Concrete is the most familiar building element. The densest and strongest concrete is that in which cement paste fills the voids with the sand and the resulting mortar fills the voids in the coarse aggregate. Every grain of sand should be entirely coated with cement. Before the invention of the mixing machine, the entire mixing process used to be done by hand, shovel, shallow box. But now due to the high demand in construction, different types of mechanical procedures and machines are used for mixing.
As technology has changed, the basic mixer design has also evolved. Concrete mixers can be divided into general mixers and forced mixers. Nowadays,
twin shaft mixers, vertical axis mixers, and drum mixers are the most commonly used
mixing machines.
The followings are the types of concrete mixing machines.
Based on Working Principles
Batch Mixer
Continuous Mixer
Based on Mixing Methods
Self Loading Mixer
Compulsory Mixer
Based on the shape of concrete mixers
Pear-Shaped Mixer
Drum Shaped Mixer
Cone Shaped Mixer
Vertical Shaft Pan Mixer
Horizontal Shaft Mixer
Based on the Discharging Method
Rotary or Non-tilting Type
Tilting Type
Commonly Used
Forced Mixer
Self Propelled Mixer