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Main Title: Evaluation of the effects of crushed and expanded waste glass aggregates on the material properties of lightweight concrete using image-based approaches
Author(s): Chung, Sang-Yeop
Abd Elrahman, Mohamed
Sikora, Pawel
Rucinska, Teresa
Horszczaruk, Elzbieta
Stephan, Dietmar
Type: Article
Language Code: en
Abstract: Recently, the recycling of waste glass has become a worldwide issue in the reduction of waste and energy consumption. Waste glass can be utilized in construction materials, and understanding its effects on material properties is crucial in developing advanced materials. In this study, recycled crushed and expanded glasses are used as lightweight aggregates for concrete, and their relation to the material characteristics and properties is investigated using several approaches. Lightweight concrete specimens containing only crushed and expanded waste glass as fine aggregates are produced, and their pore and structural characteristics are examined using image-based methods, such as scanning electron microscopy (SEM), X-ray computed tomography (CT), and automated image analysis (RapidAir). The thermal properties of the materials are measured using both Hot Disk and ISOMET devices to enhance measurement accuracy. Mechanical properties are also evaluated, and the correlation between material characteristics and properties is evaluated. As a control group, a concrete specimen with natural fine sand is prepared, and its characteristics are compared with those of the specimens containing crushed and expanded waste glass aggregates. The obtained results support the usability of crushed and expanded waste glass aggregates as alternative lightweight aggregates.
Issue Date: 25-Nov-2017
Date Available: 27-Apr-2018
DDC Class: 691 Baustoffe
Subject(s): crushed waste glass
expanded waste glass
lightweight concrete
thermal conductivity
compressive strength
Sponsor/Funder: DFG, TH 662/19-1, Open Access Publizieren 2017 - 2018 / Technische Universität Berlin
Journal Title: Materials
Publisher: MDPI
Publisher Place: Basel
Volume: 10
Issue: 12
Article Number: 1354
Publisher DOI: 10.3390/ma10121354
Page Start: 1
Page End: 16
ISSN: 1996-1944
Appears in Collections:FG Baustoffe und Bauchemie » Publications

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