염분의 결정화 현상이 석재 내구성에 끼치는 영향

• 발행기관: 대한자원환경지질학회
• 저자명: 김성수 박형동
• 간행물 정보: 『자원환경지질』32권 2호, 203~208쪽, 전체 6쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1999.04.30

영문 초록

The main objective of this study is to suggest a new assessment method of the influence of weathering due to salt crystallization on the engineering property of rock. For this purpose, various sources of salt and salt crystallization were investigated, and artificially accelerated weathering tests were carried out. In natural envionment, weathering rate is very slow and weathering process involves complex mechani는. Therefore artificial weathering test is essential for systematic analysis. Arificial weathering test is defined as test which controls weathering rate and agents by controlling arificial environmental condition. In this study, salt crystallization test was selected among various artificial weathering test methods, for its important role in weathering. Change of various stone properties were detexted. The change of physical properties by salt crystallization were observed as follows : 72% in Brazilian tensile strength and 72% in Slake durability. These results explain the importance of salt crystallization in the mechanical behaviour and properties of stone.

키워드

염분 결정화 석재,내구성 풍화 해수 부피팽창 수화 삼투압 efflorescence suvflorescence 물성변화 탄성파