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Types of Concrete Form Ties

Concrete form ties are devices used in construction to hold together the formwork, which is the mold or structure into which concrete is poured and shaped. Form ties help maintain the proper alignment and spacing of the formwork, ensuring the structural integrity of the concrete during the pouring and curing process. There are several types of concrete form ties, each designed for specific applications. Here are some common types:

Snap Ties:

Snap ties consist of two parts, often called "ties" and "wedges." The ties are threaded through the formwork and are secured by wedges, creating a temporary connection. After the concrete has cured, the ties and wedges are removed.

Loop Ties:

Loop ties are pre-bent steel wires with loops at both ends. They are placed through small holes in the formwork and are secured by twisting the ends together. Once the concrete has set, the loop ties can be easily removed.

Flat Ties:

Flat ties are flat metal strips or bars used to connect opposite faces of the formwork. They are often used in conjunction with wedges to secure the ties. Flat ties are versatile and suitable for various formwork applications.

Wedge Bolts:

Wedge bolts are threaded bolts with a wedge-shaped end. They are inserted through the formwork and tightened with a nut. The wedge at the end helps secure the formwork in place.

Tie Rods:

Tie rods are long steel rods used to connect opposite faces of the formwork. They are often used in conjunction with other hardware such as wing nuts and washers. Tie rods are commonly used in larger and more complex formwork systems.

Coil Ties:

Coil ties are helical-shaped ties made from coiled wire. They are inserted through the formwork, and the coil shape provides a firm grip. Coil ties are suitable for various formwork applications and are easy to use.

Form Liner Ties:

These ties are designed to leave an imprint or pattern on the concrete surface, providing a decorative finish. They can have various shapes and designs to create unique textures on the finished concrete.


The choice of form ties depends on factors such as the type of formwork used, the size and complexity of the project, and the desired finish of the concrete surface. It's essential to follow industry standards and guidelines when selecting and installing form ties to ensure the safety and stability of the concrete formwork.

Types of Concrete Form Ties

Concrete Form Ties Uses

Concrete form ties play a crucial role in the construction process, specifically in the context of formwork. Form ties are used to hold together the formwork, which is the temporary mold into which concrete is poured and shaped until it sets.


▶ Maintaining Formwork Alignment: Form ties ensure that the formwork maintains the correct alignment and positioning during the pouring and curing of concrete. This is essential for achieving the desired shape and dimensions of the final concrete structure.

▶ Preventing Formwork Distortion: Form ties help prevent the distortion or movement of the formwork caused by the pressure exerted by the wet concrete. Properly secured form ties ensure that the formwork remains in place and retains its shape until the concrete hardens.

▶ Ensuring Structural Integrity: Form ties contribute to the structural integrity of the concrete by holding the formwork securely in place. This is particularly important in projects where accurate and consistent concrete dimensions are critical for the structural performance of the finished building or structure.

▶ Facilitating Vertical and Horizontal Alignment: Form ties are used to align and connect vertical and horizontal sections of formwork. They help create a continuous and stable mold for the concrete, allowing for the proper placement of reinforcing materials and achieving uniform strength.

▶ Supporting the Weight of Concrete: Form ties help distribute the weight and pressure of the wet concrete evenly across the formwork. This ensures that the formwork can withstand the load without collapsing or deforming during the pouring and curing process.

▶ Allowing for Easy Removal of Formwork: Many form ties are designed for easy removal once the concrete has set. This facilitates the demolding process and allows for the reuse of form ties in subsequent construction projects.

▶ Providing Decorative Finishes: Some form ties, such as form liner ties, are designed to leave imprints or patterns on the concrete surface. This can result in decorative finishes that add aesthetic appeal to the final structure.

▶ Adapting to Different Formwork Systems: Form ties come in various types and designs to accommodate different formwork systems and construction requirements. The versatility of form ties makes them suitable for a wide range of applications.


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