温拌剂种类对沥青混合料性能的影响研究

Research on Influence of Types of Warm-mixing Agents on Asphalt Mixture Performance

通过室内试验对比分析了掺加不同温拌剂的沥青混合料的压实温度与路用性能,试验结果表明:Aspha-Min降温效果最佳,Evotherm次之,Sasobit最低;Sasobit可以大幅度提高沥青混合料的高温稳定性和劈裂强度,但低温性能下降,水稳定性基本不变;Aspha-Min和Evotherm降低了沥青混合料的高温性能和水稳定性,但可以提高沥青混合料的低温性能。

The contrastive analysis on the compaction temperature and pavement performance of asphalt mixture with different warm-mixing agents is made by laboratory test. The test results show that： the cooling effect of Aspha-Min is the best,that of Evotherm is the second,and that of Sasobit is the lowest; Sasobit can greatly improve the high-temperature stability and splitting strength of asphalt mixture,but the low-temperature performance is reduced,and water stability keeps unchanged basically; Aspha-Min and Evotherm can reduce the high-temperature performance and water stability of asphalt mixture,but they can improve the low-temperature performance of asphalt mixture.