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Sustainable valorisation of silane-treated waste glass powder in concrete pavement

Al-Kheetan, MJ; Byzyka, J; Ghaffar, SH

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Authors

MJ Al-Kheetan

J Byzyka

SH Ghaffar



Contributors

E Bocci
Editor

Abstract

This research presents new insights into the utilisation of waste glass powder in concrete pavements. Two different types of glass powder were used as a partial replacement for sand: 10% neat glass powder (untreated) and 10% silane-treated glass powder. The interfacial bonding properties, physical properties, and mechanical properties of concrete pavement were assessed at 7 and 28 days. Results exposed a reduction of 5% and 2% in the compressive and flexural strengths, respectively, and an increase of 15% in water absorption after the addition of neat glass powder to concrete after 7 days of curing. This is due to weak interfacial bonding between the glass powder and cementitious matrix. However, the incorporation of silane-coated glass powder led to an increase in the compressive and flexural strengths by more than 22% and 28%, respectively, and reduced the water absorption of concrete by 8%, due to the coupling functionality of silane. After 28 days of curing, the compressive strength of concrete increased by 15% and 22% after the addition of neat glass powder and silane-treated glass powder, respectively. In addition, water absorption dropped by 5% and 7% after the incorporation of neat glass powder and silane-treated glass powder.

Citation

Al-Kheetan, M., Byzyka, J., & Ghaffar, S. (2021). Sustainable valorisation of silane-treated waste glass powder in concrete pavement. Sustainability, 13(9), 4949. https://doi.org/10.3390/su13094949

Journal Article Type Article
Acceptance Date Apr 26, 2021
Publication Date Apr 28, 2021
Deposit Date Apr 28, 2021
Publicly Available Date Apr 28, 2021
Journal Sustainability
Publisher MDPI
Volume 13
Issue 9
Pages 4949
DOI https://doi.org/10.3390/su13094949
Publisher URL https://doi.org/10.3390/su13094949
Related Public URLs http://www.mdpi.com/journal/sustainability

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