Low Carbon Concrete Prepared with Scattering-Filling Coarse Aggregate Process

Weiguo Shen; Chuan Zhang; Xinling Li; Hua Shi; Guiming Wang; Xiaowu Tian

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자료유형: 학술저널

저자정보: Weiguo Shen (Wuhan University of Technology) Chuan Zhang (Wuhan University of Technology) Xinling Li (Wuhan University of Technology) Hua Shi (Wuhan University of Technology) Guiming Wang (Wuhan University of Technology) Xiaowu Tian (Wuhan University of Technology)

저널정보: 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.8 No.4

발행연도: 2014.12

수록면: 309 - 313 (5page)

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The volume fraction of the coarse aggregate in the conventional plastic concrete is controlled relatively low to ensure a required workability. In this paper, a new type of coarse aggregate interlocking concrete with strength ranging from C30 to C80 was prepared with scattering-filling aggregate process. The strength of concrete prepared with this method increases obviously whereas the shrinkage decreases significantly, the cement dosage in the concrete decreased 20 % at the same time. The microhardness of the ITZ between the cement paste and scattering-filling aggregate is higher than that of the original aggregate, the ITZ become narrower and tighter also. The interlocking and more even distribution of the coarse aggregate and the water absorption of the addition of extra amount of coarse aggregates contribute to the strength and performance improvement of the concrete prepared with scattering-filling aggregate process.

#coarse aggregates #scattering-filling aggregate process #aggregate interlocking concrete #strength #shrinkage #interfacial transition zone

참고문헌 (19)

참고문헌 신청

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