Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and BuildingsСтроительная механика инженерных конструкций и сооружений1815-52352587-8700Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)3722510.22363/1815-5235-2023-19-5-534-547IYOMTOConstruction materials and productsСтроительные материалы и изделияResearch ArticleEffect of using 3D-printed shell structure for reinforcement of ultra-high-performance concreteЭффект от применения 3D-печатной оболочки для армирования сверхвысокопрочного бетонаhttps://orcid.org/0000-0002-0090-5745HematibaharMohammadМохаммадХематибахар

Ph.D. students

аспирант кафедры железобетонных и каменных конструкций

eng.m.hematibahar1994@gmail.comhttps://orcid.org/0000-0002-1196-8004VatinNikolai I.ВатинНиколай Иванович

D.Sc. (Eng.), Professor of the Higher School of Industrial Civil and Road Construction, Peter the Great St. Petersburg Polytechnic University

доктор технических наук, профессор высшей школы промышленно-гражданского и дорожного строительства

vatin@mail.ruhttps://orcid.org/0009-0009-5816-3009HamidTaheri JafariХамидТахери Джафари

Ph.D., Researcher at Department of Civil Engineering

научный сотрудник департамента гражданского строительства

hamidtahery2002@yahoo.co.ukhttps://orcid.org/0000-0002-7168-5786GebreTesfaldet H.ГебреТесфалдет Хадгембес

Ph.D. (Eng.), Researcher at the Department of Civil Engineering, Academy of Engineering

кандидат технических наук, ассистент департамента строительства инженерной академии

tesfaldethg@gmail.comMoscow State University of Civil EngineeringМосковский государственный строительный университетPeter the Great St. Petersburg Polytechnic UniversityСанкт-Петербургский политехнический университет Петра ВеликогоRUDN UniversityРоссийский университет дружбы народовRamsar Branch, Islamic Azad UniversityРамсарский архитектурный университет Азад15122023195VOL 19, NO5 (2023)ТОМ 19, №5 (2023)53454728122023Copyright ©; 2023, Hematibahar M., Vatin N.I., Hamid T.J., Gebre T.H.Copyright ©; 2023, Мохаммад Х., Ватин Н.И., Хамид Т.Д., Гебре Т.Х.2023Hematibahar M., Vatin N.I., Hamid T.J., Gebre T.H.Мохаммад Х., Ватин Н.И., Хамид Т.Д., Гебре Т.Х.https://creativecommons.org/licenses/by-nc/4.0https://journals.rudn.ru/structural-mechanics/article/view/37225

This study aims to investigate the effect of 3D-printed polymer shell reinforcemen ton ultra-high-performance concrete. The mechanical properties of ultra-high-performance polymer reinforced concrete have been investigated. At first, the 3D-printed shell reinforcements were designed using 3D Max and Rhino 6 software. Then, each was fabricated through the fused deposition modeling method and positioned into the cubic, cylindrical, and prismatic molds. In the next step, the prepared Ultra-High-Performance Concrete mixture was poured into the molds, and the samples were cured for 28 days. Finally, the compressive, tensile, and flexural strength tests were carried out on the samples. The results indicated that the compressive, tensile, and flexural strengths of reinforced samples were lower than that of the unreinforced ones, respectively. Although including 3D-printed reinforcement decreased the mechanical properties of the Ultra-High-Performance Concrete samples, it changed the fracture mechanism of concrete from brittle to ductile.

Объект исследования - это сверхвысокопрочный бетон с оболочечной 3D-печатной полимерной арматурой. Экспериментально исследованы механические свойства полимерно-армированного бетона. 3Dпечатные арматурные оболочки были созданы в 3D Max и Rhino 6, изготовлены методом наплавленного осаждения и помещены в кубические, цилиндрические и призматические опалубочные формы. Экспериментально исследована прочность на сжатие, растяжение и изгиб. Прочности армированных образцов оказалась меньше, чем неармированных, но включение 3D-печатной арматуры изменило механизм разрушения бетона с хрупкого на вязкий.

Fused Deposition Modelingmechanical propertiesfracture mechanismмоделирование наплавлениеммеханические свойствамеханизм разрушенияThis research was funded by the Ministry of Science and Higher Education of the Russian Federation within the framework of the state assignment No. 075-03-2022-010 dated 14 January, 2022 and No. 075-01568-23-04 dated 28 March 2023 (Additional agreement 075-03-2022-010/10 dated 09 November 2022, Additional agreement 075-03-2023-004/4 dated 22 May 2023), FSEG2022-0010.Исследование выполнено при финансовой поддержке Министерства науки и высшего образования РФ в рамках государственного задания № 075-03-2022-010 от 14.01.2022 г. и № 075-01568-23-04 от 28.03.2023 года (Дополнительное соглашение 075-03-2022-010/10 от 09.11.2022 г., Дополнительное соглашение № 075-03-2023-004/4 от 22.05.2023 г.), FSEG2022-0010.Xu Y., Šavija B. Development of strain hardening cementitious composite (SHCC) reinforced with 3D printed polymeric reinforcement: Mechanical properties. 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