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Influence of Opoka Additive on Composite Cement Hydration
Abstract:
The purpose of this research is to identify influence of natural pozzolana - opoka additive on hydration properties of the composite cement consisting of clinker, slag, opoka and gypsum. Recipes are created by reducing the amount of clinker from 60% to 20% to meet the requirements of cement composition according EN 197-1 standard (table 3).It was estimated that slag and opoka are increasing strength properties of the samples and accelerates the hydration of C3S, moreover, participate in pozzolanic reaction in the composite cement. Slag has a greater effect on the compressive strength of samples after 1 month of hydration and opoka - after 3 months. It was found that opoka additive accelerates the hydration of C3S more to compare with slag.
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3-11
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Online since:
October 2015
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© 2016 Trans Tech Publications Ltd. All Rights Reserved
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