Contact Info
- Tel: +86-311-87813582
- Fax: +86-311-87829648
- Email: Kaiwork@126.com
- Whatsapp: +86 86 138 3318 2035
- Add: No.345, Youyi North Street, Shijiazhuang City, Hebei Province, China.
Advanced Anti-Corrosion & High-Bond Infrastructure Grade. Engineered for critical post-tensioned structures in aggressive environments, our grit-impregnated epoxy-coated prestressed concrete steel strand combines a robust 1860 MPa tensile core, an impermeable fusion-bonded epoxy barrier, and an abrasive outer grit layer, delivering ultimate corrosion resistance alongside exceptional bond strength for demanding civil engineering.
Grit-Impregnated Epoxy Coated PC Strand | Enhanced Bond Post-Tensioning Tendon
​Designed for critical load paths requiring both maximum corrosion protection and superior structural bonding under international standards. Every coil adheres to rigorous mechanical and coating benchmarks.
|
Technical Parameter |
Specification Value |
Governing Standard |
|
Available Diameters |
12.7 mm (0.5 inch) / 15.24 mm (0.6 inch) / 17.8 mm |
ASTM A416 / ASTM A882 |
|
Strand Configuration |
7-Wire (1 Center Wire + 6 Helical Outer Wires) |
ASTM A882 / ISO 14655 |
|
Specified Tensile Strength |
1860 MPa (Grade 270 High Tensile) |
ASTM A416 / ISO 6934-4 |
|
Coating Foundation |
Fusion-Bonded Epoxy (Electrostatic Spray Cured) |
ASTM A882 / ISO 14655 |
|
Bond Enhancement |
Inert Grit-Impregnated Outer Layer (Abrasive Finish) |
PTI / Specialized Specs |
|
Relaxation Class |
Class 2 (Low Relaxation, Max 2.5% at 1000h) |
JIS G3536 |
|
Surface Condition |
Epoxy Encapsulated with High-Friction Grit Finish |
Corrosion-Inhibited Free |
· ​Dual Performance—Corrosion Resistance & High Bond: The fusion-bonded epoxy layer provides absolute defense against chlorides and de-icing salts, while the embedded grit surface dramatically increases the bond shear strength with structural grout or concrete.
· ​High-Tensile Structural Core: Built upon premium 1860 MPa low-relaxation 7-wire steel strands, delivering uncompromising ultimate breaking load (MBL) reliability for heavy-duty post-tensioned designs.
· ​Optimized Transfer Length: The high-friction grit texture significantly reduces transmission and development lengths in precast or bonded post-tensioned applications, enhancing structural efficiency.
· ​Full Metallurgical & Protective Traceability: Manufactured under stringent ISO 9001 protocols. Each commercial shipment includes a comprehensive Mill Test Certificate (MTC) verifying tensile strength, coating thickness, and bond profile.
​Engineered for heavy-load-bearing post-tensioned structures operating in aggressive or corrosive environments:
· ​Bridge Infrastructure: Segmental box girders, precast bridge beams, stay cables, and bridge decks subjected to aggressive de-icing chemicals or marine air.
· ​Marine & Coastal Structures: Offshore platforms, port wharfs, piers, and cross-sea bridge foundation tie-downs.
· ​Specialized Geotechnical Works: Permanent high-capacity ground anchors and soil nails requiring enhanced pull-out resistance in corrosive strata.
​Q: What is the purpose of the grit-impregnated surface on the epoxy coating?
A: Standard epoxy coatings are smooth, which can reduce mechanical bonding with concrete or grout. The grit-impregnated surface creates a high-friction profile that significantly enhances the bond/shear strength while maintaining complete corrosion protection.
​Q: Do these strands comply with international manufacturing standards?
A: Yes. The base steel strands comply strictly with ASTM A416 / ISO 6934-4, and the epoxy coating processes adhere to ASTM A882 / ISO 14655 performance frameworks.
​Q: What is the standard export packaging and transport safety?
A: Coils are carefully wrapped with heavy-duty padding and protective materials, secured with high-tensile steel strapping, and palletized to prevent any impact or abrasion to the grit-epoxy layer during international containerized transit.
