Sulfate Resistance of Alkali Activated Pozzolans

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Abstract

The consequence of sulfate attack on geopolymer concrete, made from an alkali activated natural pozzolan (AANP) has been studied in this paper. Changes in the compressive strength, expansion and capillary water absorption of specimens have been investigated combined with phases determination by means of X-ray diffraction. At the end of present investigation which was to evaluate the performance of natural alumina silica based geopolymer concrete in sodium and magnesium sulfate solution, the loss of compressive strength and percentage of expansion of AANP concrete was recorded up to 19.4% and 0.074, respectively.
Original languageEnglish
Pages (from-to)145-158
Number of pages14
JournalInternational Journal of Concrete Structures and Materials
Volume9
Issue number2
DOIs
Publication statusPublished - 1 Jun 2015

Keywords

  • Sulphate attack
  • Geopolymer concrete
  • Alkali activated natural pozzolan concrete
  • AANP concrete
  • X-ray diffraction

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