Page 49 - Masonry and Concrete

Concrete Construction Techniques
48 CHAPTER THREE

STUD

FORMS

BRACE

FORM
STAKE STAKE

EXISTING
FOOTING
FIGURE 3-9
Bracing forms.

the form boards tightly together to prevent the wet concrete from leak-
ing out. Where the ends of two boards adjoin, drive a stake so that it
supports the ends of both boards. Hold the form boards firmly against
the stakes and nail through the stakes into the form. Use double-
headed nails or screws to make it easier to take the forms apart with-
out hammering or prying against the finished concrete. The tops of
narrow forms can be checked using an ordinary carpenter’s level (Fig-
ure 3-12). For sidewalks, patios, or driveways, plan the locations of
control joints and mark them on the tops of the form boards with a wax
crayon or other marker that will show up easily when the forms are
wet and splattered with concrete.

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)
Copyright © 2004 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.