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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 ...
The mixer already exhibited the still common basic construction with a tiltable conical drum (as double cone at that time) with blades. On February 9, 1904, the first portable concrete mixer was patented by Richard Bodlaender, an inventor from Breslau, Germany. [2] This concrete mixer was horse-drawn and called 'Mortar Mixer'.
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A wet mix concrete plant combines some or all of the above ingredients (including water) at a central location into a concrete mixer - that is, the concrete is mixed at a single point, and then simply agitated on the way to the jobsite to prevent setting (using agitators or ready mix trucks) or hauled to the jobsite in an open-bodied dump truck ...
Taiheiyo Cement was created through a series of mergers and acquisitions dating back to the establishment of the Cement Manufacturing Company (later renamed the Onoda Cement Company) in 1881. [5] Onoda Cement purchased California Portland Cement Company from the CalMat Company in 1990 for $316 million, [ 5 ] [ 6 ] after having acquired a 19% ...
Overhead protection of the fort was provided by a 20-foot (6.1 m) thick steel-reinforced concrete deck. [10] The exterior walls ranged between approximately 25 to 36 ft (7.6 to 11.0 m) thick, making it virtually impregnable to enemy naval attack.
Sir James Paul McCartney (born 18 June 1942) is an English singer, songwriter and musician who gained worldwide fame with the Beatles, for whom he played bass guitar and the piano, and shared primary songwriting and lead vocal duties with John Lennon.
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