人工砂代替河砂对混凝土工作性能及抗压强度的影响

1（mm）（%）（%）4.752.361.180.600.300.15614223573962.2--329486484933.13.0，，。，，，，［1］。“”，，，，，JGJT241-2011《》。，、，。11.1：P.O42.5R，：366m2kg，160min，215min，27.6%，3d、28d5.6，8.8MPa，29.2，50.6MPa。1.2：，5～31.5mm，：2640kgm3，1420kgm3，1640kgm3，0.4%，0.2%，8.5%，8.5%。1.3：5mm。2.9~3.5，1.25mm45%，（0.08mm）5%。，，，，。1。1.4：，：19.4%，96%，1.7%，0.6%，0.2%。1.5：JZB-3。（523651）：，、，，，C45。：；；；；ArtificialSandInsteadofRiverSandInfluenceontheWorkingPerformanceandtheCompressiveStrengthofConcreteChenJianxinYanYuayuan（DongguanShenyuanConcreteCo.，Ltd.Dongguan523651，China）Abstract：Thisarticlemainlyinvestigatedtheapplicationofartificialsandincommercialconcrete，exploredartificialsandinfluenceontheworkperformance，thepumpperformanceandthecompressivestrengthofconcreteandeconomicbenefitanalysis.Testresultsandengineeringapplicationshowedthatusingartificialsandinsteadofriversandinconcretehasgoodworkperformanceandpumpingperformance，tofor-mulateconcreteoftheC45anditsfollowingstrengthgrade.Keywords：artificialsand；concrete；replacetherate；workperformance；pumpperformance；compressivestrengthGUANGDONGARCHITECTURECIVILENGINEERING201333MAR2013No．3492（%）001C25007862309010857.02.24160002201616442309010667.22.24160003403294942309010487.42.56160004504244252309010177.42.88165005605143422309010097.72.8816500680699175230909868.02.881700071008830230909768.32.88170008C4500623340110115711.53.1515500940264395340110112111.73.6015501060411274340110109511.94.0515501180570142340110107112.24.051550121007450340110102912.44.051603（mm）1h（MPa）7d28d60d00120018019.531.036.300220518020.631.335.200321018024.231.834.500420517523.930.233.800520016524.631.533.6006195145，23.829.631.2007185115，25.628.831.000822019030.145.353.100922018535.248.555.201022519041.850.956.701122018044.655.261.3012225155，43.250.854.9：1.6：CTF-2C。2C25C45，，、。160±20mm，7d、28d、60d。2～3，：⑴，。、，，，，。⑵，。，，，，［2］，，。⑶，。，，，，，。⑷，，，，，［4］，，。⑸，。、，，，。⑹，，7d、28d，，，，，［2］，（）（），。⑺，，。，［3］；，，，，。，C25、C4560%80%。120~130m3，50~60m3，0051m316~20，0111m318~25，。33.1，，。（30）MAR2013No．320133350MAR2013No．320133344.1，：、；，；、。4.2：C20，。4.3，，，。4.4，，，，、。［1］GBT50344-2004［S］［2］CECS03:2007［S］［3］GB50203-2011［S］［4］GB50003-2011［S］［5］GB50009-2012［S］［6］GB50010-2010［S］［7］GB50011-2010［S］［8］GB50292-1999［S］［9］GBT50315-2011［S］!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!4訴E~G訳A~E，。3.2，，［5］。［4］。5%，，10%，。15%，［3］。，5%。3.3，，，，。，，，。，，。3.4，、［5］。，，。3.5，，，。［1］，，.［C］.，2008［2］，.［J］.，2011（12）［3］，，.［J］.，1993（4）［4］，，.［J］.，2004（3）［5］JGJT241-2011［S］（50）30