1、Designation:D1195/D1195M21Standard Test Method forRepetitive Static Plate Tests of Soils and Flexible PavementComponents for Use in Evaluation and Design of Airportand Highway Pavements1This standard is issued under the fixed designation D1195/D1195M;the number immediately following the designation
2、indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the apparatus and pro
3、cedure formaking repetitive static plate load tests on subgrade soils andcompacted pavement components,in either the compactedcondition or the natural state,and is to provide data for use inthe evaluation and design of rigid and flexible-type airport andhighway pavements.1.2 The values stated in eit
4、her SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.3 This standard do
5、es 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international s
6、tandard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Re
7、ferenced Documents2.1 ASTM Standards:2A572/A572M Specification for High-Strength Low-AlloyColumbium-Vanadium Structural Steel2.2 AASHTO Standard:3T 221 Standard Method of Test for Repetitive Static PlateLoad Tests of Soils and Flexible Pavement Componentsfor Use in Evaluation and Design of Airport a
8、nd HighwayPavements2.3 German Standard:4DIN18134 SoilTestingProceduresandTestingEquipmentPlate Load Test3.Terminology3.1 Definitions:3.1.1 deflection,nthe amount of downward vertical move-ment of a surface due to the application of a load to the surface.3.1.2 modulus of subgrade reaction(ks),nthe ra
9、tio of thenormal stress 0under an area load to the associated settle-ments“s.”3.1.3 plate load test,na test in which a load is repeatedlyapplied and released in increments using a circular loadingplate aided by a loading device,with the settlement of theloading plate being measured.3.1.4 rebound def
10、lection,nthe amount of vertical reboundof a surface that occurs when a load is removed from thesurface.3.1.5 residual deflection,nthe difference between originaland final elevations of a surface resulting from the applicationand removal of one or more loads to and from the surface.3.1.6 strain modul
11、us(Ev),na parameter expressing thedeformation characteristics of a soil,calculated from thesecants of the load settlement curves obtained from the first orrepeat loading cycle between points 0.3 0maxand 0.7 0max.4.Summary of Test Method4.1 This test method is used to evaluate the strength ofsubgrade
12、 soils and unbound pavement components,in either1This test method is under the jurisdiction of ASTM Committee E17 on Vehicle-Pavement Systems and is the direct responsibility of Subcommittee E17.41 onPavement Testing and Evaluation.Current edition approved Aug.1,2021.Published August 2021.Originally
13、approved in 1952.Last previous edition approved in 2015 as D1195/D1195M 09(2015).DOI:10.1520/D1195_D1195M-21.2For 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 standard
14、s Document Summary page onthe ASTM website.3Available from American Association of State Highway and TransportationOfficials(AASHTO),444 N.Capitol St.,NW,Suite 249,Washington,DC 20001,http:/www.transportation.org.4Available from Deutsches Institut fr Normung e.V.(DIN),Am DIN-Platz,Burggrafenstrasse
15、6,10787 Berlin,Germany,http:/www.din.de.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Pri
16、nciples for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1the compacted condition or the natural state,for use in thedesign of rigid and flexible-type airport and highway pave-ments.4.2 The test method requires the use of a loading device/hydraulic jack assembly pushing rigid bearing plates into thetest material with instrumentation recording settlement of theplates and the force of the jack
