Effect of Hybrid FRP Confinement on Tin Slag Polymer Concrete Compressive Strength

This study investigates the strength enhancement of Tin Slag Polymer Concrete (TSPC) under hybrid GFRP and CFRP confinement in comparison with mono on TSPC circular short column samples. Hybrid FRP is prepared by wrapping followed both 1 layer using epoxy Sikadur 330 as matrix binders 50 mm overlap. Compression test was performed unconfined (TSPC-UC), (TSPC-GF), (TSPC-CF) (TSPC-HB) 1mm/ min loading rate. The results have revealed that ultimate strengths are 59.19 MPa 85.54 108.77 124.59 (TSPC-HB). corresponding compressive strain measured at 0.0300 0.0453 0.0398 0.0588 Stress versus curve has shown compared to TSPC-UC, externally strengthen sample GFRP, enhanced slight different behavior. TSPC-GF less larger while TSPC-CF provide but lower strain. However, TSPC-HB highest benefit from combined properties. Failure mode combination components failure (TSPC-GF TSPC-CF) rupture pattern delamination. this findings effect close expectation based literatures.