再生细骨料质量标准及检验方法的研究

266Vol.26No.62005JournalofQingdaoTechnologicalUniversity＊李秋义,李云霞,姜玉丹(,266033)　:,,.,JGJ52-92、、、(、、、、),()、().,.、,.:,,,,:TU522.09　　,,,[1].,.,[2,3].,.1　,、,.,、、、.,.,.,(、、),.2　,,.,,、.,JGJ52-92、、、、、(、、、、),()().,,、、.3　.,＊　(2004BA809B0305):2005—09—086　　:.3.1　、.3.2　、.3.3　1350g540g,,130±5mm,().3.4　()1350g540g,,130±5mm,.3.5　(),:βW=WRW0(1)　βW—();WR—,mL;W0—,mL3.6　()1∶2.528d,:βR=RRR0(2)　βR—();RR—28d,MPa;R0—28d,MPa4　,、、、、、(、、、、)、、、JGJ52-92.4.1　4.1.1　1350g、()1350g,540g.4.1.2　《》(GB/T2419-94).4.1.3　,130±5mm,.4.1.4　(1),,.15%,,;15%,,.4.2　4.2.1　1350g、()1350g,540g,.4.2.2　《》(GB177-85)28d.4.2.3　(2),,.15%,,;15%,,.7261　(%)Ⅱ(mm)2.51.250.630.3150.1630.244.466.982.689.022.836.458.678.490.325～050～1070～4192～70100～90ⅡⅡ2　(%)2.68.25.4(%)1.60.20.3(%)(%)7.022.923.42.83.12.8(kg/m3)161512251425(kg/m3)173513651560(g/cm3)2.662.442.51(%)0.3930.4980.432(%)0.858.37.35　,,.,,.1,2.,,,,、.,,().、,10.3%,200kg/m3,200kg/m3,,.,,,.,“”,0.08mm,“”;,.6　JGJ52-92,(、、),、、、、、(、、、、),.,、.,,.,,.3　Ⅰ5%10%Ⅱ10%—,、、、、、、,.,3.3,.,,、.、,.,(),.、.,1.13～1.32,0.74～0.99.、、,、,.4.86　　:4　()＊Ⅰ≤1.15≥0.9010%C30Ⅱ≤1.25≥0.80-C30Ⅲ≤1.35≥0.7-、　　　＊:4,JGJ52-92、、7　.,.,JGJ52-92、、(、、、、),()、().,.、,.,,.　　　[1]　,,..:..:,2005.883-889[2]　,,..,2005,26(5):16-19[3]　,..,2004,(6):33-36OntheQualityCriterionandTestMeasureoftheRecycledFineAggregateLiQiu-yi,LiYun-xia,JiangYu-dan(SchoolofCivilEngineering,QingdaoTechnologicalUniversity,Qingdao266033)Abstract:Therehasbeennotechniquecriterionofrecycledfineaggregatesinourcountrysofar.It'ssig-nificanttoestablishthetechniquecriterionofrecycledfineaggregates,sothatitcanimpeltheindustri-alizationofrecycledconcrete.Therequestofrecycledfineaggregatesqualitynotonlyincludesfinenessmodulus,grading,contentofsoil,contentofsoilmud,solidness,contentofbalefulmaterial(likemick,lightweightmaterial,organicmaterial,sulfideandsulfate,contentofchlorinehydronium)whicharerequestedinJGJ52-92,butalsoincludesratioofwaterdosageandcompressionstrengthofrecycledfineaggregatemortar.Forthefirsttime,theauthorsdefinetheratioofwaterdosageandtheratioofcompressionstrengthofrecycledfineaggregatemortar,whichcanreflectthedifferencesbetweenthere-cycledfineaggregateandthenaturesand.Onthebasisoftheratioofwaterdosageandcompressionstrengthofrecycledfineaggregatemortar,therecycledfineaggregatecanbeclassified.Keywords:recycledfineaggregate,ratioofwaterdosage,ratioofcompressionstrength,classification,qualityrequest:李秋义(1963-　),男,博士,教授9