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논문 기본 정보

자료유형
학술저널
저자정보
Yong-Hyok Kim (Korea South-East Power) Cho-Bum Park (Eugene) Byoung Il Choi (Korea Shipbuilding & Offshore Engineering) Tae Yong Shin (Korea Advanced Institute of Science and Technology) Yubin Jun (Korea Advanced Institute of Science and Technology) Jae Hong Kim (Korea Advanced Institute of Science and Technology)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.14 No.4
발행연도
2020.7
수록면
617 - 625 (9page)

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초록· 키워드

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The high water-absorption of lightweight aggregate causes a high slump loss and poor workability of concrete. A prewetting process is usually recommended to compensate for the workability problem, but its application needs more delicate consideration in field. A method is proposed to measure the additional water absorption of lightweight aggregate, and its application in cement paste and concrete mixes confirms the absorption amount remaining unaffected by the mix proportion. The additional water absorption in cement-based materials can be considered as a material property, and its value is smaller than the water absorption measured by a standard test method (watersoaking). Compensating the additional water absorption finally allows to use dry lightweight aggregates for concrete, which is more robust and stabler than taking a saturated surface-dry lightweight aggregates.

목차

Abstract
1. Introduction
2. Methods and Materials
3. Results and Discussion
4. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2020-532-001098654