1、Designation: E 1703/E 1703M 95 (Reapproved 2005)Standard Test Method forMeasuring Rut-Depth of Pavement Surfaces Using aStraightedge1This standard is issued under the fixed designation E 1703/E 1703M; the number immediately following the designation indicates theyear of original adoption or, in the
2、case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method describes the procedure for the mea-surement of the depth of the rut a
3、t a chosen location in apavement surface using a straightedge and a gage.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. Within the text, theinch-pound units are shown in parentheses. The values statedin each system are not exact equivalents; th
4、erefore, eachsystem must be used independently of the other. Combiningvalues from the two systems may result in nonconformancewith the specification.1.3 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 s
5、tandard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E 867 Terminology Relating to Vehicle Pavement Systems3. Terminology3.1 Definitions: For definitions of terms used in this
6、testmethod, refer to Terminology E 867.3.2 Definitions of Terms Specific to This Standard:3.2.1 rut-depth, nthe maximum measured perpendiculardistance between the bottom surface of the straightedge and thecontact area of the gage with the pavement surface at a specificlocation.3.2.2 trueness, nthe l
7、ack of significant curvature, inclina-tion, noteworthy elevations, or depressions.4. Significance and Use4.1 Rutted pavement surfaces may have an adverse influ-ence on vehicle handling characteristics and may impedesurface drainage, which may reduce friction properties andcontribute to hydroplaning.
8、 Rutting indicates deformation orwear of materials in the pavement and may be indicative ofproblems such as asphalt flow, consolidation, shear, or loss ofpavement materials.4.2 The rut-depth value obtained using this test method maynot correlate well with values obtained using other methods.5. Appar
9、atus5.1 Straightedge:5.1.1 WidthThe bottom rectangular surface of thestraightedge shall be at least 19 mm (0.75 in.) but not morethan 75 mm (3.0 in.) wide in the measurement plane.5.1.2 LengthThe preferred lengths of the straightedge areeither 1.83 metres (6 ft), 2 metres (6.56 ft), 3 metres (9.84 f
10、t),3.05 metres (10 ft), or 3.66 metres (12 ft). The length shallensure that the straightedge spans the two highest points oneither side of the rut. The minimum length shall be at least 1.73metres (5.67 ft).5.1.3 TruenessThe maximum out-of-trueness of the bot-tom surface of the straightedge in the me
11、asurement plane shallbe less than6 0.40 mm/m (60.005 in./ft) of length and lessthan 62.5 mm/m (60.03 in./ft) of width. The straightedgemust be rigid enough so that it always meets this trueness.5.2 Gage:5.2.1 The rut-depth measuring gage shall be graduated to 1mm (116 in.) or finer. The bottom surfa
12、ce of the gage shall beat least 19 mm (0.75 in.) but not more than 75 mm (3.0 in.)wide and span areas of aggregate loss and texture. The gageshall have sufficient range to accommodate the measurement.6. Procedure6.1 Straightedge Placement:6.1.1 Place the straightedge across the rut. Allow thestraigh
13、tedge to rest upon the pavement at two contact areas,such that sliding the straightedge along its length in bothdirections will not change the contact areas on the pavement.1This test method is under the jurisdiction of ASTM Committee E17 onVehicle-Pavement Systems and is the direct responsibility o
14、f Subcommittee E17.31on Methods of Measuring Profile and Roughness.Current edition approved June 1, 2005. Published July 2005. Originally approvedin 1995. Last previous edition approved in 2000 as E 1703/E 1703M 95 (2000).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontac
15、t ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Avoid locating the conta
16、ct area at discontinuities that are widerthan the straightedge bottom.6.1.2 Place the straightedge in a plane perpendicular to thedirection of traffic movement. The bottom surface of thestraightedge shall be parallel to the longitudinal slope of thepavement. Do not place the straightedge on any disc
17、ontinuitieson the pavement surface, for example, potholes or loose debris.6.1.3 The longitudinal interval between successive straight-edge placement should be related to the precision required forthe use of the data.6.2 Gage Placement:6.2.1 Place the gage between the two contact areas perpen-dicular
18、 to the reference plane created by the bottom of thestraightedge and perpendicular to the longitudinal slope of thepavement. The bottom of the gage shall be in contact with thepavement at the time of the measurement. Do not place thegage on any discontinuities on the pavement surface, forexample, po
19、tholes or loose debris (see Fig. 1).6.3 Rut-Depth Measurement:6.3.1 Measure the distance between the bottom surface ofthe straightedge and the pavement after the gage has beenplaced as described in 6.1 and 6.2.6.3.2 Measurements should be made to the nearest gradua-tion of the gage. A sufficient num
20、ber of measurements shouldbe made along the straightedge to determine the greatestdistance between the straightedge and the pavement.7. Report7.1 Report at least the following information:7.1.1 Date,7.1.2 Test location to uniquely identify the data reported(such as: Road number, Station, Offset, Whe
21、elpath, or Lane),7.1.3 Dimensions of the bottom surface of the straightedge,7.1.4 Dimensions of the bottom surface of the gage, and7.1.5 Greatest rut-depth measurement (see 3.2.2)tothenearest graduation of the gage specified in 5.2.1.8. Precision and Bias8.1 At this time no precision estimate from a
22、 statistically-designed series of tests at different locations has been obtained.8.2 Since there is no accepted reference material suitable fordetermining the bias for the procedure for measuring therut-depth of pavement surfaces using a straightedge, no state-ment on bias is being made.NOTE 1The pr
23、ecision of each rut-depth measurement depends on thedesign of the depth gage, surface texture, and operator skill. The precisionfor the selected equipment should be determined by the user through astatistically-designed series of tests.9. Keywords9.1 gage; rut; rut-depth; straightedgeASTM Internatio
24、nal takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their
25、 own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be
26、 addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards
27、, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).NOTE 1 Fig. 1 represents only one type of rut configuration.FIG. 1 Rut ConfigurationE 1703/E 1703M 95 (2005)2
