Designation:C1622/C1622M−10(Reapproved2016)´1StandardSpecificationforCold-WeatherAdmixtureSystems1ThisstandardisissuedunderthefixeddesignationC1622/C1622M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—EditoriallycorrectedASTMdesignationreferencesinOctober2016.1.Scope*1.1Thisspecificationcoverscold-weatheradmixturesys-temstobeaddedtohydraulic-cementconcretewhenthetemperatureoftheconcreteimmediatelyafterplacementwillbeaslowas-5.0°C[23.0°F]priortothetimeofinitialset.1.2Thisspecificationstipulatestestsofthecold-weatheradmixturesystemwithsuitablematerialsasdescribedin11.1–11.3orwithmaterialsproposedforspecificwork(See11.5).Unlessotherwiserequestedbythepurchaser,testsshallbemadeusingsuitableconcretingmaterialsasdescribedin11.1–11.3.NOTE1—Wheneverpracticable,testsshouldbemadeusingtheconcretingmaterials,themixtureproportions,andbatchingsequenceproposedforthespecificwork(See11.5)becausethetimeofsetting,compressivestrengthgain,andotherpropertiesmayvary.1.3Thisspecificationprovidesthreelevelsoftesting.1.3.1Level1—Duringtheinitialapprovalstage,proofofcompliancewiththeperformancerequirementsdefinedinTable1demonstratesthatthecold-weatheradmixturesystemmeetstherequirementsofthisspecification.Uniformityandequivalencetests(SeeSection6)shallbecarriedouttoprovideresultsagainstwhichlatercomparisonscanbemade.1.3.2Level2—Limitedretestingisdescribedin5.2,5.2.1,and5.2.2.ProofofcompliancewiththerequirementsofTable1demonstratesconformityoftheadmixturesystemwiththerequirementsofthisspecification.1.3.3Level3—Foracceptanceofalotorformeasuringuniformitywithinorbetweenlots,whenspecifiedbythepurchaser,uniformityandequivalencetests(SeeSection6)shallbeused.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theinch-pounduni...
