ASTM_E_2883_-_13.pdf

Designation:E288313Standard Guide forStandard Guide for the Evaluation,and Calibration,Continuous Friction Measurement Equipment(CFME)1This standard is issued under the fixed designation E2883;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide describes the evaluation and calibration offriction measurement systems which are known as ContinuousFriction Measuring Equipment(CFMEs).The evaluation,andcalibration processes;using the specialized equipment,instruments,pavement surfaces,trained personnel,and ap-proved facilities;are performed using the procedures describedbelow.1.2 This guide is offered as a process to identify andquantify the variables that affect system performance,tominimize the effect of these variables,and to provide a meansto relate CFMEs to reference skid measurement systems.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.Some specifichazards statements are given in Section 7 on Hazards.2.Referenced Documents2.1 ASTM Standards:2C670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsE556 Test Method for Calibrating a Wheel Force or TorqueTransducer Using a Calibration Platform(User Level)E670 Test Method for Testing Side Force Friction on PavedSurfaces Using the Mu-MeterE867 Terminology Relating to Vehicle-Pavement SystemsE1859 Test Method for Friction Coefficient MeasurementsBetween Tire and Pavement Using a Variable Slip Tech-niqueE1960 Practice for Calculating International Friction Indexof a Pavement SurfaceE2340 Test Method for Measuring the Skid Resistance ofPavements and Other Trafficked Surfaces Using a Con-tinuous Reading,Fixed-Slip TechniqueE2666 Practice for Correlations of Mu Values of ContinuousFriction Measurement Equipment to Determine Mainte-nance Levels for Use at AirportsF377 Practice for Calibration of Braking/Tractive MeasuringDevices for Testing TiresF457 Test Method for Speed and Distance Calibration ofFifth Wheel Equipped With Either Analog or DigitalInstrumentation2.2 Other Standards:BS 7941-1:2006 Method for measuring the skid resistanceof pavement surfaces,Sideway-force Coefficient RoutineInvestigation Machine,SCRIM(British Standard)3.Terminology3.1 Definitions:3.1.1 Calibration Platform,na frictionless moving plat-form for applying a tractive force in the contact plane of a tireand associated means for measuring the applied horizontal andvertical force,also referred to as a“force plate.”E6703.1.2 Field Test Center(FTC),na facility with the neededtest equipment,Reference Friction Measurement System(RFMS),test pavements and expertise to evaluate,calibrateand correlate CFME friction measurement systems.E6703.1.3 Horizontal Force,na force in line with the directionof travel for fixed slip devices,perpendicular to direction oftravel for side force devices.E6703.2 Other terminology used in this guide conforms to thedefinitions in Terminology E8674.Summary of Guide4.1 There are three phases to this guide.Phase one recordsand reports the static and dynamic condition and accuracy of1This guide is under the jurisdiction of ASTM Committee E17 on Vehicle-Pavement Systems and is the direct responsibility of Subcommittee E17.21 on FieldMethods for Measuring Tire Pavement Friction.Current edition approved Jan.1,2013.Published Febrary 2013.DOI:10.1520/E2883132For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 the visiting system in an“As Arrived”condition with nochanges being made.During phase two,each subsystem isevaluated and if necessary,adjusted to ensure compliance withtolerances outlined in Test Method E670,E1859,E2340 orother appropriate standards.Phase three is the final dynamiccorrelation between the visiting system and the RFMS.4.2 The FTC personnel will calibrate the calibration plat-form or force plate used by the visiting equipment owner ifprovided.4.3 A detailed report may be generated and presented to theequipment owner describing all static and dynamic test results.5.Significance and Use5.1 Friction characteristics of pavement surfaces ar