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This is often referred to as on-site concrete, site mixed concrete or mobile mix concrete. This is a mobile miniaturized version of the large stationary batch plant. They are used to provide ready mix concrete utilizing a continuous batching process or metered concrete system.
As early as 1916, Stephen Stepanian of Columbus, Ohio, developed a self-discharging motorized transit mixer that was the predecessor of the modern ready-mix concrete truck, but the patent that Stepanian filed in 1916 was rejected in 1919. The poor quality of motor trucks at the time was a problem for inventors.
Concrete mixer. A concrete mixer (also cement mixer) is a device that homogeneously combines cement, aggregate (e.g. sand or gravel), and water to form concrete.A typical concrete mixer uses a revolving drum to mix the components.
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]
Oldcastle Materials Inc. is a supplier of asphalt, concrete, and other building materials, and also offers construction and paving services. The Atlanta-based company is a subsidiary of CRH plc, a publicly traded international group of diversified building materials businesses, [2] [3] and has approximately 18,000 employees at 1,200 locations, as of March 2018.
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The Lubal Manufacturing & Distributing Company buildings are a set of two industrial buildings in the Franklinton neighborhood of Columbus, Ohio.The site was listed on the Columbus Register of Historic Properties in 2015 and the National Register of Historic Places in 2016.
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