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

Al-Kheetan, MJ, Byzyka, J ORCID: https://orcid.org/0000-0002-5570-8909 and Ghaffar, SH 2021, 'Sustainable valorisation of silane-treated waste glass powder in concrete pavement' , Sustainability, 13 (9) , p. 4949.

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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.

Item Type: Article
Contributors: Bocci, E (Editor)
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Sustainability
Publisher: MDPI
ISSN: 2071-1050
Related URLs:
Depositing User: Dr J Byzyka
Date Deposited: 28 Apr 2021 14:20
Last Modified: 28 Aug 2021 10:49
URI: http://usir.salford.ac.uk/id/eprint/60127

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