Mechanical and physical properties of glass waste mixture in concrete

Ahmad Daud, Fatin Farhana (2023) Mechanical and physical properties of glass waste mixture in concrete. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

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Abstract

Solid waste management is define as one of the most pressing environmental issues in the world. Sadly, post-consumer glass is a significant of solid waste component, and finding markets that would receive glass collected for recycling is difficult. The existence and accumulation of this trash posed a threat to the ecosystem. As a result, employing discarded glass as an aggregate replacement in concrete is a promising option for reducing waste disposal costs while also conserving natural resources. To address these issues, this study utilized fundamental experimental research to evaluate the feasibility of employing crushed waste glass as an aggregate replacement in concrete. Glass waste samples were collected and mashed into 2 sizes which are fine and coarse before being mixed into the concrete mix. The size of the aggregates was determined by sieving. Fine aggregates were available in powder form up to 4mm in size, while coarse aggregates were available in 5mm to 20mm in size. After performing compressive strength tests on five different ratios, the ratio for cement and sand used in this research was 1:2. There were 39 samples of concrete mixes made with 0%, 5%, 10%, 20%, 30%, 40%, and 50% waste glass substitution by weight. Compressive strength, dry density, water absorption and moisture content were studied under experimental investigation. After several tests were conducted, concrete with fine glass aggregates was determined to be the best concrete, with 21.19% strain, 6.32% water absorption, 1.72% density, and 4.1% moisture content. Using glass dust waste in concrete is an intriguing possibility for waste disposal sites and natural resource conservation.

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