Rheological and functional evaluation of the interactions between bitumen and rubber
Rheological and functional evaluation of the interactions between bitumen and rubber
复制标题
沥青和橡胶之间相互作用的流变学和功能评估
DOI：
10.1201/9780203092989-16
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
A. Machado
中科院分区：
文献类型：
--
作者：
Elvira Joana Ferreira Peralta;H. Silva;J. Pais;A. Machado
据估计，每个居民每年约有10公斤轮胎被丢弃。这种残留物的负面影响可以减少，因为橡胶可以作为沥青橡胶(AR)粘结剂的一种成分在道路路面中重复使用。然而，构成AR粘结剂的材料及其相互作用还没有得到充分的表征。在这项工作中，几种基质沥青与胶粉相互作用，以产生AR粘结剂，然后通过改进的“篮子排水法”分离，以回收残留的沥青和橡胶。采用EN 12591或14023标准试验和动态剪切流变仪评价AR生产过程中粘结剂性能的变化。通过微观测试评价了橡胶的溶胀和解聚变化。据观察，基质沥青的特性显著影响橡胶和AR粘结剂的性能(主要是与较软沥青的相互作用)。
It is estimated that about ten kilograms of tires are discarded per inhabitant annually. The negative impact of this residue can be reduced, since rubber can be reused as a constituent of asphalt rubber (AR) binder in road pavements. However, the materials which constitute the AR binders and their interaction are not sufficiently characterized. In this work several base bitumens interacted with crumb rubber, in order to produce AR binders, which were subsequently separated, by using a modified “Basket drainage method” to recover the residual bitumen and rubber. EN 12591 or 14023 standards tests and the Dynamic Shear Rheometer (DSR) were used to evaluate the changes in the properties of the binders during AR production. The swelling and depolymerisation changes in the rubber were evaluated through microscopic tests. It was observed that the characteristics of the base bitumen significantly affect the rubber and the AR binder properties (mainly for interactions with softer bitumens).