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随着四新技术的不断涌现,合理确定和有效控制工程造价也越来越重要。为了评价复配双改性添加剂RCA的性能优势,先介绍了RCA的特性,然后对RCA改性沥青混合料的高温性能、水稳定性能、低温性能以及疲劳性能进行试验,并与基质沥青混合料和SBS改性沥青混合料进行对比分析,最后分析了RCA的经济效益。研究结果表明:RCA能显著提高沥青混合料的高温抗车辙能力、抗水损害能力、低温抗裂性能以及疲劳寿命,且提升沥青混合料综合路用性能好于SBS,性价比高于SBS,值得在公路工程中推广。
With the continuous emergence of four new technologies, it is more and more important to rationally determine and effectively control the construction cost. In order to evaluate the performance advantages of the double modified additive RCA, the characteristics of RCA were introduced firstly, and then the high temperature performance, water stability, low temperature performance and fatigue properties of RCA modified asphalt mixture were tested and compared with matrix asphalt mixture And SBS modified asphalt mixture for comparative analysis, the final analysis of the economic benefits of RCA. The results show that: RCA can significantly improve the high temperature rutting resistance, water damage resistance, low temperature crack resistance and fatigue life of asphalt mixture, and improve the comprehensive performance of asphalt mixture better than SBS, cost-effective than SBS, it is worth Promotion in highway engineering.