Experimental and numerical investigation of recycled rubber foam concrete

Processing waste tires into rubber granules for secondary use can effectively alleviate the problem of environmental pollution. Therefore, this paper prepares foam concrete by replacing cementitious materials with recycled rubber granules to recycle resources. The dry density, water absorption, cubi...

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Main Authors: Yongcheng Ji, Qijun Sun
Format: Article
Language:English
Published: Elsevier 2023-08-01
Series:Alexandria Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S111001682300529X
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author Yongcheng Ji
Qijun Sun
author_facet Yongcheng Ji
Qijun Sun
author_sort Yongcheng Ji
collection DOAJ
description Processing waste tires into rubber granules for secondary use can effectively alleviate the problem of environmental pollution. Therefore, this paper prepares foam concrete by replacing cementitious materials with recycled rubber granules to recycle resources. The dry density, water absorption, cubic compression, and prismatic flexure tests are carried out with the foam admixture and rubber substitution rate as the test parameters to study the effects of foam admixture and rubber substitution rate on the performance of foam concrete. Using Monte Carlo method simulation and non-linear fitting, a numerical analysis model was developed to predict recycled rubber foam concrete's mechanical properties. The ABAQUS finite element simulation method was used to explore the changes in the stress–strain relationship and damage development of the recycled rubber foam concrete, combined with microscopic observation, SEM, and XRD tests to reveal the specimens' damage mechanism, microscopic morphology, and physical structure. The experimental results show that the foam admixture has a more significant effect on the specimens' dry density, water absorption, and strength index than the effect of the rubber replacement rate. In addition, the strength prediction model, strength conversion model, and uniaxial compression finite element model of recycled rubber foam concrete were established.
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spelling doaj.art-e54248c9b198488c89141f466b4aa3a82023-08-19T04:31:44ZengElsevierAlexandria Engineering Journal1110-01682023-08-0176573594Experimental and numerical investigation of recycled rubber foam concreteYongcheng Ji0Qijun Sun1Corresponding author.; School of Civil Engineering and Transportation, Northeast Forestry University, Harbin 150040, ChinaSchool of Civil Engineering and Transportation, Northeast Forestry University, Harbin 150040, ChinaProcessing waste tires into rubber granules for secondary use can effectively alleviate the problem of environmental pollution. Therefore, this paper prepares foam concrete by replacing cementitious materials with recycled rubber granules to recycle resources. The dry density, water absorption, cubic compression, and prismatic flexure tests are carried out with the foam admixture and rubber substitution rate as the test parameters to study the effects of foam admixture and rubber substitution rate on the performance of foam concrete. Using Monte Carlo method simulation and non-linear fitting, a numerical analysis model was developed to predict recycled rubber foam concrete's mechanical properties. The ABAQUS finite element simulation method was used to explore the changes in the stress–strain relationship and damage development of the recycled rubber foam concrete, combined with microscopic observation, SEM, and XRD tests to reveal the specimens' damage mechanism, microscopic morphology, and physical structure. The experimental results show that the foam admixture has a more significant effect on the specimens' dry density, water absorption, and strength index than the effect of the rubber replacement rate. In addition, the strength prediction model, strength conversion model, and uniaxial compression finite element model of recycled rubber foam concrete were established.http://www.sciencedirect.com/science/article/pii/S111001682300529XRecycled rubber foam concreteMechanical propertiesNumerical analysisFinite element modelConstitutive equation
spellingShingle Yongcheng Ji
Qijun Sun
Experimental and numerical investigation of recycled rubber foam concrete
Alexandria Engineering Journal
Recycled rubber foam concrete
Mechanical properties
Numerical analysis
Finite element model
Constitutive equation
title Experimental and numerical investigation of recycled rubber foam concrete
title_full Experimental and numerical investigation of recycled rubber foam concrete
title_fullStr Experimental and numerical investigation of recycled rubber foam concrete
title_full_unstemmed Experimental and numerical investigation of recycled rubber foam concrete
title_short Experimental and numerical investigation of recycled rubber foam concrete
title_sort experimental and numerical investigation of recycled rubber foam concrete
topic Recycled rubber foam concrete
Mechanical properties
Numerical analysis
Finite element model
Constitutive equation
url http://www.sciencedirect.com/science/article/pii/S111001682300529X
work_keys_str_mv AT yongchengji experimentalandnumericalinvestigationofrecycledrubberfoamconcrete
AT qijunsun experimentalandnumericalinvestigationofrecycledrubberfoamconcrete