Page 53 - Masonry and Concrete

Concrete Construction Techniques
52 CHAPTER THREE

PLYWOOD OR LUMBER FORMS

ANCHOR BOLT TEMPLATE
LUMBER TYPE
YOKE LOCK

YOKE

BATTEN

SCAB TYPE
BOLT TYPE
YOKE LOCK
YOKE LOCK

FOOTING FORM

STAKES

FIGURE 3-13A

Bracing tall concrete forms (from U.S. Army, Concrete and Masonry. Technical Manual No.
5-742. U.S. Government Printing Office, Washington, D.C.).

you may occasionally have to bend a 2 4 or 2 6 to form a long-
radius curve. Saw the board one-half to two-thirds through, spacing
the cuts two or three inches apart, then bend the board so that these
“kerf” cuts are on the inside radius. As you bend the board, the kerfs
will close up. At curves, nail the form from the inside to hold it
securely, but use common nails here so the heads will not be embed-
ded in the concrete (Figure 3-17).

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