Concrete is one of the important construction materials. Study of its constituents and their properties is essential for preparing desired mix so as to develop required strength necessary for various types of Structures. The durability of the structures depends upon the care with which ingredients of concrete are selected, mixed, placed, compacted and cured. Concrete is used not only for construction of building, but also for concrete roads, gravity dams, retaining walls, water tanks, airport runway pavements, etc.

The information regarding various properties of concrete in its plastic stage as well as hardened Stage is necessary to enable the engineer for quality control during construction work. Knowledge of the subject is essential for the Design of Concrete Structures. Strength, workability, durability are important characteristics of concrete. Compressive strength of concrete describes the load caring capacity, workability is the indicator of ease with which we work on concrete, Where as durability shows the resistance of concrete to environmental attack.

After performing the experiments the students will be able to assure the quality of concrete and its ingredients. Also they able to design various grades of concrete by DOE, ACI and Indian method of concrete mix design.

Equipments:-

1. Vibrating machine
2. Vicat apparatus
3. Le Chatlier Mould
4. Le Chatlier water bath
5. Length gauge
6. Thickness gauge
7. Vee Bee Consistometre
8. Flow table apparatus
9. Slump cone apparatus
10. Compaction factor apparatus
11. Air permeability apparatus
12. Sieve shaker
13. Vibrating table
14. Density basket
15. Lab mixer
16. Measuring cylinders
17. Compression testing machine

List of Experiments:-

1)Test on Cement:
    Fineness, Standard Consistency, Setting time, Compressive strength and Soundness test.

2) Test on Aggregates:
     Bulk density specific gravity, finesses modulus, Aggregate impact value, flakiness index,elongation index of aggregates, Abrasion value, crushing value, silt content, bulking of sand.

3) Test on Fresh Concrete :
Slump, Vee – Bee, Compaction factor and flow test for fresh concrete .

4) Tests on Hardened Concrete:
     Split tensile strength, modulus of rupture, young’s modulus, compressive strength , Non Destructive Testing, Rebound hammer and Ultrasonic pulse velocity test.