Publication: Structural behavior of RC one-way slabs strengthened with ferrocement and FRP composites
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Issued Date
2024-07-01
Resource Type
ISSN
13506307
Scopus ID
2-s2.0-85190822084
Journal Title
Engineering Failure Analysis
Volume
161
Rights Holder(s)
SCOPUS
Bibliographic Citation
Engineering Failure Analysis Vol.161 (2024)
Suggested Citation
Joyklad P., Krishna Gadagamma C., Maneengamlert B., Nawaz A., Ejaz A., Hussain Q., Saingam P. Structural behavior of RC one-way slabs strengthened with ferrocement and FRP composites. Engineering Failure Analysis Vol.161 (2024). doi:10.1016/j.engfailanal.2024.108328 Retrieved from: https://hdl.handle.net/20.500.14740/20201
Corresponding Author(s)
Other Contributor(s)
Abstract
Existing research lacks focus on the structural behavior of reinforced concrete (RC) one-way slabs reinforced with ferrocement, and there's a notable absence of comparative studies between fiber-reinforced polymers (FRPs) and ferrocement strengthening methods for these slabs. Given the cost-effectiveness and widespread use of ferrocement in structural reinforcement, this study aimed to address these gaps through an experimental program. Three sizes of wire mesh, categorized as Type-I (small), Type-II (medium), and Type-III (large), were employed in this study. Chemical or mechanical anchors were used to attach ferrocement jackets. Moreover, 6, 12, or 18 anchors were used to assess the effect of anchor configuration. The goal was to enhance the structural performance of slabs and compare them with slabs reinforced using FRP jackets. The study focused on preventing debonding of the strengthening layers, employing either mechanical or chemical anchors. All slabs exhibited ductile failure with flexural cracks. The peak load and ultimate deflection were enhanced by up to 49.00% and 109.07%, respectively, by the application of ferrocement jackets, whereas the dissipated energy was increased by up to 174.00 %. Notably, the use of chemical anchors demonstrated a superior ability to delay debonding and enhance ductility compared to mechanical anchors. Slabs reinforced with glass FRP (GFRP) showed delayed debonding relative to carbon FRP (CFRP) reinforced slabs, indicating the superior performance of chemical anchors with GFRP layers. Moreover, the type and size of wire mesh significantly influenced performance, with small and medium-sized mesh configurations enhancing ductility, while large-sized mesh exhibited relatively earlier debonding. The orientation of the wire mesh also played a crucial role, with parallel orientation to the longitudinal axis of slabs yielding better performance.