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Title: | Sustainable Valorisation of Silane-Treated Waste Glass Powder in Concrete Pavement |
Authors: | Al-Kheetan, MJ Byzyka, J Ghaffar, SH |
Keywords: | glass powder;sustainable development;concrete;silane;morphology;strength |
Issue Date: | 28-Apr-2021 |
Publisher: | MDPI AG |
Citation: | Al-Kheetan, M. J., Byzyka, J. and Ghaffar, S. H. (2021) ‘Sustainable Valorisation of Silane-Treated Waste Glass Powder in Concrete Pavement’, Sustainability. MDPI AG, 13(9), 4949, pp. 1-xx. doi: 10.3390/su13094949. |
Abstract: | Copyright: © 2021 by the authors. 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. |
URI: | https://bura.brunel.ac.uk/handle/2438/22738 |
DOI: | https://doi.org/10.3390/su13094949 |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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