Frp Prestressed Cfrp Lamina - China

Glass fiber reinforced plastic (GFRP) is a kind of fiber reinforced composite material (Fi-berReinforcedPolymer referred to as FRP).

Fiber reinforced composite material is a material formed by high-performance fiber, synthetic resin matrix and curing agent using appropriate molding process; high-performance fiber is the reinforcing material and synthetic resin is the matrix material.

Fiber has high tensile strength and is the main provider of strength of fiber reinforced composite materials.

It mainly bears loads and is mainly divided into carbon fiber, aramid fiber, basalt fiber, glass fiber, etc.

The matrix material has the function of bonding and transmitting shear force, and its physical properties can affect the physical properties of fiber reinforced materials.

Appearance: The shape of GFRP bar should be threaded, the surface texture of the threaded rod should be uniform, without bubbles and cracks, and the thread tooth shape and pitch should be neat and should not be damaged.

Resin matrix: It is recommended to use vinyl resin and epoxy resin or a mixed resin of vinyl resin and epoxy resin for the resin matrix.

When using unsaturated resin (o-phthalic resin, isophthalic resin) to produce glass fiber reinforcement, due to the erosion of the alkaline environment, the mechanical properties will deteriorate significantly.

For example, if placed in alkaline liquid for about a month, the tensile strength may drop by more than 30%.

Pay attention to this problem during construction.

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

Specifications: The nominal diameter range should be 10 mm to 36 mm.

The recommended nominal diameter specifications of commonly used GFRP reinforcements are 20 mm, 22 mm, 25 mm, 28 mm and 32 mm.

The overall dimensions, allowable deviations and straightness of GFRP reinforcements should meet the requirements of the following table.

Characteristics of glass fiber reinforcement:

① High load-bearing capacity, strong tensile strength, the rod strength is twice that of threaded steel bars of the same diameter, but the mass is only 1/4 of that of steel bars;

② Stable elastic modulus, about 1/3 to 2/5 of that of steel bars;

③ Electrical insulation, thermal expansion coefficient is closer to cement than steel bars;

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

⑤ Low shear strength, ordinary shear strength is only 50 to 60 MPa, with excellent cutting performance.

Scope of application

Due to the characteristics of glass fiber reinforcement, it is widely used in subway underground continuous walls, road and railway foundation protection, building protection and other fields.

Company Contact:

• Posted By: Hebei Runlin Environmental protection Technology Co., LTD

• Phone: 13373517291

• Address: Xingyuan South Street, Zaoqiang County, Hengshui , Hebei , China

• Email:

• Website: https://www.hbrunlinhb.com/

• Business Description: Hebei Runlin Environmental Protection Technology Co., Ltd is located in Zaoqiang County, Hebei Province FRP production base -- the company was founded in 2009 (formerly known as Zaoqiang Xingda FRP Products Factory), the company was expanded in 2015 to establish a joint-stock company, The company is located in Zaoqiang County small and medium-sized science and technology Industrial Park, the registered capital of 10 million yuan, the production workshop area of 13,000 square meters, is a high-tech enterprise, specialized special small and medium-sized enterprises, high-tech smes, innovative smes, with a number of product patents.
  
  Annual production capacity of more than 18 million yuan.
  
  Is a professional company specializing in the production, installation and sales of FRP products, and scientific research, design, production, testing, sales, installation and after-sales service in one of the science and technology enterprises.
  
  FRP winding series: FRP sand pipe, FRP air pipe, FRP jacking pipe, BWFRP braided winding cable pipe, FRP storage tank, septic tank and other winding products
  
  Environmental protection equipment series: Fiberglass desulfurization tower, absorption tower, purification tower, ammonia nitrogen blowing tower, fiberglass biological deodorization box and other waste gas treatment equipment
  
  Fiberglass pultrusion series: cable bridge, square pipe, round pipe, plate, sewage filler and other profiles
  
  FRP molding series: SMC combination water tank, septic tank, cable bracket and other molding process products
  
  FRP hand paste series: FRP arch cover plate, standard and shaped pipe fittings, rectangular air pipe, custom non-standard products, anti-corrosion engineering
  
  FRP shaping equipment: FRP cooling tower, FRP fan, etc