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1、學兔兔www.xuetutu.com2011年第5期(總第259期)混凝土原材料殛輔助物料Number5in2011(TotalNo2591ConcreteMATERIALANDADM1NICLEdoi:10.3969~.issn.1002—3550.2011.05.029堿一礦渣制備高性能無機聚合物混凝土試驗研究曹定國,蔡良才’,吳永根’,李建舉,張魯渝。。付亞偉,(1.空軍工程大學工程學院,陜西西安710038;2.中航第九工程總隊,四川成都611431)摘要:以礦渣為原料,摻人NaSiO,和NaOH
2、復合堿激發(fā)劑,制備了無機聚合物混凝Jz(IPC),并通過工作性、強度、靜水壓力和氯離子滲透及快速凍融循環(huán)試驗,研究了IPC的物理力學和耐久性能,分析了礦渣用量和溶膠比對IPC性能的影響規(guī)律。結(jié)果表明:IPC坍落度在160rain以上,為大流動性,工作性優(yōu)良。IPC坍落度隨礦渣用量或溶膠比的增加而增加。為達到大流動性,1PC礦渣用量宜大于400kg/m'.溶膠比不宜低于0.56。IPC28d抗壓強度達92MPa,抗折強度達8.5MPa,7d抗壓強度達85MPa,抗折強度達7.6MPa,為高早強混凝土。IPC
3、各個齡期的強度均隨礦渣用量或溶膠比的提高而降低。1PC抗?jié)B等級在$40以上,抗氯離子滲透性優(yōu)良,6h通電量介于1000~2000C,抗凍等級在F300以上,抗凍耐久性系數(shù)為0.90—0.95,滿足嚴寒地區(qū)混凝土抗凍要求。關鍵詞:無機聚合物混凝土;礦渣;堿激發(fā)劑;工作性;強度;抗?jié)B性;抗凍性中圖分類號:TU528.041文獻標志碼:A文章編號:1002—3550(2011)05—0084—04Experimentalstudiesonhighperformanceinorganicpolymerconcre
4、temadefromalkali—slagCAODing-guo一,CAILiang-cai,wuYong-gen,LIJian-ju2ZHANGLu-yu。,F(xiàn)UYa-wei(1.SchoolofEngineering,AirForceEngineeringUniversity,Xian710038,China;2.No.9EngineeringCorpsofChinaAirport,Chengdu611431,China)Abstract:ByaddingNazSiO3andNaOHcomplexal
5、kaliactivatorinslag,higbperformanceinorganicpolymerconcrete(IPC)wasprepared;Physical,mechanicalperformance,durability,andtheinfluencerulesofslagorratioofactivatorsolutiontoslag(A/S)onperformanceofIPCwerestudiedbyworkability,strength,hydrostaticsandchlorin
6、ionpenetrability,andfastfreeze—thawcycletests.TheresultsshowthatslumpofIPCexceeds160mm,fluidityandworkabilityisexcellentTheslumpofIPCincreaseswiththeincreaseofslagorA/S.MinimumofslagandMSshouldbe400kg/mamd0.56forIPCtohavehighfluidity.28dcompressivestrengt
7、handflexuraltrengthofIPCare92MPaand8.5MPa.7dstrengthare85MPaand7.6MPa,whichbelongstohigh—earlystrenthconcrete,andstrengthofIPCdebaseswithincreaseofdosageofslagorA/S.Theanti·permeabilityrankexceeds$40,chlorinionanti—permeabilityisexcellent,6heletricityis10
8、00-2000C,andtheanti—frozenrankexceedsF300,anti—frozendurabilitymodulusis0.90-4).95,whichcanmeettheanti—frozenrequirementsinfforearea.Keywords:inorganicpolymerconcrete;slag;alkaliactivator;workability;strength;anti—p