Jul . 25, 2025 08:01 Back To List
In contemporary concrete construction, ensuring the stability of formwork during pouring and curing is of paramount importance. A concrete form tie is a vital component designed to secure, stabilize, and maintain the spacing of formwork panels under the immense pressures generated by wet concrete. This article provides an in-depth technical and industrial exploration of concrete form ties, their variants—such as concrete formwork snap ties, concrete formwork ties, concrete wall form tie, and the form tie formwork system—and introduces advanced solutions through industry-leading products.
In recent years, advances in formwork engineering, materials science, and technological integration have propelled the concrete form tie market. The global demand for safe, reusable, and high-strength ties has risen, fueling innovations in alloy composition, corrosion resistance, ergonomic installation, and adaptability for complex shapes.
Leading forums like Concrete Construction Magazine and peer-reviewed studies (ScienceDirect: Concrete Formwork Innovations) document a growing shift toward modular systems and custom-engineered ties. Sustainability goals are also influencing manufacturers to offer recyclable and lower-carbon alternatives.
Type | Material | Diameter (mm) | Breaking Load (kN) | Standard Length (mm) | Corrosion Protection | Application |
---|---|---|---|---|---|---|
Formwork Snap Tie | High Carbon Steel | 12-16 | 60-110 | 120,150,200 | Galvanized/HDG | Slab, Wall, Column |
Formwork Tension Tie Rod | Q235/45# Steel | 15 | 90 | 150-2000 | Epoxy/Galvanized | Heavy-duty Wall |
Formwork She-Bolt | Alloy Steel | 18 | 140 | 200-2500 | Stainless/HDG | Civil & Hydro Project |
Form Tie Wing Nut System | Cast Iron & Steel | 15/20 | 120 | 160/210 | Anti-Rust Paint | Reusable System |
Plastic Cone Tie | Plastic/Composite | 12 | 40 | 50-200 | n/a | Thermal Bridge Break |
A: Usually, concrete form ties are made from high-carbon steel, Q235/45# steel, or ductile cast iron, offering high yield strength and resistance to mechanical deformation. Some projects require stainless steel or alloy-coated ties for enhanced corrosion resistance (AISC steel standard).
A: Standard diameters range from 12mm to 20mm, with available lengths from 150mm up to 2,500mm, customizable for project requirements.
A: Yes, compliance with EN 1065, BS 5975, ACI 347, and ISO 9001 ensures product safety, traceability, and performance in global construction projects (ACI FAQ).
A: Installation torque varies by tie type and diameter. For M16 wing nuts, 120–150 Nm is typical. Engineering design should verify actual required tension to resist concrete pressure.
A: Surface finishes like hot-dip galvanizing (HDG), epoxy coatings, and polymer sheathing are common. Stainless steel ties are chosen for severe environments (Engineering Toolbox).
A: Yes, many snap ties are designed for repeated use and rapid stripping. However, a visual check for bent segments or damaged threads is essential prior to each use to ensure safety.
A: She-bolts are heavy-duty, reusable ties with a threaded steel section and removable cones, suitable for thicker walls, large loads, and when precise alignment is critical.
Parameter | Specification 1 | Specification 2 | Specification 3 |
---|---|---|---|
Thread Size | M12 | M16 | M20 |
Weight (g) | 400 | 550 | 730 |
Breaking Load (kN) | 65 | 90 | 120 |
Corrosion Protection | Galvanized | Galvanized/Epoxy | Galvanized/Epoxy |
Surface Finish | Black/HDG | Black/HDG | Black/HDG |
CANGZHOU WORLD CUP TRADING CO., LTD. stands as a global authority in the concrete form tie sector. With ISO 9001 certification, decades of R&D, and references in industry publications like FormworkForum, the company's expertise enables tailored solutions for diverse construction challenges.
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