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충남대학교

충남대학교 건설재료시공학연구실

Building material & construction lab.

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프린트 확대 축소

국내전문학술

이계혁, 김규용, 이보경, 김래환, & 신경수. (2015). 알파반수석고를 활용한 비소성결합재 기반 바닥 모르타르의 경화특성 및 건조수축 평가. 한국건축시공학회지, 15(4), 359-365.
이계혁, 김규용, 이보경, 김래환, & 신경수. (2015). 알파반수석고를 활용한 비소성결합재 기반 바닥 모르타르의 경화특성 및 건조수축 평가. 한국건축시공학회지, 15(4), 359-365.
작성자 관리자
조회수 85 등록일 2015.08.01
주저자 이계혁
교신저자 042-821-7731
공동저자 이보경, 김래환, 신경수
학술지명 한국건축시공학회
Abstract
 
Floor mortar experiences dry shrinkage by temperature and humidity difference of internal matrix with material
type. Also, since floor mortar is influenced by environmental conditions during placing and curing period, cracks are
likely to be occurred. In this study, it was evaluated the hardening and dry shrinkage properties of non-sintered binder
based floor mortar utilizing alpha-hemihydrate gypsum which has expansibility in order to prevent crack of the floor
mortar. It was applied to the construction site, and examined the effects of external environmental conditions on
shrinkage deformation and cracking. Different types of slag accelerated initial and final setting in comparison with
cement mortar and its compressive strength was satisfied standard compressive strength for floor mortar. Also
shrinkage deformation behavior after the initial expansion exhibited a similar tendency with the cement mortar. From
the field application result, no crack was found from slag mortar, and it is determined that the slag mortar has better
dimensional stability than cement mortar caused by external environment conditions.