coal mine supporting rock bolt

1.light weight 2.high strength 3.anti-corrosion 4.diameter from 6-40mm 5.different screw

Corrosion resistant frp rebar

     Corrosion resistant frp rebar are by combining the pultrusion process and an inline winding and coating process for the outside sand surface.

Features and Benefits:

 Corrosion-resistance: will not rust, and are impervious to the action of salt ions, chemicals, and the alkalinity inherent in concrete;High tensile strength: better than steel bar.(480-1000MPa);Lightweight: weigh approximately one-quarter the weight of an equivalent size steel bar, The density is 1.5-1.9g/cm³;High bond strength: thermal expansion coefficient is close to cement, better than steel bar in concrete;Electromagnetic neutrality: contain no metal, and will not interfere with the operation of sensitive electronic devices such as medical MRI units or electronic testing devices;Thermal insulator: highly efficient in resisting heat transfer, such as from building exteriors to interiors;Excellent Fatigue Resistance: performs very well in cyclic loading situations.

 

Product performance:

Project	Glass fiber reinforced	Basalt fiber reinforced
Exterior	Surface thread / surface blasting	Surface thread / surface blasting
Diameter (mm)	3—32	3—32
Density (g/cm³)	1.5—2.0	1.9—2.1
Tensile strength (MPa)	≥550	≥700
Modulus of elasticity (GPa)	30—41	≥45
Alkali resistance (%)	≥75	≥75

Application:Widely used in the construction of roads, bridges, airports , docks and other surface tendon ; station, water conservancy , underground engineering and other fields .Apply to the corrosive environment of sewage treatment plants, chemical plants, electrolyzers , coastal defense works .Applies to military engineering , security engineering , special projects need the insulation off the magnetic environment .

coal mine supporting rock bolt