WebApr 9, 2015 · The best degree of concrete floor flatness and levelness should be strived for since the floor finish may enhance imperfections such as high and low spots resulting from placement and finishing. A floor flatness rating of 40 +/- 5 and a floor levelness of 35 +/- 5 is required on newly placed concrete. 10. WebThe American Concrete Institute has adopted F-Numbers as its standard for the specification and measurement of concrete slab flatness and levelness. Ff, or "flatness F-Number," defines the maximum floor curvature allowed over 24" (600 mm) computed on the basis of successive 12" (300 mm) elevation differentials. Fl, or "levelness F- Number ...
Specifications for Polished Concrete Architectural Specs
WebLocal Flatness/Levelness of Slabs-on-Grade: The slab-on-grade Random Traffic Floor shall conform to the following minimum F‑number requirements: Specified overall values : … WebProject Specifications Shall Indicate the Corrective Measures for Concrete Slabs that are not in Compliance with Project and Condition Requirements. Appropriate floor flatness … garfield-county.com
Subsurface Tolerances and Floor Flatness Requirements — A …
WebSep 1, 2024 · STANDARDS, PRACTICES and MANUALS ON CONCRETE SLAB FLATNESS Slab Combination Pack ACI PRC-302.1-15 Guide to Concrete Floor and Slab Construction ACI PRC-302.1S-04 Guide for Concrete Floor and Slab Construction - Spanish Language ACI PRC-302.2-06: Guide for Concrete Slabs that Receive Moisture … Webof measuring floor flatness and levelness. F-Numbers use dimensionless symbols to designate flatness and levelness. F-Numbers formalized in 1987 by ASTM E1155 and ASTM E1155M were adopted by the American Concrete Institute as the standard for specifying floor tolerances in 1990 in ACI 117. FF Floor Flatness - variation from Webthe American National Standards Institute (ANSI) Specification for the Installation of Ceramic tile stipulates that deviations in sub-floor flatness should be no greater than … garfield county colorado sheriff dept