Effect of Hybrid FRP Confinement on Tin Slag Polymer Concrete Compressive Strength
Muhamad Soffi Manda1, Mohd Ruzaimi Mat Rejab2, Shukur Abu Hassan3, Mat Uzir Wahit4
1Muhamad Soffi Manda, Department of Mechanical Engineering, Polytechnic Sultan Haji Ahmad Shah (POLISAS), 25350 Semambu, Kuantan, Pahang, Malaysia.
2Mohd Ruzaimi Mat Rejab, Structural Performance Material Engineering (SUPREME), Faculty of Mechanical & Automotive Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia.
3Shukur Abu Hassan, Centre for Advanced Composites (CACM), Universiti Teknologi Malaysia (UTM), 81310 UTM Skudai, Johor Bahru, Johor, Malaysia.
4Mat Uzir Wahit, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), 81310 UTM Skudai, Johor Bahru, Johor, Malaysia.
Manuscript received on 27 May 2023 | Revised Manuscript received on 10 June 2023 | Manuscript Accepted on 15 June 2023 | Manuscript published on 30 June 2023 | PP: 119-126 | Volume-12 Issue-5, June 2023 | Retrieval Number: 100.1/ijeat.E41960612523 | DOI: 10.35940/ijeat.E4196.0612523
Open Access | Editorial and Publishing Policies | Cite | Zenodo | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This study investigates the strength enhancement of Tin Slag Polymer Concrete (TSPC) under hybrid GFRP and CFRP confinement in comparison with mono GFRP and CFRP confinement on TSPC circular short column samples. Hybrid FRP confinement is prepared by wrapping TSPC with GFRP, followed by CFRP, both in a single layer using epoxy Sikadur 330 as the matrix binder, with a 50 mm overlap. Compression test was performed on unconfined TSPC (TSPC-UC), TSPC with GFRP confinement (TSPC-GF), TSPC with CFRP confinement (TSPC-CF) and TSPC with hybrid FRP confinement (TSPC-HB) with 1mm/ min loading rate. The test results have revealed that the ultimate strengths are 59.19 MPa (TSPC-UC), 85.54 MPa (TSPC-GF), 108.77 MPa (TSPC-CF) and 124.59 MPa (TSPC-HB). The corresponding compressive strain measured at ultimate compressive strength is 0.0300 (TSPC-UC), 0.0453 (TSPC-GF), 0.0398 (TSPC-CF) and 0.0588 (TSPC-HB). The stress versus strain curve has shown that, compared to TSPC-UC, externally strengthened samples with GFRP, CFRP, and Hybrid FRP have enhanced TSPC strength with slightly different behaviour. TSPC-GF exhibits less strength enhancement with larger strain, while TSPC-CF provides larger strength enhancement but at a lower strain. However, TSPC-HB has demonstrated the highest strength enhancement, with a larger strain benefit resulting from the combined properties of GFRP and CFRP. The failure mode of hybrid FRP confinement on TSPC (TSPC-HB) exhibits a combination of both FRP component failure modes (TSPC-GF and TSPC-CF), as indicated by the rupture pattern and delamination. The results of this study provide findings on the effect of hybrid FRP confinement on TSPC circular column samples, aligning with expectations based on the existing literature.
Keywords: TSPC, Hybrid FRP Confinement, Compression, Stress versus Strain, Failure Modes.
Scope of the Article: Concrete Engineering