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Squilly and Co. Asphalt Paving Inc. Located in: Sometown , CT 00001 Phone: ( 860)-555-2867. Representatives: Nicki Hosey and Briana McDermott. Research and Development. Alternatives for Asphalt Synthetic Asphalt New Processes More efficient mixing and milling units
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Squilly and Co. Asphalt Paving Inc. Located in: Sometown, CT 00001Phone: (860)-555-2867 Representatives: Nicki Hosey and Briana McDermott
Research and Development • Alternatives for Asphalt • Synthetic Asphalt • New Processes • More efficient mixing and milling units • In-line liquid mass flow meters • On-line monitoring systems • New safety equipment • Improvements • Modifiers • Control pavement rutting, cracking, asphalt oxidation, and water damage • Better Plants • Cleaner • Pavement warranties • More common
Location of Asphalt in the Distillation Tower • Crude oil • Pumped into a distillation tower --> 370˚C. • Several hydrocarbons drawn by boiling points--virtually unusable otherwise • Oil vaporizes and rises up the tower • Vapor cools--molecules condense--heavier ones collecting at the bottom, lighter ones rising to the top. • Heaviest hydrocarbons • Highest boiling points, pulled from bottom of tower. • Lighter hydrocarbons • Pulled from higher locations as boiling points decrease. • Stream pulled from bottom --> “reduced crude” --> further distilled in vacuum distillation tower into asphalt and heavy gas oils. • Asphalt further processed for sale • Paving, roofing, industrial use.
Asphalt Manufacturing Process and Time • Two different types of plants --> different amounts of asphalt. • Batch Plants: • 350 metric tons per hour • One batch (2-5.5 metric tons) --> 15-45 seconds • Drum Mix Plants: • Anywhere from 100 to over 900 metric tons per hour, depending on drum design
Disposal of Waste By-Products • Emissions • Dust • Smoke • Sulfur Dioxides • Control/Prevention of Waste • Electrostatic Precipitators • Primary and Secondary Dust Collectors • Enclosures • Eliminates and increases heating efficiency of process
Disposal of Waste By-Products: Recycling • Materials from old pavements reprocessed with new materials • Hot-Mix Recycling • Cold-Mix Recycling • Surface Recycling • Over 95 million metric tons of asphalt paving material is recycled each year. • America’s most recycled material
Cost of Manufacturing and Cost to Consumers • Cost of Manufacturing in New England as of July 2012: • $75 per ton • Cost to Consumers in New England as of July 2012: • $147 per ton • Including crew and equipment costs, and installation.
Transportation of Asphalt • Must be kept hot to remain a liquid. • 250°F and 350°F • Loaded into a truck, barge or rail--pipelines cannot be used over great distances due to temperature constraints • Heat transferred to surrounding environment • Convection, radiation • Asphalt surface temperature drops • Cooler surface insulates interior mass. • Air temperature, rain, wind, length of haul affect the characteristics and temperature of crust.
Benefits for Mankind/Earth/Living Organisms • More Efficient • Healthier for the Environment • Durable • Safe • Economic • Transportation
Risks if Asphalt is NOT Manufactured • Concrete • Cracking • Vulnerable to heat • Corrosion • Expensive • Non-recyclable
Sources • http://www.technologystudent.com/joints/plastic3.html • http://www.huntrefining.com/Process.aspx • http://www.lafarge-na.com/wps/portal/na/en/3_C_2_1-Manufacturing_process • http://www.homeconstructionimprovement.com/cost-asphalt-driveways • http://www.pavementinteractive.org/article/hma-transport/ • http://www.marathonpetroleum.com/Brands_Products/Products/Asphalt/ • http://bradleyasphalt.com/advantages-asphalt-pavement-concrete-pavement/ • http://www.paversearch.com/asphalt-paving-advantages.htm • http://www.enotes.com/asphalt-cement-reference/asphalt-cement • http://asphaltroads.org/Environment • http://www.asphaltpavement.org/index.php?option=com_content&view=article&id=21&Itemid=41 • http://www.ehow.com/about_4570836_disadvantages-concrete.html