Discussion on properties and microstructure of geopolymer concrete containing fly ash and recycled aggregate

Xiao Shuang Shi, Qing Yuan Wang, Xiao Ling Zhao, Collins Frank

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

22 Citations (Scopus)

Abstract

Construction materials dominate the main responsibility to maintain the environmental sustainable development in human's activities. Geopolymer concrete containing fly ash and recycled aggregate is a new concrete which can reuse the by-product of power station and waste concrete, as well as reduce the production of cement which contribute a lot of carbon dioxide emission in the manufacturing process. In this paper, experiments were carried out to investigate the mechanical properties and microstructure of geopolymer concrete with different recycled aggregate contents. Six mixtures were designed including alkali-activated fly ash geopolymeric recycled concrete and corresponding ordinary concrete as the comparison. The compressive strength of the concrete with 0%, 50% and 100% recycled aggregates was tested. The microstructure of these concrete were investigated by petrographic microscope under transmit light. According to experimental results, the strength development and failure mechanism are discussed. Furthermore, the application of such geopolymer concrete is discussed and suggested.

Original languageEnglish
Title of host publicationTrends in Building Materials Research
Pages1577-1583
Number of pages7
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2nd International Conference on Structures and Building Materials, ICSBM 2012 - Hangzhou, China
Duration: 9 Mar 201211 Mar 2012

Publication series

NameAdvanced Materials Research
Volume450-451
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Structures and Building Materials, ICSBM 2012
Country/TerritoryChina
CityHangzhou
Period9/03/1211/03/12

Keywords

  • Compressive strength
  • Fly ash
  • Geopolymer
  • Microstructure
  • Recycled aggregate

ASJC Scopus subject areas

  • Engineering(all)

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