Appropriate quality and quantity of cement, fine aggregate, coarse aggregate and water should be used so that the green concrete has the following properties:
(a) Desired workability
(b) No seggregation in transporting and placing
(c) No bleeding and
(d) No harshness.
Hardened concrete should have
(a) required characteristic strength
(b) minimum dimensional changes
(c) good durability
(e) good resistance to wear and tear.