Precast concrete structural units Assignment

1. Columns and beams are examples of precast concrete structural units.  List five (5) more examples of precast concrete structural units.

2. How do non-pre-stressed structural units differ from pre-tensioned units?

3. What is camber as it relates to non-pre stressed and pre tensioned?

4.  How much camber does a non-pre stressed beam develop?

5.  What are the five (5) commonly used types of pre stressed floor and roof slabs?

6.  Which type of precast pretensioned slabs span the greatest distances?

7.  What is the main value in pre-stressing precast concrete columns?

8.  What is the difference between post-tensioning and pre-tensioning?

9.  List a minimum of six (6) advantages of using precast concrete structural members over concrete cast-in-place construction according to your text. 

10.  According to your text, what are the four types of connections for precast units?

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