gcl with hdpe

1.Liufangzibentoniteclaylinerismadeofnaturalsodiumbantonite,andtheLiufangzibentonite mineistheonlyrealnaturalsodiumbentonitemine. 2.Bentoniteclayliners(GCLs)areanestablishedsealingproductinthegeoenvironmental industry.Theyareusedinlandfillcapsandbaselinerapplicationsunderroads,railways, secondarycontainmentforabovegroundtankfarms,aswellaswithinvariousothercontainment structuressuchasdams,canals,ponds,riversandlakes.Theyarealsousedforwaterproofingofbuildingsandothersimilarstructures.Rolledoutlikeacarpettoprovideadurableimpermeableliner,geosyntheticclaylinersconsistofalayerofhighswellingsodiumbentonite,sandwichedbetweentwogeotextiles.bydifferenttechniques,manufacturedliufangziGCL,ismechanicallybondedbyneedlepunchingfromonenonwovengeotextilethroughthebentonitetotheothernonwovenorwovengeotextile.NaturalSodiumBentoniteisanaturallyoccurringclaywithhundredsofuses. Comprisingmainlymontmorillonite,alayeredclaymineralwithbroadflatplateletswhichare ideallyshapedtoprovideahydraulicbarrier.Sodiumionslocatedbetweentheseplateletsallowwatertohydratethebentoniteinanabsorptionreactionthatresultsinthebentonitesswellingcharacteristics.swellswhencontactedwithwaterapproximately900%byvolumeor700%byweight.Whenhydratedunderconfinement,thebentoniteswellstoformalowpermeabilityclaylayerwiththeequivalenthydraulicprotectionofseveralfeetofcompactedclay. 3.Thisswellingallowsthebentonitetosealaroundpenetrations,givingtheGCLselfsealing characteristics.Duringhydration,aconfinedlayerofdrybentonitechangesintoadense monolithicmasswithnoobservableindividualparticles.Afullyhydratedsodiumbentonitelayer canhaveahydraulicconductivityofapproximatelyonehundredtimeslowerthana typicalcompactedclayliner(CCL).Becauseoftheirlowhydraulicconductivity,GCLsareusedmainlyasareplacementforthick,difficulttobuild,compactedclaylinerstoprovideabarriertoliquidsandgases.PermathenesupplyandinstallarangeofGCL'sfromlighttoheavygrades.Thesearehighperformanceenvironmentallinercomprisedofgeosyntheticcarriercomponentsintegratedwithalayeroflowpermeabilitysodiumbentonite.Therollsaresuppliedinwidewidths,minimisingseams.Installationisfast. Untillnow,ourGCLhavebeenusedinshenyangsubway\beijingsubway\shenzhensubawyandsomelandfillprojectsandlake. 4. technical specification of GCL Material Property Test MethodTest ResultsBentonite Swell IndexASTM D-589024ml/2g minBentonite Fluid LossASTM D-589118ml maxBentonite Mass/Area2ASTM D-59934.5kg/m2 minGCL Grab StrengthASTM D-4632600 N/100mm minGCL Peel StrengthASTM D-463270N/100mmGCL PermeabilityASTM D-58873.9*10-11 m/sGCL Hydrated Internal Shear StrengthASTM D-53210.4M Pa,1h, leakageGCL Durability20ml/2g min Liufangzi bentonite mine is the only natural sodium bentonite mine in China!