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Explanation of the ASTM E1155 F Number system & how the Face Consultants’ F Speed Reader quickly & easily tests floors to calculate overall and local F numbers.
The F-Number System is the American Concrete Institute (ACI 117) and Canadian Standards Association (CSA A23.1) standard for the specification and measurement of concrete floor flatness and levelness.
11 cze 2010 · Note that ACI explicitly restricts using the F-Number System (the “F F /F L system” set forth in ASTM E1155) to Random Traffic floors. An entirely different F-number system called the F-min System is used to control the wheel track profiles on defined traffic floors.
F Numbers are measured and calculated using the procedures defined by ASTM E1155 “Standard Test Method for Determining FF Floor Flatness and FL Floor Levelness Numbers”. ASTM E1155 defines two facets of concrete floor surfaces: 1) an “FF” floor flatness value and 2) “FL” floor levelness value.
When correctly employed, the F-Number System is the most powerful tool ever devised for controlling finished floor flatness and levelness. Obviously, to realize the full potential of the system, the contract FF/FL specification must be both accurate and complete. Lacking comprehensive guidance from ACI, however, many specifiers
11 P on a F T. Fun: (2.44) Difficulty: (1.41) Puzzle ID: #154. Submitted By: jerry1 Corrected By: DaleGriffin. Letter-Equations Letter Equations are well known phrases or facts where the key words have been replaced with the first letter of that word.
The F-Number system is a statistical method of evaluating horizontal concrete surfaces for flatness and levelness. The Face Company, in conjunction with ACI Committee 117, developed the basis for the system through the use of a patented continuous Profileograph machine.
