resarПриродные ресурсы Арктики и СубарктикиArctic and Subarctic Natural Resources2618-97122686-9683Академия наук Республики Саха (Якутия)10.31242/2618-9712-2025-30-3-510-520resar-1061Research ArticleМатериаловедение и химические технологииMaterials science and chemical technologiesПрочность и электропроводность бетонных композитов, модифицированных оксидом графенаMechanical strength and electrical conductivity of concrete composites enhanced with graphene oxidehttps://orcid.org/0000-0003-2360-7983ЛеповВ. В.LepovV. V.

Лепов Валерий Валерьевич, доктор технических наук, главный научный сотрудник

ResearcherID: F-9875-2011,Scopus Author ID: 6508081764

г. Якутск

Lepov, Valeriy Valerievich, Dr. Sc. (Eng.), Chief Researcher

ResearcherID: F-98752011, Scopus Author ID: 6508081764

Yakutsk

wisecold@mail.ruhttps://orcid.org/0000-0001-9639-7601ПоповД. Н.PopovD. N.

Попов Дмитрий Николаевич, инженер лаборатории инновационных технологий «Север»; аспирант 

Scopus Author ID: 58879397600

г. Якутск

Popov, Dmitry Nikolaevich, Engineer of Innovative Technologies Laboratory “Sever”; Post-graduate Student

Scopus Author ID: 58879397600

Yakutsk

dmiitryy09@gmail.comАнисимовA. С.AnisimovA. S.

Анисимов Андрей Сергеевич, аспирант

г. Якутск

Anisimov, Andrey Sergeevich, Post-graduate Student

Yakutsk

bspaladin@yandex.ruИнститут физико-технических проблем Севера им. В.П. Ларионова СО РАНРоссияLarionov Institute of the Physical-Technical Problems of the North, Siberian Branch of the Russian Academy of SciencesRussian FederationСеверо-Восточный федеральный университет им М.К. АммосоваРоссияAmmosov North-Eastern Federal UniversityRussian Federation202506102025303510520Copyright © Лепов В.В., Попов Д.Н., Анисимов A.С., 20252025Лепов В.В., Попов Д.Н., Анисимов A.С.Lepov V.V., Popov D.N., Anisimov A.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://resar.elpub.ru/jour/article/view/1061

Создание и применение так называемых умных, многофункциональных и гибридных материалов является одним из актуальных направлений современного материаловедения. В работе приведены результаты механических испытаний, исследований микроструктуры, оценки электрофизических свойств, а также стохастического моделирования разрушения образцов из бетонного композита, модифицированного переработанным вторичным сырьем в виде восстановленного оксида графена. Работы проведены с целью создания материалов повышенной прочности и с заданной электропроводностью. Дан обзор исследований в области создания и моделирования процессов разрушения гибридных материалов. Приведены подходы к оценке напряженного состояния и обосновано применение концепции зоны предразрушения и структурного размера для описания процессов разрушения в квазихрупких материалах. Показано, что высокие прочностные свойства и электропроводность графена позволяют существенно улучшить характеристики гибридного композита при незначительной концентрации модификатора. Образцы для испытаний были изготовлены с добавлением 0,2 и 0,5 мас.% оксида графена. Для исследования структуры и состава использовались электронная сканирующая растровая микроскопия и инфракрасная спектроскопия. Механические испытания показали, что добавление восстановленного оксида графена вызывает увеличение прочности на 48 % при содержании всего 0,5 мас.% оксида графена и снижение электрического сопротивления до 550–600 Ом, при этом снятие нагрузки восстанавливает прежние значения проводимости. Установлено, что модификация бетона графеном улучшает как электрические, так и механические характеристики. Подобные гибридные материалы могут быть применены в системах мониторинга состояния конструкций, самонагревающихся элементах, при заземлении электроопор, с целью повышения надежности и безопасности эксплуатации энергетических комплексов и технических систем в экстремальных климатических условиях Арктики и Субарктики.

The development and application of “smart”, multifunctional, and hybrid materials are among the most significant areas of modern materials science. This article presents the results of mechanical testing, microstructural analysis, evaluation of electrophysical properties, and stochastic modeling of the failure of samples made from a concrete composite reinforced with recycled secondary materials in the form of reduced graphene oxide. The aim of this work was to create materials with increased strength and a given electrical conductivity. An overview of research on the creation and modeling of failure processes in hybrid materials is provided. Approaches for assessing stress states are presented, and the use of the concept of the pre-fracture zone and structural scale to describe failure processes in quasi-brittle materials is justified. It has been shown that the high strength and electrical conductivity properties of graphene can significantly enhance the characteristics of a hybrid composite material with a low concentration of modifier. Concrete samples were prepared with graphene oxide mass fractions of 0.2% and 0.5%. Structural and chemical characterizations were conducted via scanning electron microscopy and infrared spectroscopy. Mechanical testing demonstrated that the inclusion of reduced graphene oxide at 0.5% concentration increased strength by 48% and decreased electrical resistance to 550–600 ohms, with conductivity values reverting to baseline upon load removal. These findings suggest that graphene modification significantly enhances the electrical and mechanical performance of concrete composites. Therefore, these hybrid materials hold considerable potential for use in structural health monitoring systems, selfheating elements, grounding electrodes, and for improving the reliability and safety of energy infrastructure and engineering systems, especially those functioning in harsh Arctic and Subarctic environments.

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