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충남대학교

충남대학교 건설재료시공학연구실

Building material & construction lab.

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국내전문학술

유재철, 김규용, 이상규, 황의철, & 남정수. (2019). 모르타르의 동결융해 피해에 미치는 폴리프로필렌 섬유의 영향. 한국건설순환자원학회논문집, 7(4), 438-444.
유재철, 김규용, 이상규, 황의철, & 남정수. (2019). 모르타르의 동결융해 피해에 미치는 폴리프로필렌 섬유의 영향. 한국건설순환자원학회논문집, 7(4), 438-444.
작성자 관리자
조회수 179 등록일 2019.12.01
주저자 유재철
교신저자 042-821-7731
공동저자 김규용, 이상규, 황의철
학술지명 한국건설순환자원학회 논문집 제7권 제4호
In t his study, t he e f fect of polypropylene f iber o n the f reeze-thaw d amage of m ortar was evaluated e xperimentally. The effects of the reinforcing of polypropylene fiber on the compressive and bending performance of mortar after 300 cycles of freeze-thaw test were evaluated by comparing the normal mortar and the mortar with polyvinyl alcohol fiber. In addition, the mass loss, relative dynamic elastic modulus, and cumulated pore volume of mortar were measured by each cycle of freeze-thaw test. As a result, it was confirmed that the fiber reinforced mortar, regardless of the fiber type, was effective not only in maintaining the performance of the compressive strength and the bending strength but also suppressing the mass loss after the freeze-thaw test of 300 cycles. Meanwhile, it was confirmed that not only polyvinyl alcohol fibers but also p olypropylene f ibers can eff ectively a ct t o suppress the damage of the m ortar by f reeze-thaw. However, i n order to improve the freeze-thaw resistance of mortar mixed with polypropylene fiber, it is necessary to increase the bonding performance with the cement matrix which can be expected from polyvinyl alcohol fiber.