CEN/TS 15901-6:2009

Road and airfield surface characteristics - Part 6: Procedure for determining the skid resistance of a pavement surface by measurement of the sideway force coefficient (SFCS): SCRIM®

This Technical Specification describes a method for determining the wet road skid resistance of a surface by measurement of the sideway force coefficient SFCS.
The method provides a measure of the wet road skid resistance properties of a bound surface by measurement of sideway force coefficient at a controlled speed. The method has been developed for use on roads but is also applicable to other paved areas such as airport runways.
This Technical Specification covers the operation of the Sideway force Coefficient Routine Investigation Machine SCRIM®. This is a device developed by W.D.M. Limited, Bristol, England from original research by the Transport Research Laboratory in the United Kingdom. It uses the side force principle to make routine measurements of skid resistance continuously on long lengths of road. SCRIM test equipment has been built onto a number of different vehicle chassis and functions independently of vehicle choice.
A machine conforming to the general characteristics of the SCRIM and the specific provisions of this Technical Specification may also be used for the tests.
The skid resistance of a pavement is determined by friction measurements and measurements of pavement texture. Where measurement of pavement texture is required the standard for this measurement and the device is described in EN ISO 13473 1.
The skid resistance of a pavement is determined by friction measurements and measurements of pavement texture. Where measurement of pavement texture is required the standard for this measurement and the device is described in EN ISO 13473 1.

Oberflächeneigenschaften von Straßen und Flugplätzen - Teil 6: Verfahren zur Bestimmung der Griffigkeit von Fahrbahndecken durch Messung des Seitenreibungsbeiwerts (SFCS): das SCRIM®-Griffigkeitsmessgerät

Diese Technische Spezifikation beschreibt ein Verfahren für die Bestimmung der Nassgriffigkeit von Fahrbahndecken durch Messung des Seitenreibungsbeiwertes SFCS.
Dieses Verfahren liefert ein Maß für die Nassgriffigkeitseigenschaften einer gebundenen Oberfläche durch Messung des Seitenreibungsbeiwertes bei geregelter Geschwindigkeit. Dieses Verfahren wurde für die Anwendung auf Straßen entwickelt, es lässt sich aber auch auf anderen befestigte Flächen, wie z. B. Start- und Landebahnen auf Flugplätzen, anwenden.
Diese Technische Spezifikation behandelt den Betrieb des SCRIM®-Griffigkeitsmessgeräts (en: Sideway-force Coefficient Routine Investigation Machine). Dabei handelt es sich um ein Messgerät, das von der Firma W.D.M. Limited, Bristol, Großbritannien auf der Grundlage von Forschungsarbeiten des "Transport Research Laboratory" im Vereinigten Königreich entwickelt wurde, und bei dem zur Durchführung von kontinuierlichen Rou¬tinemessungen der Griffigkeit auf langen Straßenabschnitten das Seitenkraftprinzip angewendet wird. Das SCRIM-Griffigkeitsmessgerät lässt sich auf eine ganze Reihe unterschiedlicher Fahrzeugchassis montieren und funktioniert unabhängig vom gewählten Fahrzeug.
Für diese Prüfungen darf auch ein Messgerät verwendet werden, dass den allgemeinen Merkmalen des SCRIM-Griffigkeitsmessgeräts und den speziellen Vorgaben dieser Technischen Spezifikation entspricht.
Die Griffigkeit einer Fahrbahn wird mit Hilfe von Reibungsmessungen und Messungen der Fahrbahntextur ermittelt. Das Normverfahren für die Messung der Fahrbahntextur, falls diese erforderlich ist, und das dafür zu verwendende Messgerät sind in EN ISO 13473 1 beschrieben.

Caractéristiques de surface des routes et aéroports - Partie 6: Mode opératoire de détermination de l'adhérence d'un revêtement de chaussée en procédant au mesurage du coefficient de frottement transversal (CFTS) : le SCRIM

La présente Spécification technique décrit une méthode permettant de déterminer l’adhérence d’une route chaussée mouillée par la mesure du coefficient de frottement transversal CFTS.
La méthode permet de mesurer les propriétés d’adhérence d’une chaussée mouillée par la mesure du coefficient de frottement transversal à vitesse contrôlée. La méthode a été développée en vue d’une utilisation sur des routes, mais s’applique également aux autres surfaces revêtues (les pistes d’aéroport, par exemple).
La présente Spécification technique porte sur le fonctionnement de l’appareil de mesure du coefficient de frottement transversal SCRIM. Il s’agit d’un appareil développé par le « Transport Research Laboratory » au Royaume-Uni qui utilise le principe de la force transversale pour procéder à des mesures de routine en continu de l’adhérence sur de longues sections routières. L’équipement d’essai SCRIM a été monté sur plusieurs véhicules différents et fonctionne indépendamment du choix du véhicule.
Un appareil conçu par le Transport Research Laboratory conforme aux caractéristiques générales du SCRIM et aux dispositions particulières de la présente Spécification technique, peut également être utilisé.
L’adhérence d’une chaussée est déterminée par des mesures du frottement et de la texture de la chaussée. Si une mesure de la texture de la chaussée est requise, la méthode de mesure et le dispositif sont présentés dans l’EN ISO 13473-1.

Značilnosti cestnih in vzletnih površin - 6. del: Postopek določanja torne sposobnosti vozne površine z meritvijo količnika trenja poševno vodenega kolesa (SFCS): SCRIM®

Ta tehnična specifikacija opisuje metodo določanja torne sposobnosti površine mokre ceste z meritvijo količnika trenja poševno vodenega kolesa SFCF. Ta metoda določa merilo lastnosti torne sposobnosti omejene površine mokre ceste z meritvijo količnika trenja poševno vodenega kolesa pri nadzorovani hitrosti. Ta metoda je bila razvita za uporabo na cestah, vendar se uporablja tudi za druge vozne površine, kot so letališke vzletne steze. Ta tehnična specifikacija zajema delovanje opreme Sideway-force Coefficient Routine Investigation Machine SCRIM®. To je oprema, ki jo je razvilo podjetje W.D.M. Limited iz Bristola v Angliji na podlagi prvotne raziskave centra Transport Research Laboratory iz Združenega kraljestva. Uporablja načelo stranske sile, da potekajo rutinske meritve torne sposobnosti na dolgih dolžinah ceste nepretrgoma. SCRIM preskusna oprema je bila vgrajena v številne različne avtomobilske šasije in deluje neodvisno od izbire vozila. Za preskuse se lahko uporablja tudi stroj, ki ustreza splošnim značilnostim naprave SCRIM in posebnim določbam te tehnične specifikacije. Torno sposobnost površine določajo meritve trenja in meritve teksture površine. Kjer se zahteva merjenje teksture površine, je standard tega merjenja in naprave opisan v EN ISO 13473-1.

General Information

• Status: Published
• Publication Date: 17-Nov-2009
• ICS: 93.080.20 - Road construction materials
• ICS: 93.120 - Construction of airports
• Technical Committee: CEN/TC 227 - Road materials
• Drafting Committee: CEN/TC 227/WG 5 - Surface characteristics
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 26-Jun-2012
• Completion Date: 26-Jun-2012
• Ref Project: SIST-TS CEN/TS 15901-6:2010 - Road and airfield surface characteristics - Part 6: Procedure for determining the skid resistance of a pavement surface by measurement of the sideway force coefficient (SFCS): SCRIM®

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2010
=QDþLOQRVWLFHVWQLKLQY]OHWQLKSRYUãLQGHO3RVWRSHNGRORþDQMDWRUQH
VSRVREQRVWLYR]QHSRYUãLQH]PHULWYLMRNROLþQLNDWUHQMDSRãHYQRYRGHQHJDNROHVD
6)&66&5,0Š
Road and airfield surface characteristics - Part 6: Procedure for determining the skid
resistance of a pavement surface by measurement of the sideway force coefficient
(SFCS): SCRIM®
Oberflächeneigenschaften von Straßen und Flugplätzen - Teil 6: Verfahren zur
Bestimmung der Griffigkeit von Fahrbahndecken durch Messung des
Seitenreibungsbeiwerts (SFCS): das SCRIM-Griffigkeitsmessgerät
Caractéristiques de surface des routes et aéroports - Partie 6: Mode opératoire de
détermination de l'adhérence d'un revêtement de chaussée en procédant au mesurage
du coefficient de frottement transversal (CFTS): le SCRIM
Ta slovenski standard je istoveten z: CEN/TS 15901-6:2009
ICS:
17.040.20 Lastnosti površin Properties of surfaces
93.080.10 Gradnja cest Road construction
93.120 *UDGQMDOHWDOLãþ Construction of airports
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 15901-6
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
November 2009
ICS 93.080.20
English Version
Road and airfield surface characteristics - Part 6: Procedure for
determining the skid resistance of a pavement surface by
measurement of the sideway force coefficient (SFCS): SCRIM(r)
Caractéristiques de surface des routes et aéroports - Partie Oberflächeneigenschaften von Straßen und Flugplätzen -
6: Mode opératoire de détermination de l'adhérence d'un Teil 6: Verfahren zur Bestimmung der Griffigkeit von
revêtement de chaussée en procédant au mesurage du Fahrbahndecken durch Messung des
coefficient de frottement transversal (CFTS): le SCRIM Seitenreibungsbeiwerts (SFCS): das SCRIM-
Griffigkeitsmessgerät
This Technical Specification (CEN/TS) was approved by CEN on 27 June 2009 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15901-6:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Recommended uses .4
4 Terms and definitions .4
5 Safety .7
6 Essential characteristics .7
6.1 Principle of measurements .7
6.2 Operating Principle .7
7 Key Characteristics .8
7.1 General .8
7.2 Test equipment .8
7.3 Test wheel assembly .9
7.4 Test tyre .9
7.5 Pavement wetting system, water film thickness .9
7.6 Measurement control system and recorder . 10
7.7 Parameters recorded . 10
8 Test procedure . 10
8.1 Standard test conditions . 10
8.2 Prior to testing . 11
8.3 Testing . 11
9 Data recording . 12
10 Calibration . 12
10.1 General . 12
10.2 Static calibration of horizontal load measurement . 12
10.3 Static calibration of vertical load measurement . 13
10.4 Vertical load recording static check . 13
10.5 Vertical load static check . 14
10.6 Dynamic calibration check . 14
10.6.1 General . 14
10.6.2 General . 14
10.6.3 Operational procedures for dynamic comparison checks . 15
10.7 Distance calibration . 15
11 Precision . 15
12 Test Report . 15
Bibliography . 17

Foreword
This document (CEN/TS 15901-6:2009) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This Technical Specification describes a method for determining the wet-road skid resistance of a surface by
measurement of the sideway force coefficient SFCS.
The method provides a measure of the wet-road skid resistance properties of a bound surface by
measurement of sideway-force coefficient at a controlled speed. The method has been developed for use on
roads but is also applicable to other paved areas such as airport runways.
This Technical Specification covers the operation of the Sideway-force Coefficient Routine Investigation
Machine SCRIM®. This is a device developed by W.D.M. Limited, Bristol, England from original research by
the Transport Research Laboratory in the United Kingdom. It uses the side force principle to make routine
measurements of skid resistance continuously on long lengths of road. SCRIM test equipment has been built
onto a number of different vehicle chassis and functions independently of vehicle choice.
A machine conforming to the general characteristics of the SCRIM and the specific provisions of this
Technical Specification may also be used for the tests.
The skid resistance of a pavement is determined by friction measurements and measurements of pavement
texture. Where measurement of pavement texture is required the standard for this measurement and the
device is described in EN ISO 13473-1.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 48, Rubber, vulcanized or thermoplastic – Determination of hardness (hardness between 10 IRHD and
100 IRHD)
ISO 4662, Rubber – Determination of rebound resilience of vulcanizates
3 Recommended uses
This method provides a means for the evaluation of the skid resistance of a road surfacing. It is suitable for
use for the following situations:
 testing new surfacing materials when installed in a road trial for Type Approval purposes;
 testing new surfacing materials for contractual compliance purposes;
 routine determination of the in-service skid resistance of the surface of a road or airport runway;
 research.
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4.1
friction
resistance to relative motion between two bodies in contact
NOTE The frictional force is the force which acts tangentially in the contact area.
4.2
skid resistance
characterisation of the friction of a road surface when measured in accordance with a standardised method
4.3
wet road skid resistance
property of a trafficked surface that limits relative movement between the surface and the part of a vehicle tyre
in contact with the surface, when lubricated with a film of water
NOTE Factors that contribute to skid resistance include the tyre pressure, contact area, tread pattern, and rubber
composition; the alignment, texture, surface contamination, and characteristics of the road surface; the vehicle speed; and
the weather conditions.
The skid resistance of a road surface in Europe varies seasonally. Generally, wet skid resistance is higher in winter as a
result of the effects of wet detritus and the effects of frost and wear by tyres on microtexture and macrotexture. Wet skid
resistance is lower in summer as a result of dry polishing by tyres in the presence of fine detritus.
The change in skid resistance of a surface in service is affected by the volume of traffic and the composition of the traffic,
i.e. cars, buses, commercial vehicles of different sizes, as the tyres of these vehicles polish and/or wear away the
surfacing material in different ways. The geometry of the road will affect the change in skid resistance. Generally, tyres
polish less on straight roads than on bends.
Where the surface contains aggregate with a coating of binder, e.g. bitumen, resin or Portland cement, the skid resistance
will change as the coating is worn away by tyres.
4.4
bound surface
top layer or surface course of a road with the aggregates secured permanently in place
NOTE Aggregates are commonly secured in place by bitumen or Portland cement.
4.5
operating speed
speed at which the device traverses the test surface
4.6
contact area
overall area of the road surface instantaneously in contact with a tyre
NOTE This term describes the overall area generally covered by the tyre. Due to the effects of surface texture or any
tyre tread pattern, not
...