THE EFFECT OF METAKAOLIN ADDITIONS ON STRENGTH DEVELOPMENT IN CEMENT MORTARS
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Published:2002
S S Potgieter, J H Potgieter, P Napo, 2002. "THE EFFECT OF METAKAOLIN ADDITIONS ON STRENGTH DEVELOPMENT IN CEMENT MORTARS", Challenges of Concrete Construction: Volume 5, Sustainable Concrete Construction: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 9–11 September 2002, Ravindra K. Dhir, Thomas D. Dyer, Judith E. Halliday
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Metakaolin is a pozzolanic material obtained through thermal activation of kaolin. It has several important advantages when used as a mineral admixture addition to cement. This paper describes the strength enhancement observed in mortars containing metakaolin additions between 10% and 30%. It was found that compressive strengths increase with increased curing times and depended strongly on the activation temperature used. Strength enhancements did not depend significantly on the concentration of metakaolin addition. Significant improvements in compressive strengths of cement mortars, up to 80% or more, were found in selected cases.
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