Abrasion Resistance of Cement Mortar with Different Pozzolanic Compositions and Matrices
Publication: Journal of Materials in Civil Engineering
Volume 23, Issue 2
Abstract
Abrasion of concrete occurs due to scraping, rubbing, skidding, or sliding of objects on its surface. The abrasion resistance of concrete is influenced by a number of factors, such as compressive strength, surfacing finish, aggregate properties, types of hardeners, and curing. The main objective of this study is to determine the effects of the pozzolanic compositions and matrix structure (or voids) on the abrasion resistance of cement mortars. In this study, the mortars produced with cement samples with seven different compositions and varied with an air-entraining agent were subjected to the abrasive effects. Several examples of mortars were evaluated using samples cured for six different periods throughout 1 year. This study is supported by thin section investigations, in addition to being subjected to the basic tests, such as compression, flexure, and abrasion. The Bohme apparatus was used during abrasion tests. To summarize the most important findings from this study, a compact cement matrix is more effective against abrasive effects than mineral additives.
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Acknowledgments
This study is supported by Karadeniz Technical University (Project No. UNSPECIFIED2006.118.001.4). We thank the Trabzon Askale Cement Factory for providing the laboratory facilities.
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Published In
Journal of Materials in Civil Engineering
Volume 23 • Issue 2 • February 2011
Pages: 138 - 145
Copyright
© 2011 ASCE.
History
Received: Sep 8, 2009
Accepted: Jun 30, 2010
Published online: Jul 2, 2010
Published in print: Feb 2011
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