The mainobjectiveofthisresearchistoinvestigatethepossibilityofusingferrocement
concretetorehabiliteethedamagedplateswhichfailedunderimpactload.Thecurrent
workpresentsthecomparisonbetweentheresultsofthe first crackloads,theultimate
loads andthedeflections inthecasesoftheimpactandstaticloads.Seventeenplateswere
damaged underimpactload [3TD$DIF][1], whichhavingthedimensionsof500500and25mm
thick. Theplatesweresubjectedtoimpactloadby1.15kgsphericalsteelballunderits
height 1.12matthecenterofthetestedplates.Theferrocementplateswerereinforcedwith
skeletal steelbarsweldedgalvanizedmeshesandexpandedsteelmesheswithskeletal
steel bars. Theplates weretesteduptofailure.Thedamagedplateswererepairedby
employing concretemortarandtwolayersofgalvanizedsteelmesh(300*300mm)atboth
the topandbottomfacesofthedamagedplateandtiedwithonelayer(500*500mm)by
means ofshearconnectorsatbothtopandbottomofthedamagedplatebyusingLscrew
bolts withimbedded fisher.Therehabilitationplates(500*500*50mm)weretested
simply supportsalongitsfoursidesandsubjectedtocentral flexuralloadingsuntilfailure.
The obtainedresultsreachedemphasizedgooddeformationcharacteristics,high first crack
and ultimateload,highductility,energyabsorptionproperties,andcrackingpattern
without spillingofconcretecoverthatispredominant. |
