Sustainable Valorisation of Silane-Treated Waste Glass Powder in Concrete Pavement

Mazen J. Al-Kheetan, Juliana Byzyka and Seyed Hamidreza Ghaffar
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Mazen J. Al-Kheetan: Civil and Environmental Engineering Department, College of Engineering, Mutah University, Mutah, P.O. Box 7, Karak 61710, Jordan
Juliana Byzyka: Civil Engineering Department, School of Science, Engineering and Environment, University of Salford, Newton Building, Crescent, Salford M5 4NT, UK
Seyed Hamidreza Ghaffar: Department of Civil and Environmental Engineering, College of Engineering, Design and Physical Sciences, Brunel University London, Kingston Ln, Uxbridge, Middlesex UB8 3PH, UK

Sustainability, 2021, vol. 13, issue 9, 1-14

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.

Keywords: glass powder; sustainable development; concrete; silane; morphology; strength (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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