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The volumetric mixer varies in capacity size up to 12 m 3 and has a production rate of around 60m 3 an hour depending on the mix design. Many volumetric concrete mixer manufacturers have innovated the mixer in capacity and design, as well as added features including color, multiple admixes, fiber systems, and the ability to do gunite or shotcrete.
Drum mixers (reversing drum mixer and tilting drum mixers), used where large volumes (batch sizes of 3–9 m 3 or 3.9–11.8 cu yd) are being produced. This type of mixer is capable of high production outputs. All the mixer styles have their own inherent strengths and weaknesses, and all are used throughout the world to varying degrees of ...
The heart of the concrete batching plant is the mixer, and there are many types of mixers, such as tilt drum, pan, planetary, single shaft and twin shaft. The twin shaft mixer can ensure an even mixture of concrete through the use of high horsepower motors, while the tilt mixer offers a comparatively large batch of concrete mix.
Self-consolidating concrete or self-compacting concrete (SCC) [1] is a concrete mix which has a low yield stress, high deformability, good segregation resistance (prevents separation of particles in the mix), and moderate viscosity (necessary to ensure uniform suspension of solid particles during transportation, placement (without external compaction), and thereafter until the concrete sets).
The energy needed for mixing comes from a loss in pressure as fluids flow through the static mixer. [2] One design of static mixer is the plate-type mixer and another common device type consists of mixer elements contained in a cylindrical (tube) or squared housing. Mixer size can vary from about 6 mm to 6 meters diameter.
Reimer Express Lines Ltd., which did business as YRC Reimer, was a Canadian less than truckload (LTL) carrier and subsidiary of YRC Worldwide based in Winnipeg, Manitoba. YRC retired the Reimer brand in 2019 merging it with YRC's largest LTL subsidiary, YRC Freight.
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Stephen invented a self-discharging motorized transit mixer that was the predecessor of the concrete mixer truck and applied for a patent in 1916. [2] However, the patent was rejected in April 1917 by the patent office because it was believed that a truck could not support the weight of a concrete mixer on top of it. [5]