DIN CEN/TS 15901-15
; DIN SPEC 91218-15:2014-12
Road and airfield surface characteristics - Part 15: Procedure for determining the skid resistance of a pavement surface using a device with longitudinal controlled slip (LFCI): The IMAG; German version CEN/TS 15901-15:2014
Oberflächeneigenschaften von Straßen und Flugplätzen - Teil 15: Verfahren zur Bestimmung der Griffigkeit von Fahrbahndecken durch Verwendung eines Geräts mit geregeltem Schlupf in Längsrichtung (LFCE): Das IMAG-Gerät; Deutsche Fassung CEN/TS 15901-15:2014
Procedure
VN
Overview
This Technical Specification describes a method only used on airports for determining the skid resistance of pavements by measurement of the longitudinal friction coefficient LFCI. The method provides a measure of the wet skid resistance properties of a bound surface by measurement of the longitudinal friction coefficient using a trailer with a standard slip ratio of 15 %. The slip ratio can be chosen between 0 % and 100 % for research application. The test tyre is dragged over a pre-wetted pavement under vertical force and constant speed conditions while the test tyre is parallel to the direction of motion. This Technical Specification covers the operation of the IMAG device. The skid resistance of a pavement is determined by friction measurements at different speeds. Tests can be performed between 40 km/h and 120 km/h but standard test speeds are 40 km/h, 65 km/h and 95 km/h. Low speed measurements asses the microtexture while high speed measurements asses the macrotexture. The skid resistance is reported as friction measurements at these speeds and by comparison with the minimum friction level. The committee responsible for this standard is NA 005-10-08 AA "Oberflächeneigenschaften (SpA zu CEN/TC 227/WG 5)" ("Surface characteristics (Mirror Committee of CEN/TC 227/WG 5)") at DIN.
Document: references other documents
Responsible national committee
NA 005-10-08 AA - Surface characteristics (national mirror committee for CEN/TC 227/WG 5)
