CONCRETE

UDC 691. 965.2

[:en]Zhilkibayeva A. M.[:ru]Жилкибаева А. М.[:] [:en]master of science, PhD doctoral, Kazakh Leading Academy of Architecture and Civil Engineering, Almaty, Kazakhstan[:ru]канд. тех. наук, докторант, Казахская головная архитектурно-строительная академия, Алматы, Казахстан[:]

[:en]Yestemessova A. S.[:ru]Естемесова А. С.[:] [:en]candidate of technical sciences, associate professor, Kazakh Leading Academy of Architecture and Civil Engineering, Almaty, Kazakhstan[:ru]канд. тех. наук, ассоциированный профессор, Казахская головная архитектурно-строительная академия, Алматы, Казахстан[:]

[:en]Zhakipbekov Sh. K.[:ru]Жакипбеков Ш. К.[:] [:en]doctor of technical science, professor, Q.C. Manager \"Intereng-Almaty\" LLP, Almaty, Kazakhstan[:ru]д-р техн. наук, ТОО Intereng-Almaty, Казахстан[:]

[:ru]Матвеева Л. Ю.[:en]Matveeva, L. Yu.[:] [:ru]д.т.н., профессор, Санкт-Петербургский государственный архитектурно-строительный университет, г. Санкт-Петербург, Россия[:en]Doctor of Engineering, Full Professor, St. Petersburg State University of Architecture and Civil Engineering, St. Petersburg, Russia[:]

[:en]Morozov V. I.[:ru]Морозов В. И.[:] [:en]doctor of technical science, professor, Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia[:ru]д-р тех. наук, профессор, Санкт-Петербургский государственный архитектурно-строительный университет, Санкт-Петербург, Россия[:]

Alitinform №3 (64) 2021 г. 84-92 p.

Abstract

The influence of a complex mineral additive consisting of microsilica and wastes of enrichment of polymetallic ores of the Balkhash mining and processing plant on the processes of hydration and structure formation of tricalcium silicate (alite), the main mineral of cement clinker, has been investigated. The mineralogical composition of the hydration products of alite in the presence of a complex mineral additive was studied at various times of hardening from 3 to 28 days. The optimal dosage of a complex mineral additive in the composition of cement has been determined and the effectiveness of its effect on the degree of hydration of alite has been evaluated.

Key words:

complex mineral additive, microsilica, enrichment waste, alite, tri-calcium silicate, degree of hydration