Influence of recycled glass content and curing conditions on the properties of self-compacting concrete after exposure to elevated temperatures

Tung Chai Ling, Chi Sun Poon, Shi Cong Kou

Research output: Journal article publicationJournal articleAcademic researchpeer-review

67 Citations (Scopus)

Abstract

The aim of this paper is to assess the performance of self-compacting glass concrete (SCGC) after exposure to four elevated temperatures of 300 °C, 500 °C, 600 °C and 800 °C. The influence of curing conditions on the high temperature performance of SCGC was also investigated. For each curing regime, five SCGC mixtures were prepared with recycled glass (RG) which was used to replace natural fine aggregate at the level of 0%, 25%, 50%, 75% and 100%. After exposure to the elevated temperatures, concrete mass loss, density, water porosity, ultrasonic pulse velocity (UPV) and water sorptivity were determined and then a compressive strength test was conducted. The test results indicate that regardless of the exposure temperature, all the water cured specimens had higher residual strengths and mass losses while the water porosity and water sorptivity values were lower as compared to the corresponding air cured specimens. The incorporation of RG in the concrete mixes helped to maintain the concrete properties after the high temperature exposure due to the melting and resolidification of the recycled glass in the concrete matrix.
Original languageEnglish
Pages (from-to)265-272
Number of pages8
JournalCement and Concrete Composites
Volume34
Issue number2
DOIs
Publication statusPublished - 1 Feb 2012

Keywords

  • Curing condition
  • Elevated temperature
  • Recycled glass
  • Residual properties
  • Self-compacting concrete

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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