Reply to Zhou et al.'s “A discussion of the paper “Dynamic microstructural evaluation of hardened cement paste during first drying monitored by 1H NMR relaxometry””

Following the discussion by C. Zhou, X. Zhang, and Z. Wang (2020), the fast exchange model is applied to quantify the gel pore size and interlayer distance under drying. The water vapor Brunauer–Emmett–Teller surface area and amount of interlayer water are used for the surface relaxivity and the cha...

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Bibliographic Details
Published in:Cement and concrete research 2020-11, Vol.137, p.106219, Article 106219
Main Authors: Maruyama, Ippei, Ohkubo, Takahiro, Haji, Tatsuto, Kurihara, Ryo
Format: Article
Language:English
Subjects:
Calcium-silicate-hydrate (C-S-H)
Cement paste
Drying
Interlayers
Microstructure
NMR
Nuclear magnetic resonance
Pore size
Pore size distribution
Porosity
Water vapor
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Summary:Following the discussion by C. Zhou, X. Zhang, and Z. Wang (2020), the fast exchange model is applied to quantify the gel pore size and interlayer distance under drying. The water vapor Brunauer–Emmett–Teller surface area and amount of interlayer water are used for the surface relaxivity and the changes in gel pore size and interlayer spacing were quantified. The obtained changes of gel pore size, interlayer distance, and interlayer spaces under different RH conditions correspond well to the Kelvin equation.
ISSN:0008-8846
1873-3948
DOI:10.1016/j.cemconres.2020.106219