Plastic chairs are placed beneath the welded wire mesh to elevate the temperature steel to the center of the slab to maximize resistance to cracking in the slab, shown in the following two photos.
Terry explains details involving tomorrows pour to us, below.
Finally, Terry unveils one more strategy for reducing cracking in the slab, below: an additive to the cement that delays setting and increases workability while maintaining a reduced water content. Terry points out that water is the enemy when it comes to cracks in concrete because the higher the water content in the concrete the greater the shrinkage, which creates bigger cracks.
Tomorrow is the big day. In the meantime, ....
Frizbee anyone?
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