反应型沥青混合料路用性能的评价研究

• 作 者: 陈娟
• 机 构: 江苏省交通规划设计院股份有限公司,
• 出 处: 公路
• 发表日期: 2004年期
• 关键词: 沥青混合料 低温抗裂性 水稳定性能 高温稳定性 拌和温度 高温性能 改性剂 试验参数 动稳定度 马歇尔试验

选用AC-13C、AC-20C两种级配对ElvaloyRET沥青混合料进行配合比设计,确定各试验参数,并在配合比设计工作基础上,对ElvaloyRET沥青混合料与基质沥青、SBS沥青混合料的高温稳定性、低温抗裂性、水稳定性能进行了对比分析。结果表明:ElvaloyRET沥青混合料的最佳拌和温度为165℃~170℃,最佳击实温度为155℃~160℃;ElvaloyRET沥青混合料的高温性能、水稳定性能均得到大幅度提升,低温性能有所改善,特别适用于国内高温多雨的地区,为ElvaloyRET改性剂在国内的应用推广提供了技术支撑。

The AC-13C and AC-20C mixes were designed for the ElvaloyRET asphalt mixture to determine the test parameters. Based on the mix design, the ElvaloyRET asphalt mixture and the asphalt, SBS asphalt Mixture of high temperature stability, low temperature crack resistance, water stability were compared. The results show that the optimum mixing temperature of ElvaloyRET asphalt mixture is 165 ℃ ~ 170 ℃ and the optimum compaction temperature is 155 ℃ ~ 160 ℃. The high temperature performance and water stability of ElvaloyRET asphalt mixture have been greatly improved Improve, low temperature performance has improved, especially for the domestic hot and rainy areas, as ElvaloyRET modifier in the country to provide technical support.