Course Content

Hours

Unit-1

Cement and Admixtures: Types of Portland Cement, hydration, setting and hardening process, special hydraulic cements, Admixture, accelerators, and retarders, air-entraining agents, plasticizer and super-plasticizers, mineral admixtures such as fly ash, ground granulated blast furnace slag, microsilica, rice husk ash.

6

Unit -2

Aggregates: Shape and texture, bond, strength, specific gravity, bulk-density and moisture content of aggregates, bulking of sand, deleterious substances in aggregates, alkali-aggregate reaction, sieve-analysis and grading curves, fineness modulus, practical grading, gap grades aggregates.

4

Unit -3

Fresh Concrete: Rheological aspects such as workability-flow ability, Compatibility, mobility of concrete, factors affecting workability and laboratory determination, segregation, bleeding, laitance, compaction of concrete.

4

Unit – 4

Strength of Concrete: Compressive strength and factors affecting it, behavior of concrete under various stress stated, testing of hardened concrete – cube and cylinder test, Platen effect, non-destructive testing such as rebound hammer test, USPV test, core-cutting, stress – strain relation and modulus of elasticity, shrinkage, creep of concrete and its effect.

4

Unit -5

Durability of Concrete: Corrosion of reinforcing bars, sulphate attack, frost action, Deterioration by fire, Concrete in seawater, acid attack, carbonation, cracks in concrete.

4

Unit – 6

Concrete Mix Design: Basic consideration – cost, workability, strength and durability, grading, method of mix design, acceptance criteria for concrete.

4

Unit – 7

Advances in Construction Materials: High strength concrete, fibre-reinforced concrete, concrete containing polymers, heavy weight and light weight concrete, mass concrete, reactive powder concrete, Engineered Cementitious Composites, Geopolymer concrete.

6

Total

32