利用玻璃优化含再生建筑集料的热拌沥青混合料的沥青吸收量

The Use of Glass to Optimize Bitumen Absorption of Hot Mix Asphalt Containing Recycled Construction Aggregates.

作者信息

Tahmoorian Farzaneh, Samali Bijan, Yeaman John, Crabb Russell

机构信息

Centre for Infrastructure Engineering, Western Sydney University, Penrith, NSW 2751, Australia.

Faculty of Science, Health, Education and Engineering, University of Sunshine Coast, Sippy Downs, QLD 4556, Australia.

出版信息

Materials (Basel). 2018 Jun 21;11(7):1053. doi: 10.3390/ma11071053.

DOI:10.3390/ma11071053

PMID:29933578

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6073253/

Abstract

Asphalt mixtures containing recycled construction aggregates (RCA) have the problem of high bitumen absorption. This paper characterizes the effects of glass on the bitumen absorption and volumetric properties of asphalt mixtures containing 25% and 50% RCA through laboratory investigation. The materials used in the test program include C320 bitumen, RCA and recycled glass. Three glass contents of 0%, 10%, and 20% in terms of the total weight of fine aggregates are used in the mixture designs for preparing 100 mm diameter specimens containing 0%, 25% and 50% RCA, under 120 gyration cycles. Different types of tests including aggregate specification tests and volumetric analysis tests were conducted on individual aggregates and asphalt mixtures in accordance with Australian standards. The test results indicate that the glass waste can be a viable material for improving the problem of high bitumen absorption of asphalt mixtures containing RCA.

摘要

含有再生建筑集料（RCA）的沥青混合料存在沥青吸收量高的问题。本文通过实验室研究，表征了玻璃对含有25%和50%RCA的沥青混合料的沥青吸收和体积特性的影响。试验计划中使用的材料包括C320沥青、RCA和再生玻璃。在混合料设计中，以细集料总重量计，使用0%、10%和20%三种玻璃含量，制备直径100毫米、含有0%、25%和50%RCA的试件，旋转次数为120次。根据澳大利亚标准，对单个集料和沥青混合料进行了包括集料规格试验和体积分析试验在内的不同类型试验。试验结果表明，玻璃废料可以作为一种可行的材料，用于改善含有RCA的沥青混合料沥青吸收量高的问题。