30-6-2020· The asphalt industry has been discussing limiting silica exposure since 2003, when the National Asphalt Pavement Association (NAPA) led the formation of a Silica/Milling Machine Partnership to ...
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Get PriceSilica/Asphalt Milling Machine Partnership. The Partnership was established in 2003 to find a way to control workers’ exposure to respirable crystalline silica during asphalt pavement milling in highway construction. Members of the Partnership include the National Asphalt Pavement Association, numerous paving contractors, all U.S. and foreign
Get Price31-3-2015· Workers use a variety of machinery when removing and recycling asphalt pavement including a cold-milling machine which has toothed, rotating cutters that grind and remove pavement for recycling. Workers can breathe in the dust generated from the cold-milling machines which often contains respirable crystalline silica.
Get PriceCONTROL OF SILICA DUST IN CONSTRUCTION Large Drivable Milling Machines (Half Lane and Larger) Using large drivable milling machines (half lane or more) on asphalt pavement, concrete, and other silica-containing materials can generate respirable crystalline silica dust. When inhaled, the small particles of silica can irreversibly damage the lungs.
Get PriceThanks to the decade of work by the Silica/Asphalt Milling Machine Partnership, use of OSHA-approved engineering control technologies can ensure compliance with the rule for roadway milling activities; however, other road construction and asphalt production activities may trigger the Silica Rule's monitoring and mitigation requirements.
Get Pricesilica. dust. When inhaled, the small particles of silica can irreversibly damage the lungs. This fact sheet describes dust controls that can be used to minimize the amount of airborne dust when using small drivable milling machines as listed in Table 1 of the Respirable Crystalline Silica Standard for Construction, 29 CFR 1926.1153 .
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Get PriceAs shown in Fig. 9, a micro-milling machine was used in the experiment and the workpiece was fixed on a Kistler 9256C dynamometer. A fused silica plate of 10 mm × 10 mm × 1 mm was used as workpiece. Magfor 8527-G diamond coated ball end mills with diameter of 0.5 mm and edge radius of 3 μm were used as the tools.
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Get Price31-3-2015· Workers use a variety of machinery when removing and recycling asphalt pavement including a cold-milling machine which has toothed, rotating cutters that grind and remove pavement for recycling. Workers can breathe in the dust generated from the cold-milling machines which often contains respirable crystalline silica.
Get PriceSilica Rule With OSHA's new Silica Rule for roadway construction activies now being enforced, companies engaged in roadway construction must be aware of the potential for exposure to silica associated with common roadway construction activities, mitigation strategies and technologies, and reporting, monitoring, and other regulatory obligations.
Get PriceThe Silica/Milling Machine Partnership is open to all companies involved with the manufacture of milling machines. Working closely with NIOSH over the past decade, the Partnership has made great strides in understanding processes that can be used to reduce dust and potential silica exposure.
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Get Price31-3-2015· Workers use a variety of machinery when removing and recycling asphalt pavement including a cold-milling machine which has toothed, rotating cutters that grind and remove pavement for recycling. Workers can breathe in the dust generated from the cold-milling machines which often contains respirable crystalline silica.
Get PriceThe collaboration began in 2003, when the National Asphalt Pavement Association (NAPA) led the formation of a Silica/Milling Machine Partnership that was formed to evaluate milling machines and ...
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