PERFORMANCEEVALUATIONOFGEOPOLYMERCONCRETE
Abstract
Theadvancementofeco-friendlytechnologyintheconstructionsectorhasbeen
improvingrapidlyinthelastfew years.Asaresult,multiplebuildingmaterialswere
developed,enhanced,andproposedasreplacementsforsometraditionalmaterials.
Onenotableexamplepresentsgeopolymerasa substituteforordinaryPortland
concrete(OPC).Themanufacturingprocessof(OPC)generatesCO2emissionsanda
highenergydemand,bothofwhichcontributetoozonedepletionandglobalwarming.
Theimplementationofgeopolymerconcrete(GPC)technologyintheconstruction
sectorprovidesapathtomoresustainablegrowthandacleanerenvironment.Oneof
theeffortstoproducemoreenvironmentallyfriendlyconcreteisthedevelopmentof
inorganicalumino-slicatepolymercalledGeopolymer,synthesizedfrom materialsof
geologicaloriginorby-productmaterialssuchasricehuskandsawdustashthatare
richinsiliconandaluminum.Inthisprojectwork,aimedatusingpotassium-based
solutionandricehuskandsawdustashesassourcematerialsfortheproduction
geopolymerconcretecubesofsize50x50x50mm.Thesewerepreparedwithvarying
activatortosourcematerialratio(0.30,0.45and0.60)andcombinationofpotassium
silicateandpotassium hydroxideatfixedrationof2.5.Theconcentrationofpotassium
hydroxidewasmaintainedatdifferentmolarityof12,15and18M.Atzerodelaytime
theGPCwascuredatvaryingoventemperaturesof60,80and1000C.Thecompressive
strengthwastestedandrecorded
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