The rule of mixtures (ROM) method is often used to estimate the tensile strength of fiber reinforced polymers (FRPs) reinforcing bars (rebars). Generally, the ROM method predicts the FRP rebars’ modulus of elasticity adequately but overestimates their tensile strength. This may result from defects occurred during manufacture that prevent the used materials from exhibiting a sound performance an...

This paper presents a numerical study of the structural behaviour of concrete bridge deck slabs under static patch loads and dynamic traffic loads and an investigation of compressive membrane action (CMA) inside slabs. Those deck slabs were reinforced with Glass Fibre Reinforced Polymer (GFRP) bars. Non-linear finite element analysis (NLFEA) models were established using ABAQUS 6.10 software pa...

Fibre Reinforced Polymer (FRP) bars are effective alternatives to steel bars. This paper performs the shear evaluation of geopolymer concrete beams reinforced with Glass (G) / Basalt (B) FRP Glass/ stirrups. Totally nine GFRP/BFRP/Steel size 100 × 160 1700 mm were cast in geopolymer/conventional and tested by varying ratio span an depth such as 3.6, 3.9, 4.3 a four-point static bending test. Th...

The deflection of concrete beams reinforced with GFRP bars is higher than those which are reinforced with steel bars. The purpose of this paper is to propose a new equation for estimating the effective moment of inertia in FRP-reinforced concrete beams. This will be accomplished by using experimental results and the genetic algorithm approach. Genetic algorithm is used for optimizing the error ...

Reinforced concrete (RC) beams may require flexural strengthening due to the corrosion of reinforcing bars or changes in design load. The near surface mounted (NSM) and externally bonded (EB) techniques, using either glass carbon fibre-reinforced polymer (GFRP CFRP) composites, are used for deficient RC beams. However, strengthened with both techniques susceptible debonding failure FRP composit...

–The paper presents the results of a study on the performance of Glass Fibre Reinforced Polymer (GFRP) wrapped high strength concrete columns under uni-axial compression. The columns had slenderness ratios of 8, 16, 24 and 32. Three types of wrap materials (Chopped Strand Mat GFRP, Uni-Directional Cloth GFRP and Woven Roving GFRP) were used with 3 mm and 5 mm thicknesses. The columns were teste...

One of the main disadvantages steel bars is rebar corrosion, especially when they are exposed to aggressive environmental conditions such as marine environments. suggested ways solve this problem use composite bars. However, these ambiguous due some weaknesses, low modulus elasticity and linear behavior in tensile tests. In research, effect hybridization process on mechanical behavior, includin...

OBJECTIVE In our previous study, glass-fiber-reinforced plastics (GFRPs) made from polycarbonate and glass fibers were prepared for esthetic orthodontic wires using pultrusion. These laboratory GFRP wires are more transparent than the commercially available nickel-titanium wire; however, an investigation of the color stability of GFRP during orthodontic treatment is needed. Accordingly, in the ...

Several efforts were made over the years to control vibration of structural components made of composite materials. This paper consists of study on effect of using shape memory alloy (SMA) to increase the damping of glass fiber reinforced plastic (GFRP) composites. A comparative study between SMA and steel was made as reinforcement material in GFRP composites to enhance damping. Dimensions of e...