Standard fiberglass rebar diameters include: Φ6mm, Φ8mm, Φ10mm, Φ12mm, Φ14mm, Φ16mm, Φ18mm, Φ20mm, Φ22mm, Φ25mm, Φ28mm, and Φ32mm. Common sizes range from Φ8 to Φ16mm....

Mechanical properties of fiberglass rebar: tensile strength ≥ 600MPa (some grades exceed 1000MPa), modulus of elasticity ≥ 40 GPa, elongation ≥ 2.0%, shear strength ≥ 80 MPa, flexural strength ≥ 300MPa. All specifications comply with GB/T 3....

Fiberglass rebar is easy to install: it can be cut with standard rebar cutters for a smooth finish. The minimum bending radius should be at least 5 times the bar diameter; use dedicated bending tools or heat-soften the material before bending. Fixing is done with tie wire or specialized clips, just like steel rebar. Do not weld directly; instead......

Fiber-reinforced polymer (FRP) rebars are widely used in: initial and permanent support for subway tunnels, deep foundation pit support, mine roadway reinforcement, slope protection, offshore platform foundations, anti-corrosion construction in chemical plants, wastewater treatment plant structures, bridge pier reinforcement, power facility foundations, MRI rooms in hospitals, and other applications sensitive to electromagnetic interference....

Fiberglass rebar offers exceptional corrosion resistance: it remains virtually unaffected in pH environments ranging from 2 to 12, and its salt spray corrosion resistance is over 10 times that of conventional steel rebar. Accelerated aging tests confirm that after 5000 hours of immersion in simulated seawater, strength retention remains above 95%....

Fiber-reinforced polymer (FRP) rebars offer excellent electrical insulation: volume resistivity ≥10¹² Ω·cm, surface resistivity ≥10¹³ Ω, and dielectric strength ≥15kV/mm, fully meeting the insulation requirements for various engineering projects. Ideal for applications such as subway track systems (to prevent stray current corrosion) and hospital MRI rooms (...

From a life-cycle cost perspective, fiberglass rebar offers superior overall value compared to steel: although the initial purchase price is slightly higher (approximately 20-40% more), the total cost is lower when considering the following factors: 1) No corrosion protection is required, saving on coating costs; 2) Weight is only 1/4 of steel, reducing transportation...

The design service life of fiberglass reinforcement bars is 50-100 years, depending on the application environment: over 100 years in general atmospheric conditions; 50-80 years in moderately corrosive environments (e.g., urban underground projects); and extended performance in highly corrosive environments (e.g., marine structures, chemical plants)....

Yes, but professional design determination is required under specific conditions. It effectively replaces steel reinforcement in environments requiring high corrosion resistance and electromagnetic insulation, such as shield tunneling zones for diaphragm walls, piers, breakwaters, and factory floors at chemical plants. However, its shear strength is only about one-tenth of its longitudinal strength, and its elastic modulus (approximately 40...

The unit price of GFRP bars is significantly higher than that of conventional steel bars and is not standardized. Costs depend on bar diameter, strength grade, resin type (e.g., alkali-resistant vinyl ester resin costs more), and order volume. Due to their weight being only one-quarter that of steel, pricing per ton offers poor value; they are typically priced by the linear meter based on......

This is reflected in four main aspects: 1) Physical properties: GFRP bars weigh only 1/4 of steel bars, have higher tensile strength (≥600MPa), but lower elastic modulus and shear strength. They are brittle materials with no yield plateau. 2) Corrosion resistance and electrical insulation: GFRP bars remain...

Cold bending on-site is not permitted. Due to the material's inherent brittleness, all bends must be performed in a heated mold at the factory, where fibers and resin bend and cure simultaneously. Cold bending on-site can cause internal fiber fracture and severe loss of strength. Therefore, stirrups and bent-up bars required for the project must be ordered from the manufacturer in advance....

Fiber-Reinforced Polymer (FRP) Rebar. It consists of continuous, high-strength fiberglass roving as the skeleton, impregnated with a matrix material such as vinyl ester or unsaturated polyester resin, and formed through pultrusion heating and curing. The fibers provide high axial strength, while the matrix bonds the fibers, transfers loads, and offers corrosion protection....

Nominal diameter typically ranges from 6mm to 40mm. Common engineering specifications include: 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm. Lengths are produced in fixed sizes, such as 6 meters and 12....

The density of GFRP rebar is approximately 1.9-2.2 g/cm³, so its theoretical weight is about 25% of that of steel rebar with the same volume. A simple estimation formula: W ≈ 0.002 × d² (W = weight per meter in kg/m, d = diameter in mm). For example, a 25mm diameter GFRP rebar weighs......

The core application is the portal area of a shield tunneling shaft. Here, an equal-strength GFRP rebar cage replaces traditional steel reinforcement. When the shield machine advances to this section, it can directly grind through the GFRP cage, eliminating the high-risk manual demolition of the portal and enabling safe, rapid shield launch or reception....

Due to differences in bond strength and surface characteristics between GFRP bars and concrete compared to steel reinforcement, their development and lap lengths are significantly greater. According to the "Technical Specification for Concrete Structures with GFRP Bars," the lap length typically ranges from 30 to 50 times the nominal diameter. Specific values must be determined through formula calculations, influenced by concrete strength and......

Multiple companies in China can manufacture these products, including Anhui Send New Material Technology Development Co., Ltd., which offers a full range of fiberglass rebar specifications and custom-shaped components....

In-stock sizes: Φ8mm, Φ10mm, Φ12mm, Φ14mm, Φ16mm, Φ18mm, Φ20mm, Φ25mm, Φ32mm. Lengths: 3m, 6m, 9m, 12m. Minimum order quantity (MOQ): Standard sizes start at 500 meters; custom sizes require 1000....

GFRP Rebar Reference Price: Φ8-Φ12mm approx. 15-25 CNY/m, Φ14-Φ20mm approx. 20-35 CNY/m, Φ22-Φ32mm approx. 25-45 CNY/m. Final pricing depends on specifications, quantity, and delivery schedule. Bulk purchase discount policy: Single order...

Standard Lead Time: In-stock items ship within 3-5 business days; custom items are produced in 7-15 business days. Rush Service: For urgent orders, we offer expedited production, reducing custom lead times to 5-7 business days with an additional rush fee of 10-15%. Large projects can be shipped in batches, starting with the first......

Payment Terms: We accept bank transfers, acceptance bills, letters of credit, and other settlement methods. Standard terms require a 30% deposit upon contract signing, 60% before shipment, and the remaining 10% balance after successful inspection. Long-term partners may apply for monthly settlement or extended payment terms. Warranty Period: The product warranty is valid for 2....

Packaging Standards: Secured on dedicated pallets with stretch wrap and corner protectors. Each bundle weighs no more than 500 kg for easy handling and transport. Wooden crates are added for long-distance shipping. Shipping Assurance: We maintain long-term partnerships with multiple logistics providers, offering end-to-end tracking. Any damage incurred during transit is covered by us at no cost to you....

Core mechanical properties of GFRP bars: characteristic tensile strength ≥ 600MPa (measured average up to 800-1000 MPa), elastic modulus ≥ 40 GPa (some high-strength grades exceed 50 GPa), ultimate elongation ≥ 2.0%, shear strength ≥ 80 MPa, flexural strength...

Corrosion Resistance: Maintains structural integrity with no visible corrosion during prolonged use within a pH range of 2-12. After 5000 hours of salt spray testing, strength retention is ≥95%. Following immersion in sulfuric acid solution (10% concentration) for 1000 hours, strength retention remains ≥90%. Immersion in sodium hydroxide solution (10% concentration) for 1000 hours......

Insulation performance specifications: Volume resistivity ≥ 10¹² Ω·cm, surface resistivity ≥ 10¹³ Ω, dielectric constant ≤ 6, dielectric strength ≥ 15kV/mm, and dissipation factor (tan δ) ≤ 0.02. Fully compliant with "Code for Design of Concrete Structures" (GB 50010) and "Code for Metro Design"....

Construction operability assessment: Cutting can be performed with standard rebar cutters or angle grinders for fast, clean cuts without special tools. Bending has a minimum radius of 5 times the bar diameter at room temperature and can be done using dedicated bending molds or by heating to 60-80°C before bending; no springback occurs after bending....

Applicable operating conditions: In foundation pit engineering, suitable for various types of foundation pit support at depths of 5–30 meters, including sheet pile walls, diaphragm walls, and soil nail walls. In tunnel engineering, applicable to initial support and secondary lining for metro tunnels, highway tunnels, and railway tunnels, especially in water-rich strata, weak surrounding rock, and expansive soils....

Standard FRP anchor rod specifications: diameters Φ16mm, Φ18mm, Φ20mm, Φ22mm, Φ25mm, Φ28mm, Φ32mm; lengths 1.5m, 2.0m, 2.5m, 3.0m, 3.5m, 4.0m, 5.0m, 6.0m. Threaded ends....

Fiberglass Anchor Mechanical Properties: Tensile strength ≥ 500MPa (high-strength models up to 600MPa), Shear strength ≥ 80 MPa, Bond strength ≥ 12 MPa, Elongation ≥ 2.0%. Tensile load capacity at the threaded end connection is not less than 90% of the rod body strength. All indicators comply with MT...

Drill hole diameter matching principle: The drill hole diameter should be 10 to 15 mm larger than the anchor bar diameter. Specific correspondences: Φ16 mm anchor bars require Φ28-30 mm drill holes; Φ18 mm anchor bars require Φ30-32 mm drill holes; Φ20 mm anchor bars require Φ32-35 mm drill holes; Φ22 mm anchor bars require......

Weight Comparison: For a Φ20mm×2.5m specification, the fiberglass anchor weighs approximately 1.2 kg, while a steel anchor of the same size weighs about 7.8 kg—just 1/6 to 1/7 of the steel anchor's weight. Installation Ease: Single-person handling and installation without lifting equipment; threaded end mates with nut....

Applicable Scenarios: Roof and rib support in coal mine roadways, particularly suited for high gas mines and outburst-prone mines with stringent safety requirements; metal mine roadway support, applicable to copper, iron, gold, and other types of mines; soft rock roadway support, designed for weak surrounding rocks such as mudstone, shale, and sandstone; fractured zone roadway support, ideal for......

Insulation Performance: Volume resistivity ≥ 10¹² Ω·cm; fully insulated with no electrochemical corrosion or interference to underground electrical equipment and communication signals. Corrosion Resistance: Maintains structural integrity in long-term use under humid mine conditions (relative humidity 80-95%) and acidic water environments (pH 4-6) with no visible degradation....

Aging Resistance: After accelerated aging tests simulating underground conditions (temperature 20-30°C, humidity 90%, weakly acidic water) for 3000 hours, the strength retention rate remains ≥90%. Design Service Life: In normal coal mine environments, the service life reaches 15-20 years; in highly corrosive......

Yes, the fiberglass rock bolts we manufacture for coal mines meet both flame-retardant and anti-static requirements. They achieve the non-flammable level specified in MT 1104 standards, with an afterglow time of ≤10 seconds after ignition is removed. Their surface resistivity is ≤3×10⁸ Ω, complying with anti-static regulations to effectively prevent static buildup that could trigger gas explosions....

Yes, our fiberglass rock bolts have obtained Mine Safety Approval (MA certification). The certification covers all specifications from Φ16 to Φ32 mm. Issued by the National Mining Product Safety Mark Center, the certificate is valid for 5 years and undergoes regular re-evaluation. Customers may request a copy of the certificate at the time of purchase or through the National Coal Mine Safety Certification Center....

Reference Price: Φ16-Φ20mm specs approx. 8-15 yuan/piece, Φ22-Φ25mm specs approx. 12-20 yuan/piece, Φ28-Φ32mm specs approx. 15-26 yuan/piece (standard length 2.5m). Final price determined by specifications, length, and quantity. Bulk discount: Single...

Standard Stock: Standard sizes (Φ18-Φ25mm, Length 2.0-3.0m) are kept in stock (5000-10000 units) for immediate shipment. Lead time for special sizes is 3-5 days. Standard lead time: 1-2 business days for standard sizes after order placement; 5-7 business days for special sizes....

Yes, it has become the mainstream alternative in coal mine roadways, particularly in side ribs and longwall face roadways. Its key advantage is cuttability: it can be severed directly by the shearer drum without damaging the cutting picks or generating sparks—a critical factor for safe production. Additionally, its corrosion resistance ensures long-term, stable support performance. However, in fractured rock masses with high in-situ stress......

Price depends on diameter, length, strength grade, and matching tray nuts. Quoted per set or per unit. Coal mine roof bolts require the MA safety certification for mining products, which adds to quality costs. For specific pricing, please contact Anhui Send New Material Technology Development Co., Ltd....

Common fully threaded equal-strength rods used in coal mines have nominal diameters of 16 mm, 18 mm, 20 mm, 22 mm, and 25 mm. Lengths vary based on roadway design, typically ranging from 1.5 meters to 3.0 meters....

Approximately 25% of the weight of a steel anchor bolt of the same specification. For example, with a diameter of 22 mm, the weight per meter is approximately 0.9-1.0 kg....

Regarding cuttability, the former is easy to cut, while the latter can damage mining equipment and may generate sparks. In terms of corrosion resistance, the former does not rust, whereas the latter is prone to rusting in the humid underground environment, leading to strength degradation. Regarding mechanical behavior, the former has high strength but is brittle with no yield point; the latter exhibits good elastic-plastic deformation capability, providing......

Tensile strength standard value of the rod material ≥ 400MPa, with high-strength variants reaching above 600MPa. Based on a diameter of 20mm, the ultimate tensile load of the rod shall not be less than 125kN....

Anhui Send New Material Technology Development Co., Ltd. is a professional manufacturer offering mine-grade fiberglass roof bolts compliant with MT/T 1061 standards and certified with the MA mark....

Beyond coal mines, it is used for temporary or permanent support in underground projects such as subways and tunnels. It is particularly suitable for corrosive groundwater environments, experimental chambers with precision instruments requiring electromagnetic interference protection, and anchor zones designed to facilitate later shield or TBM tunneling by enabling cuttable conditions....

Rod breakage or splitting typically occurs when excessive torque applied by the nut exceeds the rod's transverse torsional strength. Insufficient anchorage force is caused by uneven mixing of resin cartridges, insufficient curing time, or a mismatch between the rod and borehole wall clearance. Tail thread damage results from the torque sleeve not being fully seated or from off-axis loading that twists the threads....

Includes: resin cartridge, high-strength composite tray (or steel tray), torque nut, quick-install connector, and self-aligning washer....

Common Specifications: Outer Diameters Φ25mm, Φ28mm, Φ32mm, Φ38mm, Φ42mm; Inner Diameters Φ10mm, Φ12mm, Φ15mm, Φ18mm, Φ20mm; Lengths 2.0m, 2.5m, 3.0m, 3.5m, 4.0m, 5.0m...

Tensile strength: ≥550MPa (some high-strength models reach 650MPa); Modulus of elasticity: ≥40 GPa; Elongation: ≥2.0%. Pressure resistance: withstands grouting pressures of 0.5–2.0 MPa without deformation or rupture; maximum pressure resistance up to 3.0MPa. Hollow wall thickness is uniform....

Drill hole size matching: Φ25 mm anchor bolts require Φ38-42 mm holes, Φ28 mm anchors require Φ42-45 mm holes, Φ32 mm anchors require Φ45-50 mm holes, Φ38 mm anchors require Φ50-55 mm holes, and Φ42 mm anchors require Φ55-60 mm drill holes....

Weight Advantage: For the Φ32mm×3.0m specification, the self-weight is approximately 2.5kg. In comparison, a steel anchor rod of the same specification weighs about 18kg—just 1/7 of the steel weight. Installation Convenience: Integrates drilling, anchoring, and grouting into one process with no additional grouting lines required. Easy for one person to carry and install without heavy lifting equipment....

Application Scenarios: Support for weak and fractured rock masses, suitable for unstable strata such as mudstone, shale, and weathered rock; Reinforcement of fault zones to enhance the integrity of fractured fault areas; Support in water-rich strata for conditions with high groundwater levels and significant water inflow; Initial support for tunnels, including advanced support for subway and highway tunnels....

Corrosion Resistance: Virtually no corrosion occurs in acidic, alkaline, or saline environments. Excellent resistance to seawater corrosion; after 3000 hours of immersion in simulated seawater, strength retention is ≥92%. Insulation Performance: Volume resistivity ≥10¹² Ω·cm; fully insulated with no risk of electrochemical corrosion. Ideal for applications sensitive to electromagnetic environments....

Yes, the coal mine glass fiber hollow grouting anchor rods manufactured by our company have obtained MA certification (Coal Mine Safety Certification) and hold a valid Coal Mine Safety Mark certificate. The products also possess flame retardant and anti-static properties: the flame retardant rating meets the hard-to-combust level, with self-extinguishing time after ignition ≤ 10 seconds; surface resistivity ≤ 3×10⁸ Ω, complying with...

Minimum Order Quantity: Standard specifications require a minimum of 500 pieces; special specifications require a minimum of 1000 pieces. Stock Availability: For diameters Φ28 to Φ38mm, we maintain regular stock lengths of 2000-5000 pieces. Lead Time: Standard in-stock items ship within 2-3 business days after order placement. Special specifications are completed within 7-10 business days....

Reference Price: Φ25-Φ28mm specs approx. 12-20 CNY/pc, Φ32-Φ38mm specs approx. 18-28 CNY/pc, Φ42mm spec approx. 22-32 CNY/pc (standard length 3.0m). By weight approx. 8000-12000 CNY/ton; final price depends on specifications and...

To address brittleness, we implement the following technical measures: 1 Optimize resin formulation by adding toughening agents to improve toughness and increase elongation to over 2.0%; 2 Refine fiber layup processes using a helical + circumferential winding composite structure to enhance impact resistance; 3 Control production process parameters to ensure proper curing....

Key technical points for ensuring full grouting: 1) Thoroughly clean the borehole by using high-pressure air to remove dust and debris; 2) Insert the anchor rod fully, ensuring the end stop plug seals properly; 3) Maintain grouting pressure between 0.5 and 1.5 MPa—too low prevents adequate penetration, while too high may deform the pipe....

Measures to improve shear resistance: 1 Select models with high shear strength (≥80 MPa); 2 Increase anchor diameter, as larger diameters provide higher shear capacity; 3 Optimize spacing to prevent individual anchors from bearing excessive shear forces; 4 Densify anchor layout in areas of concentrated shear stress to create a group anchor effect....

Technical measures to ensure long-term stability: 1 Use high-quality raw materials; fiberglass with E-glass roving, resin with weather-resistant vinyl ester; 2 Optimize interface treatment for strong fiber-resin bonding to prevent delamination and debonding; 3 Strictly control the production process to ensure cure degree ≥95% and reduce internal......

A hollow tubular structure pultruded from fiberglass and resin, with a central bore serving as both the load-bearing section of the rod and the grouting channel....

Price depends on the rod's outer diameter, wall thickness, and resin performance. Contact Anhui Sende New Material Technology Development Co., Ltd. for a quote....

Common outer diameters include 27mm, 32mm, and 38mm, with corresponding inner diameter variations. Lengths can be custom-cut as needed....

Structure determines function. This system integrates anchoring and grouting to enable reverse grouting from the hole bottom, ensuring full and dense grout filling. It is particularly suitable for fractured and unstable formations prone to collapse. In contrast, conventional solid anchor rods require a separate grout tube insertion, often resulting in inconsistent grouting quality....

Advanced small pipe support for tunnels and underground chambers, systematic grouted anchor bolts for slopes and excavation pits, and grouting reinforcement engineering for water conveyance tunnels and fractured rock masses requiring improved self-bearing capacity....

After drilling, insert the hollow anchor bolt and install the grout stopper, washer, and nut. Connect the grouting fitting and begin injecting grout into the hollow core of the anchor. Continue until grout flows out from the bottom of the hole and returns to the surface as thick grout, then stop. This method effectively removes water and air from the hole, ensuring high-quality anchoring....

The standard value of the tensile strength of the rod material shall not be less than 500MPa. The overall tensile capacity is determined by the rod's cross-sectional area and strength....

Anhui Send New Material Technology Development Co., Ltd. produces hollow glass fiber anchor rods in various specifications, along with matching connection and grouting accessories....

Yes. It is a highly advantageous alternative for ground reinforcement zones requiring high-quality grouting, corrosion resistance, and potential future mechanical removal....

It is crucial to clarify the requirements for grouting performance, support strength, and corrosion resistance. Select the correct outer and inner diameters and verify the manufacturer's mechanical property test reports. Anhui Send New Material can provide professional selection recommendations....

Common specifications: Single-strand diameters Φ12mm, Φ15mm, Φ18mm, Φ20mm, Φ22mm, Φ25mm; Multi-strand anchor cables: 3-strand, 5-strand, and 7-strand combinations with total diameters Φ25-60mm. Lengths are customizable per project requirements; standard lengths include 5m, 8m, and 10m....

Tensile Bearing Capacity: Single-strand Φ12mm anchor cable breaking strength ≥ 80 kN; Φ15mm ≥ 125 kN; Φ18mm ≥ 180 kN; Φ20mm ≥ 220 kN; Φ22mm ≥ 270 kN; Φ25mm ≥ 350 kN. Multi-strand anchor cable bearing capacity is the sum of individual strands....

Construction Process: 1) Drilling: The borehole diameter is determined based on the anchor cable diameter, typically 1–21 mm larger than the anchor cable; 2) Anchor Cable Installation: Gently insert the anchor cable into the borehole to avoid twisting or damage; 3) Grouting: Perform pressure grouting at 0.5–1.5 MPa to ensure the borehole is fully filled with grout....

Construction Convenience: For cutting, use a dedicated cutting tool or angle grinder; ensure the cut surface is ground smooth. For installation, the lightweight design (approximately 1/5 of steel anchor cables) facilitates handling and installation without requiring heavy lifting equipment. For tensioning, specialized tensioning equipment is required, and the tensioning procedure follows that of steel anchor cables....

Application Scenarios: Reinforcement of high and steep slopes, suitable for soil or rock slopes with heights ranging from 10 to 50 meters; treatment of deep-seated landslides, used for reinforcing landslide masses with slip surfaces at depths between 5 and 20 meters; roof support in mine roadways, applicable for reinforcing roofs in large-span tunnels; reinforcement of dam abutments, used for stabilizing the abutments on both sides of hydropower station dams....

Superior Corrosion Resistance: Exhibits no significant corrosion during long-term use in acidic or alkaline environments with a pH of 2–12. Its salt spray resistance is over 10 times that of steel strand anchors. Performs exceptionally well in highly corrosive settings such as marine environments, chemical plants, and wastewater treatment facilities. After accelerated aging tests, it remained intact following 300 immersion in simulated seawater....

Insulation Performance: Volume resistivity ≥ 10¹² Ω·cm. Fully insulating with no risk of electric sparks, making it safe for flammable and explosive environments. Explosion-proof Effect: When used in underground coal mines, it prevents static electricity accumulation. Surface resistivity ≤ 3×10⁸ Ω, meeting anti-static requirements. Certified by China Coal Safety Authority (MA)....

Key Advantages: 1 Lightweight, weighing only 1/5 of steel strand anchors, reducing transportation and installation costs; 2 Corrosion-resistant, offering a service life 4–5 times longer than steel strand anchors in corrosive environments; 3 Excellent electrical insulation, preventing electrochemical corrosion and electromagnetic interference; 4 Superior fatigue resistance, ideal for dynamic load conditions; 5...

Reference Price: Single-strand Φ12-Φ15mm approx. 30-50 CNY/meter, Φ18-Φ22mm approx. 50-80 CNY/meter, Φ25mm approx. 80-120 CNY/meter. Multi-strand combination anchor cable prices are calculated by summing the cost per strand. Bulk Discount: Orders of 1000-5000 meters or more receive a 95% discount....

Standard Inventory: Regular sizes (Φ15-Φ22mm single strand) are kept in stock at 1000-3000 meters and ready to ship immediately. Special sizes and multi-strand combinations require custom manufacturing. Lead Time: Standard items ship within 3-5 business days after order; custom items take 10-15 business days to produce....

A flexible bundled cable made from continuous high-strength fiberglass strands impregnated and cured with resin, similar to metal-free steel strand....

Mostly custom-made; commonly specified by nominal breaking strength (e.g., 30 tons, 50 tons, 80 tons) or referenced by strand size (e.g., Φ12.7mm,, Φ15.2mm)....

As a highly customized product, pricing requires an integrated assessment of design load capacity, length, quantity, and anchorage system. Please contact Anhui Send New Material Technology Development Co., Ltd....

It never rusts and weighs only 1/4 of steel. It can be cut, but its low modulus of elasticity (about 1/5 that of steel) means greater elongation under the same load; therefore, specialized wedge-type or bonded anchorage systems are required....

Single-filament strength can exceed 800MPa; after bundling, the ultimate tensile capacity of a single anchor cable can be designed from 30 kN up to 1000kN....

Ideal for excavation support where boundary encroachment must be avoided, future removal is required, or permanent corrosion resistance is needed. Functions as a horizontal prestressed anchor to apply outward pull on retaining piles or walls. Especially suitable for areas with tight land availability outside planning boundaries or where underground space development is planned nearby in the future....

Ideal for temporary or permanent anchoring in excavations and slopes, it serves as a cutting-edge alternative. Especially suitable as a recoverable anchor cable to eliminate subsurface contamination risks....

Basic Process: Drill hole → Insert factory-prepared anchor cable bundle → Grout the anchorage section → After curing to required strength, install anchorage hardware and apply prestressing → Finally, lock the system and fill the free section with anti-corrosion grout....

Anhui Send New Material Technology Development Co., Ltd. offers customized glass fiber anchor cable and matching anchoring system solutions....

Some types are recyclable, but only if they feature a specialized design (e.g., unscrewing to extract the cable). This is proprietary technology and requires custom configuration with the manufacturer prior to application; not all GFRP anchors offer this capability....

Standard Specifications: Diameters Φ12mm, Φ14mm, Φ16mm, Φ18mm, Φ20mm; Lengths customized based on wall thickness, standard lengths 200mm, 250mm, 300mm, 350mm, 400mm, 450mm, 500mm. Thread specifications at both ends....

Mechanical Properties: Tensile strength ≥ 400MPa, compressive strength ≥ 300MPa, shear strength ≥ 60 MPa. The waterstop wing ring and screw rod are integrally molded for high connection strength, capable of withstanding lateral pressure during concrete pouring. The threaded end connection is reliable; a tightening torque of 30-50 N·m meets design requirements....

Applicable wall thickness: 150-600mm for various concrete walls. Selection guide: For thin walls of 150-200mm, use Φ12-Φ14mm bolts; for standard walls of 200-300mm, use Φ14-Φ16mm bolts; for thick walls of 300-400mm, use Φ16-Φ...

Ease of Use: Cutting can be done quickly with standard cutting equipment, producing clean, straight edges. Installation is lightweight and easy for a single person without special tools. Template fixation works like standard threaded rods—simply tighten with nuts. An experienced worker can install 50 units per hour....

Application Scenarios: Basement wall construction, especially suitable for projects with high groundwater levels and stringent waterproofing requirements; water storage structures such as reservoirs and tanks; walls of sedimentation and biochemical tanks in wastewater treatment plants; anti-corrosion walls in chemical industrial zones; civil air defense engineering walls; tunnel lining walls; and formwork fixing for bridge piers. Particularly suitable for applications requiring...

Insulation Performance: Volume resistivity ≥ 10¹² Ω·cm, providing complete insulation with no risk of electrochemical corrosion. Corrosion Resistance: Highly resistant to corrosion in acidic, alkaline, and saline environments; excellent resistance to seawater corrosion. Performs reliably over long periods in pH 2-12 conditions without significant aging. Ideal for use in wastewater treatment plants, chemical facilities, and other harsh environments....

Key Benefits: 1 Reusable and recyclable up to 3-5 times, reducing material costs; 2 No cutting required; walls have no exposed rebar after removal, eliminating risks of rust and water leakage; 3 Lightweight for easy handling and installation, boosting construction efficiency; 4 Insulated and corrosion-resistant, preventing electrochemical corrosion....

Reference Price: Φ12-Φ14mm size approx. 5-10 CNY/piece, Φ16-Φ18mm size approx. 8-15 CNY/piece, Φ20mm size approx. 12-18 CNY/piece (standard length 300mm). Final price depends on specifications, length, and quantity. Bulk discount: Single order 1...

Minimum Order Quantity: Regular specifications start at 500 pieces; special specifications start at 1000 pieces. In-stock Inventory: We maintain 2000-5000 pieces in stock for Φ14-Φ18mm standard lengths. Lead Time: In-stock items ship within 2-3 business days of order placement; special specifications require 5-7 business days to manufacture....

Water Ingress Cause Analysis: 1 Screw holes were not sealed tightly, leaving voids or cracks; 2 Sealing material shrank and cracked, losing its waterproofing function; 3 Concrete around the screws was not properly vibrated, resulting in honeycombing and surface defects; 4 Poor bonding between the waterstop flange and concrete created a path for leakage. Solution: 1 Use micro-expansive......

Preventive measures: 1 Add fixed points and install positioning fixtures at the mid-section of the screw rod to prevent bending; 2 Ensure formwork supports are secure with sufficient stiffness to resist concrete lateral pressure; 3 Maintain reasonable screw rod spacing, typically between 400 and 600 mm, to avoid formwork deformation caused by excessive spacing; 4 Concrete pouring...

Solution: 1 Use high-quality sealing materials; polymer waterproof mortar or epoxy mortar is recommended for their strong bonding strength and excellent crack resistance. 2 Perform chiseling treatment before sealing by roughening the concrete surface around the screw holes to increase the bonding area. 3 Apply an interface agent on the chiseled surface using a specialized product to enhance new...

Cause of Breakage: 1) Substandard screw quality with internal defects or insufficient strength; 2) Excessive lateral concrete pressure exceeding the screw's load-bearing capacity; 3) Insecure formwork support causing localized concentrated loads; 4) Screw spacing too wide, resulting in excessive load on individual screws; 5) External impact or over-bending during construction...

Failure Reasons: 1 Loose connection and gaps between the wing ring and screw rod; 2 Smooth surface of the wing ring resulting in poor bonding with concrete; 3 Inadequate concrete vibration causing voids around the wing ring; 4 Undersized wing ring providing insufficient waterstop path. Corrective Actions: 1 Select a one-piece molded wing ring to ensure a secure, gap-free connection....

Causes of Cracks: 1) Early-age concrete shrinkage, with stress concentration caused by screw restraint; 2) Thermal expansion and contraction due to temperature fluctuations, resulting in thermal cracks; 3) Improper concrete mix design, where an excessive water-cement ratio increases shrinkage; 4) Inadequate curing, leading to rapid surface moisture loss and plastic shrinkage cracks. Prevention Measures: 1) Optimize...

Improvement Measures: 1 Use high-quality raw materials, including weather-resistant vinyl ester resin and E-glass fiber; 2 Add anti-aging additives to enhance UV and oxidation resistance; 3 Apply a protective coating by brushing epoxy or polyurethane onto the screw surface to isolate moisture and oxygen; 4...

Solution: 1) Recalculate screw spacing based on wall thickness, concrete lateral pressure, and formwork stiffness; generally maintain it between 400–60 mm. 2) Increase the number of screws by adding extra fasteners in areas showing bulging. 3) Strengthen formwork support by increasing the quantity and size of waling to improve...

Handling Method: 1 Thoroughly clean before construction; use a wire brush or sandpaper to remove mold release agent and oil from the bolt surface. 2 Apply an interface agent: coat the cleaned bolt surface with a specialized interface agent to enhance bonding with the concrete. 3 Chip out and recast locally: for areas showing hollow drums, chip away loose concrete and clean...

Preventive Measures: 1) Mark the area clearly before construction by placing visible indicators at the screw locations to alert subsequent workers to protect them; 2) Use flexible waterproofing materials, such as polyurethane or JS coatings, which can accommodate minor deformation without cracking; 3) Apply in layers, starting with sealing and curing the screw holes....

The main rod is a threaded all-rod made of resin pultruded with high-strength glass fiber. It features an integrated steel or high-performance plastic waterstop ring in the middle and conical locking components or nuts at both ends....

Common rod diameters: 12mm, 14mm, 16mm. Length is custom-made to match basement wall thickness requirements....

Price varies based on diameter, length, and brand of matching components. For a quote, please contact Anhui Sende New Material Technology Development Co., Ltd....

The key difference lies in post-construction handling. After removing traditional steel tie rods, the protruding sections must be cut off using gas cutting or electric welding, which is inefficient, generates sparks, and leaves rust-prone rebar stubs that stain the exterior walls. In contrast, GFRP water-stop tie rods can be quickly snapped horizontally flush with the wall surface after formwork removal—no sparks, fast operation, and the rod heads never rust....

Widely used in projects requiring strict waterproofing and high-quality concrete finishes, such as basement walls, fire water tanks, subway stations, wastewater treatment plants, and shipyards....

Installation is similar to that of the steel threaded rod. After tying the wall reinforcement, close one side of the formwork, insert the rod through according to the alignment lines, then close the other side. Install the plastic spacers and cone-shaped clamps, and tighten with nuts. After form removal, use a hammer to break off the protruding portion flush against the concrete surface horizontally; no further rust prevention or repair is required....

Advantages: Prevents end corrosion, eliminates cutting (saving labor and eliminating open flames), lightweight rod body, electrical insulation, and a coefficient of thermal expansion close to concrete. Disadvantages: Higher unit cost than standard steel rods, brittle material, strict prohibition against dropping or striking during transport and use, and inability to withstand shear loads in formwork applications....

Yes. In today's construction industry, which prioritizes quality, efficiency, and green practices, it is rapidly becoming the upgraded alternative to standard waterproofing tie rods....

Anhui Sende New Material Technology Development Co., Ltd. specializes in manufacturing and mass-supplying fiberglass water-stop bolts....

1. Inspect the appearance: threads should be clear, full, and undamaged. 2. Verify credentials: request the manufacturer's mechanical performance test report for the pole. 3. Confirm specifications: accurately calculate the required length based on diameter and wall thickness. 4. Choose a supplier: source from reputable manufacturers like Anhui Send New Materials that provide genuine products and technical support....

Standard diameters: Φ12mm, Φ14mm, Φ16mm, Φ18mm, Φ20mm, Φ22mm, Φ25mm, Φ28mm, Φ32mm. Standard lengths: 1.0m, 1.5m, 2.0m, 2.5m, 3.0m, 3.5m, 4.0m, 5...

Standard specifications: Tensile strength ≥500MPa (some high-strength models ≥600MPa), shear strength ≥80 MPa, elastic modulus ≥40 GPa, elongation ≥2.0%, and bond strength ≥12 MPa. All indicators comply with MT/T 1104-2009 "Fiberglass for Coal Mines"....

Accessories specifications: Tray sizes 150×150mm, 200×200mm, 250×250mm; thickness 6-10mm. Nut specifications M12, M14, M16, M18, M20, M22, M25, M28, M32, matching anchor rod diameters. Drill bit diameter...

Theoretical weight: Φ12mm ≈ 0.15kg/m, Φ14mm ≈ 0.20kg/m, Φ16mm ≈ 0.26kg/m, Φ18mm ≈ 0.33kg/m, Φ20mm ≈ 0.41kg/m, Φ22mm ≈ 0.50kg/m, Φ25mm...

Hollow anchor: outer diameters Φ25mm, Φ28mm, Φ32mm, Φ38mm, Φ42mm; inner diameter Φ10-20mm. Primarily used for grouting reinforcement projects. Solid anchor: available in various sizes from Φ12 to Φ32mm. Primarily used for general anchoring applications. Hollow anchors are suitable for scenarios requiring......

Superior corrosion resistance: Remains virtually unaffected in acidic or alkaline environments with pH levels of 2–12. Its salt spray corrosion resistance exceeds that of steel anchors by more than 10 times. Designed service life is 20–30 years in coastal areas (high salt spray environments) and 15–25 years in chemical excavation pits (strong acid/alkali environments)....

Fully meets requirements: volume resistivity ≥ 10¹² Ω·cm, surface resistivity ≥ 10¹³ Ω, dielectric strength ≥ 15kV/mm. Provides complete insulation with no stray current corrosion. Validated in subway projects across Beijing, Shanghai, Guangzhou, and other cities, effectively preventing......

Yes, the fiberglass roof bolts designed for coal mines feature both flame retardancy and antistatic properties: they meet the difficult-to-combust standard with a self-extinguishing time of ≤10 seconds after ignition removal; their surface resistivity is ≤3×10⁸ Ω, satisfying antistatic requirements to effectively prevent static accumulation that could trigger gas explosions. They have been certified by the National Coal Mine Safety Center and hold...

Weather Resistance: Formulated with UV stabilizers, it retains ≥90% of its strength after 2000 hours of UV aging. Design service life is 15-20 years in outdoor slope environments and 20-30 years in humid conditions (e.g., underground or hydraulic engineering). To enhance outdoor......