High Strength Fiber Reinforced Polymer Bolts

High Strength Fiber Reinforced Polymer Bolts

High-strength fiberglass anchor is a new type of composite material. It is different from other bolts and consists of fiberglass backing plate, fiberglass nut, steel backing plate and steel nut as well as other connecting parts. Our fiberglass anchors can be used to anchor structural elements to concrete. Due to its own characteristics, this bolt is widely used and can be seen in many fields.

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Product Description

Jiufu fully threaded resin anchor glass fiber reinforced rod body is formed by heating and solidifying glass fiber yarn, resin and curing agent. The shape of the rod body is fully threaded from the appearance, and the rotation direction of the thread is to the right. Common colors of the rod include white, yellow, green, black, etc.Conventional specifications are 16mm, 18mm, 20mm, 22mm, and 24mm. (We can customize the length and diameter according to your requirements). The main purpose is to strengthen rock mass. It can be used for coal mine tunnel protection, anchor support of underground projects such as mines and railways, tunnels, and anchor support of slopes such as railways and highways. Compared with traditional bolts, it has the following characteristics:

1. Light rod body: The weight of fiberglass anchor rods is only one-quarter of the mass of steel anchor rods of the same specification.

2. Strong corrosion resistance: Resistant to rust, acid and alkali.

3. Simple operation method: High safety factor.

Composition

FRP anchors are fully threaded resin anchor rods made of high-strength glass fibers, resins and curing agents that change properties, and are compounded by pultrusion and winding. Glass fiber yarn is the main component material of FRP anchors and is the main strength provider. With the components such as trays and nuts, the anchor rod is formed. The accessories include all-glass nuts, all-glass pallets, plastic nuts, and plastic pallets.

Technical Information
Solid Bar
Physical Properties				Mechanical Properties(T)			Mechanical Properties(P)
OD	Nominal Dia.	Nominal CSA	pitch	Temporary	Ultimate Tensile Load	Ultimate Tensile Strength	Permanent	Ultimate Tensile Load	Ultimate Tensile Strength
(mm)	(mm)	(mm2)	(mm)	Resin/Glass	(kn)	(MPa)	Resin/Glass	(kn)	(MPa)
20	16	200	10	PE/ECR	200	1000	VE/ECR	200	1000
22	18	250	10	PE/ECR	250	1000	VE/ECR	250	1000
25	21	350	10	PE/ECR	350	1000	VE/ECR	350	1000
32	27	580	10	PE/ECR	560	960	VE/ECR	560	960
Hollow Bar
Physical Properties				Mechanical Properties(T)			Mechanical Properties(P)
OD	Nominal Dia.	Nominal CSA	pitch	Temporary	Ultimate Tensile Load	Ultimate Tensile Strength	Permanent	Ultimate Tensile Load	Ultimate Tensile Strength
(mm)	(mm)	(mm2)	(mm)	Resin/Glass	(kn)	(MPa)	Resin/Glass	(kn)	(MPa)
25×12	N/A	250	10	PE/ECR	180	720	VE/ECR	220	880
28×12	N/A	350	10	PE/ECR	260	740	VE/ECR	320	900
32×15	N/A	365	10	PE/ECR	280	765	VE/ECR	350	1000
38×20	N/A	500	10	PE/ECR	400	800	VE/ECR	500	1000

Installation

1. Use appropriate drilling tools (electric hammer available). For concrete structures, the selection criteria for drilling tools are the same as for adhesive anchors.

2. Control the embedding length and smooth the holes. Length control is extremely important because anchor performance is extremely length-sensitive. Recommended embedment length is 75 to 150 mm.

3. Use a combination of purge and brush cycles to clean the holes as this is critical to achieving maximum bond strength. The cleaning process for fiberglass spikes and adhesive anchors is similar. It is recommended to perform at least two cleaning cycles.

4. Prepare and install anchor bolts. This involves three different processes.

4.1: Cut fiber bundles or ropes to desired length. The length of the anchor must be equal to the embedded length (or pin length) plus the length of the anchor fan.

4.2: Use a soft brush to impregnate the anchor pin with low viscosity epoxy primer. Always respect the pot life of the resin, according to the manufacturer. Each anchor requires approximately 150 grams of resin. Impregnation requires partial fanning of fiber bundles to maximize resin penetration.

4.3: Attach the rebar to the anchor bolts to ensure the connector has a proper transfer mechanism.

Advantages

1. Antistatic and anti-flame retardant (mostly used with flame-retardant double-resistance net, used in coal seams with good underground conditions).

2. Non-corrosive and resistant to chemicals, acids and oils.

3. Does not conduct electricity.

4. High tensile and shear strength.

5. Easy to install: The installation process is simple, which is beneficial to production safety and improves production efficiency.

6. The anchor rod is light, easy to install and construct, reduces labor intensity, has a high safety factor and saves transportation costs.

High Strength Fiber Reinforced Polymer Bolts