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Portland Limestone Cement Equivalent Strength Explained
Title: Portland Limestone Cement Equivalent Strength Explained
Author(s): Laurent Barcelo, Michael D.A. Thomas, Kevin Cail, Anik Delagrave, Bruce Blair
Publication: Concrete International
Volume: 35
Issue: 11
Date: November 1, 2013
ABSTRACT
This article reports on the mechanisms that allow portland limestone cement (PLC) mixtures to maintain the same levels of strength as portland cement (PC) mixtures. Mechanisms discussed include the filler effect, increased cement paste volume, heterogeneous nucleation, faster kinetics of hydration, and production of calcium carboaluminates. The performance of two PLCs produced on two different milling circuits are compared against a control PC produced on one of the same circuits.
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