100%人工老化沥青的温拌再生结合料性能评价与化学特性分析（英文）

发布时间：2018-08-30 13:48

【摘要】：通过试验分析不同比例的再生剂和温拌剂对于温拌再生沥青的共同作用,对含有100%人工老化沥青的温拌再生沥青的性能与化学特性进行了分析评价.选用3种温拌添加剂与1种商业再生剂GST来再生人工的老化沥青.再生结合料的性能试验包括针入度、软化点以及旋转黏度试验,傅里叶红外光谱试验则用来探讨再生结合料的化学特性.性能试验结果表明,再生剂GST具有再生人工老化沥青的能力;由于再生剂与温拌添加剂的共同作用对于100%老化沥青的再生性能有很大的影响,因此选择两者的合适用量是再生100%老化沥青的关键.红外光谱试验结果表明,再生主要是一种调节化学组分的过程,而且随着温拌添加剂的加入,温拌再生沥青的红外谱图在化学官能图方面并没有发生明显的变化.
[Abstract]:The properties and chemical properties of warm mixed recycled asphalt containing 100% artificial aging asphalt were analyzed and evaluated by analyzing the common effect of different ratio of regenerating agent and warm mix agent on warm mix recycled asphalt. Three kinds of warm mix additives and one commercial regenerative agent GST were used to regenerate artificial aging asphalt. The performance tests of recycled binders include penetration, softening point and rotational viscosity tests. Fourier transform infrared spectroscopy (FTIR) is used to study the chemical properties of recycled binders. The experimental results show that the regenerating agent GST has the ability to regenerate artificial aging asphalt, and that the combined action of regenerating agent and warm mixing additive has a great influence on the regeneration performance of 100% aging asphalt. Therefore, selecting the appropriate dosage of both is the key to regenerate 100% aging asphalt. The results of infrared spectrum test show that regeneration is mainly a process of adjusting chemical component, and with the addition of warm-mixed additives, the infrared spectrum of warm-mixed recycled asphalt does not change obviously in the aspect of chemical functional diagram.
【作者单位】：大连理工大学交通运输学院;
【基金】：The National Natural Science Foundation of China(No.50578031)
【分类号】：U414

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