混凝土速凝剂的现状及最新进展

2911Vol．29No．11201211JournalofYangtzeRiverScientificResearchInstituteNov．201220[e-mail]。[e-mail]。DOI10．3969/j．issn．1001－5485．2012．11．0222012291199－103ababa．b．430010。、、、、、。TU528．042A1001－5485201211－0099－051。30、。1、、。、、42。“”①②③④。。。“”3。2、3。2、、、80%。SikaMBT。2090。、。4SL－1SL－2pH4～6、1．4g/cm3、、、。、5－NSASikaMBT28d。6NSA2012JC477—2005《》“”28d。、7NSA、、LSANSA。LSA。84Na2SO4、Al2SO43、NaF、NaAlO23Na2SO4、Al2SO43、NaF2．8%NaAlO22．0%～2．5%JC477—2005《》。。9“DXQ”28d28d25℃。3、JL－128d。1Table1Productsandcharacteristicsofalkali-freeorlow-alkaliliquidconcreteaccelerator/%/min/min/MPa1d3d7d28d28d/%1d/%28d/%SL－173．0010．0019．832．753．091．476．87．6SL－253．005．5018．145．455．996．461．63．6NSA93．206．5014．846．060．8100．022．3NSA51．204．001838．247．2112．057．9LSA71．803．8016．337．246．6107．557．742．8+2．02．755．588．29．4131．882．62．817．4DXQ3－2．335．0010．349．8100．0JL－182．086．179．1218．144．3104．044．01。4NaAlO22．0%DXQ20±2℃42．5。3203010。。、11。1。C3A。2C3S。NaOHNaSO4C3ACaOH2C3S。Paglia12。C．Maltese1300111Paglia。。10C3SC3A。C—S—HCaOH2、。5－7NSALSA2。NSALSAAlO－2SO2－4。、14、、。。415SL－1SL－2SL－1SL－2R－SO42－Ca2+CaOH2C3SCa2+C—S—HC/SC—S—HC3S2C3S。C3AC3A2。2①②C3SC3AC—S—HCaOH2。4。4．1、。、。。4．21。28d。。。。4．32。。PagliaC．Maltese、、。、。、。4．4、101201216。、。。。3000～6000/t。4．5、5。13%～12%2%。SBT－N1、SBT－N23%～6%5%～8%。。4．6。2、、。。17。。30℃。。5、、、、。。、、、、。1．J．199827116－20．QINGYi-zhong．ResearchAchievementsandOutlookofConcreteAcceleratorsJ．YunnanMetallurgy199827116－20．inChi-nese2．J．200526222－27．PANZhi-huaCHENGJian-kun．TheStatusandResearchDevelopmentofCementAcceleratorsJ．MineConstructionTechnolo-gy200526222－27．inChinese3．JL-1J．2009475－76．HANYu-fangJIANGBoYANGJiu-jun．DevelopmentofJL-1Non-al-kalineLiquidAcceleratorofShotcreteJ．Concrete2009475－76．inChinese4．D．2003．LIQiong．StudyonLiquidLow-alkaliShotcreteD．BeijingBeijingUniversityofTech-nology2003．inChinese5．J．200627525－29．PANZhi-huaLVWenCHENGJian-kun．PerformanceandActionMechanismofAlkali-freeLiquidCementAccelera-torsJ．MineConstructionTechnology200627525－29．inChinese6．J．200729234－39．LVWenLIFu-gangPANZhi-hua．ImprovementoftheAl-kali-freeCementSettingAcceleratorandItsAccelerationMechanismJ．JournalofNanjingUniversityofTechnol-ogy200729234－39．inChinese7．J．200824239－43．PANZhi-huaLIFu-gangLVWen．PropertiesofLiquidStateLowAlkalineAcceleratorforPortlandCementandItsMecha-nismofAccelerationJ．ChemicalBuildingMaterials200824239－43．inChinese8．J．200926520－24．JIANGJia-yunZHANGYan-ling．ExperimentalStudyonLiquidStateCompositeSettingAcceleratorwithLowContentofAlkaliforPortlandCementJ．JournalofJilin20111InstituteofArchitectureandCivilEngineering200926520－24．inChinese9．J．2005477－78．DINGXiang-qunZHAOSuWANGYietal．StudyonaLiq-uidSetting-AcceleratorFreefromAlkaliJ．Concrete2005477－78．inChinese10．J．20092561125－1129．ZHAOSuGUOXin-hua．StudyonthePerformanceandMechanismoftheLiquidSodiumAluminateAcceleratedAgentJ．JournalofShenyangJianzhuUniversity20092561125－1129．inChinese11．M．2008340－361．RUANCheng-xiang．ConcreteAdmixtureandItsApplicationM．NanchangJiangxiScienceandTechnologyPress2008340－361．inChinese12PAGLIACWORMBACHERFBOHNIH．TheInfluenceofAlkali-freeandAlkalineShotcreteAcceleratorswithinCementSystemsICharacterizationoftheSettingBehav-iorJ．CementandConcreteResearch2001316913－918．13MALTESECPISTOLESICDALNEGROE．NewHighPerformanceLiquidAlkali-freeAcceleratorsforWetSprayedConcreteAStateoftheArtaboutActionMecha-nismandTechnologicalPropertiesC∥TheFederationforStructuralConcrete．Proceedingsofthe2ndFIBCon-gressSession4UndergroundandFoundationStruc-turesNaplesItalyJune5－820061－9．14．J．2011171－74．ZHANGZheng-anDINGXiang-qunPANYangetal．Perform-anceandActionMechanismofAlkali-freeLiquidAccel-eratingAgentJ．Concrete2011171－74．inChi-nese15．SLJ．2003630－32．WANGZi-mingLIQiongCHENGYan-songetal．StudyonSLLiquidLow-alkaliShotcreteJ．ChinaCe-ment2003630－32．inChinese16．2011－2015R．20115－187．Zhong-shangZhiyeInvestmentConsultantsCo．Ltd．China’sAcceleratorIndustryMarketandInvestmentProspectsBe-tween2011and2015R．ShenzhenZhongshangZhiyeInvestmentConsultantsCo．Ltd．20115－187．inChinese17．J．2002936－37．QIANDa-xingYAOYang-senCAOJin-wuetal．AcceleratorEffectsonthePerformanceofShotcreteJ．Concrete2002936－37．inChineseTheStatusandLatestResearchProgressofConcreteAcceleratorsGUOWen-kang12WANGShu-yin121．MaterialandEngineeringStructureDepartmentYangtzeRiverScientificResearchInstituteWuhan430010China2．ResearchCenterofWaterEngineeringSafetyandDisasterPreventionofMWRYangtzeRiverScientificResearchInstituteWuhan430010ChinaAbstractAlkali-freeorlow-alkaliliquidconcreteacceleratorhasbeengoingtoreplacethetraditionalacceleratorbyitsexcellentperformanceandtobecometherepresentativeofnewaccelerator．Inordertobetterunderstandtheresearchprogressofalkali-freeorlow-alkaliliquidacceleratorwepresentedtheproductsperformancecharacteris-ticsandtheacceleratingmechanismofnewacceleratorandanalyzedtheexistingproblemsinitsadaptabilitysta-bilityacceleratingmechanismproductsandpricereasonabledosageandapplicationqualitycontrol．Wealsodiscusseddirectionsoffurtherresearchesinthisaspect．Keywordsacceleratoralkali-freelow-alkal