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10.3390/ma15082828
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Article

Mechanical Experiments on Concrete with Hybrid Fiber Reinforcement for Structural Rehabilitation

by
Muhammad Asharib Shahid
1,
Muhammad Usman Rashid
1,
Nazam Ali
1,
Krisada Chaiyasarn
2,
Panuwat Joyklad
3,* and
Qudeer Hussain
4
1
Civil Engineering Department, University of Management and Technology, Lahore 54770, Pakistan
2
Thammasat Research Unit in Infrastructure Inspection and Monitoring, Repair and Strengthening (IIMRS), Thammasat School of Engineering, Faculty of Engineering, Thammasat University Rangsit, Pathum Thani 12000, Thailand
3
Department of Civil and Environmental Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhonnayok 26120, Thailand
4
Center of Excellence in Earthquake Engineering and Vibration, Department of Civil Engineering, Chulalongkorn University, Bangkok 10330, Thailand
*
Author to whom correspondence should be addressed.
Materials 2022, 15(8), 2828; https://doi.org/10.3390/ma15082828
Submission received: 18 February 2022 / Revised: 1 April 2022 / Accepted: 7 April 2022 / Published: 12 April 2022
(This article belongs to the Special Issue Feature Collection in Advanced Composites Section)
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Abstract

Reinforced concrete is used in the construction of bridges, buildings, retaining walls, roads, and other engineered structures. Due to seismic activities, a lot of structures develop seismic cracks. The rehabilitation of such structures is necessary for public safety. The overall aim of this research study was to produce a high-performance hybrid fiber-reinforced concrete (HPHFRC) with enhanced properties as compared to plain high-performance concrete and high-performance fiber-reinforced concrete (HPFRC) for the rehabilitation of bridges and buildings. Kevlar fibers (KF) and glass fibers (GF) with lengths of 35 mm and 25 mm, respectively, were added and hybridized to 1.5% by mass of cement to create hybrid fiber-reinforced concrete mixes. Eight mixes were cast in total. The compressive strength (f′c), flexural strength (fr), splitting tensile strength (fs), and other mechanical properties, i.e., energy absorption and toughness index values, were enhanced in HPHFRC as compared to CM and HPFRC. It was found that the concrete hybridized with 0.75% KF and 0.75% GF (HF-G 0.75 K 0.75) had the most enhanced overall mechanical properties, illustrating its potential to be utilized in the rehabilitation of bridges and structures.
Keywords: rehabilitation; Kevlar fibers (KF); glass fibers (GF); high-performance fiber-reinforced concrete (HPFRC) rehabilitation; Kevlar fibers (KF); glass fibers (GF); high-performance fiber-reinforced concrete (HPFRC)

Share and Cite

MDPI and ACS Style

Shahid, M.A.; Rashid, M.U.; Ali, N.; Chaiyasarn, K.; Joyklad, P.; Hussain, Q. Mechanical Experiments on Concrete with Hybrid Fiber Reinforcement for Structural Rehabilitation. Materials 2022, 15, 2828. https://doi.org/10.3390/ma15082828

AMA Style

Shahid MA, Rashid MU, Ali N, Chaiyasarn K, Joyklad P, Hussain Q. Mechanical Experiments on Concrete with Hybrid Fiber Reinforcement for Structural Rehabilitation. Materials. 2022; 15(8):2828. https://doi.org/10.3390/ma15082828

Chicago/Turabian Style

Shahid, Muhammad Asharib, Muhammad Usman Rashid, Nazam Ali, Krisada Chaiyasarn, Panuwat Joyklad, and Qudeer Hussain. 2022. "Mechanical Experiments on Concrete with Hybrid Fiber Reinforcement for Structural Rehabilitation" Materials 15, no. 8: 2828. https://doi.org/10.3390/ma15082828

APA Style

Shahid, M. A., Rashid, M. U., Ali, N., Chaiyasarn, K., Joyklad, P., & Hussain, Q. (2022). Mechanical Experiments on Concrete with Hybrid Fiber Reinforcement for Structural Rehabilitation. Materials, 15(8), 2828. https://doi.org/10.3390/ma15082828

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