Investigation on the stress-strain relationship of rubberized concrete under uniaxial compression

As urbanization progresses rapidly, addressing the disposal of waste tires has become an urgent global environmental concern. This research comprehensively examined how varying rubber proportions and particle dimensions impact the workability, axial compressive stress–strain response, splitting tens...

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Main Author: Jianfan Wang
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:Materials Research Express
Subjects:
Online Access:https://doi.org/10.1088/2053-1591/ada492
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author Jianfan Wang
author_facet Jianfan Wang
author_sort Jianfan Wang
collection DOAJ
description As urbanization progresses rapidly, addressing the disposal of waste tires has become an urgent global environmental concern. This research comprehensively examined how varying rubber proportions and particle dimensions impact the workability, axial compressive stress–strain response, splitting tensile resistance, and flexural capabilities of concrete, utilizing both experimental methods and theoretical assessments. Additionally, the energy dissipation properties of rubber-enriched concrete utilizing a toughness index and developed an analytical framework to predict the compressive stress–strain relationship in rubber-modified concrete were evaluated. When the rubber content was increased to 20%, it was observed that rubber reduced the workability and load-bearing capacity of concrete, with reductions of 44.7%, 26.9% and 30.5% in slump, peak stress and modulus of elasticity, respectively. The incorporation of rubber increased the peak strain of concrete, with the maximum increase reaching 26.2%. The ultimate deflection increased by about 8.0%. Meanwhile, the toughness index was found to increase, with an increase of about 36.8%. The established stress–strain analytical model can accurately predict the stress–strain behavior of rubberized concrete under axial compression. In summary, rubberized concrete shows significant potential in enhancing seismic performance in earthquake-prone regions, optimizing structural design, and addressing environmental issues related to waste tire disposal, aligning with sustainable development goals.
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spelling doaj-art-fefa4cb1f70745c99d1b7648413823382025-01-09T17:24:29ZengIOP PublishingMaterials Research Express2053-15912025-01-0112101550410.1088/2053-1591/ada492Investigation on the stress-strain relationship of rubberized concrete under uniaxial compressionJianfan Wang0https://orcid.org/0009-0003-8910-1261School of Urban and Rural Architecture, MinXi Vocational & Technical College , LongYan 364021, People’s Republic of ChinaAs urbanization progresses rapidly, addressing the disposal of waste tires has become an urgent global environmental concern. This research comprehensively examined how varying rubber proportions and particle dimensions impact the workability, axial compressive stress–strain response, splitting tensile resistance, and flexural capabilities of concrete, utilizing both experimental methods and theoretical assessments. Additionally, the energy dissipation properties of rubber-enriched concrete utilizing a toughness index and developed an analytical framework to predict the compressive stress–strain relationship in rubber-modified concrete were evaluated. When the rubber content was increased to 20%, it was observed that rubber reduced the workability and load-bearing capacity of concrete, with reductions of 44.7%, 26.9% and 30.5% in slump, peak stress and modulus of elasticity, respectively. The incorporation of rubber increased the peak strain of concrete, with the maximum increase reaching 26.2%. The ultimate deflection increased by about 8.0%. Meanwhile, the toughness index was found to increase, with an increase of about 36.8%. The established stress–strain analytical model can accurately predict the stress–strain behavior of rubberized concrete under axial compression. In summary, rubberized concrete shows significant potential in enhancing seismic performance in earthquake-prone regions, optimizing structural design, and addressing environmental issues related to waste tire disposal, aligning with sustainable development goals.https://doi.org/10.1088/2053-1591/ada492rubberized concreteworkabilityelastic moduluspeak strainenergy dissipationstress-strain relationship
spellingShingle Jianfan Wang
Investigation on the stress-strain relationship of rubberized concrete under uniaxial compression
Materials Research Express
rubberized concrete
workability
elastic modulus
peak strain
energy dissipation
stress-strain relationship
title Investigation on the stress-strain relationship of rubberized concrete under uniaxial compression
title_full Investigation on the stress-strain relationship of rubberized concrete under uniaxial compression
title_fullStr Investigation on the stress-strain relationship of rubberized concrete under uniaxial compression
title_full_unstemmed Investigation on the stress-strain relationship of rubberized concrete under uniaxial compression
title_short Investigation on the stress-strain relationship of rubberized concrete under uniaxial compression
title_sort investigation on the stress strain relationship of rubberized concrete under uniaxial compression
topic rubberized concrete
workability
elastic modulus
peak strain
energy dissipation
stress-strain relationship
url https://doi.org/10.1088/2053-1591/ada492
work_keys_str_mv AT jianfanwang investigationonthestressstrainrelationshipofrubberizedconcreteunderuniaxialcompression