Effect of pre-treated waste tire rubber on properties of concrete

In present day scenario the human activities have led to environmental degradation with increased urbanization contributing to many fold increase in constructing activities, which uses limited natural resources. Therefore, prevention of resource over-utilization and recycling of the waste is of utmo...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2023-08, Vol.1289 (1), p.12080
Main Authors: Sidhu, Amandeep Singh, Singla, Ritika, Siddique, Rafat
Format: Article
Language:English
Subjects:
Bonding
Compressive strength
Concrete properties
Contact angle
Electric contacts
Hydrophobicity
Natural resources
Permeability
Potassium permanganate
Rubber
Tires
Urbanization
Workability
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Summary:In present day scenario the human activities have led to environmental degradation with increased urbanization contributing to many fold increase in constructing activities, which uses limited natural resources. Therefore, prevention of resource over-utilization and recycling of the waste is of utmost priority in construction sector. Waste tires rubber is one such potential material which can be used in concrete as replacement for fine aggregates replacement. This study represents the effect of addition of crumb rubber in concrete as sand replacement ranging from 5-20% on volume basis. The study evaluated the workability, compressive strength, ultrasonic pulse velocity (UPV), electrical resistivity and water permeability at 28 days. Tire rubber was also pre-treated with NaOH and KMnO 4 as an effort to enhance its bonding characteristics. The contact angle was measure to test the efficacy of the treatment in reducing water hydrophobicity of crumb rubber. The treatment of tire rubber with NaOH and KMnO 4 proved to be promising in regaining some of lost compressive strength and improved water permeability. However, both treatment processes didn’t have any significant effect on the workability. The NaOH treatment proved to be an overall better treatment than KMnO 4 which was due to the reduced hydrophobicity as depicted by lower contact angle.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1289/1/012080