Garcia-Troncoso, Natividad and Li, Lufan and Cheng, Quan and Mo, Kim Hung and Ling, Tung-Chai (2021) Comparative study on the properties and high temperature resistance of self-compacting concrete with various types of recycled aggregates. Case Studies in Construction Materials, 15. ISSN 2214-5095, DOI https://doi.org/10.1016/j.cscm.2021.e00678.
Full text not available from this repository.Abstract
Construction and demolition activities generate numerous waste that could be reutilized as recycled aggregates. The replacement of natural aggregate with recycled aggregate generally has negative impact on the performance of conventional concrete. This impact is found to be less significant in self-compacting concrete (SCC), owing to the better quality of binder which modifies the interfacial transition zone and lesser amount of coarse aggregates used. Considering the wide sources of recycled aggregates such as concrete, bricks and blocks, few studies were conducted on comparing the performance of SCC incorporating different types of recycled aggregates. In addition, since SCC is more commonly used in high-rise buildings which may experience fire risks, it is important to ascertain the corresponding high temperature resistance. In this paper, three different types of recycled aggregates are considered, namely recycled concrete aggregate (RCA), recycled brick aggregate (RBA), and recycled concrete block aggregate (CBA). 100 % replacement is feasible for SCC-CBA and SCC-RCA because of the minor strength reductions. The results also showed that the RBA and CBA concretes outperformed the NA concrete at high temperature (400 degrees C and 600 degrees C). RBA is suggested to partially replace natural aggregate, since it gives inferior performance at room temperature, but it is more recommended to be used in high temperature environments.
| Item Type: | Article |
|---|---|
| Funders: | China Hunan Provincial Science & Technology Department "Program for Innovative Talents of Excellent Postdoctoral Fellow" [2020RC2031] |
| Uncontrolled Keywords: | Self-compacting concrete; Interfacial transition zone; Recycled brick; Recycled concrete block; Recycled concrete aggregate; High temperature resistance |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 01 Apr 2022 08:05 |
| Last Modified: | 01 Apr 2022 08:05 |
| URI: | http://eprints.um.edu.my/id/eprint/27814 |
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