Utilizing high volumes quarry wastes in the production of lightweight foamed concrete

Siong Kang Lim, Cher Siang Tan, Bo Li, Tung Chai Ling, Md Uzzal Hossain, Chi Sun Poon

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

This paper investigates the feasible utilization of quarry dust as an alternative to river sand in the production of lightweight foamed concrete (LFC). LFC with a density of 1300 ± 50 kg/m3and fixed cement/filler ratio of 1:1 were adopted in this study. Quarry dust was used to replace sand at ratios of 75% and 100%, and four different water-to-cement ratios (w/c) of 0.52, 0.54, 0.56 and 0.58 were studied and compared. For a given w/c ratio, it was found that the use of high volume quarry dust could reduce the fluidity and increase the compressive strength and the thermal conductivity of LFC. However, no significant decrease of compressive strength was observed with the increase of w/c ratio, probably due to the reduction of foam volume requirement in the system. Life cycle assessment results indicated that the LFC containing quarry dust possessed less environmental impact in terms of lower energy consumption and lesser amount of greenhouse gases emission.
Original languageEnglish
Pages (from-to)441-448
Number of pages8
JournalConstruction and Building Materials
Volume151
DOIs
Publication statusPublished - 1 Oct 2017

Keywords

  • Compressive strength
  • Fluidity
  • Life cycle assessment
  • Lightweight foamed concrete
  • Quarry dust
  • Thermal conductivity

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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