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Mechanical and durability properties of sustainable self-compacting concrete with recycled concrete aggregate and fly ash, slag and silica fume

Open access
Guo, Zhanggen, Jiang, Tao, Zhang, Jing, Kong, Xiangkun, Chen, Chen, Lehman, Dawn E.·2020·Construction and Building Materials

Abstract

This research aims to maximize the content of supplementary cementitious material (SCM) and recycled concrete aggregate (RCA) in self-compacting concrete (SCC) by using a combination of fly ash, slag and silica fume. A sustainable SCC was proposed by substantially substituting natural aggregates with RCA and cement with SCM . A total of 23 mixes, including binary, ternary and quaternary mixes were prepared. Binary mixes were prepared with fly ash and ternary mixes were prepared with fly ash and slag. Quaternary mixes were blended with fly ash, slag, silica fume. The mechanical and durability properties were studied. The effect of RCA and SCM was investigated as well as using a combination of fly ash, slag and/or silica fume. The test results indicate that the proposed combination of fly ash, slag and silica fume can compensate for the detrimental effect of RCA and significantly improve the mechanical and durability properties of SCC with RCA, thus optimize the sustainability performance of SCC by minimizing cement and natural resources content.

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Metadata

Authors
Guo, Z., Jiang, T., Zhang, J., Kong, X., Chen, C., & Lehman, D. E.
Venue
Construction and Building Materials
Publisher
Elsevier BV
Published
2020-01
Volume
231
Pages
117115
ISSN
0950-0618 (ISSN-L)
OpenAlex
W2979505781
Cited by
281
References
20
FWCI
16.60
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Mechanical and durability properties of sustainable self-compacting concrete with recycled concrete aggregate and fly ash, slag and silica fume. https://app.cochat.ai/papers/10.1016/j.conbuildmat.2019.117115
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Guo, Z., Jiang, T., Zhang, J., Kong, X., Chen, C., & Lehman, D. E. (2020). Mechanical and durability properties of sustainable self-compacting concrete with recycled concrete aggregate and fly ash, slag and silica fume. Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2019.117115

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