What is it about?

This paper investigates the sulfate resistance of blended cements produced by replacing 10, 20, and 30% of sulfate resisting cement (SRC) with Algerian natural pozzolan. Ordinary and blended cement mortar specimens were cast and immersed in a 5% sodium sulfate solution for 3 years. The sulfate resistance of mortars was evaluated by visual examination, compressive strength, mass change and diffraction (XRD), which was used to identify the degradation products formed by sulfate attack.

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Why is it important?

The test results demonstrated that the sulfate resisting cement incorporating 10% of natural pozzolan was less susceptible to sulfate attack. In addition to improved performance.

Perspectives

The results promise the production of a sustainable building material with environmental and economic benefits due to the reduced amount of overly-high-energy-consuming cement used and the potential reduction of the cost of sulfate resisting cement.

RAMDANE CHIHAOUI
National polytechnique schoole of Oran

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This page is a summary of: The Effect of Natural Pozzolan on Sulfate Resisting Cement Exposed to Sodium Sulfate Attack for Attaining Sustainable Building Material, Key Engineering Materials, July 2015, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/kem.650.122.
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