Page 76 - Masonry and Concrete
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Concrete Construction Techniques
75
CONCRETE CONSTRUCTION TECHNIQUES
■ Cover the surface completely with large sheets of plastic. Be
sure to keep the plastic flat on the surface of the concrete, or it
will cause uneven coloring. Weight down edges and joints with
pieces of lumber.
■ Cover the surface with roofing felt. Tape the joints and edges or
weight them down with pieces of lumber to help seal moisture
in and retard evaporation.
■ Cover the surface with burlap bags, using a garden hose to keep
the bags wet.
■ Sprinkle or fog the concrete with a garden hose or sprinkler.
■ Apply a chemical curing compound.
Plastic sheeting and roofing felt can cause uneven discoloration of
the concrete surface if they are not kept flat. On large surfaces, it is dif-
ficult to smooth out all of the wrinkles in a covering, so if the concrete
will be exposed to view and its appearance is important, use another
method for curing. Wet burlap curing should not be used on colored
FIGURE 3-36
Pattern stamped concrete. (Photo courtesy PCA).
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