Drying and Pore Structure of Steam-Cured Concrete Products
By A. Toriumi, Y. Hara, K. Uji and A. Ueno

Concrete Journal, Vol.58, No.11, Nov. 2020


Synopsis
Prior research by the authors established the fact that steam-cured concrete undergoes drying during steam curing, especially during the cooling stage, and that this drying causes the pore structure of the concrete surface layer to become coarse. Further, the prior research suggests that water sprinkling during steam curing suppresses the drying of concrete during steam curing and allows the concrete surface layer to develop a dense pore structure. In the present study, we reexamined this in light of new findings. As a result, we found that the use of water sprinkling during steam curing does affect the pore structure of the concrete surface layer, and that this effect actually extends to the pore structure inside the concrete.
Keywords:
Steam curing, Drying, Pore structure, Strength characteristics, Carbonation

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