Why is admixture used?
Admixture in concrete use for the modification of
setting time of concrete, Workability of concrete, air-entrainment dispersion etc
In recent time the development increased in extremely large scale so we started using
high strength concrete for bridge construction project and high rise building like
skyscrapers So makings concrete manually on-site by labours is not possible so that use of
ready mix concrete has really promoted and use of RMC has really promoted the use of concrete admixtures
In the market various
types of admixtures used in concrete available like accelerators, retarders, air-entraining agents, pozzolanic materials, waterproofing admixture etc which are used in practice by civil engineer constructors in the construction industry
The admixture dosage in concrete normally used in small quantity like 0.005 to 2% by the weight of cement but we tested first before applying
Most of the
admixture used in concrete are provided in
ready-to-use liquid form and are added into the
concrete at the construction site