摘要
通过在沥青混凝土中掺入一定量的导热相材料石墨,研究掺入导热相材料对沥青混凝土路用性能和热学性能的影响。研究结果表明:掺入石墨后,导热沥青混凝土的强度大大下降;但石墨能够大幅提高沥青混合料的高温稳定性;在间接拉伸的应力模式下,掺入石墨的导热沥青混凝土具有更好的耐疲劳性能。提出了同时具有优良导热性能和路用性能的沥青混凝土的组成设计方法。
Through adding in the asphalt concrete with a certain amount of heat conduction in material graphite, the thermal conductivity of mixed in material bituminous concrete performance and the influence of thermal properties were researched. The results illustrate that with the addition of graphite the indirect tensile strength is greatly weakened; the permanent deformation can be greatly improve by the addition of graphite; the addition of graphite can improve the fa- tigue properties of graphite. Design method was put forward to produce asphalt concrete sith good thermal conductivity and way-use performance.
出处
《建材世界》
2013年第1期57-61,共5页
The World of Building Materials
关键词
沥青混凝土
导热性能
组成设计
asphalt concrete
heat-conducting property
composition design
