摘要
采用冷拌改性沥青,对不同沥青用量和级配的热沥青及冷拌沥青混合料路用性能进行了对比试验。结果表明:普通热沥青混合料比冷拌沥青混合料的空隙率小,VMA比冷拌沥青混合料低;冷拌沥青混合料路用性能稍低于普通热沥青混合料,但均满足规范要求,而且冷拌沥青混合料适用性广,受气候影响小,绿色环保,在应用价值及前景方面具有优势。研究结果为冷拌沥青混合料的广泛应用提供了理论基础和试验支撑。
The cold mixed modified asphalt is used to compare and test the pavement performances of the different dosages and gradations of hot mixed asphalt and cold mixed asphalt mixtures. The void ratio of the ordinary hot asphalt mixture is smaller than the cold mixed asphalt mixture, the ratio of VMA is lower than the cold mixed asphalt mixture, and the pavement performance of cold mixed asphalt mixture is slightly lower than the ordinary hot asphalt mixture. But all meet the standard requirements. The cold mixed asphalt mixture has the advantages of wide applicability, little climate effect, greening, environmental protection, good application value and prospect. The study result provides the theoretical basis and testing support for the wide application of cold mixed asphalt mixture.
出处
《城市道桥与防洪》
2017年第6期261-263,共3页
Urban Roads Bridges & Flood Control
关键词
沥青路面
冷拌沥青混合料
配合比设计
路用性能
asphalt pavement
cold mixed asphalt mixture
design of mixing proportion
pavement performance
