.2016.02.001

国家自然科学基金项目（51078045）；

本校为第一机构

为了提高SMA路面的高温抗变形能力,以布敦岩沥青（BRA）作为改性剂,对5种BRA掺量的BRA与SBS改性沥青复合改性沥青玛蹄脂碎石混合料SMA-13（简记为BSSMA-13）的配合比设计和路用性能进行了试验研究。根据BRA中纯天然沥青和矿物质含量及沥青混合料材料组成,提出了BRA改性沥青混合料配合比的计算方法,为其配合比设计提供了分析依据。研究结果表明：BRA可替代部分SBS改性沥青、细集料和矿粉,但不应采用BRA中纯天然沥青等量替代SBS改性沥青;BSSMA-13的总最佳油石比随着BRA掺量的增加而略有增加,在BRA掺量2%-5%范围内,提高0.1%-0.3%。路用性能检验表明：BRA的掺入可有效提高BSSMA-13的高温稳定性、水稳...

In order to improve the high-temperature anti-deformation capacity of SMA pavement,the Buton rock asphalt (BRA)is used as the modifier to conduct the experi-mental research on the mixture design and pavement performance of compound modified stone mastic asphalt mixture SMA-13 of BRA and SBS modified asphalt (abbrevd BSS-MA-13)with five kinds of BRA mixing amount.According to the contents of pure nat-ural asphalt and mineral in the BRA as well as the material composition of asphalt mix-ture,the calculation method of mixture ratio of BRA modified asphalt mixture is put forward to provide an anal...