They are calculated using the standards set forth in astm e1155 which is the standard test method for determining f f floor flatness and f l floor levelness numbers the american concrete institute indicates acceptable ranges for flatness and levelness in aci 302 1 guide.
Floor slab testing.
Problems with concrete floors can also arise when a change of use occurs and loads differ from the original design.
Warehouse floors in particular can suffer badly.
Flooring manufacturers rate their products based on the moisture levels they can tolerate and testing your slab can tell you if a particular flooring material is likely to perform adequately.
We test nationwide and can provide results in 24 hours.
Astm f2170 standard test method for determining relative humidity in concrete floor slabs using in situ probes states that excessive moisture permeating from floor slabs after installation can cause floor covering failures such as debonding and deterioration of finished flooring and coatings and microbial growth.
Modern concrete floor slabs can be subjected to extremely tough conditions including heavy static and moving loads impact and abrasion.
Floormedics has the expertise combined with the years of experience to give you the essential data that you need to know about your concrete slab.
Proactive independent testing from a certified testing agency can help reduce your liability prevent huge costs and keep your project on track.
F numbers provide architects and contractors a method of determining the flatness and levelness of a concrete floor slab.
Kevin dare managing director of face consultants ltd and a member of the concrete society technical report 34 working group on floor surface regularity puts forward some important views on producing the best floor surfaces.
With our extensive range of load application equipment we can load test your structure anywhere from a few kilograms to hundreds of tonnes.
Testing with either method will tell you how precisely how much moisture is present making it possible to choose a surface flooring that is appropriate.