Visual and physical signs of concrete slab moisture problems — from efflorescence to adhesive failure. Field identification guide for contractors and facility managers.
IFTI’s comprehensive guide to concrete slab assessment — FF/FL numbers, ASTM moisture testing standards, moisture barriers, surface preparation, fire resistance, and flooring installation best practices.
Step-by-step procedure for ASTM F2170 in-situ RH testing and ASTM F1869 calcium chloride testing on concrete floors. What to do before, during, and after testing.
Renovating a 50-year-old building? Beware of ‘Slab Poisons’ like oil, old cutback adhesive, and unvapor-barriered slabs. Testing guide for retrofits.
Core sampling extracts a cylindrical plug of concrete to reveal slab thickness, layer composition, bond integrity, and contamination. Complete guide — what a core sample shows, when core sampling is necessary, the step-by-step process, and how to interpret results.
As a General Contractor, managing project timelines, controlling costs, ensuring quality, and coordinating subcontractors are crucial for profitability. Floor flatness (FF) and levelness (FL) might
