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Respirable silica dust protection enters second phase

The Occupational Safety and Health Administration’s revised protection and monitoring requirements for respirable silica dust exposure in Construction and General Industry workplaces are set, with or without universal employer compliance. Robert Bosch Tool Corp. in Mt. Prospect, Ill., reminds producers and contractors working with concrete, stone or masonry materials of new OSHA requirements in this question & answer with Jim Bohn, director of Strategic Development – North America:

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New Image lengthens front discharge mixer service life

Indiana-based New Image Mixer has dedicated a 70,000-sq.-ft. facility for front discharge mixer truck refurbishment. It offers two packages for extending vehicle service life, each maintaining an original VIN to allow truck owners economy and flexibility in powertrain overhaul or upgrades. Under a basic package, New Image tears down old mixers to rolling chassis; installs new wiring harnesses plus air, hydraulic and water lines; sandblasts and paints cab, barrel, hood and fenders; rebuilds engines and major components or replaces with remanufactured Cummins or Caterpillar power; and, performs complete cab interior overhaul. A second package includes those services around new, customer-supplied Terex Advance or Oshkosh box frames, plus a host of hood, lighting, fender, barrel, chute and chassis options.

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Shumaker ‘eyes’ efficiency, QC in wash system upgrades

Shumaker Industries has elevated technology underpinning the Load & GO, an automated ready mixed truck wash system installed in batch plant alleys across the country since its 2013 debut. Topping new features is Interactive Mixer Recognition, where a series of infrared electric eyes communicate truck position to a PLC by Siemens unit, which in turn a) directs the driver through wash stages via a red/yellow/green light alert; and, b), more importantly, activates three spray cycles per vehicle location.

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Solomon secures pigment process patent, brings granule production in house

Solomon Colors recently commenced full-scale ColorFlo SG Granular Pigment production at its Illinois headquarters. Using an innovative, patented process, it produces granular pigment that meets or exceeds the color development, flowability, dispersion, and dusting properties of other granular pigments in low and high slump applications, product developers contend. Unique granulation methods and high production tolerances, they add, make ColorFlo SG Granular well suited to manufactured concrete products or ready mixed.

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Hollow core production methods warrant pushing of envelope

As an invention, the hollow-core slab is of mature age, but there are still many improvements that can be made to maximize production quality and efficiency, Finland’s Elematic Oyj contends. Whether it is an old prestressed line or a new plant, the process can be improved by removing production-related bottlenecks, while material consumption can be cut down with advanced software and automation.

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