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01.06.2015 | Ausgabe 2/2015 Open Access

International Journal of Concrete Structures and Materials 2/2015

Sulfate Resistance of Alkali Activated Pozzolans

Zeitschrift:
International Journal of Concrete Structures and Materials > Ausgabe 2/2015
Autoren:
Dali Bondar, C. J. Lynsdale, N. B. Milestone, N. Hassani

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.

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