A concrete mixing plant is a huge set up of machines meant to combine cement, aggregates such as sand or gravel, and water to form concrete. concrete mixing plants apart from various other equipments also uses a revolving drum to mix the components. Concrete mixers may be mobile or stationary. Its size range from portable mixer to heavy industrial mixing plant.
Stationary plant-mounted mixer, mixes the concrete before it is discharged into a truck mixer. Revolving drums, conveyor and diesel or electric powered engines are used in this plant. The truck mixer is used primarily as an agitating haul unit at a central mix operation. Dump trucks or other non-agitating units are sometimes used for low slump and mass concrete pours supplied by central mix plants.
Based on the different technologies used, plant mixers are classified
- Tilt drum mixer
- Horizontal shaft paddle mixer
- Dual shaft paddle mixer
- Pan mixer
- Slurry mixer
Apart from stationary concrete plant mixer mobile concrete mixing
is also very popular and widely used. Mobile concrete mixer plant
is a unit mounted on a trailer which carries sufficient unmixed
materials, such as cement, sand, coarse aggregates, water, and any
chemicals required, for special mix specifications to the job site. In
this type of plant cement, sand and aggregates are carried in separate
bins. The materials are mixed proportionately, mixed with water and then
discharged through the conveyor system.