WebApr 23, 2014 · Concrete floor specifications are set forth using the American Concrete Institute’s F-number system. This system is for measuring the Flatness and Levelness tolerances (surface profiles) that ... WebAllen Face invented the manual Dipstick in 1983 and the self-recording Dipstick in 1986. In 2003, incorporating all he had learned in the previous 2 decades, he re-engineered it into …
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WebEver since, the Dipstick has been the gold standard for the measurement of concrete floor and pavement profiles. Dipstick measures far more flatness/levelness indices than any other profiler: Face Floor Profile … WebAug 5, 2024 · From the straight edge to the profiler to the laser scanner, the science of measuring floor flatness is now in its third generation; let's call it Flatness 3.0. The invention of the profiler ... graduate christian fellowship berkeley
Floor Flatness Surveying and Testing - Face Consultants
WebThe Flat Floor Library™. Scroll Down for Instructional Videos & Our On-line Library, including Floor Flatness/Levelness FAQs, ACI 117 Sample Specifications and other Useful Documents on. ASTM F-Numbers (FF, FL), Fmin. and the Dipstick® Floor Profiler and Its Software. Since the 1970s, The Face® Companies have played a leading role in the ... WebOct 22, 2010 · Floor Flatness. Floor Flatness may also be a problem during installations. Installing over an uneven subfloor could result in excess movement that might cause gaping and possible breakage. All subfloors require some preparation. Industry standards specify that the surface of the subfloor must be flat to within 3/16” in a 10-ft. radius. WebFlatness/levelness requirements and measurements are outlined. A thorough preconstruction meeting is critical to facilitate communication among key participants and to clearly establish expectations and procedures that will be employed during construction to achieve the floor qualities required by the project specifications. graduate chemistry online