评估过度预热的回收料对再生沥青混凝土的影响
发布时间：2018-08-02 14:05
【摘要】：近几年来,因资源过度开采导致建筑材料价格日益增加,加上人们逐渐重视资源回收观念,已重视道路刨除的沥青混凝土回收料的回收再利用。然而,在输送过程中,只能知道拌合鼓初端送入口的加热温度为多少,并不能实际掌握拌合鼓内的实际温度。因此,回收料有可能受到高温加热,导致产生老化甚至碳化现象,进而影响再生沥青混凝土的质量。本研究采用沥青拌合厂回收沥青混凝土作为研究材料,依据回收料不同老化条件主要以微观差异性及工程性质来探讨,研究结果显示,过度预热的回收料的确会造成再生沥青混凝土的质量不佳,尤其抵抗水侵害的能力明显降低许多。
[Abstract]:In recent years, due to excessive exploitation of resources, the price of building materials is increasing day by day. In addition, people pay more attention to the concept of resource recovery and the recovery and reuse of asphalt concrete recycled materials. However, in the transportation process, the heating temperature of the initial inlet of the mixing drum can only be known, and the actual temperature in the mixing drum can not be grasped. Therefore, the recycled materials may be heated at high temperature, resulting in aging and even carbonation, which will affect the quality of recycled asphalt concrete. In this study, the recycled asphalt concrete in asphalt mixing plant was used as the research material. According to the different aging conditions of the recycled material, the microcosmic difference and engineering properties were mainly discussed. The results showed that, Excessive preheating of recycled materials does result in poor quality of recycled asphalt concrete, especially its ability to resist water damage.
【作者单位】： 攀枝花学院土木工程学院;
【分类号】：TU528
，
本文编号：2159675
[Abstract]:In recent years, due to excessive exploitation of resources, the price of building materials is increasing day by day. In addition, people pay more attention to the concept of resource recovery and the recovery and reuse of asphalt concrete recycled materials. However, in the transportation process, the heating temperature of the initial inlet of the mixing drum can only be known, and the actual temperature in the mixing drum can not be grasped. Therefore, the recycled materials may be heated at high temperature, resulting in aging and even carbonation, which will affect the quality of recycled asphalt concrete. In this study, the recycled asphalt concrete in asphalt mixing plant was used as the research material. According to the different aging conditions of the recycled material, the microcosmic difference and engineering properties were mainly discussed. The results showed that, Excessive preheating of recycled materials does result in poor quality of recycled asphalt concrete, especially its ability to resist water damage.
【作者单位】： 攀枝花学院土木工程学院;
【分类号】：TU528
，
本文编号：2159675
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