Some of the industry misconceptions for floor flatness and levelness are the following.
Dipstick floor flatness.
Floor pavement profiler dipstick is the trade name of a profiling device manufactured by face construction technologies of norfolk virginia usa.
Dipstick was selected for the construction of the world s tallest building and to measure the flattest and most level superflat slab ever constructed.
F numbers provide architects and contractors a method of determining the flatness and levelness of a concrete floor slab.
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.
The instrument is used in 66 countries on six continents to measure the flatness and levelness of concrete floor slabs and pavements.
It s been 45 years since the face companies started developing what became modern concrete floor flatness levelness technology.