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Title: The features of the hydration and structure formation process of modified low-clinker binders // Magazine of Civil Engineering. – 2021. – № 3 (103). — С. 10302
Creators: Zhakipbekov Sh. K.; Aruova L. B.; Toleubayeva Sh. T.; Ahmetganov T. B.; Utkelbaeva A. O.
Imprint: 2021
Collection: Общая коллекция
Subjects: Строительство; Строительные материалы и изделия; modified binders; hydration processes; calcium hydrosilicates; physico-chemical studies; mining-processing plants; enrichment waste; cements; модифицированные связующие; процессы гидратации; гидросиликаты кальция; физико-химические исследования; горно-обогатительные комбинаты; отходы обогащения; цементы
UDC: 691
LBC: 38.3
Document type: Article, report
File type: PDF
Language: English
DOI: 10.34910/MCE.103.2
Rights: Свободный доступ из сети Интернет (чтение, печать, копирование)
Record key: RU\SPSTU\edoc\67126

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Group: Anonymous

Network: Internet

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The effect of a complex additive consisting of silica fume and enrichment waste from the Karagailinsky mining and processing plant on the hydration and structure formation processes of cement systems is investigated. It was established that the introduction of a complex modifying additive consisting of silica fume and enrichment waste from the Karagailinsky mining and processing plant into the cement composition CEM I 42,5 N SR increases the compressive strength at the age of 28 days by 15,7-28 %. It was revealed that the studied complex additives contribute to an increase in the amount of chemically bound water. The processes of hydration and hardening of multicomponent modified binders were investigated. It is shown that the high strength of cement stone on a modified binder is due to the formation of stable low-base hydro silicates. The source of the formation of low-base calcium hydro silicates is the pozzolanic reaction, which proceeds with the binding of the clinker minerals released during hydration, portlandite silica complex additive. It is shown that purposefully changing the composition of the binder and hydration conditions, it is possible to improve the phase composition, morphology of hydrates and influence its final properties.

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Table of Contents

  • The features of the hydration and structure formation process of modified low-clinker binders
    • 1. Introduction
    • 2. Research methods
    • 3. Results and Discussion
    • 4. Сonclusion

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