Comparison of suitable pozzolanic material for high grade concrete

Abstract

This paper presents the results of an experimental work carried out to evaluate the compressive strength and water permeability and rapid chloride permeability of high grade concrete which cement was partially replaced with superfine fly ash, GGBFS, Microsilica, and Metakaolin. All four pozolanic materials were replaced with three percentages (4%, 6%, and 8%) of pozzolanic material by weight. Tests were performed for properties of fresh concrete, compressive strength, water permeability, rapid chloride permeability was determined at 7,14,28,56, days. Test results indicate significant improvement in the strength properties of High grade concrete by the addition of pozzolanic material as partial replacement of ordinary Portland cement, and can be effectively used in structural concrete.