constructionСтроительство и реконструкцияBuilding and Reconstruction2073-7416Орловский государственный университет имени И.С. Тургенева10.33979/2073-7416-2025-122-6-47-59construction-990Research ArticleБЕЗОПАСНОСТЬ ЗДАНИЙ И СООРУЖЕНИЙBUILDING AND STRUCTURE SAFETYСпецифика реакции бетона на воздействие высокой температурыSpecificity of concrete response to high temperatureФедоровВ. С.FedorovV. S.

Федоров Виктор Сергеевич, академик Российской академии архитектуры и строительных наук, докт. техн. наук, проф., заведующий кафедрой «Строительные конструкции, здания и сооружения»

г. Москва

Fedorov Viktor S., Academician of the Russian Academy of Architecture and Building Sciences, Doctor of Technical Sciences, Professor, Head of the Department of Building Construction, Buildings and Structures

Moscow

fvs_skzs@mail.ruЛевитскийВ. Е.LevitskyV. E.

Левитский Валерий Евгеньевич, , канд. техн. наук, доц., доцент кафедры «Строительные конструкции, здания и сооружения»

г. Москва

Levitsky Valery E., candidate in tech. sc., docent, associated prof. of the dep. of Building Construction, Buildings and Structures

Moscow

dobriy_vecher@mail.ruФГАОУ ВО «Российский университет транспорта»Russian University of Transport202515122025064759Copyright © Федоров В.С., Левитский В.Е., 20252025Федоров В.С., Левитский В.Е.Fedorov V.S., Levitsky V.E.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://construction.elpub.ru/jour/article/view/990

Данная статья является второй в цикле статей, посвященных обобщению и анализу многочисленных опубликованных материалов по исследованию термомеханических свойств бетона при высокотемпературном воздействии. В этой статье приведен обзор опытных данных, касающиеся исследования свойств бетона при кратковременном нагреве и предпринята попытка анализа и структурирования результатов многочисленных, разноплановых испытаний, касающиеся исследования свойств бетона при кратковременном высокотемпературном нагреве. Рассмотрена физика процесса деформирования бетона при нагреве и его причины. Отражена зависимость получаемых характеристик от условий испытаний. Показаны основные наиболее значимые факторы, оказывающие влияние на прочностные и деформативные характеристики бетона при нагреве. Развиты представления о механизмах термической деструкции и термосилового сопротивления бетона, подтвержденные специальными методами исследования бетона и его компонентов. Приводятся основные причины изменения прочностных и деформативных характеристик бетона при кратковременном высокотемпературном нагреве, при этом акцент сделан на выявление влияющих факторов и степени их влияния, а также на обобщение существующих трактовок деградационных механизмов.

This article is the second in a series devoted to summarizing and analyzing numerous published materials on the thermomechanical properties of concrete exposed to high temperatures. This article provides an overview of experimental data related to the study of concrete properties under shortterm heating and attempts to analyze and structure the results of numerous, diverse tests related to the study of concrete properties under short-term high-temperature heating. The physics of concrete deformation during heating and its causes are discussed. The dependence of the obtained characteristics on test conditions is demonstrated. The key factors influencing the strength and deformation properties of concrete during heating are highlighted. Concepts regarding the mechanisms of thermal degradation and thermal resistance of concrete are developed, supported by specialized methods for studying concrete and its components. The main causes of changes in the strength and deformation properties of concrete during short-term high-temperature heating are presented, with an emphasis on identifying the influencing factors and their degree of influence, as well as summarizing existing interpretations of degradation mechanisms.

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The authors declare that there are no conflicts of interest present.