废弃热固性复合材料应用于沥青混合料的研究进展  

Research Progress in the Application of Waste Thermosetting Composites toAsphalt Mixtures

作　　者：李沛欣 LI Peixin(Guo Dian United Power Technology Co.,Ltd.,Beijing 100039,China)

机构地区：[1]国电联合动力技术有限公司,北京100039

出　　处：《材料导报》2024年第S01期301-306,共6页Materials Reports

基　　金：国家能源集团联合动力技术有限公司项目(LHDL-2021-14)。

摘　　要：本文综述了废弃热固性复合材料应用于沥青混合料的研究进展,废弃热固性复合材料既可以作为沥青改性剂又可以作为填料,在路用性能方面起到促进作用。废弃玻璃钢作为改性剂能显著提高沥青混合料的高温性能、抗车辙能力、耐湿热性能和低温开裂能力,这是由于沥青混合料中玻璃钢网络形成稳定的三维结构,玻璃钢组分通过溶胀与吸附桥接作用可增加沥青组分结构中的大分子组分。玻璃钢粉末作为沥青混合料填料能提高沥青混合料的中、高温性能、抗车辙性能和抗疲劳性能,这是由于玻璃钢粉末与沥青的粘附性能优异,在沥青混合料内部,玻璃钢可以形成良好的嵌锁骨架结构并可以形成密实充填。同时,总结了废弃热固性复合材料在沥青混合料中的作用机制,最后对废弃热固性复合材料在道路工程中的广泛应用进行了展望。Tn this paper,the research progress of the application of waste thermosetting composites to asphalt mixtures is reviewed.Waste thermosetting composites can be used as both asphalt modifiers and fillers,and play a role in promoting road performance.Waste fiberglass as a modifier can significantly improve the high temperature performance,rutting resistance,moisture and heat resistance and low temperature cracking ability of asphalt mixture,which is due to the stable three-dimensional structure formed by fiberglass network in asphalt mixture,and the macromolecular components in the asphalt component structure can be increased by swelling and adsorption bridge.As a filler of asphalt mixture,fiber reinforced plastic(FRP)powder can improve the medium and high temperature performance,rutting resistance and fatigue resistance of asphalt mixture,which is due to the excellent adhesion performance of FRP powder and asphalt.In the asphalt mixture,FRP can form a good collarbone frame structure and can form a dense pack.At the same time,the action mechanism of waste thermoset composites in asphalt mixture is summarized,and the extensive application of waste thermoset composites in road engineering is prospected.

关 键 词：废弃材料 热固性复合材料 沥青混合料 改性剂 填料 

分 类 号：TU528.42[建筑科学—建筑技术科学]