Features
Single-Sided Moving Wall Form Eliminates Ties
Can you build a 30-foot-high wall with a form that's only 15 inches high? Partners Jim Grantham and Leroy Gray, of The Gray+Tham Co., Seattle, have developed and patented a method for doing just that. Workers can raise the forms a few inches at a time as permitted by stiffening of the concrete, so lateral pressures never have a chance to build up and form ties are not required. Since the forms can be erected and stripped manually, no crane is needed.
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