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