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Angularity Number of Coarse Aggregate (Is_2386-Part 1-1963)

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Transportation engineering, civil engineering, pavement tests, angularity number of aggregates
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You are here: Home ∼ 2013 ∼ May ∼ 08 ∼ ANGULARITY NUMBER OF COARSE AGGREGATE (IS:2386Part 11963) ANGULARITY NUMBER OF COARSE AGGREGATE (IS:2386Part 11963) Published by Suryakanta on May 8, 2013 | 2 Responses Objective For determination of angularity number of coarse aggregates. Reference Standards IS: 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Balance (010kg) Sieves (20,16,12.5,10,6.3,4.75mm) Metal cylinder Tamping rod Scoop Test Sample Preparation The test sample consist of aggregate retained between the appropriate pair of IS sieves Primary Menu ▼ Search ▼ SECONDARY MENU ▼ Reinforcing Civil Engineers
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  • 3/20/2015 ANGULARITYNUMBEROFCOARSEAGGREGATE(IS:2386Part11963)

    http://civilblog.org/2013/05/08/angularitynumberofcoarseaggregateis2386part11963/ 1/12

    Youarehere:Home2013May08ANGULARITYNUMBEROFCOARSEAGGREGATE(IS:2386Part11963)

    ANGULARITYNUMBEROFCOARSEAGGREGATE(IS:2386Part11963)PublishedbySuryakantaonMay8,2013|2Responses

    ObjectiveFordeterminationofangularitynumberofcoarseaggregates.

    ReferenceStandardsIS:2386(PartI)1963Methodoftestforaggregatesforconcrete(PartI)Particlesizeandshape.

    Equipment&ApparatusBalance(010kg)Sieves(20,16,12.5,10,6.3,4.75mm)MetalcylinderTampingrodScoop

    TestSamplePreparationThetestsampleconsistofaggregateretainedbetweentheappropriatepairofISsieves

    PrimaryMenu Search

    SECONDARYMENU

    ReinforcingCivilEngineers

  • 3/20/2015 ANGULARITYNUMBEROFCOARSEAGGREGATE(IS:2386Part11963)

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    fromthefollowingsets

    PASSING RETAINED

    20mm 16mm

    16mm 12.5mm

    12.5mm 10mm

    10mm 6.3mm

    6.3mm 4.75mm

    Theaggregatetobetestedisdriedforatleast24hoursinawellventilatedovenmaintainedatatemperatureof100to110 C.

    Procedure1. Theaggregateiscompactedinthreelayers,eachlayerbeinggiven100blowsusing

    thestandardtampingrodatarateof2blows/secondbyliftingtherod5cmabovethesurfaceoftheaggregateandthenallowingittofallfreely.

    2. Theblowsareuniformlydistributedoverthesurfaceoftheaggregate.3. Aftercompactingthethirdlayer,thecylinderisfilledtooverflowingandexcess

    materialisremovedoffwithtempingrodasastraightedge.4. Theaggregatewithcylinderisthenweighed.Threeseparatedeterminationsaremade

    andmeanweightoftheaggregateinthecylinderiscalculated.

    Calculation

    0

  • 3/20/2015 ANGULARITYNUMBEROFCOARSEAGGREGATE(IS:2386Part11963)

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    Where,

    W=meanweightoftheaggregatefillingcylinder.

    C=Weightofwaterrequiredtocompletelyfillthecylinder(i.e.Volumeofcylinder)

    G =SpecificGravityoftheaggregate

    ReportsThemeanvalueofthreedeterminations,expressedtothenearestwholenumberisreported.

    Safety&PrecautionsUsesafetyshoes,mask&apronsatthetimeoftest.Thoroughlyclean&drythecontainerbeforetesting.Specialcareshouldbetakenthatnoouterairenterswhenusingthebalance.Aftertestsieveshouldbecleanbyasoftbrush.

    s

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    BuyBookMaterialsforCivil&HighwayEngineers

    2Responses

    rakeshkumarNovember19,2014at12:03am|Permalink|Reply

    Inangularitytestis2386part1TheCisweightofwater+cylinder..Intheformula67(100W/CG)

    SuryakantaNovember19,2014at2:55pm|Permalink|Reply

    C=Weightofwaterrequiredtofillthecylinder.Wedothisinordertomeasurethevolumeofthecylinder.

    Pleasecommentwithyourrealnameusinggoodmanners.

    LeaveaReply

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