ACI现场技术员认证程序ACIFieldTechnicianCertificationPrograms:ConcreteFieldTestingTechnician—GradeI混凝土现场试验技术员:CertificationLevel认证等级:1级定义DefinitionAConcreteFieldTestingTechnician—GradeIisanindividualwhohasdemonstratedtheknowledgeandabilitytoproperlyperformandrecordtheresultsofsevenbasicfieldtestsonfreshlymixedconcrete.一级混凝土现场试验技术员能够正确进行下列7项基本的新拌混凝土试验,并记录知识范围ScopeandKnowledgeTheprogramrequiresaworkingknowledgeofthefollowingASTMtestmethodsandpractices:要求了解和掌握下列ASTM试验方法C1064/C1064M-TemperatureofFreshlyMixedHydraulic-CementConcrete新拌硅酸盐水泥混凝土温度的试验方法C172-SamplingFreshlyMixedConcrete新拌混凝土的取样方法C143/C143M-SlumpofHydraulic-CementConcrete水凝水泥混凝土坍落度的标准试验方法C138/C138M-Density(UnitWeight),Yield,andAirContent(Gravimetric)ofConcrete混凝土容重、屈服点及含气量(重力测量)的标准试验方法C231-AirContentofFreshlyMixedConcretebythePressureMethod用压力法测定新拌混凝土中空气含量C173/C173M-AirContentofFreshlyMixedConcretebytheVolumetricMethod用体积法测定新拌混凝土中空气含量C31/C31M-MakingandCuringConcreteTestSpecimensintheField现场制备和养护混凝土试样的标准方法认证要求CertificationRequirementsACIwillgrantcertificationonlytothoseapplicantswhomeetbothofthefollowingrequirements:ACI只对符合下述要求的申请人进行认证ApassinggradeontheACIwrittenexamination;AND通过相应等级的笔试SuccessfulcompletionoftheACIperformanceexamination.成功完成实际操作考试Theone-hourwrittenexaminationis"closedbook"andconsistsoffifty-fivemultiplechoicequestions.TherearebetweenfiveandtenquestionsoneachoftheASTMtestmethodsandpractices.Topassthewrittenexamination,BOTHofthefollowingconditionsmustbemet:1小时笔试(闭卷),包括55道多项选择题，每种ASTM试验方法出5～10道题。笔试合格条件如下：Atleast60%correctforeachoftherequiredtestmethodsandpractices;AND每种方法的得分最少为60分Aminimumscoreof70%overall.总分最低70分Theperformanceexaminationisalso"closedbook"andrequiresactualdemonstrationofsixoftherequiredtestmethodsandpracticesplusaverbaldescriptionofPracticeC172(sampling).Theexamineeisjudgedonhis/herabilitytocorrectlyperform(ordescribe,whereallowed)alloftherequiredstepsforeachprocedure.操作考试也是闭卷的，要求实际进行6项试验和口述1项试验方法（C172，取样）。Recertificationisnecessaryeveryfiveyears,andrequire