温拌橡胶改性沥青混合料性能评价

Performance Evaluation of Rubber Modified Asphalt Mixture with Warm Mix

基于SGC压实效果确定了橡胶改性沥青混合料的级配以及拌和及压实温度,采取不同的方法室内对比分析并评价了温拌橡胶改性沥青混合料的高温性能、低温性能、抗水损害性能,定量分析了温拌橡胶改性沥青混合料的节能减排效益。结果表明,温拌橡胶改性沥青混合料的高温性能有所提高,温拌剂的添加并没有损害橡胶改性沥青混合料的水稳定性,而温拌橡胶改性沥青混合料的低温性能有小幅提高;温拌橡胶改性沥青混合料与热拌相比,拌和与压实温度降低20℃左右。

The grading and temperature of mixing and compaction of rubber modified asphalt mixture have been determined by SGC compaction,high temperature anti-rutting performance,low-temperature anti cracking performance and water resistance of warm mix rubber modified asphalt mixture have been analyzed and evaluated on the basis of indoor comparison between different methods,the quantitative analysis of the energy saving benefits of warm mix rubber modified asphalt mixture has been conducted. The results have shown that the warm mix additive could greatly improve the high temperature performance of rubber modified asphalt mixture; warm mix agent does not damage water stability of the rubber modified asphalt mixture; low temperature performance of warm mix rubber modified asphalt mixture increases slightly; being compared with hot mix,compaction temperature of warm mix rubber modified asphalt mixture could be 20 ℃ lower.