低碱度生态混凝土的初步研究

2003.340GypsumandCementforBuilding:2002-11-28:(50072008);;;:,,1970,,:5227,:025-3587270(),,[1],[23],18%35%,pH,,,1,[4](1):,60%80%,1(2):,Ca(OH)2,42.5,121min,189min,110%20%(3):,490015%,CaO73.9%10%20%(4),133622.1L9(34),2,1,2,2,2,1(1.,224002;2.,210009)::65%70%;28dpH11.50,90dpH9.0010.50;27.74%;90d28d30%,:;;pH;:TU528:A:1001-702X(2003)03-0040-03Abstract:Thelowalkalineecologicalconcreteispreparedbyusedofflyashasthemainmaterial.Aluminumpowdercontentandmixtureratioofflyash,lime,cementandwateraredeterminedbyorthogonalexperiments.Duringtesting,flyashmaybeaddedupto65%70%,pHvalueoftheconcreteisbelow11.50in28days,andeven9.0010.50after90days,andtheporosityoftheconcreteis27.4%;Thecompressionstrengthoftheconcretein90daysmaybeincreasedabove30%comparedwithin28days.Theneedsforlowalkalineandhighporosityoftheecologicalconcretehavebeenmet.Keywords:ecologicalconcrete,orthogonalexperiment,pHvalue,flyashNEWBUILDINGMATERIALS41GypsumandCementforBuilding2003.342GypsumandCementforBuilding,,(2),8(0.12%,0.60,10%,15%,75%),27.74%,90dpH8.92,(3),28dpHpH,:[1]..,1998,1(1):1-7.[2].ˆ““ӏʨ.“ӏʨ,1998,36(3):49-51.[3].“ӏʨ.“ӏʨ,1998,36(1):24-26.[4],,.[J].,1996,36(8):44-49.[5],,..:,1986.[6],,..,1999,21(1):24-27.[7],..,2000,25(5):526-528.^1,2(1.,450052,2.):,,:;;;;:TU528:A:1001-702X(2003)03-0042-03:2002-12-02:,1964,,,:75,:0371-77632141(GreenHighPerformanceConcrete,GHPC)(HighPerformanceCon2crete,HPC),,,HPC,,,,HPC,,2,,,2.12.2,,,,,2.3