WebFlatness Specifications. Table 1: Measurement Standards. Geographical Regions. Free Movement Floors. Defined Traffic Floors. UK and areas of UK influence. Concrete Society’s Technical Report 34 (TR34 4th Ed) Free Movement Specification Table 3.1. Concrete Society’s Technical Report 34 (TR34 4th Ed) Defined Movement Specification Table 3.2. WebDec 9, 2009 · Concrete slabs can be described in terms of flatness and levelness. Flatness can be thought of as smoothness —how bumpy or smooth the slab is. Levelness, on the other hand, is the average change in elevation over a longer distance, for example, ½ inch in 12 feet. See Figure 1. Figure 1.

concrete slab flatness Topic - American Concrete Institute

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 decision on which floor flatness specification to choose is usually dependent on the country of origin and there are four main floor flatness specifications used … flirt nesting chair

Floor Flatness and Levelness Testing - The Complete …

WebMay 27, 2024 · Floor flatness (F F) controls the bumpiness of the floor surface and is primarily affected by the finishing operations after screeding, including restraightening … http://ssiteam.com/uploads/collections/Floor_Flatness_and_Levelness_Testing_-_The_Complete_Specification.pdf WebSpecification synopsis: This specification provides standard tolerances for concrete construction and materials. This document is intended to be used by specification writers and ACI committees writing standards as the reference document for establishing tolerances for concrete construction and materials. flirt offers