Influence of Composite C-S-H Seed Prepared by Wet Grinding on High-Volume Fly Ash Concrete DOI Creative Commons

S.H. Wang,

Jianan Liu, Yaogang Tian

и другие.

Buildings, Год журнала: 2025, Номер 15(2), С. 270 - 270

Опубликована: Янв. 18, 2025

In order to reduce the production cost of preparing C-S-H seeds (C-seeds) by wet grinding cement, this paper prepares a composite C-seed mixing cement and silica fume (SF) in six proportions. Adding high-volume fly ash (FA) concrete would improve insufficient early strength type concrete. The properties different C-seeds, as well their effects on mechanical properties, hydration characteristics microstructure concrete, were assayed XRD, SEM TG. As results show, can contribute formation promoting cement. ratio (C/S) decreases, particle size gradually volume CH decreases increases first, but when C/S is less than 4/6, it significantly. After was added, compressive (CS) at 1 d 28 significantly improved. CS decreased following decrease ratio; however, increased d. decreased, porosity with added d, making structure denser. NMR TG show that C-seeds values greater 4:6 have more pronounced effect

Язык: Английский

Influence of Composite C-S-H Seed Prepared by Wet Grinding on High-Volume Fly Ash Concrete DOI Creative Commons

S.H. Wang,

Jianan Liu, Yaogang Tian

и другие.

Buildings, Год журнала: 2025, Номер 15(2), С. 270 - 270

Опубликована: Янв. 18, 2025

In order to reduce the production cost of preparing C-S-H seeds (C-seeds) by wet grinding cement, this paper prepares a composite C-seed mixing cement and silica fume (SF) in six proportions. Adding high-volume fly ash (FA) concrete would improve insufficient early strength type concrete. The properties different C-seeds, as well their effects on mechanical properties, hydration characteristics microstructure concrete, were assayed XRD, SEM TG. As results show, can contribute formation promoting cement. ratio (C/S) decreases, particle size gradually volume CH decreases increases first, but when C/S is less than 4/6, it significantly. After was added, compressive (CS) at 1 d 28 significantly improved. CS decreased following decrease ratio; however, increased d. decreased, porosity with added d, making structure denser. NMR TG show that C-seeds values greater 4:6 have more pronounced effect

Язык: Английский

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