氯化铁在以矿渣水泥为胶结料防水混凝土中应用存在的问题

()()()(M)DG,,11,,:,,,,19901992,,,,,,,21211:425#:520mm1:217::,DG1(mm)540mm4020105%31234501812%31237128810100212,,(1),MMDG(2),MDG(60,80)(7d14d28d),,5,22mmkg/m3CWSGcmC%MDG11C28425#540420222680108016150125%12C28425#540420245680108012110125%3%13C28425#540440245680106015100125%3%:22kg/m331,M,MDG,23kg/m3,23kg/m3DG05©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.345134:,1112,1112,,,10%,1213,20kg/m3,1312,,1311,1311,10%51:,111213,1114d121328d,,,MDGM,DG3dMPaMPa11203283418/124119,,1214cm12203283110/111116,,1213cm13203283115/112116,,1113cm:,,4dMPaMPa1180601917/70115,,1112cm1280601813/65113,,1419cm1380601912/68115,,1417cm:M,M,,,57dMPa14dMPa28dMPa11211831173418C2820312181921183110C2820313191727103115C2820341,,,,,,,,M,,,DG:,,,:2FeCl3+3Ca(OH)22Fe(OH)3+3CaCl2FeCl2+Ca(OH)2Fe(OH)2+CaCl21,DG,,,,,,,,,,(2070%),,,,,,;,,,23kg/m3,,,,20kg,M,,(34)15©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.;,41(1)RPC,140MPa(0135)(2),,,,(3)();,,RPC,(4)RPC,,,11P.Richard,CompositionofReactivePowderConcretes,CementandconcreteResearch,Vol.25,No.7,pp.15011511,199521H.Zanni,InvestigationofHydrationandPozzolanicReactioninReactivePowderConcrete(RPC)UsingSiNMR,CementandconcreteResearch,Vol.26,Nol,pp.93100,199631G.Pan,W.Sun,ExperimentalStudyontheMicro2aggregateEf2fectinHighStrengthandSuper2highstrengthCementitiousComposites,CementandConcreteResearch,Vol.28,No.2,pp.171176,199841,200MPa,,1993,31999207230(0731)12725225201()StudyonEffectofCuringScheduleontheStrengthofRPCHeFengHuangZhengyu(CivilEngineeringInstitute,HunanUniversity,Changsha,Hunan)AbstractTheeffectsofthreetypesofcuringschedulesuchasstandardcuring,heatwatercuring(90)andhightemperaturecur2ing(200)andtwokindsoftreatmentfollowingheatcuringontheRPCstrengthcomparedtotheconcretewhichwasblendedsilicafumeorcrushedpowderornotwerestudied.Itwasdemonstratedthatheattreatmentontheconcretewasbeneficialtothecompressivestrength.Nevertheless,thecompressivestrengthwasdecreasedaftertheconcretewasimmersedwater(20)orputinthechamber(20)followingheatcuring.KeywordsCuringscheduleReactivepowderconcrete(RPC)Strength(51)51(1)DG(2)DG(3),M(4)MDGM11()21,1999212220(114021)04122675116143©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.