Please keep your proof of postage from the Post Office until we have confirmed that we have received your returned items. The straight edge, reinvented by Maun for improved safety. We see problems and find innovative ways to solve them.

Straight Edge Board and Floor Screed Rule 3000mm Refina Straight Edge Board and Floor Screed Rule 3000mm

The Rolling Straight edge is pushed at 1-2km/h and the number of irregularities, their length and distance from start, are recorded. The national specifications for surface regularity are then compared and the pavement accepted or rejected and or remedial work undertaken. For a proposed revision of BS 8204 in 2003, a straight edge with feet was again suggested, which was intended to be more portable than the 3m straight edge. This consistedof a collapsible 3m long frame with a wire stretched to standard tension from which to measure the deviation was proposed. This method was rejected in favour of a 2m straight edge set on the slab and is the methodis adoptedin the currentBS 8204,BS EN 13670 Execution of concrete structures, the National Structural Concrete Specification and National Building Specification. The 3m straightedge was superseded by a new 2m straight edge and is the method is adopted in the current BS 8204, BS EN 13670 execution of concrete structures, the National Structural Concrete Specification and National Building Specification. Both straightedges are offered to contractors working to both the old and new specifications.Ensuring a surface is even and smooth once concrete finishing is completed is a vital task for construction professionals eager to leave an accurate and neat job. UK Mainland excludes Northern Ireland, Scottish Highlands, Offshore Islands and the Channel Islands.

Surface regularity - straightedge Standards - Concrete Surface regularity - straightedge Standards - Concrete

SpecificationThe rolling straight edge is shipped in 3 wooden cases with a total gross weight of 112kg.

The Rolling Straight edge measures depressions on the pavement surface on analogue scale 0-12mm + 0.25mm. The straight edge also has an odometer for accurate determination of distance travelled in units of 1 metre. A method of assessing flatness was given in CP 204: 1965 In-situ floor finishes (metric edition 1970) which used a 10ft (~3m) straight edge that was not set directly on the slab but on feet. No apparatus description was given, nor methodology to cover its use or sampling criteria. The idea was to assess unevenness below the temporary datum of the straight edge as a +/- measurement.

Tradewise 3mtr Screed Straight Edge Heavy Duty Aluminium Tradewise 3mtr Screed Straight Edge Heavy Duty Aluminium

Our tools have been in action for over 75 years. Each and every one is engineered to last and has been since 1944. ReferencesT.S.O. - Highways Agency - Specification for Highway Works. This document details requirement in term of the maximum permissible number of irregularities beneath a Rolling Straight edge. TRL - Supplementary Report 290 - details the calibration, maintenance and use of the Rolling Straight edge.

CoGri Group

The location and orientation of tests can be discussed by calling Face Consultants on +44 (0) 1484 600090. It may be necessary to ensure repeatability in the case of any dispute. Related Documents