In constructing a concrete building with a large foot print and/or post-tensioning, it is often necessary to have pour strips. A pour strip, also known as a closure strip, is a section of concrete slab left open to control shrinkage and elastic shortening; it can also be utilized to provide access for stressing of post-tensioning tendons. Pour strips are usually left open for 30 to 60 days to allow for the initial shrinkage and elastic shortening, and then filled with concrete after that time to complete slab continuity. …