Title of article
Chemo-mechanicalcouplingbehaviourofleachedconcrete:PartI:ExperimentalresultsOriginalResearchArticle
Author/Authors
V.H.Nguyen، نويسنده , , H.Colina، نويسنده , , J.M.Torrenti، نويسنده , , C.Boulay، نويسنده , , B.Nedjar، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
7
From page
2083
To page
2089
Abstract
Thispaperdealswithconcretebehaviourunderchemicalandmechanicaldegradations.Experimentalinvestigationsaredescribedwheretheeffectsofthecalciumleachingprocessofconcreteonitsmechanicalpropertiesarehighlighted.Thecalciumleachingandmechanicaltestsoncementpaste,mortarandconcretesamplesarepresented.Becauseoftheslowkineticsofleachingunderdeionisedwater,anacceleratedmethodhasbeenchosenbyusinganammoniumnitratesolutioninstead.Thespecimensareimmersedintoa6mol/lammoniumnitratesolutionwithacontrolledpHdisposal.Toquantifytheleachingevolution,thedegradationdepthisthenmeasuredatcertaintimeintervalsbymeansofaphenolphthaleinsolution.Theexperimentalresultsshowthechemicaldegradationofthecement-basedmaterialandtheimportantroleofaggregateinthecalciumleachingprocessofconcrete.Compressiontestsofconcretesamplesarealsoperformed.Weobservethatthereisastrongcouplingbetweenthecalciumleachingandthemechanicalbehaviour;asleachinggrows,alossofstiffnessandofstrengthareobservedandasmootherpost-peakbehaviourisnoted.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941375
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