Briefly explain creep coefficient method of concrete?

Creep Concrete: Creep in concrete is a deformation of structure under sustained load.

• Long-term pressure on concrete can make it change shape.
• Creep deformation usually occurs in the direction of applied force.
• Creep does not necessarily cause concrete to fail or break.

Factor Affecting Creep:

Aggregates: If the modulus of elasticity of aggregates is low then the creep is more and if the modulus of elasticity is more, the creep is less.

Mix proportion: Mix proportion indicates the water-cement ratio (WC ratio i.e. the strength of concrete ) in concrete. The strength of concrete is inversely proportional to the creep. If the strength is high creep is low, and if the strength is low then creep is high.

Creep Coefficient: It is defined as the ratio of creep strain to the elastic strain.