DD CEN/TS 15901-6:2009 Road and airfield surface characteristics. Procedure for determining the skid resistance of a pavement surface by measurement of the sideway force coefficient (SFCS). SCRIM®
DD CEN/TS 15901-6 is a technical Specification which 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.
DD CEN/TS 15901-6 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 BS EN ISO 13473-1.
Contents of DD CEN/TS 15901-6:
Foreword
1 Scope
2 Normative references
3 Recommended uses
4 Terms and definitions
5 Safety
6 Essential characteristics
6.1 Principle of measurements
6.2 Operating Principle
7 Key Characteristics
7.1 General
7.2 Test equipment
7.3 Test wheel assembly
7.4 Test tyre
7.5 Pavement wetting system, water film thickness
7.6 Measurement control system and recorder
7.7 Parameters recorded
8 Test procedure
8.1 Standard test conditions
8.2 Prior to testing
8.3 Testing
9 Data recording
10 Calibration
10.1 General
10.2 Static calibration of horizontal load measurement
10.3 Static calibration of vertical load measurement
10.4 Vertical load recording static check
10.5 Vertical load static check
10.6 Dynamic calibration check
10.6.1 General
10.6.2 General
10.6.3 Operational procedures for dynamic comparison checks
10.7 Distance calibration
11 Precision
12 Test Report
Bibliography