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SYLLABUS

UNIT-I

CEMENTS AND ADMIXTURES Portland cement – Chemical composition – Hydration, Setting of cement – Structure of hydrated cement – Test‘s on physical properties – Different grades of cement – Admixtures – Mineral and chemical admixtures. AGGREGATES Classification of aggregate – Particle shape and texture – Bond, Strength and other mechanical properties of aggregate – Specific gravity, Bulk density, Porosity, Adsorption and moisture content of aggregate – Bulking of sand – Deleterious substance in aggregate – Soundness of aggregate – Alkali aggregate reaction – Thermal properties – Sieve analysis – Fineness modulus – Grading curves – Grading of fine and coarse Aggregates – Gap graded aggregate – Maximum aggregate size.

UNIT-II

FRESH AND HARDENED CONCRETE Workability – Factors affecting workability – Measurement of workability by different tests – Setting times of concrete – Effect of time and temperature on workability – Segregation and bleeding – Mixing and vibration of concrete – Steps in manufacture of concrete – Quality of mixing water – Water/cement ratio – Abram’s law – Gel space ratio – Nature of strength of concrete – Maturity concept – Strength in tension and compression – Factors affecting strength – Relation between compressive and tensile strength - Curing – Compression tests – Tension tests – Factors affecting strength – Flexure tests – Splitting tests .

UNIT-III

SPECIAL CONCRETES Light weight aggregates – Light weight aggregate concrete – Cellular concrete – No-fines concrete – High density concrete – Fibre reinforced concrete – Different types of fibres – Factors affecting properties of F.R.C – Applications – Polymer concrete – Types of Polymer concrete – Properties of polymer concrete – Applications – High performance concrete – Self consolidating concrete – SIFCON – Bacterial concrete( self healing concrete)

UNIT-IV

ELASTICITY, CREEP AND SHRINKAGE Modulus of elasticity – Dynamic modulus of elasticity – Posisson’s ratio – Creep of concrete – Factors influencing creep – Relation between creep and time – Nature of creep – Effects of creep – Shrinkage – Types of shrinkage. Introduction to non-destructive testing methods – Rebound hammer – Ultra pulse velcity method – Pullout - codal provisions for NDT.

UNIT-V

MIX DESIGN Factors in the choice of mix proportions – Durability of concrete – Quality Control of concrete – Statistical methods – Acceptance criteria – Proportioning of concrete mixes by various methods – ACI method and IS 10262 method.