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基于温拌剂(Sasobit)掺量为沥青含量的1%~5%之间变化条件下,对不同Sasobit掺量的沥青混合料进行温拌效果及路用性能研究。结果表明:掺加一定量Sasobit能显著影响沥青混合料温拌效果和路用性能,且具有明显规律。随着Sasobit掺量增加,混合料温拌效果呈现先增加后降低的变化趋势,当掺量为3.1%时,能够使混合料达到最优的温拌效果;高温稳定性能处于上升趋势,增长速度先快后慢,随后趋于平稳状态;低温性能呈现降低的变化规律,且降低速率较快;而水稳定性能表现为先增加后减小,存在一个合适掺量使混合料水稳定性能最佳。
Based on the change of content of Sasobit between 1% and 5% of asphalt content, the effects of warm mix and road performance of asphalt mixture with different content of Sasobit were studied. The results show that: adding a certain amount of Sasobit can significantly affect the warm mixing effect and road performance of asphalt mixture, and has obvious rules. With the increase of the content of Sasobit, the effect of warm mix of the mixture first increases and then decreases, and when the content of Sasobit is 3.1%, the optimum mixing effect can be achieved. The stability of high temperature is on the rise and the growth rate Then quickly and slowly, then tends to steady state; the low temperature performance shows a decreasing change rule, and the rate of decrease is fast; while the water stability performance first increases and then decreases, and there exists a suitable dosage to make the water stability of mixture be the best .