When calculating concrete volume for a post-tensioned slab in California, what additional factor must be considered beyond the basic slab dimensions according to CBC requirements?
Correct Answer
D) Tendon duct volume displacement and 3-5% waste factor
CBC Section 1903.7 addresses post-tensioned concrete requirements. When calculating concrete volume, the displacement created by tendon ducts must be subtracted from the gross volume, and a standard 3-5% waste factor should be added for normal construction practices. This ensures accurate material ordering and proper structural performance in California's seismic environment.
Why This Is the Correct Answer
CBC Section 1903.7 addresses post-tensioned concrete requirements. When calculating concrete volume, the displacement created by tendon ducts must be subtracted from the gross volume, and a standard 3-5% waste factor should be added for normal construction practices. This ensures accurate material ordering and proper structural performance in California's seismic environment.
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