Phase composition of high strength binding material based on fine microspherical highcalcium fly ash material based on fine microspherical highcalcium fly ash
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URI (для ссылок/цитирований):
https://doi.org/10.1016/j.conbuildmat.2019.04.201https://elib.sfu-kras.ru/handle/2311/129190
Дата:
2019-08Журнал:
Construction and Building MaterialsКвартиль журнала в Scopus:
Q1Квартиль журнала в Web of Science:
Q1Библиографическое описание:
Sharonova, O. M. Phase composition of high strength binding material based on fine microspherical highcalcium fly ash material based on fine microspherical highcalcium fly ash [Текст] / O. M. Sharonova, V. M. Kirilets, V. V. Yumashev, L. A. Solovyov, A. G. Anshits // Construction and Building Materials. — 2019. — Т. 216. — С. 525-530Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Аннотация:
The combination of factors was established for using high-calcium fly ash (HCFA) as a binder material of high early and long-term strength: (1) high dispersity of microspherical HCFA, 90% <10μm; (2) the positive effect of polycarboxylate superplasticizer, that allowed to use water / binder=0.25; (3) formation of finely mixed hydrate phases such as portlandite, ettringite, calcium carboaluminate hydrates and cryptocrystalline calcium hydrosilicates. X-ray powder diffraction quantitative phase analysis of initial HCFA and hydration products in high-strength specimens was performed, which contributes to understanding phase transformations of HCFA during hydration and to improving the properties of the binder.