Acknowledgement
본 논문은 2020년 한국연구재단의 기초연구지원사업(과제번호: 2020R1F1A104824111)의 일환으로 수행된 연구임을 밝히며 이에 감사를 드립니다.
Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)
- 2020.11a
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- Pages.147-148
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- 2020
A Study on the 3D Imaging of High Temperature Heating Cement Paste and the Analysis of Variation of the Pore Structure
고온 가열 시멘트 페이스트의 3D 영상화 및 세공구조 변화 분석에 관한 연구
- Published : 2020.11.12
Abstract
In case of high temperature damage such as fire, the durability of concrete is reduced due to the collapse of internal pore tissue. Therefore, in this paper, we are going to analyze the pore structure of cement paste hardening agent using MIP analysis and build up 3D data produced using X-ray CT tomography. The test specimen is made of cement paste from W/C 0.4. As the temperature of heating increased, the amount of air gap and the diameter of air gap in cement paste increased. It is judged that the air gap structure inside cement collapsed due to the evaporation of the hydrate, gel count, capillary water, etc. inside the cement due to the high temperature.