International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056
COST EFFECTIVENESS OF HIGH PERFORMANCE CONCRETE
Disha Bipinchandra Sonawane1 , Prof. N.B. Gawali21 Student, Department of Civil Engineering, SND College of Engineering & Research Center Babhulgaon Tal. yeola Dist. Nashik
2Professor, Department of Civil Engineering, SND College of Engineering & Research Center Babhulgaon Tal.yeola Dist. Nashik ***
Abstract:-
HighPerformanceConcreteisalogicalprogressionofcementconcreteinwhichtheelementsareproportionedandchosento contribute effectively to the various qualities of cement concrete in both the fresh and hardened phases. One of the characteristicsofHighPerformanceConcretethatgivesconsiderablestructuralbenefitsisitsincreasedstrength.Concrete, steelreinforcement,andformworkarethethreekeycomponentsthatcontributetothecostofastructuralpart.Thisresearch comparestheseprimarycomponentswhenhigher gradeconcreteisutilisedinthedesignandconcludesthathigh strength concreteisthemostcost effectivewaytoconstructload bearingpartsandtransportaverticalloadtothebuildingfoundation throughcolumns.
Key Words:HighStrengthConcrete,Scope,Methodology,ETABS.TopofForm
INTRODUCTION :
VariousstudieshavedescribedtheadvantagesofutilisingHighPerformanceConcrete,specificallythestructuraladvantagesof employinghighstrengthconcrete.Theseincludeareductioninmembersize,areductioninself weightandsuperimposedDead Loadwithaccompanyingsavingsduetosmallerfoundations,areductioninform workareaandcostconstructionofhigh rise buildings with accompanying savings in real estate costs in congested areas, longer spans and fewer beams for the same magnitudeofloading,reducedaxialshorteningofcompressionsupportingmembers,andareductioninthenumberofsupports andthesupportingmembersthemselves.Lowcreepandshrinkage,improvedlong termserviceperformanceunderstatic, dynamic,andfatiguestress,andlowweightandcostofthemajorityofstructuresTheuseofvariouschemicalandmineral admixturestoachievehighstrengthconcreteisalsoastudytopic,andseveraldesignmixmethodsandtrialmixprocedures havebeenofferedforthecreationofhighstrengthconcrete.Thevariousparametersthatgovernthestrengthofconcrete,such as the various constituent materials required, their properties, the proportions in which they are to be used, and the specificationsfortheproductionandcuringtechniquetobeusedforthedevelopment ofhighstrengthconcrete,arealsoa subjectofcontinuousresearchforthedevelopmentofhighstrengthconcrete,whichisnowbeingseen.
Objective of Study: Tocomparethecostofbuildingastructurewithhighperformanceconcretetothecostof buildinga structurewithnormalconcretegrades.
SCOPE: ThepurposeofthisstudyistodeterminethecostefficacyofdevelopingstructureswithHighPerformanceConcreteby comparingthecostsofconcreteM20andM40usingalaboratory createdconcretemix.Thedifferencesinthequantityof concreteandsteelrequiredfordifferentbeamsandcolumnshavebeencomputed,examined,andcomparedwithrespectto theircostinthedesignofamulti storyreinforcedbuildingutilisingbothM20andM40inStaadPro2018.
LITERATUREREVIEW:
TheconceptofpackingdensityisintroducedbyHenryH.C.WongandAlbertK.H.Kwan(DepartmentofCivilEngineering,The UniversityofHongKong,HongKong)(5)asafundamentalpremiseforbuildingHPCmixes.Theconceptisfoundedonthebelief thatmaximisingthepackingdensitiesofaggregateparticlesandcement materialscanimprovetheperformanceofaconcrete mix,anditproposesapreliminaryHPCdesignapproachcalledthree tiersystemdesign.
Papayianni*,G.Tsohos,N.Oikonomou,andP.Mavria(DepartmentofCivilEngineering,AristotleUniversityofThessaloniki,54 124Thessaloniki,Greece)(6)investigatedtheeffectofsuperplasticizertypeandmixdesignparametersonsuperplasticizer performanceinconcretemixturesforhigherstrengthconcrete.
Volume: 09 Issue: 06 | June 2022 www.irjet.net p ISSN: 2395 0072 © 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page836 `
International Research Journal of Engineering and Technology (IRJET)
e ISSN: 2395 0056
Volume: 09 Issue: 06 | June 2022 www.irjet.net p ISSN: 2395 0072
1 METHODOLOGY
4 Details of concrete mix design for grade M20
M20MixDesignBasicRequirements
M20'smixdesign
PPCcementisthetypeofcementused.
Aggregatenominalsize:20mm 75mmslumpisworkable.
Cementcontentmaximum:450kgpercum
MaterialCharacteristics
1 Cementspecificgravity2.86
2 Specificgravityofcoarseaggregate(underSSDconditions):2.68
3 FineaggregateSpecificGravity(SSDConditions):2.63
4 Waterabsorptionrateofcoarseaggreagate:0.68%
5 Fineaggregatewaterabsorption:1.12percent
6 Moisturecontentofcoarseandfineaggregatesisnil.1.08
SpecificgravityofchemicaladmixtureformixproportioningaccordingtoISCode10262:2019
AccordingtoIS10262:2019Pageno.3tableno.1and2
fck+1.65xstandarddeviation
Fck=fck+1.65xstandarddeviation
Fck=fck+1.65xstandarddeviationF
Fck=20+1.65x4=26.60N/mm2
Fck=20+5.5=25.50N/mm2 Fck=20+5.5=25.50N/mm2
As perIs 10262:2019,free w/c ratio requiredfor targetstrength of 26.60 N/mm2 is 0.58(curve2) which is higher than maximumvalueof0.55(AsperIS456), Asaresult,thew/cratiois0.55.
Hence192/0.55=349Kg/Cumulus (minimumnecessary=340Kg/Cumulus)
Water=349*0.55=192Kg/cum
Volumeofcement=349/(2.86*1000)=0.122cum
Watervolume=192/(1*1000)=0.192cum
Entrappedairvolume=0.005cum
Cumulativevolumeofcoarseandfineaggregate=1 (0.122+0.192+0.005)=0.681 cumulativevolumeofcoarseandfineaggregate coarseaggregatevolume=0.66perunitvolume
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page837 `
International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056
Volume: 09 Issue: 06 | June 2022 www.irjet.net p ISSN: 2395 0072
Fineaggregatevolume=0.34perunitvolume
Cumulativevolumeofcoarseaggregate=0.681*0.66=0.449
Coarseaggregateweight=0.449*2.68*1000=1203.00Kg/cum
Fineaggregatevolume=0.681*0.34=0.232sum
Fineaggregateweight=0.232*2.63*1000=610.00Kg/cum
M20Cement(PPC)rateanalysis:349kg*450per50kgbag=3150/
Cumulativefineaggregate=0.232*2700=626
0.449*2700percum=1212coarseaggregate
RateofM20gradeconcrete=Rs.4988percum
Grade of concrete Rate (Rs.per cum)
M20 4988 M25 5245 M30 5752
1) M35 5300
2) M40 5640
Introduction to ETABS
Areinforcedconcretebuildingframe,whichwasassumedtobeacommercialbuilding(locatedinDhule),wasanalysedand designedusingETABSusingconcretegradesrangingfromM20toM40,andthebeamandcolumnconcreteconsumption,steel reinforcementrequired,andcostaspectsforconcreteconsumptionandsteelreinforcementrequiredwerecompared.
© 2022,
|
|
Certified
| Page
`
IRJET
Impact Factor value: 7.529
ISO 9001:2008
Journal
838
Figure 1 Key plan of slab beam of building ( at second floor)
International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056
Volume: 09 Issue: 06 | June 2022 www.irjet.net p ISSN: 2395 0072
Figure 3 Generation of member properties
©
|
|
Certified Journal | Page
`
2022, IRJET
Impact Factor value: 7.529
ISO 9001:2008
839
Figure 2 Front view of building ( Elevation )
International Research Journal of Engineering and Technology (IRJET) e ISSN: 2395 0056
Volume: 09 Issue: 06 | June 2022 www.irjet.net p ISSN: 2395 0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page840 `
Figure 4 3 D view axial force diagram
Figure 5 Design of beam member using RCDC
International Research Journal of Engineering and Technology (IRJET) e ISSN:2395 0056
Volume: 09 Issue: 31 | May 2022 www.irjet.net p ISSN:2395 0072
Discussion & Conclusion
AcubicmetreofHighPerformanceConcretecostsmorethanacubicmetreofregularconcreteatthemoment.Toensurethat the concrete reaches the stipulated strength and performance, High Performance Concrete requires greater quantities of componentssuchascementandhigh rangewater reducers,whichraisesthecostofHighPerformanceConcrete.However, usingconcretewithhighercompressivestrengthsincolumnsandotherload bearingelementsisaneconomicallyviableoption. Furthermore,theuseofHighPerformanceConcrete,whichhasahigherconcretecompressivestrengththanconventional concrete,hasbeenfoundtoprovidestructuralbenefits,suchasmoreefficientfloorplansduetosmallerverticalmembers (columns),andalsoprovestobethemostcost effectiveoptionbyreducingboththetotalvolumeofconcreteandthetotalcost ofconstruction.
CONCLUDING REMARKS
1. Aflexuralmembermadeofhighperformanceconcrete(M40)cansaveupto2.23percentofitsweightwhencomparedto thesamecrosssectionmadeofnormalgrade(M20)concrete.
2. Comparedtosteelandconcrete,thedesignofaflexuralmemberwithalowercrosssectionwillcostnearly15%more.
3.Tosavemoney,it'sbesttocastaflexuralelementwithhigh strengthconcreteonlywhenthecrosssectionsaren'tchanged (i.e.thesameasforregulargrade).
4.Whenitcomestoaxialmembers,utilisinghighstrengthconcretecansaveyouupto16.21%.(ascomparedtothesame sectionwithnormalgrade).
REFERENCES
"ReinforcedConcreteDesign,"byUnnikrishnaPillaiandDevdasMenon,Tata+McGraw Hillpublishingbusinesslimited.
N.KrishnaRaju,CBSPublishers&Distributors,Delhi,"AdvancedReinforcedConcreteDesign."
. N.KrisnnaRaju,CBSPublishers&Distributors,Delhi,"DesignofReinforcedConcreteStructures."
. Bureau of Indian Standards, New Delhi, IS:456 2000 "Indian Standard code of practise for plain and reinforced Cement Concrete."
. SP:16 1980,BureauofIndianStandards,NewDelhi,"DesignAidsReinforcedConcrete"toIS:456 1978.
IS:875 1987 (parts 1 5), Bureau of Indian Standards, New Delhi, "Code of practise for Design Loads in Buildings and Structures."
. "AnalysisanddesignproposedfemalesHostelsinJITCAMPUS",InternationalResearchJournalofEngineeringandTechnology (IRJET),BharathH.M,SachinPD(2017).
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page841