Page 153 - 《水资源与水工程学报》2023年第2期
P. 153
!34 " ! 2 # & ' ( ) & * + , - Vol.34No.2
2023 $ 4 % JournalofWaterResources&WaterEngineering Apr.,2023
DOI:10.11705/j.issn.1672-643X.2023.02.19
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GHIJK:TV42;TV431 .5 LMNOP:A LQRK:1672643X(2023)02014908
Keypropertiesofhydraulicgraniteasphaltconcretepanels
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CHENChen,WANGYaping,JIAOKai,LISheng,ZHANGJintao
(1.SinohydroBureau3rdCo.,Ltd.,Xi’an710024,China;2.SchoolofArchitectureandCivilEngineering,
Xi’anUniversityofScienceandTechnologly,Xi’an710054,China)
Abstract:Topromotetheapplicationofacidaggregatesinhydraulicasphaltconcretepanels,theeffects
ofdifferentacidaggregatesandasphaltviscosityenhancementschemesonthekeypropertiesofasphalt
concretepanelswerestudied ,andtheoptimalacidaggregateandasphaltviscosityenhancementscheme
wereevaluatedcomprehensivelyusingthevariationcoefficientTOPSISmethod.Theresultsshowedthat
allfivedifferentviscosityenhancementschemesimprovedthewaterdamageresistanceofthegraniteas
phaltconcretetodifferentdegrees ,andthewaterstabilitycoefficientandslopeflowvalueallmetthe
specificationlimits.Accordingtotheanalysisoftheeffectofwaterdamageonvariouspropertiesofas
phaltconcrete ,thecompressivestrengthwastheleastsensitivetowaterdamage,whereastheflexural
strainandslopeflowvaluewerethemostsensitive.VariationcoefficientTOPSIScomprehensiveevalua
tionresultsshowedthatlimestoneasphaltconcretehadtheoptimalcomprehensiveperformance ;theaddi
tionofantispallingagentcouldincreasetheresistanceofgraniteasphaltconcretetowaterdamageby
18% ~25% whichwasoptimalforincreasingtheadhesionbetweentheaggregateandtheasphalt ,but
nonamineantispallingagentcouldleadtoalargerdeformationoftheasphaltconcrete.Therefore,the
subsequentstudyoftheapplicationofacidaggregatesinasphaltconcretepanelsshouldfocusonitsde
formationperformance.
Keywords:hydraulicasphaltconcrete;panel;acidaggregate;viscosityenhancementmeasure;varia
tioncoefficientTOPSISmethod
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