混凝土抗压强度稳定性六西格玛质量改进研究摘要随着我国经济的快速发展，大规模的建设发展迅速，工业建筑、民用建筑、交通土建、水利水电工程等发展快且持续时间长，混凝土为主要材料。混凝土工程的主导地位不断增强，发挥着越来越重要的作用。本文按照六西格玛的DMAIC步骤对混凝土进行实际改善，分析了六西格玛的应用现状及趋势，对其改善模型进行分析并与其他质量管理进行比较，发现其特点及优势所在。在分析六西格玛的DMAIC步骤的基础上构建了混凝土-DMAICF改善模型，并建立了改善流程。运用MINITAB软件，针对混凝土抗压强度问题，定量地分析了当前混凝土试块的问题，将其进行改善。根据构建的混凝土改善模型及流程对安徽X建筑股份有限公司Y项目部的混凝土进行改进，并取得了良好的效益。关键词：六西格玛；DMAICF；MINITAB；混凝土；抗压强度ABSTRACTWiththerapiddevelopmentofoureconomy,theconstructionanddevelopmentoflarge-scalerapiddevelopment,industrialbuildings,civilconstruction,transportationandcivil,waterconservancyandhydropowerengineeringfastandlastedforalongtime,concreteasmainmaterial.Thedominantpositionofconcreteincreases,playsamoreandmoreimportantrole.ThispaperistheimprovementofconcreteinaccordancewithDMAICstepsofSixSigma,analyzestheapplicationstatusandtrendsofSixSigma,carriesontheanalysistoitsimprovedmodelandcomparedwithotherqualitymanagement,findoutthefeaturesandadvantages.BasedontheanalysisofDMAICprocedureofSixSigmatoconstructtheconcrete-DMAICFimprovedmodel,andtheestablishmentofprocessimprovement.UsingtheMINITABsoftware,tosolvetheproblemofthecompressivestrengthofconcrete,thequantitativeanalysisofthecurrentproblemsofconcretetestblock,willimproveit.AccordingtotheconcretetoimprovethemodelandprocessofAnhuiXconstructionLimitedbyShareLtdYProjectDepartmentofconcretewasimproved,andachievedgoodresults.Keywords:SixSigma;DMAICF;MINITAB;concrete;compressivestrength目录第一章绪论..........................................11.1研究背景...........................................11.2研究的目的和意义...................................21.3国内外研究概况回顾.................................21.3.1国外六西格玛应用概况及趋势....................21.3.2国内六西格玛应用情况及趋势....................31.4六西格玛的定义和方法...............................51.5本文的研究思路及主要研究方法.......................61.5.1研究思路......................................61.5.2主要研究方法..................................71.5.3本文主要创新点................................8第二章混凝土一DMIACF模型构建.......................92.1混凝土简介.........................................92.1.1混凝土的分类..................................92.1.2混凝土的性能.................................102.2构建混凝土一DMAICF................................102.2.1D一定义阶段.................................102.2.2M一测量阶段.................................112.2.3A一分析阶段.................................112.2.4I一优化阶段.................................122.2.5C一控制阶段.................................132.2.6F一财务分析阶段.............................142.3整合混凝土一DMICAF改善模型........................14第三章抗压强度稳定性改进的定义及测量...............163.1项目公司及试块....................................163.1.1项目确定公司简介.............................163.1.2混凝土抗压强度试块...........................163.2定义阶段..........................................183.2.1问题的描述...................................183.2.2识别顾客需求.................................183.2.3...
