CONCRETE

UDC 691.328.34:691.358.44

[:ru]Пухаренко Ю. В.[:en]Pukharenko, Yu.[:] [:ru]д. т. н., проф., Санкт-Петербургский государственный архитектурно-строительный университет, Санкт-Петербург, Россия[:en]Dr. Eng. Sc., prof., Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg[:]

[:en]Panteleev D. A.[:ru]Пантелеев Д. А.[:] [:en]Candidate of Engineering Sciences, Associate Professor, Federal State Budgetary Educational Institution of Higher Education “Saint Petersburg State University of Architecture and Civil Engineering, St. Petersburg, Russia[:ru]канд. техн. наук, доцент, ФГБОУ ВО «Санкт-Петербургский государственный архитектурно-строительный университет», Санкт-Петербург, Россия[:]

[:en]Zhavoronkov M. I.[:ru]Жаворонков М. И.[:] [:en]Candidate of Engineering Sciences, Associate Professor, Federal State Budgetary Educational Institution of Higher Education “Saint Petersburg State University of Architecture and Civil Engineering, St. Petersburg, Russia[:ru]канд. техн. наук, доцент, ФГБОУ ВО «Санкт-Петербургский государственный архитектурно-строительный университет», Санкт-Петербург, Россия[:]

Alitinform №2 (67) 2022 г. 20-27 p.

Abstract

The issues of using low-modulus synthetic micro- and macrofiber for dispersed reinforcement of foam concrete of different densities are considered. The results of testing the power and energy characteristics of the crack resistance of fiber foam concrete are presented. An analysis of the deformation diagrams constructed during testing of the crack resistance of foam concrete samples reinforced with low-modulus synthetic microfiber “Fibrin XT” and macrofiber “Durus S500” is given.
The article is published based on the results of the research work carried out as part of the competition for research grants by scientific and pedagogical workers of SPbGASU (Federal State Budgetary Educational Institution of Higher Education «Saint Petersburg State University of Architecture and Civil Engineering») in 2022, as well as with the support of the world-class scientific and educational center “Russian Arctic: new materials, technologies and research methods”.

Key words:

fiber foam concrete, crack resistance, deformation diagram, synthetic fiber