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Standard or Special
precast concrete-4There are two types of precast products. Standard products such as beams, decks, and railroad ties are shaped in one way and used repeatedly. The other type of product is a specialty product, designed especially for the building, bridge, or structure where it will be used. Most precast companies have their own carpentry shops where skilled workers create forms for the many specialty-precast products available. Architectural concrete is often cast specially for each new project.
The forms, whether standard or specialty, are well oiled. Concrete is placed in the forms and allowed to cure. After curing, the product is carefully lifted from the form and taken to a yard for further curing before it is shipped to the project site The form is then carefully cleaned and prepared for the next batch of concrete. Many precasters can turn over their forms every one or two days.
More information is available at the National Precast Concrete Association
For more information on precast concrete, click here.
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