Glass Fiber Rebar

(GFRP) is a fiber reinforced polymer (FRP)Fiber reinforced composite is a material formed by appropriate molding process of high-performance fiber, synthetic resin matrix and curing agent; high-performance fiber is thereinforcing material and synthetic resin is the matrix material. Fiber has high tensile strength and is the main provider of the strength of fiber-reinforced composite. It mainly plays the role of bearing load. It is mainly divided  into carbon fiber and aramid fiber Fiber, basaltic fiber, glass fiber, etc. the matrix material can bond and transfer shear, and its physical properties can affect the physical properties of fiber reinforced materials. 

Glass fiber rebar specs

● Appearance 
The shape of GFRP reinforcement should be in the form of thread. The surface texture of the threaded rod body should be uniform without bubbles and cracks. The thread tooth shape and pitch should be neat without damage. 

● Resin Matrix 
For resin matrix, it is recommended to use vinyl resin and epoxy resin or mixed resin of vinyl resin and epoxy resin. When unsaturated resin (o-benzene resin and m-benzene resin) is usedDuring the production of glass fiber reinforced bar, due to the erosion of alkaline environment, the research shows that the mechanical properties of glass fiber reinforced bar will deteriorate obviously. For example, if it is placed in alkaline liquid for about one month, the tensile strength may decrease by more than 30%. Attention should be paid to this problem in construction and use. 

● Density 
The density of GFRP reinforcement material shall be between 1.9 g / cm³ and 2.2g/cm³. 

● Specifications

The nominal diameter range of GFRP rebar should be 8 mm ~ 36 mm. It is recommended that the nominal diameter specifications of common GFRP Bars are 20 mm, 22 mm, 25 mm, 28 mm and 32 mm. The overall dimension, allowable deviation and straightness of GFRP Bars shall meet the requirements in the table below. Excellent mechanical properties: 

① High bearing capacity, strong tensile capacity, the strength of the rod body is twice that of the threaded reinforcement with the same diameter, but the quality is only 1 / 4 of that of the reinforcement;

② The elastic modulus is stable, about 1 / 3 ~ 2 / 5 of the reinforcement;

③ Electrothermal insulation, thermal expansion coefficient closer to cement than reinforcement;

④ Good corrosion resistance, suitable for use in wet or other corrosive environments such as water conservancy, bridges, wharfs and tunnels;

⑤ The shear strength is low, and the ordinary shear strength is only 50 ~ 60MPa, which has excellent cutting performance. 

As a professional glass fiber rebar supplier, Hesheng provides high quality glass fiber reinforced polymer bars, Alkali Resistant Glass Fiber and Electronic Glass Fiber Cloth. If you are looking for GFRP rebar for sale with factory supply price, welcome to contact us!

Performance index of glass fiber composite reinforcement 

Comparison between basalt composite reinforcement and ordinary reinforcement

Glass fiber reinforced (GFRP) rebar can replace rebar in concrete structures. Use can be temporary or permanent where high strength is required, risk of corrosion or avoidance or avoidance of electromagnetic field induced currents. Fiberglass reinforced bars are produced by a continuous process of pultrusion. Fibers used are high quality glass, polyester resin or vinyl ester resin with a typical fiber content of 75%.

Glass fiber rebar features

1. GFRP rebars are transparent to electric fields and radio frequencies
2. It is not affected by chloride ions and other chemical elements.
3. Fiberglass reinforcing bars can be manufactured in customized lengths, bends and shapes.
4. The installation process of glass fiber rebar is very convenient, coupled with its easy cutting and processing characteristics.
5. Projects reinforced with GFRP rebar require no maintenance, allowing builders to avoid repair costs.
6. The composition of GFRP includes high quality corrosion resistant vinyl ester resin, which can prolong the service life of concrete structures.
7. Compared with traditional reinforcing materials, the weight of glass fibre reinforcement bars is 1/4 of that of steel, and the tensile strength is 2 times that of steel.
8. GFRP rebar does not conduct electricity and conduct heat, making it ideal for facilities such as power plants and scientific facilities.
9. Considering the long-term benefits of GFRP rebar, it is a cost-effective product compared to epoxy coating or stainless steel.

Application structure

● Exposed structure
● Facade Panel
● Refurbish and Reinforce
● Infrastructure building
● Highway
● High speed track
● Precast concrete
● Tunnel section
● Mining
● Dam

Application scenarios

● Substation
● Collar
● Waterway engineering
● Temporary application (soft eye)
● Rail/apron using induction loop
● Research facility
● Base
● Industrial plants
● Balcony connection
● Sidewalk