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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.9 No.3
- 발행연도
- 2015.9
- 수록면
- 295 - 306 (12page)
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초록· 키워드
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Simulating natural leaching process for cementitious materials is essential to perform long term safety assessments of repositories for nuclear waste. However, the current test methods in literature are time consuming, limited to crushed material and often produce small size samples which are not suitable for further testing. This paper presents the results from the study of the physical (gas permeability as well as chloride diffusion coefficient) and mechanical properties (tensile and compressive strength and elastic modulus) of solid cementitious specimens which have been depleted in calcium by the use of a newly developed method for accelerated calcium leaching of solid specimens of flexible size. The results show that up to 4 times increase in capillary water absorption, 10 times higher gas permeability and at least 3 times higher chloride diffusion rate, is expected due to complete leaching of the Portlandite. This coincides with a 70 % decrease in mechanical strength and more than 40 % decrease in elastic modulus.
목차
Abstract
1. Introduction
2. Materials and Methods
3. Results and Discussions
4. Conclusions
References
참고문헌 (42)
참고문헌 신청
[학술지(정기간행물)] - F. Adenot / 1992 / Modelling of the corrosion of the cement paste by deionized water / Cement and Concrete Research 22 (2-3) : 489 ~ 496
[기타자료] - / / ASTM C39/C39M-14a, Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
[기타자료] - / / ASTM C496/C496M-11, Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens
[학술지(정기간행물)] - Babaahmadi, A. / 2015 / Development of an electro-chemical accelerated ageing method for leaching of calcium from cementitious materials / Materials and Structures
[학술지(정기간행물)] - U.R. Berner / 1992 / Evolution of pore water chemistry during degradation of cement in a radioactive waste repository environment / Waste Management 12 (2-3) : 201 ~ 219
[기타자료] - / / ASTM C39/C39M-14a, Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
[기타자료] - / / ASTM C496/C496M-11, Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens
[학술지(정기간행물)] - Babaahmadi, A. / 2015 / Development of an electro-chemical accelerated ageing method for leaching of calcium from cementitious materials / Materials and Structures
[학술지(정기간행물)] - U.R. Berner / 1992 / Evolution of pore water chemistry during degradation of cement in a radioactive waste repository environment / Waste Management 12 (2-3) : 201 ~ 219
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UCI(KEPA) : I410-ECN-0101-2016-532-001923739