Processes of structure and phase formation of aerated concrete of non-autoclave hardening containing ferrosilicon as a gasifier-Reference-Cited by-同舟云学术

Processes of structure and phase formation of aerated concrete of non-autoclave hardening containing ferrosilicon as a gasifier

Published:2021-12 Issue:6 Volume: Page:45-50
ISSN:0321-4095
Container-title:Voprosy Khimii i Khimicheskoi Tekhnologii
language:
Short-container-title:Vopr. Khim. Khim. Tekhnol.

Author:

Musina A.O., ,Sihunov O.O.,Ryzhova O.P.,Sverdlikovska O.S.,Hura A.O., , , ,

Abstract

The paper deals with the structure and phase composition of non-autoclave aerated concrete with a density of 600–800 kg m–3 using ferrosilicon as a gasifier. The conditions of formation of porous structure of aerated concrete and preparation of calcium hydrosilicates were considered. Phase composition of the samples was investigated by means of X-ray phase analysis and differential thermal analysis. Analysis of X-ray patterns showed that the test samples contained tobermorite 11.3 Å (5CaO6SiO25.5H2O), xonotlite (6CaO6SiO2H2O) and -dicalcium silicate hydrate (2CaOSiO2H2O) as a binder. It was established that there is an increase in the content of hydrosilicate phases with an increase in the content of gasifier in the vast majority of cases. The obtained data were confirmed by the results of differential thermal analysis.

Publisher

SHEI Ukrainian State University of Chemical Technology

Subject

Materials Chemistry,General Chemical Engineering,Environmental Chemistry,General Chemistry

Reference13 articles.

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5. 5. Musina AO, Sihunov OO, Kravchenko TV, Hura AO. Thermodynamic analysis of chemical reactions in the systems FeSi-Ca(OH)2-H2O and FeSi2-Ca(OH)2-H2O. Voprosy Khimii i Khimicheskoi Tekhnologii. 2019; (6): 136-143. doi: 10.32434/0321-4095-2019-127-6-136-143.

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