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Unit 2: Properties, Production and Placement of Concrete: [6 hrs.], , a) Fresh concrete: workability ~ factors affecting workability, cohesion and segregation,, bleeding, workability tests, mixing- handling, placing and compaction of concrete, curing, methods, time- strength relationship, , b) Hardened concrete: strength of concrete, factors affecting strength, micro-cracking, , and stress-strain relationship, strength properties and factors affecting them, relation, , , , between tensile and compressive strengths, impact strength, abrasion resistance, elasticity, and creep, shrinkage and swelling., , Unit 3: Testing of Concrete and Formwork: (6 hrs.), , a) Testing of concrete: Destructive and Non-destructive testing: Compressive and tensile, strength test, Pullout test, Rebound hammer, Ultrasonic pulse velocity, Split Tensile test., , b)Formwork: Types, basic members in form work and principles of design, Materials for, , formwork construction, causes of failure of formwork and safety precaution., Unit 4: Concrete Mix Design: [6 hrs.], , Concepts of Mix Design, Factors affecting proportioning, Factors to be considered,, common terminologies, Statistical quality control, Methods of Mix Design by IS 10262,, ACI and BS(DoE) codes, Mix design of High strength Concrete by ACI method, Factors, affecting high strength concrete., , Unit 5: Special Concretes and Special Concreting Techniques: [8 hrs.], , 1a) Introduction to concrete related equipment: batching plants, hauling, pumps, mixers, and vibrators., , b) Special concrete: light weight concrete, polymer concrete, types of fibers, fiber, , reinforced concrete, high density concrete, self-compacting concrete and applications., , ©) Special concreting techniques: pumping of concrete, under water concreting, ready, , mixed concrete, roller compacted concrete.