Line Cost. New flooring: install 2,500 sq.ft. of mid-grade 5/8 x 4-1/2 wide vinyl plank flooring and 500 linear feet of matching baseboard. $2.49. per sq.ft.
The drying shrinkage of concrete is analogous to the mechanism of drying of timber specimen. The loss of free water contained in hardened concrete, does not result in any appreciable dimension change. It is the loss of water held in gel pores that causes the change in the volume.
And a flat base course will allow the slab to slide easily as it shrinks, reducing restraint and the risk of cracks as the concrete contracts after placement (drying shrinkage). The entire subbase and base system should be at least 4 inches thickâthicker if the engineer feels it is needed for proper support.nd a flat base course will allow the slab to slide easily as it shrinks, reducing restraint and the risk of cracks as the concrete contracts after placement (drying shrinkage). The entire subbase and base system should be at least 4 inches thickâthicker if the engineer feels it is needed for proper support.