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Load and unload construction materials, and move materials to work areas. Erect and dismantle concrete forms, scaffolding, ramps, catwalks shoring and barricades required at construction sites. Mix, pour and spread materials such as concrete and asphalt. Assist trades persons such as carpenters, bricklayers, cement finishers and roofers in construction activities. Assist in demolishing buildings using prying bars and other tools, and sort, clean and pile salvaged materials. Remove rubble and other debris at construction sites. Operate hammers, vibrators and tampers as directed. Tend or feed machines or equipment used in construction such as mixers, compressors and pumps. Clean up chemical spills and other contaminants.
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