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Last edited 02 May 2018
The concrete is transported to site in an unhardened state, often using a ready mixed concrete truck. While concrete can be mixed on site before being cast-in-place, deliveries will contain concrete that has been proportioned and mixed off-site. A chute is used that extends from the back of the truck to place the concrete either in the required location or into a dumper or pump.
An alternative concreting technique is precast concrete which is prepared, cast and cured off-site, usually in a controlled factory environment, using reusable moulds. For more information, see Precast concrete.
While cast-in-place can allow for greater flexibility and adaptability as required, it can be difficult to control the mix particularly if the weather conditions are not favourable. Cast-in-place concrete will also require a strength test and time for curing, which makes it slower than precast. However, there are less joints created in the structural system and not as much handling equipment is required.
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