Natural Pozzolans Role in Permeability Reduction and Promoting the Concrete Durability Against Chloride Attack

Document Type : Research Article



This paper presents the results of experimental study on the effect of natural pozzolans: Jajrood Truss, Eskandan Pumice, Abyek Tuff, and Khash Pumice, on the ordinary structural concrete durability in chloride corrosion. Concrete specimens were made of three pozzolan replacements, and Rapid Chloride Penetration test, Electrical Resistance test, Half-Cell Potential test, water permeability test, and water adsorption test were conducted in different ages.
Generally, the results indicate that natural pozzolans have positive effects on concrete specimen resistance to the chloride ions penetration and bars corrosion in comparison with concretes containing ordinary cement.


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