Polymer-modified Concrete with Improved Flexural Toughness and Mechanism Analysis
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2012年第3期
论文作者：曹擎宇 孙伟
文章页码：597 - 601
摘 要：By selecting different types of polymer mixing into concrete, the toughness of concrete is investigated, and results indicate polymer has obvious effect to improve the toughness of concrete. Microstructure of polymer-modified concrete were studied through environment scanning electron microscope and digital micro-hardness tester, results show that polymer acts as a flexible filler and reinforcement in concrete, and alters the microstructure at mortar and ITZ. By crack path prediction and energy consumption analysis, the crack path of polymer-modified concrete is more tortuous and consumes more energy than that of ordinary concrete.
曹擎宇1,2，孙伟1,2
1. College of Materials Science and Engineering, Southeast University2. Jiangsu Key Laboratory of Construction Materials
摘 要：By selecting different types of polymer mixing into concrete, the toughness of concrete is investigated, and results indicate polymer has obvious effect to improve the toughness of concrete. Microstructure of polymer-modified concrete were studied through environment scanning electron microscope and digital micro-hardness tester, results show that polymer acts as a flexible filler and reinforcement in concrete, and alters the microstructure at mortar and ITZ. By crack path prediction and energy consumption analysis, the crack path of polymer-modified concrete is more tortuous and consumes more energy than that of ordinary concrete.
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