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Title: Early-Age Shrinkage Behavior of Portland Limestone Cement

Author(s): Barrett, Timothy; Sun, Hongfang; Villani, Chiara; Barcelo, Laurent; and Weiss, Jason

Publication: Concrete International

Volume: 36

Issue: 2

Appears on pages(s): 51-57

Keywords: cracking, fineness, stress, tensile strength


Date: 2/1/2014

This article summarizes the results of a study on the shrinkage behavior of an ordinary portland cement (OPC), a portland-limestone cement (PLC), and a PLC-Slag cement. The results show that the OPC, PLC, and PLC-Slag systems have similar early-age shrinkage, stress development, and cracking behavior, despite the higher fineness of the PLC. Eliminating the largest cement particles during the grinding/separation process used in the production of the PLC allows PLC mixtures to have pore size distributions that are similar to those for OPC mixtures.