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Scott Tarr

Tarr Photo 10928886

Scott Tarr, PE, FACI is a consulting engineer and president of North S.Tarr Concrete Consulting. Reach him at [email protected].

From the Author
Concrete Equipment & Products
Specification Limits on Slab-on-Grade Placement Size
American Society of Concrete Contractors (ASCC)
ACI 302 has stated since 1980 that a limited placement size concept has not achieved any better shrinkage results, is more expensive, and adds time to the schedule.
Construction schedules and contractor economics typically require concrete placements of 10,000 to 20,000 square feet or from 30,000 to 50,000 square feet when a Laser Screed is used. This figure shows a 300,000 square foot pour that was completed within 24 hours in a single concrete placement.
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