Fill larger cracks and holes using expandable spray foam. To seal cracks on your home: Fill small cracks and holes with quality, exterior grade caulking. Sealing cracks also increases energy efficiency and lowers utility bills by reducing air infiltration into your home.
It is important to note that these cracks (plastic shrinkage cracks) are not classified as structural cracks and do not affect the overall structural integrity of the slab.If the slab is a direct wearing course (driveway, warehouse, etc) then surface durability may be an issue as detailed above. Despite them being at the surface they will develop through the entire thickness of the slab. The cracksThe appearance of cracks can occur within a few hours of finishing the concrete although usually they are not visible until the following day.
They can occur randomly or appear to be in a pattern.
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