Morphology-structural change of C-A-S-H gel in blended cements
نویسندگان
چکیده
Pastes of white Portland cement (wPC) and wPC-30 % pulverized fuel ash (PFA), -60 ground granulated blast furnace slag (GGBS), -30 or 60 inert filler (anatase-type TiO2) blends were prepared to investigate the dominant factors for morphological change outer product (OP) C-A-S-H gel in blended systems. The OP SCMs-blended cements changes its morphology from fibrillar-like mixed fine-fibrillar/foil-like when Ca/(Si + Al) ratio < 1.30 Al/Si > 0.15. Meanwhile, has mean length aluminosilicate chain longer than 7– 8, which, [SiO4] bridging site occupancy factor (SOFBT) is higher 0.6 [AlO4] SOFBT 0.3. pore solutions show characteristics effective saturation index (ESI) CH −0.15 ESI jennite-based C-S-H 0.10. remains fibrillar throughout hydration.
منابع مشابه
Morphology of calcium silicate hydrate (C-S-H) gel: a molecular dynamic study
Dongshuai Hou PhD Candidate, Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong Hongyan Ma Post-doctoral Fellow, Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong Zongjin Li Professor, Department of Civil and Environmental Engineering, Hong Kong University of Science and Technolo...
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ژورنال
عنوان ژورنال: Cement and Concrete Research
سال: 2023
ISSN: ['0008-8846', '1873-3948']
DOI: https://doi.org/10.1016/j.cemconres.2023.107156