再生骨料基本特性及再生道路材料工程验证(英文)

Basic Properties of Recycled Aggregate and Engineering Verification of Recycled Road Materials

从再生骨料特性、再生道路材料工程验证、工程经济效益分析三方面出发研究利用废旧混凝土,特别是混杂大量碎砖的建筑废弃物制备道路材料的可行性.结果表明:与天然骨料相比,再生骨料具有压碎值、吸水率较大、表观密度较小、含泥量较高等特点;基于再生骨料的特性,对于再生道路材料还要考虑再生骨料的磨耗值和含水率;再生道路各结构层性能均达到设计要求,工程经济效益显著.

The feasibility of propagating road materials in the use of contracture wastes especially contented great amount waste bricks were researched in three aspects： Performance of recycled aggregate, engineering verification of renewable road materials and engineering economic analysis. Conclusions are as following. Compared to nature aggregate, recycled aggregate has greater crushing value and water absorption, smaller apparent density and higher mud content and so on. As far as renewable road materials is concerned, it is necessary to consider the wear value and moisture content of recycled aggregate based on the characteristics of recycled aggregate. All structural layers＂ performances of road meet the design requirements. The economic benefits of the project are significantly.