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自学考试本科毕业论文题目混凝土外加剂在商品混凝土中的应用学院_________建工学院_________专业建筑工程技术学号________2010040142________学生姓名_________李小强__________指导教师__________蜜芙___________日期二零一三年四月随着我国改革开放和现代化进程的加快,我国的建设规模正日益增大,如何保证建筑工程质量的同时也能使工程能长久的安全使用下去,日益受到各级政府和社会各界的广泛关注在众多的土木工程建设中,混凝土的应用面之广,使用次数之多是很少见的尤其中近年来,一种较新的混凝土技术正在快速发展并且运用到许多实际工程项目中,那就是高性能混凝土混凝土外加剂和社会各界的广泛关注在众多的土木工程建设中,混凝土的应用面之广,使用次数之多是很少见的尤其中近年来,i种较新的混凝土技术正在快速发展并目.运用到许多实际工程项目中,那就是高性能混凝土由于具有高耐久性、高工作性、高强度和高体积稳定性等许多优良特性,被认为是目前全世界性能最为全面的混凝土,至今已在不少重要工程中被采用,特别是在桥梁、高层建筑、海港建筑等工程本文主要介绍了高性能混凝土发展的历史背景及目前国内外的研究现状,阐明了高性能混凝土的特性,列举了高性能混凝土在国内外研究应用中的重要成果,并对其发展趋势作出展望随着我国建筑向高层化、大型化、现代化的发展,HPC必将成为新世纪的重要建筑工程材料关键词混凝土外加剂;耐久性;体积稳定性Abstract Along with our country thespeeding upof reformand openingup andmodernization,our countrysconstruction scaleis increasing,how toensure thequality ofconstruction projectsat thesame timecan alsomake theproject tothe safeuse offor along time,increasingly wideattention byall levelsof governmentand thesocial fromall walksof life.In awide rangeof civilengineering construction,the concreteapplication of the wide,use frequencyis veryrare.Especially inrecent years,a relativelynew concretetechnology israpid developmentand appliedto manypractical engineeringprojects,it isof high performance concrete.High Performance Concrete HighPerformanceConcrete,HPC withHigh durability,High workability,High strengthand Highvolume stabilityof manygood characteristics,is consideredto bethe mostcomprehensive Performanceof Concretearound theworld,has beenadopted inmany importantengineering,especially inBridges,high-rise building,port constructionand otherprojects.High-perfonnance concreteis mainlyintroduced inthis paperthe developmentof thehistory backgroundand researchstatus athome andabroad,illustrates thefeatures ofhigh performanceconcrete,lists the important achievementsof theresearch onapplication ofhighperformanceconcrete athome andabroad,and itsdevelopment trendare prospected.Alongwithourcountryconstruction tothe high-level,large-scale,modern developmentof HPCwill becometheimportantconstruction materialsofthenew century.Key wordsHigh performanceconcrete;Durability;Volume stability;。