Utilisation of crumb tire rubber in development of sustainable metakaolin based high strength concrete

[Display omitted] •Compressive strength more than 60 MPa is feasible with 20% crumb rubber in HSC.•Improved compressive toughness in metakaolin based HSC with crumb tire rubber.•Loss of modulus of elasticity in metakaolin based HSC including crumb rubber.•SonReb method can be used to estimate compre...

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Bibliographic Details
Published in:Construction & building materials 2022-08, Vol.345, p.128412, Article 128412
Main Authors: Singh Sidhu, Amandeep, Siddique, Rafat
Format: Article
Language:English
Subjects:
Air voids
Compressive strength
Density
High strength concrete (HSC)
Metakaolin
Microstructural analysis
SonReb method
Split tensile strength
Stress- strain relationship
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Summary:[Display omitted] •Compressive strength more than 60 MPa is feasible with 20% crumb rubber in HSC.•Improved compressive toughness in metakaolin based HSC with crumb tire rubber.•Loss of modulus of elasticity in metakaolin based HSC including crumb rubber.•SonReb method can be used to estimate compressive strength for crumb rubber HSC. Environmental protection necessitates induction of 3R (recycle, reuse, reduce) principle into the construction sector. The study investigated fresh, strength properties, and SEM/XRD analysis of high strength concrete containing 15% metakaolin and crumb rubber up to 30% as sand replacement upto 90 days. SonReb method was used to determine relationship of Ultrasonic Pulse Velocity and Rebound Hammer tests with compressive strength. Results indicate loss of workability, density, compressive strength, split tensile strength and modulus of elasticity but improved ductility at 20% crumb rubber replacement which depicted highest toughness index. Equation derived from SonReb method predicted compressive strength with reliable accuracy.
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2022.128412