Publication: Mechanical Experiments on Concrete with Hybrid Fiber Reinforcement for Structural Rehabilitation
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
19961944
Rights Holder(s)
Scopus
Bibliographic Citation
International Journal of Automotive and Mechanical Engineering. Vol 19, No.3 (2022), p.9950-9963
Suggested Citation
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. International Journal of Automotive and Mechanical Engineering. Vol 19, No.3 (2022), p.9950-9963. doi:10.3390/ma15082828 Retrieved from: https://hdl.handle.net/20.500.14740/9560
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. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.