콘크리트 내부의 수분함유량 측정에 관한 실험적연구

• 영문명: An Experimental Study on Measure to Moisture Contents of Concrete
• 발행기관: 한국화재소방학회
• 저자명: 박원섭(Park, Won-Sup) 김흥열(Kim, Heung-Youl) 김형준(Kim, Hyung-Jun)
• 간행물 정보: 『한국화재소방학회 학술대회논문집』2008년도 추계학술논문발표회 논문집, 428~433쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2008.11.30

영문 초록

The strength capacity properties of concrete are much influenced by water content which has a significant effect on concrete spalling, especially, in high temperature areas. Therefore, the properties of the material's shall be closely examined first by measuring the water content in each material in order to analyze Concrete Fire Characteristics, and a reliable measuring method shall be presented in order to derive the following influence. The method used to measure the water content within concrete is mainly divided into 4 types; ASTM method, Nuclear Magnetic method, Ultrasonic measurement method, Radio Wave method, etc. It is essential to use a reliable measuring method for each experiment. In this experiment, we measured the water content and humidity of concrete by two methods; Relative/Absolute humidity method using VISALA HM44 measuring equipment which is easily measurable compared with other methods regardless of the shape of the experimental model, and a water content measuring experiment using ASTM C 566. If the aggregates are under the condition that their surface is dry but in saturation, there is no change of water content according to concrete curing methods. However if the aggregates are absolutely dry, the water content is significantly changed according to concrete curing methods.