IS 2720-2 (1973): Methods of test for soils, Part 2 ...

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2 > 0 B Bhart hari N ti atakam Knowledge is such a treasure which cannot be stolen Invent a New India Using Knowledge IS 2720-2 (1973): Methods of test for soils, Part 2:Determination of water content [CED 43: Soil and FoundationEngineering]IS :2720(Part II) -1173(Reaffirmed2010)IndianStandardMETHO DSOF TEST FORSOILSPARTIIDETERMINATIONOFWATERCONTEN T( SecondRevision) ,9 BAHADURSHAHZAFARMARGNEWDELHI110002Gr5 July 1913 ISI2720(PartII) 1973 IndianStandardMETHODSOF TESTFORSOILSPARTIIDETERMINATIONOFWATERCO NTENT(SecondRevision)SoilEngineeringSect ionalCommittee,DDO 23 ChairmanhopDIMEIBMOHANRejw,sIntingCentra lBuildingResearchInstitute(CSIR),Roorkee UniversityofJodhpur,JodhpurCementationCo Ltd,BombayIrrigation&PowerResearchInstit ute,AmritsarInpersonalcapacity(P820)New~ /ipor,)Calcutta53)HindustanConstructionC o,BombayIrri,ationResearchInstitute,Khag aul,PatnaIndianGeotechnicalSociety,NewDe lhiCentralWater&PowerCommission,NewDelhi SHR!

3 !(AllmuJII) ,PublicWorbDepartment,GovernmentofPunjab (.Continrutl",.pa"2 )CentralBuildingResearchInstitute(CSIR), RoorkeeSHRID. (Aillmat,)JOINTDIRECTORRUBARCH(FE).Railw ayBoard( MinistryofRailways)RDSaDEPUTYDJREaroRRES EARCH(SOIL~iECHANICI),RDSO( ) 'FoundationEngineeringLtd;antiHazaratItC o,BombaySURtA. (CENTRALSOILMaCHANICIRESEARCHSTATION)DEP UTYDIRKCTOR(CSMRS)(AltmuJtI) , (AltmuJu)SR.'V. , (AltmuJII)DRJQ,BALALIE ngineeringResearchLaboratory,HyderabadSn arK. (Altemat )SHRIG. "n6er, (AltmuJII) (I)Ctlp~II'" (XIVof1957)andreproductioninwholeorinpar tbyanImeansexceptwithwrittenpormiuioDoft hopublisherahallbedeemedtobeaDlDrriDleme DtorcopyriahtUDderthesaidAct. ISa2720 (PartU ) 1973 DealenofUttarRtpreslntingConcreteAssocia tionofIndia,BombayInstitutionofEngineers (India), (Allerna',) ,GovernmentPradeshSHRlD. (Altnnat,) ]tTHASIUHA, (&.fJjficioMtmbn)Director( CivEogg)MAJK. M. (Alternate)SUPERINTBNDINOENGINEER(PLAN-C oncrete&SoilResearchLaboratory,PublicWor ksNINOANDOSSIONCIRCLE)Department,Governm entofTamilNaduEXECUTIVEENGINEERINC".

4 ~RGE(SOILMaCHANICS&.RUEARCHDIVISION)(Alt ernat,)SHRJC. (ContinUldfrompailJ )Member,SHRJM. (Alternat') (CSIR),NewDelhiRUBARCHQnlC&RBuildings&Ro adsResearchLaboratory"PublicWorksDepartm ent,GovernmentofPunjabEngineer-In-Chief' eBranch,ArmyHeadquarters(AlterlUJtI)Cent ralBoardofIrrigation&Power,NewDelhiUnive rsityofRoorkee,RoorkeeIrrigationResearch Institute,RoorkeeRoadsWing(MinistryofShi pping&Transport)S,c" (CivBngg),lSISoilTestingProceduresandEqu ipmentSubcommittee,BDC23:3 UnivenityofJodhpurtJodhpurPROPAuySINOHMn nb" (CSIR), (MinistryofShipping&Transport)SHRIA. (AlurNlu)Da A. , ,Khagaul,PatnaDmBaroa(CSMRS)CentralWater &. (CSMRS)(Allmlall) 'SyndicatePrivateLtd,CalcuttaSHillN. (Allmld16)SHIUS. ~ ,PublicWorbDepartment,GovernmentofPunjab K'I') AOOAaWA:.. ~fmUaII2 (PartII) ( SecondRe~ (Pall4,elaus ):a)Informaltall/I,ftrslcolumn-Substitut ethefollowinrfortheeJEist-ingmatter:c425 ,.mISSieve2-mmISSieve4-75-mmISSieve9-50- mmISSieve19-mmISSieve37eS-mmISSievetb)No l,I -SubstitutethefollowingfortheexistingDot e: - ,$1'IS: 460 (PartI)-1978t' (Pog,4, ,with"t'mark)-Substitutethefollowing(ort heexistingfoot-note: tSpecificationfort~, (J n~rIR.

5 (PtJg,8,"GUS,) ):a)1,,!ormmla61t,firstcolumn-Substitute theroJlowingfortheexist-ingmatter:,2-mmI SSieve19-mmISSieve b)Not,1---Substitutethefollowingfortheex istingnote: - ,,.IS : 460 (PartI)-1978-I.(Pall8,!tJot-,.ot,willa mark) -Substitutethefollowinlfortheexistingfoo t-note: -Specificationfort., ' ('-rrtJiriM).'1 (Pdl't4,eltJIU,28.',NoI,) -Substitute note: No,..-Ifthesamplei, ~nt.'hatii, ~.IeorclayeylOilsandpaltel, 'hebod, (PilI'15,,laas, ,NOlI)-Substitutethe following fortheexilt-ingnote: d,placethethreeImall.,andODebil, , , ,theunithorisonta' '( ~ ( ). (BDe2~) , IS&2720(PartD ) 1975 IndianStandardMETHODS OF TESTFORSOILSPARTIIDETERMINATIONOFWATERCO NTENT(SecondRevision) ,(PartII)(SecondRevision)wasadoptedbythe IndianStandardsInstitutionon 22 March1973,afterthedraf]finalizedl> thedeterminationofdifferentcharacteristi csofsoilsandalso forfacilitatingcomparativestudiesofthere sults,theIndianStandardsInstitutionisbri ngingoutthisIndianStandardmethodsoftest forsoils(IS:2720) , the ,observedorcalculated,is to beroundedoff,itshall- (STANDARDMETHOD) (""11I).

6 ISI2720(PartD ) ,thedefinitionsgiveninIS:2809 ($" ). ,withinteriorofnon-corrodingmaterialtoma intainthetemperatureat110:I:5 ,,. -Drierthe1011, thequantityrequiredforgoodrepresentation ,whichisinfluencedbythegradatioaandthema ximumsizeofparticles,andontheaccuracyofw eighing,Thefollowingquanti-tiesarerecomm endedforgenerallaboratoryuse:Si~,ofParti n,sMinimuma-lUJnti9ofSoilMor, "emlPassin,Specim,,,to11,Ta!, ,dryandweigh(WI.).Taketherequiredquantit yof the soilspecimenin thecontainercrumbledandplacedlooaely, ,mbollreladaato1011eqtaeen.(jim,..,.). (rrrIiIItI). ISI2720(PartII) 1973andweighwithlid (WI).Thenkeepitinanovenwiththelidremoved ,andmaintainthetemperatureoftheovenat110 :I:SoC(seeNote).Drythespecimenintheovenf or 24 (WI) 5 , ~fortheselOiI. canbeobtainedbydryingin an :W,-WI00w==' ,WI=massofcontainerwithlidwithwetsoiling ,WI:::massofcontainerwithlidwithdrysoil ing,andWI=== (rD)ofthesoilshallbereportedto , (SUBSIDIARYMETHOD) arapidalternativetothemethodgiveninSecti onIbutislessaccurateandmoresuitableas '.

7 ,5 ISI2720 (PartD) , { aconvenientsize ,asthecasemaybe,dryandweigh( WJ) .Taketherequiredquantityofthesoilspecime ninthecontainercrumbledandplacedlooselya ndweigh(n'I).Adda (steNote).Placethecontainerwiththelidrem ovedor thetray() ,Duringheating,thespecimenshallbeturnedf requently'andthoroughlywiththepalettekni feto assisttheevaporationofwater,carebeingtak ento seethatno soil islost intheprocess;Dr'Jthespecimentoconstantma ssindicatedbythedifferencebetweentwocons ecutivemassesofthecontainerwithlidorthet raywiththedriedspecimentakenatsuitablein tervalsafterinitialdrying, ,removethecontainerorthetrayfromthesand- bath,'coolandweigh(W,), "-Avoidoverheatin~.Aconvenientmethodofde tectingoverheatingofthesoil :WI -W,100 WaslA'WX'Ya-16 18I2720 (PartII) 1173wherew=watercontentpercent,WI=-masso fcontainerwithlid(ortray)withwetsoiling, (ortray)withdrysoiling,andWJ:=massofcont ainerwithlid(ortray) (SUBSIDIARYMETHOD) field , ,gypsum, em ,whichisinfluencedbythegradationandthema xi-mumsizeofparticles, ISI2720 (Part0 ) 1973quantitiesarerecommendedforgeneralus e:SkIofParti,lllM0"Than90p,,'11 IlPassi"g2-mmISSieve20-mmISSieveMinimumQ pQ"ti~ofSoilSp"immtob TdenforTestMassing30300 NoTS1 - "IS:460 -Drierthesoil,thegreaterahall be should not beusedinan.}

8 , ,dryandweigh (W1) .Taketherequiredquantityofthesoilspecime nintheevaporatingdishandweigh(J :).Pourover the soilmethylatedspiritattherateofaboutonem illilitretoreverygramofsoiltakensothatth esoil any surfacewhich knife,carebeingtakento thedishto coolandweighitwiththecontents( Wa). , ,WI=-mass ofdishwithwetsoilin g,WI==massofdishwithdrysoil ing. andWI-= (fWIiI,tl).8 ISI2720 (Partn ) from ascale, to 30 mindependinguponthetypeofsoilandquantity ofwaterpresent, 3percentwatercontentin caseofgranularsoilsandabout0-8 toJper-centincaseofclay ,theinfra-redlamp, V, 50 cycle, ,atorsionbalance, ,from1to100percentwatercontentin0' thismoisturemeteriscalibratedtouse25 gofsoil,themaximumsizeofparticlepresenti nthespecimenshallbelessthan2mm, '.1 Keepthetestsamplesalwaysinsuitablecontai nerssothatthewatercontentto ISI2720(PartD ) 1"73 TOIRLAMPTO230 VSINGLEPHASE50c/. ~earm12. Stopper D,# (forheatcontrol) (0-100 PERCENT)-PLAN(COVERREMOVED)10 lSI2720(PartD ) 117329tTO~30 VSINbl~ ~PHASE ' ((orheatcontrol) (0-100 PERCENT) ISI2720 (PartII) , , ,thusprestressingthewirethroughanamounte qualto 100percent(thisrepresentstheamountofunba lance).)

9 'indexmark(approximately25 gofthematerialwill beneededinoneoperation). 'in, itisdesiredthatthetemperatureofdryingisa round110 watchonthecolumnofmercuryonthethermomete rwhenthethermometerrecordsatemperatureof 105 nomorerise inthetemperaturebeyond110 0andthetemperatureinthehOUlingismaintain edat110 5 aparticularsample, , , ,thatis, freshsampleusing "content(m) (w)onthedryweightbasisshallbecalculatedu follows:mw-100 _mX100percent12 IS12720(PartIt). (wet)massof soil isobtainedandthesameis ureVe el-withclampforscalingcup,andagaugecalib ratedinpercentagewatercontent(se Fig. 3 ). (calciumcarbide). (CalciaDiCarbide) ; level scoopfulofabsorbent(calciumcarbide)halfw ayinside ISI2720 (Partn ) 197310sI,D"cripti, , U-clamp11. (rom sample orabsorbent,bringthe U-clamproundandclampthecuptightlyinto ~sample isbulkyreversetheaboveplacements,thatii, nthecaseofclayeysoilsandpastes,Placethe, .maJJersteel balls in the cupalongwiththesampleandlargeroneinthebo dyalonlwiththe (exceptwhenthesteelballs areused)shakethe moisturemeterupanddownvigorously for5 seconds,thenquicklyturnitsothatthegaugei s upwards,give ataptothebodyofthemoisturemetertoensuret hatall thecontentsfallintothe therapidIf ISI2720 (Partn ) 1973moisturemeterdownwards,againshake(or 5seconds,thenturnitwith~.))

10 For (Uluallythiltakes4to8min). (awayfromtheoperator)byopeningtheclampsc rewandtakingthecupout, ( m ) ,thewatercontent(w )onthedrymassbasisshallbecalculatedasfol lows:mw= (100 _m) ;asaresulttheabsorbentsuffersdeteriorati onandwillgiveresults00' ISt2720 (PartII) 1973 APPENDIXA( )PROFORMAFORRECORDOFRESULTSOFTESTFORTHED ETERMINATIONOFWATERCONTENTOFSOILD etailsofsoilsample: ().Testedby:Ovendrying:Sand-bath: 'in ~V3' ' (Wa-WI)'ing-------~ !ofmoisture(WI -W"J, ~t-WW~X100%3-116 (ConlinUltlfrom/J'JII2 )M,mh"sSURIG. (PartII ) 1973Re!Jr,smIin,CentralBuildingResearchI nstitute(CSIR).RoorkeeSHRIAMAHSINOH(Alln fttJII)DRV. V. ,NewDelhiSRRIK. (Alll1nal,)MAJK. M. ('sBranch, , (India)PvtLtd,NewDelhiSURIM. (Alternat )17 BUREAUOFINDIANSTANDARDS5 36 27331772 61 7162436231083{6 34 716 98 32{21687621 82 926 2305f62104\62117218433 16 4141 25 1941 29 166 32 92 96 Southern: ,MADRAS600113tWester" :ManakaraV8,E9 MIDC,Maral,Andher;(East ),BOMBAY400093S,anch Offices:'Pushpak.))}}