英语翻译Timetoinitiationofcorrosionandsubsequentcorrosionratesofsteelreinforcementinplainandmicrosilica-blendedconcretesweredeterminedonprismatic100x62.5x300mm(4•2.5x12in.)specimenscontaininga12.5mm(1/2in

　　英语翻译

　　Timetoinitiationofcorrosionandsubsequentcorrosionratesofsteel

　　reinforcementinplainandmicrosilica-blendedconcretesweredetermined

　　onprismatic100x62.5x300mm(4•2.5x12in.)specimenscontaining

　　a12.5mm(1/2in.)diameterbarembeddedcentrally.Thelengthofthe

　　uncoatedportionofthebarwas275mm(I1in.).Thecoarseaggregatewas

　　amaximumsizeof19mm(3/4in.)ofcrushedlimestonewithabulkspecific

　　gravity2.42andanaverageabsorptionof3.8%.Thefineaggregatewas

　　beachsandofspecificgravity2.70andabsorption0.23%.Awater/cement

　　(w/c)ratioof0.50,cementcontentof357kg/m3(600lbs/cuyd),andcoarse

　　tofineaggregateratioof2.0byweightwasusedfortheplainandthe

　　microsilica-blendedcementconcretes.Thespecimenswerecuredfor28days

　　beforeexposuretothechloridesolution.