Evaluation of the effects of crushed and expanded waste glass aggregates on the material properties of lightweight concrete using image-based approaches

Sang Yeop Chung, Mohamed Abd Elrahman, Pawel Sikora, Teresa Rucinska, Elzbieta Horszczaruk, Dietmar Stephan

Research output: Contribution to journalArticlepeer-review

88 Citations (Scopus)

Abstract

Recently, the recycling ofwaste glass has become aworldwide issue in the reduction ofwaste 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.

Original languageEnglish
Article number1354
JournalMaterials
Volume10
Issue number12
DOIs
Publication statusPublished - 2017 Nov 25

Bibliographical note

Publisher Copyright:
© 2017 by the authors.

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics

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