Test Methods in Concrete
According to the Society for Protective Coatings (SSPC), the Portland Cement Association (PCA) and many more organizations, moisture related floor failures are responsible for over 90% of all claims totaling over $1 billion annually in damages. These issues can occur immediately after placement of new concrete or, in some cases, many years down the road.
New Concrete - When placing concrete, there is always free water (water of convenience) in concrete mixtures within w/c 0.45 or higher. Often the ratio fluctuates up to 0.7:1 to improve workability. This amounts to approximately 1700 pounds of free water in 1,000 square feet of slab area at 4 inches thick.The excess water that exits the concrete can cause a newly applied coating to delaminate or form blisters. All of which results in coating failure.