Ingredients which are added to in cement before or after concrete mix

 Ingredients which are added to make aggregates healthier

 Ingredients added in cement to make it shinier

 Ingredients added in concrete to make good workability

 To accelerate the initial set of concrete, to speed up the rate of development of strength at early ages

 To enhance the workability

 To reduce the segregation in grout and concrete mixers

 To retard the initial set, to keep concrete workable for a shorter time for placement

Plasticizers

 Pozzolanic

 Super plasticizer

Accelerators

Plasticizers

Retarders

Super plasticizer

Accelerators

Increase curing rate

Slows curing rate

 Improves workability at low w/c ratio

 Speeds up start of finishing operations

Water repellent materials

 Water fair material

Water absorption material

 Water adsorption material

Which adds water for workability

 Which reduces water for workability

Which decreases workability at the same water content

Which oxidizes water for workability

Where low degree of workability is required

 Where medium degree of workability is required

Where high degree of workability is required

 Where very low degree of workability is required

Which adds water for workability

 Which reduces high range of water for workability

Which decreases workability at the same water content

Which oxidizes water for workability

Which speed up the initial set of concrete

 Which delays the initial set of concrete

 Which speed up the final set of concrete

 Which delays the final set of concrete