A precast concrete slab can be taken directly from the manufacturing unit and after being treated can simply be placed on the construction site where it is desired.
<u>When the construction uses standardized measurements, the usage of precast concrete is preferred because it is faster and easier to work with.</u>
Most constructions are undertaken with pre-cast concrete because of this.
Field modification is necessary when there is no set rule on how the construction can go underway and there is scope for external factors to effect it.
