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A SEMINAR ON

BYKAVITHA B.S(4JC00CV016)

S.J.C.E.MYSORE

HIGH PERFORMANCE HIGH PERFORMANCE CONCRETECONCRETE

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INTRODUCTIONINTRODUCTION

•CONCRETE-MOST WIDELY USED CONCRETE-MOST WIDELY USED

CONSTRUCTION MATERIALCONSTRUCTION MATERIAL

•ANNUAL CONSUMPTION-100 MILLION mANNUAL CONSUMPTION-100 MILLION m33

•CONVENTIONAL CEMENT CONCRETE IS CONVENTIONAL CEMENT CONCRETE IS

DEFICIENT OFDEFICIENT OF

•DURABILITYDURABILITY

•TIME CONSUMPTIONTIME CONSUMPTION

•ENERGY ABSORPTIONENERGY ABSORPTION

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HIGH PERFORMANCE HIGH PERFORMANCE CONCRETECONCRETE

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SALIENT FEATURES OF HIGH SALIENT FEATURES OF HIGH PERFORMANCE CONCRETEPERFORMANCE CONCRETE

•HIGH WORKABILITYHIGH WORKABILITY

•HIGH COMPRESSIVE STRENGTHHIGH COMPRESSIVE STRENGTH

•SEVERE ENVIRONMENTSEVERE ENVIRONMENT

•COSTCOST

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DEFINITIONDEFINITION

““A CONCRETE WHICH MEETS SPECIAL A CONCRETE WHICH MEETS SPECIAL

PERFORMANCE AND UNIFORMITY PERFORMANCE AND UNIFORMITY

REQUIREMENTS THAT CANNOT ALWAYS BE REQUIREMENTS THAT CANNOT ALWAYS BE

ACHIEVED ROUTINELY BY USING ONLY ACHIEVED ROUTINELY BY USING ONLY

CONVENTIONAL MATERIALS AND NORMAL CONVENTIONAL MATERIALS AND NORMAL

MIXING,PLACING AND CURING PRACTICES”MIXING,PLACING AND CURING PRACTICES”

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SELECTION OF MATERIALSSELECTION OF MATERIALS

SELECTION OF SUITABLE INGREDIENTSSELECTION OF SUITABLE INGREDIENTS

DETERMINATIOM OF QUANTITIESDETERMINATIOM OF QUANTITIES

CAREFUL QUALITY CONTROLCAREFUL QUALITY CONTROL

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CEMENTCEMENT

LITTLE AMOUNT OF CLITTLE AMOUNT OF C33AA

FINELY GROUNDFINELY GROUND

FINE AGGREGATESFINE AGGREGATES

RIVER SAND AND CRUSHED STONESRIVER SAND AND CRUSHED STONES

COARSER SANDCOARSER SAND

MINIMUM VOID RATIOMINIMUM VOID RATIO

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COARSE AGGREGATECOARSE AGGREGATE STRONGESTCOMPONENTSTRONGESTCOMPONENT

SIZE NOT EXCEEDING 20MPaSIZE NOT EXCEEDING 20MPa

CUBIC IN SHAPECUBIC IN SHAPE

NOT FLAKY OR ELONGATEDNOT FLAKY OR ELONGATED

WATERWATER

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CHEMICAL ADMIXTURESCHEMICAL ADMIXTURES

IMPROVE WORKABILITYIMPROVE WORKABILITY

DECREASE IN WATER REQUIREMENTDECREASE IN WATER REQUIREMENT

TYPES OF CHEMICAL ADMIXTURES:TYPES OF CHEMICAL ADMIXTURES:

PLASTICIZERSPLASTICIZERSSUPER PLASTICIZERSSUPER PLASTICIZERSRETARDERS RETARDERS AIR ENTRAINING AGENTSAIR ENTRAINING AGENTS

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MINERAL ADMIXTURESMINERAL ADMIXTURESCEMENT MATRIX-DENSER AND CEMENT MATRIX-DENSER AND STRONGERSTRONGER

TYPES OF MINERAL ADMIXTURESTYPES OF MINERAL ADMIXTURES

FLY ASH FLY ASH

SILICA FUMESILICA FUME

CARBON BLACK POWDERCARBON BLACK POWDER

GYPSUM BASED MINERAL GYPSUM BASED MINERAL ADMIXTURESADMIXTURES

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BEHAVIOUR OF FRESH HPCBEHAVIOUR OF FRESH HPC

•WORKABILITYWORKABILITY

VERY GOODVERY GOOD

PUMPED VERY WELLPUMPED VERY WELL

WITHOUT SEGREGATION AND WITHOUT SEGREGATION AND VOIDSVOIDS

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SETTING TIMESETTING TIME

DEPENDS ON APPLICATIONDEPENDS ON APPLICATION

WATER REDUCING ADMIXTURESWATER REDUCING ADMIXTURES

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BEHAVIOUR OF HARDENED HPCBEHAVIOUR OF HARDENED HPC

•SHORT TERM PROPERTIES:SHORT TERM PROPERTIES:

COMPRESSIVE STRENGTHCOMPRESSIVE STRENGTHTENSILE STRENGTHTENSILE STRENGTH

•LONG TERM PROPERTIES:LONG TERM PROPERTIES:

DURABILITYDURABILITYPERMEABILITYPERMEABILITY

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STRENGTHSTRENGTH

CONSTITUENT MATERIALSCONSTITUENT MATERIALS

METHOD OF TESTINGMETHOD OF TESTING

RATE OF LOADINGRATE OF LOADING

CURING TECHNIQUESCURING TECHNIQUES

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COMPRESSIVE STRENGTHCOMPRESSIVE STRENGTH

28 DAYS STRENGTH UPTO 80 Mpa28 DAYS STRENGTH UPTO 80 Mpa

90 DAYS STRENGTH UPTO 130 Mpa90 DAYS STRENGTH UPTO 130 Mpa

FUTURE-140MPaFUTURE-140MPa

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TENSILE STRENGTHTENSILE STRENGTH

GOVERNS THE CRACKING BEHAVIOURGOVERNS THE CRACKING BEHAVIOUR

DIRECT TENSILE TESTDIRECT TENSILE TEST

SPLIT TENSILE TESTSPLIT TENSILE TEST

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DURABILITY CHARACTERISTICSDURABILITY CHARACTERISTICS

LOW PERMEABILITYLOW PERMEABILITY

STEEL PROTECTEDSTEEL PROTECTED

ABRASION RESISTANCEABRASION RESISTANCE

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WHEN TO USE HPCWHEN TO USE HPC

SEVERE EXPOSURE CONDITIONSSEVERE EXPOSURE CONDITIONS

INCREASE DURABILITYINCREASE DURABILITY

PREVENT DETERIORATION OF PREVENT DETERIORATION OF CONCRETE CONCRETE

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APPLICATIONSAPPLICATIONS

BRIDGESBRIDGES

HIGH RISE BUILDINGSHIGH RISE BUILDINGS

TUNNELSTUNNELS

PAVEMENTSPAVEMENTS

NUCLEAR STRUCTURESNUCLEAR STRUCTURES

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CASE STUDYCASE STUDY::JOIGNY BRIDGEJOIGNY BRIDGE

BUILT ACROSS RIVER YONNEBUILT ACROSS RIVER YONNE

THREE SPAN BRIDGETHREE SPAN BRIDGE

HEIGHT OF 2.2mHEIGHT OF 2.2m

WIDTH OF 15.8mWIDTH OF 15.8m

FRENCH CODESFRENCH CODES

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REDUCTION IN CONCRETE REDUCTION IN CONCRETE VOLUMEVOLUME

28 DAYS STRENGTH OF 70MPa28 DAYS STRENGTH OF 70MPa

PUMPINGPUMPING

SUFFICIENT SETTING TIMESUFFICIENT SETTING TIME

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CONCRETE STRENGTH-91.7MPa CONCRETE STRENGTH-91.7MPa AND 65.5MPaAND 65.5MPa

TENSILE STRENGTH-5.1MPaTENSILE STRENGTH-5.1MPa

FIRST BRIDGE WITH 60MPaFIRST BRIDGE WITH 60MPa

COMPLETED IN 1989COMPLETED IN 1989

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JOIGNY BRIDGE

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PETRONAS TOWERS

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NUCLEAR REACTOR, FRANCENUCLEAR REACTOR, FRANCE

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LA GRANDE ARCHE, PARISLA GRANDE ARCHE, PARIS

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THE RE ISLAND BRIDGE,FRANCETHE RE ISLAND BRIDGE,FRANCE

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THE GREAT HASSAN II MOSQUE,MOROCCOTHE GREAT HASSAN II MOSQUE,MOROCCO

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HIGHWAY BRIDGE, HONGKONGHIGHWAY BRIDGE, HONGKONG

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WATER TOWER WATER TOWER PLACE,CHICAGOPLACE,CHICAGO

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ADVANTAGESADVANTAGES

REDUCTION IN SIZE OF REDUCTION IN SIZE OF STRUCTURAL MEMBERSSTRUCTURAL MEMBERS

SPEED OF CONSTRUCTIONSPEED OF CONSTRUCTION

WORKABILITY AND WORKABILITY AND PUMPABILITYPUMPABILITY

ECONOMICAL MATERIAL IN ECONOMICAL MATERIAL IN TERMS OF TIME AND MONEYTERMS OF TIME AND MONEY

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HIGHER SEISMIC RESISTANCEHIGHER SEISMIC RESISTANCE

IMPROVED DURABILITYIMPROVED DURABILITY

ABRASION RESISTANCEABRASION RESISTANCE

HIGH TENSILE STRENGTHHIGH TENSILE STRENGTH

REDUCEDREDUCED MAINTENANCE COSTMAINTENANCE COST

ADVANTAGES(CONT..)ADVANTAGES(CONT..)

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LIMITATIONSLIMITATIONS

AN EXTENDED QUALITY CONTROLAN EXTENDED QUALITY CONTROL

COSTCOST

SPECIAL CONSTITUENTSSPECIAL CONSTITUENTS

MANUFACTURED AND PLACED MANUFACTURED AND PLACED CAREFULLYCAREFULLY

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CONCLUSIONSCONCLUSIONS

DURABILITY CONSIDERATIONSDURABILITY CONSIDERATIONS

INITIAL COST IS HIGHINITIAL COST IS HIGH

REDUCED SIZE OF STRUCTURAL REDUCED SIZE OF STRUCTURAL MEMBERSMEMBERS

PRECAST PRODUCTSPRECAST PRODUCTS

EFFECTIVE UTILIZATION OF EFFECTIVE UTILIZATION OF INDUSTRIAL WASTESINDUSTRIAL WASTES

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REFERENCES:REFERENCES:

YVES MALIER, “HIGH PERFORMANCE YVES MALIER, “HIGH PERFORMANCE CONCRETE”, E&FN SPON, LONDONCONCRETE”, E&FN SPON, LONDON

A.M.NEVILLE, “PROPERTIES OF CONCRETE”, A.M.NEVILLE, “PROPERTIES OF CONCRETE”, PEARSON EDUCATION PTE LTD, ENGLAND.PEARSON EDUCATION PTE LTD, ENGLAND.

DR R.JAGADISH, “HIGH PERFORMANCE DR R.JAGADISH, “HIGH PERFORMANCE CONCRTE”, PROCEEDINGS OF SHORT TERM CONCRTE”, PROCEEDINGS OF SHORT TERM TRAINING PROGRAM ON ADVANCES IN TRAINING PROGRAM ON ADVANCES IN CEMENTIOUS MATERIALS AND TESTING.CEMENTIOUS MATERIALS AND TESTING.

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