Suitability Of Recycled Crushed Glass as a Replacement for Natural Sand in Concrete

Murerwa, Mordecai (2023) Suitability Of Recycled Crushed Glass as a Replacement for Natural Sand in Concrete. [USQ Project]

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Abstract

Research into recycled crushed glass (RCG) as a potential replacement for fine aggregates has attracted notable interest worldwide. This experimental study aims to build on existing literature (Guo et al. 2020) and progress further by testing the RCG percentage in the test specimens from 20% to 40% RCG in lieu of natural sand, thereby measuring the mechanical physical properties of the concrete samples.

The current published literature shows data inconsistencies that have affected consumer confidence.

This project aims to find the causes of inconsistent results for concrete samples with RCG, reach a consensus on the effects of recycled crushed glass in concrete, provide consistent experimental evidence that supports the use of recycled crushed glass in concrete, and determine the appropriate mix ratios of recycled crushed glass in concrete, that will give adequate compressive strength, flexural strength, split-tensile strength, slump values,
durability, and appearance.

The development of an optimum mix design will provide consumer confidence in the RCG material as it ensures consistent physical and mechanical properties can be achieved with each mix when the correct mix design process is followed, as outlined in this report.

As recycled crushed glass is a more sustainable form of aggregate when compared to natural sand, reducing the depletion of natural sand deposits will provide significant environmental benefits worldwide. This report demonstrates that this alternative material can now be successfully utilised in some applications and at low RCG replacement percentages which allows for a more sustainable solution to be adopted.


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Item Type: USQ Project
Item Status: Live Archive
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -)
Supervisors: Banerjee, Sourish
Qualification: Bachelor of Engineering (Honours) (Civil)
Date Deposited: 30 Sep 2025 04:33
Last Modified: 30 Sep 2025 04:34
Uncontrolled Keywords: recycled crushed glass; concrete
URI: https://sear.unisq.edu.au/id/eprint/52979

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