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  1 CSE 20308 C onstruction M aterials CSE 20308 C onstruction M aterials Course Instructor  Prof. Chi-sun PoonThe Hong Kong Polytechnic University Course Layout Concrete (10 weeks) Module I.Introduction and Basic Concepts  Definition   Advantages of concrete as a construction material  Comparison between structural concrete and steel  Types of structural concrete (Plain concrete, Reinforced cement concrete, Prestressed concrete)  Constituent materials of concrete –a brief introduction (cement, aggregates, water and admixtures)  Production of concrete –a brief review Module II.Cement  Chemical composition of cement  Manufacture of Portland cement  2 Module II.Cement (contd.)  Hydration of cement  Types of Portland cement  Tests to evaluate physical and mechanical properties of cement Module III.Aggregates  General classification of aggregates  Physical and mechanical properties of aggregates  Size and grading of aggregates  Grading requirements  Maximum aggregate size Module IV.Properties of Fresh Concrete  Workability of concrete  Factors affecting workability  Measurement of workability Module IV.Properties of Fresh Concrete (contd.)  Problems in fresh concrete (Segregation, Bleeding)  Placing and compaction of concrete Module V.Properties of Hardened Concrete  Factors affecting the strength of concrete-Water-cement ratio-Aggregate-cement ratio-Strength and maximum size of aggregates-Compaction, mixing temperature and curing method-Effect of age  Tensile strength of concrete  Relation between tensile and compressive strength of concrete  Bond strength of concrete  3 Module VI.Testing of Hardened Concrete  Compressive strength tests-Destructive tests (Cube test, Cylinder test, Core test)-Non-destructive tests (Rebound hammer, Penetration resistance,Pull-out, Ultrasonic Pulse velocity)  Tensile strength test  Flexural test (modulus of rupture)  Bond strength test Module VII.Concrete Admixtures  Benefits of admixtures  Types of admixtures (Water-reducers, Accelerators, Retarders)  Mineral admixtures (Silica fume, Fly ash, Blast furnace slag)  Performance and properties of blended concretes Module VIII.Concrete Mix Design  Process of mix selection  Factors affecting the mix proportions-Durability-Strength-Cost  Mix design methods-Absolute volume approach-British method (DOE)-ASTM method Module IX.Special Concretes  High performance concrete  Fiber reinforced concrete  Roller compacted concrete  Light weight concrete  Polymer composites  4 Module X.Durability of Concrete  Permeability of concrete  Sulphate attack   Attack by sea water    Acid attack   Alkali-aggregate reaction  Corrosion of reinforcement Text Book  A.M. Neville and J.J. Brooks. 1990. “Concrete Technology”. Longman and Hall, London. Reference Books  A.M. Neville. 1995. “Properties of Concrete”. Longman and Hall, London. J.F. Young; S. Mindless; R.J. Gray; and A. Bentur. 1998. “The Science and Technology of Civil Engineering Materials”. Prentice-Hall International Inc. , New York.
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