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How prestressed concrete is made (2)

5. Special trucks bring the concrete to the casting bed where the pouring begins. 6. Once the pouring is complete, a tarp is placed over the form and heat is applied to cure the cement.
7. The prestressing strands are cut and the concrete form is removed from the casting bed.



 8. The ends are cleaned and the prestressing strands are sealed with a protective coating.

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Photos: (1) Portland Cement Association; (2-4) Rita Seraderian-Precast/Prestressed Concrete Institute.

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