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Slump test is the most common field test to measure the workability and flow characteristics of fresh concrete.
M25 designation means the concrete will achieve 25 MPa minimum compressive strength at 28 days with 95% probability.
IS 456:2000 is the Indian Standard for plain and reinforced concrete - Code of Practice.
For reinforced concrete beams, nominal maximum coarse aggregate size is typically 20 mm to ensure proper placement around reinforcement.
Rigid aggregate is not a standard classification. Aggregates are classified as coarse, fine, and lightweight based on size and density.
SRPC (Sulphate Resisting Portland Cement) is used for underwater and marine structures to resist sulphate attack.
IS 456:2000 specifies 28 days as the standard curing age for determining the compressive strength of concrete cubes.
Cement acts as a binder that hydrates and binds fine and coarse aggregates together to form a solid mass.
