Kajian penambahan silica fume terhadap sifat mekanik beton memadat sendiri (self-compacting concrete) / Luqman Hakim
| Main Author: | Hakim, Luqman |
|---|---|
| Format: | Thesis NonPeerReviewed |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
http://repository.um.ac.id/45373/ |
Daftar Isi:
- ABSTRAKHakimLuqman2017.KajianPenambahanSilicaFumeTerhadapSifatMekanikBetonMemadatSendiri(Self-CompactingConcrete).SkripsiProgramStudiS1TeknikSipilFakultasTeknikUniversitasNegeriMalang(UM).Pembimbing(I)Drs.BoedyaDjatmikaS.T.M.T.(II)Drs.Ir.SudomoM.M.T.KataKunciBetonSCCsilicafumesifatmekanikPenggunaanbetonkonvensionalpadakomponenstrukturkonstruksibelummenjamintercapainyakepadatanyangoptimal.Seiringdengankompleksitasdesainkonstruksiyangpadattulanganmakapenggunaanbetonkonvensionalpadakomponenstrukturkonstruksikurangmemadaikarenasudahtidakmemungkinkanvibratoruntukmenjangkaudaerahtulanganrapattersebut.Akibatnyaakanterdapatbanyakudarayangterjebakdidalambetonsehinggamembentukrongga-ronggadidalamsehinggamenjadikanbetontidakhomogenselainitupemadatanyangkurangoptimal.Menilikdaripentingnyapemadatanbetondalampekerjaankonstruksibetonmakadibutuhkanalternatifteknologibetonyaknibetonmemadatsendiri(self-compactingconcrete)selanjutnyadisebutbetonSCCyangmemilikisifatalir(flowable)yangbaiksehinggabisamengisiseluruhronggabetontanpamelaluiprosespemadatandenganvibrator.Padapenelitianinimenggunakansilicafumedansuperplastisicersebagaibahantambah.PenelitianinibertujuanuntukmengetahuinilaikuattekandanmoduluselastisitasbetonSCCdengandantanpabahantambahsilicafumeadakahperbedaannilaikuattekanbetonSCCkarenapenambahansilicafumedenganhipotesisadaperbedaannilaikuattekanbetonSCCkarenapenambahansilicafumeyangbervariasidanuntukmengetahuikadarsilicafumeoptimumpadabetonSCCyangmenghasilkankinerjaterbaik.Metodeyangdipakaipadapenelitianiniadalahmetodeeksperimentasi.denganjumlahbendaujisebanyak90untukujikuattekandan18bendaujiuntukujimoduluselastisitas.Kadarbahantambahsilicafumeyangdigunakanadalah3%5%7%9%dan11%dariberatsemen.Sedangkanuntukkadarbahantambahsuperlasticizersebesar1%dariberatsemen.PengujiansifatmekanikbetonSCCdilakukanterhadapkuattekandanmoduluselastisitasbeton.HasilpenelitianmenunjukkanbetonSCCdenganbahantambahsilicafumesebesar9%dariberatsemenmenghasilkannilaikuattekanterbaikyakni1975MPa.SementarauntukhasilmoduluselastisitasterbaikpadabetonSCCterdapatpadabetonSCCdengankadarsilicafumesebesar9%dariberatsemenyakni3078102MPa.ABSTRACTReviewofAdditionofSilicaFumetoMechanicalCharacteristicofSelf-CompactingConcrete.ThesisS1CivilEngineeringDepartementofCivilEngineeringFacultyofEngineeringStateUniversityofMalang(UM).Counselor(I)Drs.BoedyaDjatmikaS.T.M.T.(II)Drs.Ir.SudomoM.M.T.KeywordSelf-CompactingConcreteSilicafumeMechanicalCharacteristic.Theuseofconventionalconcreteinstructuralcomponentsofconstructionhasnotguaranteedtheachievementofoptimaldensity.Alongwiththecomplexityoftheconstructiondesignissolidreinforcementthentheuseofconventionalconcreteontheconstructionstructurecomponentsisinadequatebecauseitdoesnotallowthevibratortoreachthereinforcementareaofthemeeting.Asaresulttherewillbealotofairtrappedinsidetheconcretetoformthecavitiesinsidesoastomaketheconcreteisnothomogeneousandlesssuboptimalcompaction.Judgingfromtheimportanceofconcretecompactioninconcreteconstructionworkittakesalternativeconcretetechnologythatisself-compactingconcretehereinaftercalledSCCconcretethathasgoodflowabilitysothatitcanfillallconcretecavitywithoutgoingthroughthecompactionprocesswithvibrator.Inthisstudyusingsilicafumeandsuperplastisicerasanaddedmaterial.TheaimofthisresearchistoknowthevalueofcompressivestrengthandelasticmodulusofSCCwithandwithoutsilicafumeisthereanydifferenceofcompressivestrengthvalueofSCCconcretebecauseoftheadditionofsilicafumewithhypothesisthereisdifferenceofcompressivestrengthvalueofSCCconcreteduetotheadditionofvarioussilicafumeandforKnowingtheoptimumlevelofsilicafumeonSCCconcretethatproducesthebestperformance.Themethodusedinthisresearchisexperimentationmethod.Withatotalof90testspecimensforthecompressivestrengthtestand18specimensfortheelasticitymodulustest.Thecontentoftheaddedsilicafumematerialsusedwas3%5%7%9%and11%byweightofcement.Asfortheingredientsaddedsuperlasticizerof1%oftheweightofcement.TestingofSCCconcretemechanicalpropertiesisperformedoncompressivestrengthandelasticmodulusofconcrete.TheresultsshowthatSCCconcretewithsilicafumeadds9%oftheweightofcementyieldsthebestcompressivestrengthvalueof19.75MPa.WhileforthebestelasticitymodulusresultonSCCconcreteisfoundonSCCconcretewithsilicafumecontentof9%fromcementweightthatis3078102MPa.