JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY ANANTAPUR ANANTAPUR Pre-Ph.D CIVIL ENGINEERING (09PH01101) CONCRETE TECHNOLOGY Unit-I Cements and Admixtures: Portland cement – Chemical composition - Hydration, setting and fineness of cement – structures structures of hydrated cement – mechanical mechanical strength of cement gel – – water held in hydrate cement paste – Heat of hydration of cement – Influence of compound composition on properties of cement – tests on physical properties of cement – I.S. specifications – Different Different types of cements – Chemical Chemical Admixtures. UNIT – II II
Aggregates: Classification of aggregate – particle shape and texture – Bond, strength and other mechanical properties of aggregate specific gravity, Bulk density, porosity, absorption and moisture in aggregate – soundness of aggregate – Alkali Alkali – aggregate reaction I Thermal
properties – sieve analysis – Fineness modulus – grading curves – grading requirements – practical grading – Road Road note No. grading of fine fine and coarse aggregates gap graded aggregate – maximum maximum aggregate size. UNIT – III III
factors affecting workability – measurement measurement of workability by Fresh concrete: Workability – factors different tests – Effect of time and temperature on workability – segregation and bleeding – mixing and vibration of concrete – quality quality of mixing water. UNIT – IV IV
Hardened Concrete: Water/cement ratio-Abram’s law – Gel Gel space ratio – effective effective water in mix – Nature of strength of concrete – strength in tension and compression- Griffith’s hypothesis – factors factors affecting strength – autogenous healing – Relation Relation between compression and tensile strength – curing curing and maturity of concrete Influence of temperature on strength – Steam curing – testing of Hardened concrete – compression tests – tension tests – factors affecting strength – flexure flexure tests – splitting splitting tests – Non Non destructive testing methods. UNIT – V V
Elasticity, Shrinkage and Creep : Modulus of elasticity – dynamic modulus of elasticity – Poisson’s ratio – Early volume changes – swelling – Drying shrinkage - Mechanism of shrinkage – factors affecting shrinkage – Differential shrinkage – moisture movement carbonation shrinkage-creep of concrete – factors factors influencing creep – relation between creep
and time – Nature Nature of creep – Effect Effect of creep.
Syllabi for Pre-Ph.D/Civil
(2009-2010)
UNIT – VI VI
method s – fineness fineness modulus, trial and Mix Design: Proportioning of concrete mixes by various methods error, mix density, Road Note. No. 4, ACI and ISI code methods – factors factors in the choice of mix proportions – Durability Durability of concrete – quality quality control of concrete – Statistical Statistical methods – High High strength concrete mix design UNIT – VI VI I
Components of modern concrete and constituent materials -1: Light weight concretes – light weight aggregate, light weight aggregate concrete- Mix design – Cellular concrete Nofines concrete – High High density concrete – Fiber Fiber reinforced concrete – Different Different types of fibers = factories affecting properties of FRC – Applications polymer concrete – types of polymer concrete properties of polymer concrete applications. UNIT – VIII VIII
Components of modern concrete and constituent materials -2: Mineral admixtures in concrete – fly ash-silica fume- Highly reactive Metakaolin (HRM) – Rice husk ash – ready mix concrete – Ferro Ferro cement – High High Performance Concrete – Self Self compacting concrete
References: 1. “Micro
structure, Properties and Materials” P. Kumar Mehta, Panlo, J.N. Monterio –
CONCRETE Tata McGraw Hill 2 “Concrete
Technology” A.R. Santha Kumar Oxford University Press, New Delhi
3.. “Properties 4.“Concrete
of Concrete” Neville, A.M Pearson Education Asis, 2000
Technology- Theory and Practice” M.S. Shetty – S. S. Chand & Co. Ltd., NewDelhi
Syllabi for Pre-Ph.D/Civil
(2009-2010)
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY ANANTAPUR ANANTAPUR Pre-Ph.D CIVIL ENGINEERING
(09PH01209) REHABILITATION AND RETRO FITTING OF STRUCTURES UNIT – II
General : Quality assurance for concrete construction, As built concrete properties, strength, permeability, volume changes, thermal properties, cracking. UNIT – II II
Influence on serviceability and Durability:- Effects due to climate, temperature, chemicals, wear and erosion, design and construction errors, corrosion mechanism, Effects of cover thickness and cracking methods of corrosion protection, inhibitors, resistant steels, coatings cathode protection. UNIT – III III
Maintenance and Repair Strategies:- Inspection, Structural Appraisal, Economic appraisal, components of quality assurance, conceptual bases b ases for quality assurance schemes. UNIT – IV IV
Materials for Repair-1: - Special concretes and mortar, concrete chemicals, special elements for accelerated strength gain, Expansive cement UNIT – V V
reinforced concrete, Slurry Infiltrated Fibrous Concrete UNIT – VI VI
Techniques for Repair-1;- Rust eliminators and polymers coating for re-bars during repair, foamed concrete, mortar and dry pack, vacuum concrete UNIT – VII VII
Techniques for Repair-2;- Gunite and shotcrete - Epoxy injection, Mortar repair for cracks, shoring and underpinning. UNIT – VIII VIII
Examples of repairs to structures:- Repairs to overcome low low member strength, Deflection, cracking, chemical disruption, weathering, wear, fire, leakage, marine exposure.
Syllabi for Pre-Ph.D/Civil
(2009-2010)
References: 1. Dension Campbell, Allen and Harold Roper, Concrete Structures, Materials, Maintenance and Repair, Longman Scientific and Technical, U.K, 1991. 2 Repair of concrete Structures, . RT. Allen and S.C. Edwards, Blakie and sons, UK, 1987. 3. Concrete Technology – Theory Theory and practice, MS. Shetty S.Chand and company, New Delhi, 1992. 4. Training course notes on damage assessment and Repair in low cost housing Santhakumar, S.R. RHDC-NBO Anna University, Madras, July, 1992. 5. Raikar, R.N. learning from failures – deficiencies in Design, construction and service – R R & D centre (SDCPL), Raikar Bhavan, Bombay, 1987. 6. Estate Management, N. Palaniappan, Anna Institute of Management, Madras Sep. 1992. 7. Structural Assessment, F.K. Garas, J.L. Clarke, GST Armer Butterworths, UK April 1987. 8. Concrete chemicals – Theory and applications, A.R. Santhakumar, Indian society for construction Engineering and Technology, Madras. 1993 (In press)
(CommonPre-Ph.D Pre-Ph.Dpaper paper or all Ph.dnvl.Phil tudents dmitted rom 20ll-12 onwards)
( 1 PH0000 )Research ethodology Unit-I:Meaning, Objective and Motivation in Research: ypes of Research,Research Research,Research Approaches,esearch rocess, alidity alidityand andReliability Reliabilityn n Research Unit-fl:Research esign: Features f Good Design,Types Design,Types of ResearchDesign, Design,Basic Basic Principlesf Experimental esign Unit-III:SamplingDesign: Design:Steps Steps n SamplingDesign,Characteristicsf C haracteristicsf a Good Sample Design, andom amples nd ndRandom Random amplihg esign Unit-[V:Measurementnd Scaling ScalingTechniques: Techniques: rrors n Measurement, ests of Sound I'echniques, Measurement,caling calingand and Scale ScaleConstruction Construction Forecasting echniques, im e Series nalysis, nalysis,nterpolation nterpolationnd ndExtrapolation, Extrapolation, Unit-V:Methods f Data DataCollection: Collection: rimaryData,Questionnaire Q uestionnairend nterviews, ollection of Secondary ata,Cases nd Schedules. Professionalttitude t titudeand andGoals, Goals,Concept C oncept f Excellence,thics Excellence, thics n Science nd Engineering, Some amous rauds raudsn n Science Case tudies). ScienceCase Unit-Vl:Correlation nd Regression nalysis,Method Methodof of LeastSquares, Least Squares, egression s. Conelation,Conelation Vs. Determinatlon, ypes of Correlation Correlationand and Their Specific Applications. € I
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Books: I' Research ethodology:Methods M ethodsAnd TechniquesC. Techniques C. R. Kothari,2nd dition, dition,Ne Ne w Age ntemational ublishers. 2 , Research ethodology nd Statisticalools P. Narayana eddy eddyAnd And G.V,R.K, Acharyulu, Edition, xcelBooks, B ooks, e w Delhi, 00g,