Designation:D7949−14StandardTestMethodsforThermalIntegrityProfilingofConcreteDeepFoundations1ThisstandardisissuedunderthefixeddesignationD7949;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodsprovideproceduresformeasuringthetemperatureprofilewithinadeepfoundationelementconstructedusingcast-in-placeconcrete,suchasboredpiles,drilledshafts,augeredpiles,diaphragmwalls,barrettes,anddams,andalike.Thethermalprofileinducedbythecuringconcretecanbeusedtoevaluatethehomogeneityandintegrityoftheconcretemasswithinthedeepfoundationelement.1.2Twoalternativeproceduresareprovided:1.2.1MethodAusesathermalprobeloweredintoaccessductsinstalledinthedeepfoundationelementduringconstruc-tion.1.2.2MethodBusesmultipleembeddedthermalsensorsattachedtothereinforcingcageinstalledinthedeepfoundationelementduringconstruction.1.3AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026,unlesssupersededbythisstandard.1.3.1Theproceduresusedtospecifyhowdataarecollected/recordedandcalculatedinthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatshouldgenerallyberetained.Theproce-duresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsider-ationsfortheuser’sobjectives;anditiscommonpracticetoincreaseorreducesignificantdigitsofreporteddatatocom-mensuratewiththeseconsiderations.Itisbeyondthescopeofthisstandardtoconsidersignificantdigitsusedinanalysismethodsforengineeringdesign.1.4Thisstandardprovidesminimumrequirementsforther-malprofilingofconcretedeepfoundationelements.Plans,specifications,and/orprovisionspreparedbyaqualifiedengineer,andapprovedbytheagencyrequiringthetest,mayprovideadditionalrequirementsandproceduresasneededto...
