A Review paper on Ultra High Strength Concrete

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056

Volume: 09 Issue: 08 | Aug 2022 www.irjet.net p-ISSN: 2395-0072

A Review paper on Ultra High Strength Concrete

2

1 M.Tech in Structural Engineering, Narula Institute of Technology, Agarpara, Kolkata-700109 2 Prof. of Narula Institute of Technology, Agarpara, Kolkata-700109 ***

Abstract - High Strength Concrete (UHSC) is the latest amazing development in Portland cement based materials base. By eliminating coarse materials, improving powder packing density through a specific particle size distribution, and applying water hardening up to 90°C when 2-5% of the fibers .This material (sludge with particle size distribution) called UHSC because it acts at microstructural level such as reinforced concrete. UHSC mix ratios were developed using local materials to make UHSC more affordable for a variety of applications. Using local materials to manufacture this innovative material reduces material costs, improves sustainability and provides mechanical performance similar to pre-packaged commercial products.

1.INTRODUCTION

Ultra-High Strength Concrete was built and changed the world of construction. This project attempted to investigate the propertiesandfeaturesoftheUHSCorUHPCanditsvariants,anddemonstratesthemixedstructureoftheUHSCandits functionality today. The literature review explained how the UHSC behaves in terms of mechanical properties such as compressivestrength,ductility,weatherresistance,andvoids.

Inaddition,itisshowingthetypesofUHSCwiththeirpropertiesandmixdesign,andexplainedthechallengesthatfacethe constructionandusagethistypeofconcretewhicharethecost,experience,lakeofresearchesandspecificationformixdesign. Andthereforeaeconomicalbasisforproductionofconcretewithveryhighdensityandstrengthwasestablishedandarapid developmentofHSCtookplace.

Nowdays,theUHSCseemstobeapromisingassetforpre-existingandpre-existingconcretemembers.Thesematerialscan thereforebeusedforindustrialandnuclearwastestoragefacilities.Thesilicafumeusedinthistechnologyhasthreemain functions;fillinginthegapsbetweentheparticlesofthenextlargeclass(cement),thedevelopmentofrheologicalfeaturesby thecoatingeffectcausedbythecompleterotationofthebasicparticles,theproductionofsecondaryhydratesbypozzolanic reactionandthelimeresultingfromthebasicflow.Quartzpowderaidsinitseffectivenessduringheattreatment.

Thispaperintroducesthedevelopmentofhighstrengthconcrete(UHSC)usinglocalmaterials.UHSCintegrationstandards developedusinglocalmaterialsinUHSCcanbemademoreaffordableforawidevarietyofapplications.Specifically,localsand withamaximumsizeof0.0236in.(600μm),whichcontainslocalI/IIcementandsilicasmokewasusedinthisstudy.Eachof these visual optionslookslike animprovement in UHSCsustainability. Twocompounds(one fiberand one non-fiber)are recommendedasUHSCblends.Themaximumcompressionstrengthobtainedinthisstudywas24,010psi(165.6MPa)forUHSC withsteelcordsand23,480psi(161.9MPa)forUHSCwithoutstrings.ThepressureandflexibilityarederivedfromtheUHSC componentsmadeforthisfunctioncomparedtotheUHSCcapabilitiespresentedintheliterature.Manufacturingthisnew material with local materials reduces its material cost, improves stability, and produces machine performance similar to productsalreadypackaged,availableforsale.

M. Mazloom , A.A. Ramezanianpour , J.J. Brooks (2003)

This paper presents the results of experimental work on short- and long-term mechanical properties of high-strength concrete containing different levels of silica fume. The aim of the study was to investigate the effects of binder systems containingdifferentlevelsofsilicafumeonfreshandmechanicalpropertiesofconcrete.Theworkfocusedonconcretemixes havingafixedwater/binderratioof0.35andaconstanttotalbindercontentof500kg/m3.Thepercentagesofsilicafumethat replacedcementinthisresearchwere:0%,6%,10%and15%.Apartfrommeasuringtheworkabilityoffreshconcrete,the mechanicalpropertiesevaluatedwere:developmentofcompressivestrength;secantmodulusofelasticity;strainduetocreep, shrinkage,swellingandmoisturemovement.

International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 09 Issue: 08 | Aug 2022 www.irjet.net p-ISSN: 2395-0072

I.Papayianni, E. Anastasiou(2010)

Rising use of natural resources has turned into a major international problem with serious environmental, social and financialconsequences.Theuseofseparatematerialsinconcreteisstillverylimitedinlow-strengthconcreteproductssuchas basic roadstudies and 80%of the fly ashproducedandslags endup inlow-costuse.In the present report,industrial use. productsfromcon-creteproductionareaboutcompositecompositesandcompositecompositions.High-calciumflyash(HCFA) orladlefurnaceslag(LFslag)areusedasotherbondsandarcfurnace(EAFslag)asotherscombinations.producingconcrete withahighvolumeofindustrialproducts,replacingcement(HCFAorLFslag)withtheuseofEAFslagasabase.

Recentadvancesinnanotechnologyresearchhavebeenusedtoimprovedurability,servabilservice,andhigh-performance concretesafety(UHPC).Inaddition,theimprovementofconcretestrengthhasallowedforastableandheavybuildingsize, greatlyreduced,resultinginlowercostsandanimprovedaestheticvalue.AmongthemanyUHPCscurrentlyavailableonthe market,theyrepresentthehigheststrengthconcrete(UHSC)andactivepowderconcrete(RPC).EventhoughtheUHSCandRPC havepressuresabove100MPa,yoursafetyisatriskduetohighfailurebehaviorandcostlyperformance.Explosivestrengthin theUHSCandRPCweretestedtodeterminethefeasibilityofusingtheUHSCandRPCinsecretareasthatareatriskofterrorist attacks or the effects of attacks. Deterioration flow, compressive strength, strong power separation, elastic modulus, and flexibilitystrengthtestswereperformed.Additionally,ANFOexplosiontestswereperformedonUHSCandRPCcertifiedpanels Occurred and demonstrated .Presses, as well as massive displacement and residual and rebar types and concrete scales. Explosivesdamageandmethodsoffailureofreinforcedpaneltemplateswererecorded.OurresultshaveshownthatUHSCand RPCaremoreresistanttoexplosionthanconventionalpowercement.Theresultsofthestudyarediscussedindetail.

DokuzEylul University, Buca 35160, I˙zmir, Turkey(2007)

Inthisstudy,refinedflyash(FA),pulverizedblastfurnaceslag(PS)andsilicafume(SF)wereanalyzedbytheadditionof PortlandCement(PC).ThePCwasreplacedbytheFAorPSbyspecifiedstandards.Basaltandquartzpowderhavebeenusedas compoundsinmixtures.Threedifferenthealingmethods(standard,autoclaveandsteamcuring)havebeenappliedto the specimens.Thisisadepressingforce.Mixturesareover170MPa.Itseemsthatthesecompoundscanbeusedfortheproduction ofactiveconcrete(RPC)andothermodifications.

S. Abbas1), M. L. Nehdi2),*, and M. A. Saleem1)(2016)

A review of the literature reveals that the rapeutic regimens and dosage of fiber are key factors in controlling illness mechanicalanddurableequipmentoftheUHPC.Currently,UHPCapplicationsinconstructionareverylimitedduetoithigh initialcosts,lackofcontractorexperienceandlackofwidelyaccepteddesignconditions.However,shesupportedhimresearch progressinproducingUHPCusinglocallyavailablematerialsundernormalmedicalconditionsshouldreduceitsassetscosts. ThecurrentchallengesregardingtheimplementationofUHPCincompletebuildingsarehighlighted.Thisstudyistryingtohelp engineers,consultants,contractorsandotherconstructionindustrystakeholderstobetterunderstandtheuniquefeaturesand UHPCskills,whichshouldseparatethissolidandsustainableconstructionmaterial.

Ultra-high-performanceconcrete(UHPC)isanewclassofconcretebuiltinFrancein1990swithhighfeaturesincludinghigh performance,highpressurestrength,increasedductility,andhighresistancetoenvironmentalattacks.UHPCiswidelyusedin domesticandinternationalconstructionmarketsintheconstructionofhigh-rise,durablebuildingsfront/fixedbridges,marine applications, aviation, and defense due its excellent mechanical properties, and good long-term performance. This study highlightsthefindingsofthelatestresearchonUHPChybridprojects,newandsolidconcretestructures,aswellascurrent applicationsofUHPCintheconstructionindustryincludingcertainbridgeapplications.ApartfromthebenefitsofUHPC,many obstaclesexistexistingonesthataredelayingtheexpansionofUHPCapplicationintheconstructionindustryincludinglackof designcodesandspecificationofUHPCperformancemeasurement,specialneedbrushing,blending,andhealing.Thisstudy assists different construction participants in understanding different aspects,benefits, and barriers to increasing UHPC applications.AnalysisofUHPCwillhelpexpanditsglobalmarketshareinglobalconstructionmarkets.

3. CONCLUSIONS

UltraHigh-strengthconcrete(UHSC)offersthebeststructuralengineeringstructures,suchashighpressureandstrong strength, high durability, better durability, compared to standard conventional strength concrete (NSC). The significant increaseinproprietaryUHSCcompositesisduetotheintegrationofrandomsteelfiberswithhighstrength,asmallpercentage

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 09 Issue: 08 | Aug 2022 www.irjet.net p-ISSN: 2395-0072

ofsilicatoincreasethebindercontentandmixthecompressivestrength,aswellastheuseofarelativelyhighvolumeofhigh density.waterreducerstomaintaintheflowingandpassingpowerofthemixtureatalowrateofwatertothebinder.Nonproprietaryblendsarebeingdevelopedwithacomparativelycompellingforceforafractionofthecombinedcostofownership. Reducedcostofgoodsfornon-proprietarymixturesaremainlyduetotheeliminationofhigh-strengthsteelfibersandtheuse ofeconomicallyexpandedcementmaterials.Effectivenon-patentmixturesarematchedwithUHPCpatents.However,nonownershipcombinesstrongstrength,fracturemodulus,andmodulusofelasticitycomparabletohybridpropertiesduetothe absenceofsteelfibers,andthelackofstrengthaftercrackingformedbyhigh-qualityfibers.So,theextrapartreinforcementis requiredwhenusingnon-proprietarymixturesincludingprestressfibersandprecastshearreinforcement/prestressbridges. Despitetheircost,UHSCblendsarecurrentlybeingusedforconstructionapplicationsthatincludehigh-risebuildings,long spanconstructionbridgesbridges,defense,aviation,andmaritimeuseduetoUHSCcombineshighdurabilitywithreduced maintenancerequiredduringtheprojectlifeperiod.

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