Deformability of dispersed reinforced expanded clay concrete under load
https://doi.org/10.33979/2073-7416-2025-119-3-120-128
Abstract
The article is devoted to the study of the deformation and destruction characteristics of expanded clay concrete dispersively reinforced with fibers. The article presents the test results of expanded clay concrete samples reinforced with high-modulus basalt fiber, as well as low-modulus synthetic micro- and macrofiber. The article considers the experimental data on the strength and energy characteristics of crack resistance of fiber expanded clay concrete samples, obtained experimentally in accordance with the provisions of GOST 29167-2021 «Concrete. Methods for determining crack resistance characteristics (fracture toughness) under static loading». It was found that reinforcement with low-modulus synthetic macrofibers can lead to an increase in the strength of expanded clay concrete, and a more significant one even in comparison with reinforcement with high-modulus basalt fibers. However, achieving this strength will be accompanied by significant deflections.
Keywords
fiber concrete,
expanded clay concrete,
crack resistance,
fracture toughness,
deformation,
critical stress intensity factor,
strength
Supporting agencies: This article is published based on the results of research supported by the 2025 grant from Saint Petersburg State University of Architecture and Civil Engineering (SPbGASU).
About the Authors
Yu. V. Pukharenko
Federal State Budgetary Educational Institution of Higher Education «Saint Petersburg State University of Architecture and Civil Engineering»
Russian Federation
Russian Federation
Pukharenko Yury V. - Doctor of Technical Sciences, Professor, Consulting Professor of the Department of Technology of Building Materials and Metrology,
St. Petersburg.
D. A. Panteleev
Federal State Budgetary Educational Institution of Higher Education «Saint Petersburg State University of Architecture and Civil Engineering»
Russian Federation
Russian Federation
Panteleev Dmitrii A. - Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Technologies of Building Materials and Metrology,
St. Petersburg.
M. I. Zhavoronkov
Federal State Budgetary Educational Institution of Higher Education «Saint Petersburg State University of Architecture and Civil Engineering»
Russian Federation
Russian Federation
Zhavoronkov Mikhail I. - Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Technologies of Building Materials and Metrology,
St. Petersburg.
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Review
For citations:
Pukharenko Yu.V., Panteleev D.A., Zhavoronkov M.I. Deformability of dispersed reinforced expanded clay concrete under load. Building and Reconstruction. 2025;(3):120-128. (In Russ.) https://doi.org/10.33979/2073-7416-2025-119-3-120-128
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