Zhenhua Duan, Nv Han, Amardeep Singh, Jianzhuang Xiao*
Journal of Renewable Materials, Vol.8, No.11, pp. 1375-1390, 2020, DOI:10.32604/jrm.2020.013044
Abstract Recycled aggregates (RA) are frequently obtained from various
unknown sources, which caused variation in properties among recycled aggre-
gates concrete (RAC). This paper investigated the macro and microscopic proper-
ties of RAC prepared with RAs originated from different parent concretes with
90-day strength ranging from 30 MPa to 100 MPa. These parent concretes were
prepared in advance and crushed to produce RA of distinct qualities. The attached
mortar content can reach up to 69% in the concrete with highest strength grade.
The microscopic investigation on different RAC was conducted with the X-ray
Micro-Computed Tomography scanning technique and image process. Experi-… More >
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