The Symons form tie system is a widely used method for holding concrete forms in place during the concrete pouring process. However, one of the most critical aspects of this system is the spacing of the form ties. Proper spacing can ensure that the forms are held securely, preventing blowouts and ensuring a smooth finish. In this article, we will discuss five tips for Symons form tie spacing to help you achieve the best results.
Understanding Symons Form Ties
Symons form ties are designed to provide a secure and efficient way to hold concrete forms in place. They consist of a patented coil and wedge system that allows for easy installation and removal. However, to ensure that the forms are held securely, it is essential to space the ties correctly.
The Importance of Proper Spacing
Proper spacing of Symons form ties is critical to prevent blowouts and ensure a smooth finish. If the ties are spaced too far apart, the forms may not be held securely, leading to blowouts and a rough finish. On the other hand, if the ties are spaced too close together, it can be difficult to remove them after the concrete has set, leading to damaged forms and a rough finish.
Tip 1: Follow the Manufacturer's Recommendations
The first tip for Symons form tie spacing is to follow the manufacturer's recommendations. The manufacturer provides guidelines for the recommended spacing of the ties based on the thickness of the concrete and the type of forms being used. It is essential to follow these guidelines to ensure that the ties are spaced correctly.
Recommended Spacing Guidelines
The recommended spacing guidelines for Symons form ties vary depending on the thickness of the concrete and the type of forms being used. Typically, the ties should be spaced between 12 and 18 inches apart for most applications. However, it is essential to consult the manufacturer's guidelines for specific recommendations.
Tip 2: Consider the Thickness of the Concrete
The thickness of the concrete is an essential factor to consider when spacing Symons form ties. Thicker concrete requires more frequent spacing to ensure that the forms are held securely. On the other hand, thinner concrete may require less frequent spacing.
Spacing Guidelines for Different Concrete Thicknesses
The spacing guidelines for Symons form ties vary depending on the thickness of the concrete. For example:
- For 3-inch thick concrete, the ties should be spaced 12 inches apart.
- For 4-inch thick concrete, the ties should be spaced 15 inches apart.
- For 5-inch thick concrete, the ties should be spaced 18 inches apart.
Tip 3: Consider the Type of Forms Being Used
The type of forms being used is another essential factor to consider when spacing Symons form ties. Different types of forms require different spacing guidelines. For example, plywood forms may require more frequent spacing than steel forms.
Spacing Guidelines for Different Form Types
The spacing guidelines for Symons form ties vary depending on the type of forms being used. For example:
- For plywood forms, the ties should be spaced 12 inches apart.
- For steel forms, the ties should be spaced 15 inches apart.
Tip 4: Use a String Line to Ensure Accurate Spacing
Using a string line is an effective way to ensure accurate spacing of Symons form ties. A string line can be used to mark the location of the ties, ensuring that they are spaced correctly.
How to Use a String Line
To use a string line, follow these steps:
- Measure the distance between the ties based on the manufacturer's recommendations.
- Mark the location of the ties on the form using a pencil.
- Use a string line to connect the marks, ensuring that the ties are spaced correctly.
Tip 5: Double-Check the Spacing Before Pouring Concrete
The final tip for Symons form tie spacing is to double-check the spacing before pouring concrete. This ensures that the ties are spaced correctly and that the forms are held securely.
Why Double-Checking is Important
Double-checking the spacing of Symons form ties is crucial to prevent blowouts and ensure a smooth finish. If the ties are not spaced correctly, it can lead to costly repairs and delays.
What is the recommended spacing for Symons form ties?
+The recommended spacing for Symons form ties varies depending on the thickness of the concrete and the type of forms being used. Typically, the ties should be spaced between 12 and 18 inches apart.
Why is proper spacing of Symons form ties important?
+Proper spacing of Symons form ties is essential to prevent blowouts and ensure a smooth finish. If the ties are not spaced correctly, it can lead to costly repairs and delays.
How do I ensure accurate spacing of Symons form ties?
+Using a string line is an effective way to ensure accurate spacing of Symons form ties. Measure the distance between the ties based on the manufacturer's recommendations, mark the location of the ties on the form, and use a string line to connect the marks.
By following these five tips for Symons form tie spacing, you can ensure that your concrete forms are held securely, preventing blowouts and ensuring a smooth finish. Remember to follow the manufacturer's recommendations, consider the thickness of the concrete and the type of forms being used, use a string line to ensure accurate spacing, and double-check the spacing before pouring concrete.