Study on Polymer-Modified Concrete for Improving Flexural Toughness

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This paper studies how polymer alters the flexural toughness of concrete. By selecting five different types of polymer mixing into concrete; results indicate that polymer has obvious effect to enhance toughness of concrete evaluated by toughness index T. Microstructure of polymer-modified concrete were studied through environment scanning electron microscope, digital micro-hardness tester and nanoindentor, results indicate that polymer form the ionic compounds and reduce the crystallization of Ca (OH) 2, acting as a flexible filler and reinforcement in concrete. Polymer also alters the microstructure at the aggregatecement interfacial transition zone.

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2815-2819

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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