| Issue |
E3S Web Conf.
Volume 293, 2021
2021 3rd Global Conference on Ecological Environment and Civil Engineering (GCEECE 2021)
|
|
|---|---|---|
| Article Number | 01025 | |
| Number of page(s) | 8 | |
| Section | Ecological Environment Protection and Pollution Control | |
| DOI | https://doi.org/10.1051/e3sconf/202129301025 | |
| Published online | 23 July 2021 | |
Summary of research on pretreatment methods of recycled aggregate
China Railway 12th Bureau Group Co., LTD, 030024, China, Shanxi
* Song Yufeng: 1246699749@qq.com
The recycled aggregate obtained by simple crushing and screening of waste concrete has a rough surface and many protruding edges and corners, and most of the aggregate surface is attached with old mortar, when directly used as aggregate in concrete, the water demand is large, the concrete strength and elastic modulus are low, and the durability is poor. Therefore, proper treatment of recycled aggregate is required.This article summarizes the research status of the pretreatment methods of mechanical strengthening, heating grinding, solution impregnation, cement slurry impregnation, carbonization treatment, nano-modification, microbial modification and water cleaning etc., and simply analyzes the advantages and disadvantages of various treatment methods, which provide a reference for the research of recycled aggregate processing methods.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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