The principal types of systems of tie rods that can be used are listed below.
Concrete formwork wall ties.
A form tie contains two parts namely internal tension member and external holding device.
Wall ties forms inc wtf is one of the world s largest companies in the concrete forming business as well as the premier designer and manufacturer of formwork systems.
Form ties sometimes referred to as tie bolts connect opposite faces of wall formwork to restrain the applied concrete pressures.
With the spider tie system you can form any shape wall in a fraction of the time that s required with all other systems.
Over 40 years ago as a new business wtf manufactured wall ties thousands of them.
Today we produce and ship over 30 million ties a year and over 200 000.
Base ties are used in conjunction with base tie bolts typically in forming situations where steel ply style concrete forms are set up against an existing concrete masonry bricks wall or similar structure.
Standard wall ties are now available to suit cavity widths from 50mm to 450mm.
Snap ties make the installation of concrete formwork and the subsequent removal extremely easy and efficient.
There are various systems you can use to create the form system you require depending on your needs.
They maintain equal space between the forms which results in uniform thickness of walls.
Plastic cone snap ties snap ties are used to vertically form concrete walls that can have a wide variety of widths and heights.
A wide variety of concrete formwork wall tie options are available to you such as free samples.
Typically they are installed at 900mm horizontal x 450mm vertical spacing and should be staggered across the wall area to provide an even distribution.
After which you simply unscrew your plywood which may be used again for future projects.
Over 40 years ago as a new business wtf manufactured ties thousands of them.
A form tie is an accessory used in formwork used to hold the concrete wall forms firmly against the lateral pressure of freshly placed plastic concrete.
The world s largest aluminum concrete forms manufacturer and supplier wall ties forms inc is the premier designer of aluminum concrete forming systems and concrete formwork accessories.
This system provides a temporary frame work that you attach your plywood using screws to hold it in place until the concrete has cured.
The minimum density of cavity wall ties as defined in eurocode 6 is 2 5 ties per square metre.