2009-07-28_PWETC_AgendaPacket - Laserfiche WebLink

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Member Vanderwall asked which of the company's existing plants is most similar to the one they want to build in Roseville. Kent Peterson answered Roseville plant will produce more than their Shakopee plant but it will have a new technology to produce asphalt at a lower temperature called warm mix. This new technology has already been installed at the Shakopee plant and the Inver Grove Heights plant. John Kittleson presented the mission statement of the company: To be a trusted and responsible industry leading providing quality products and timely services that exceeds customer expectations while providing a safe and rewarding environment for our employees. John Kittleson discussed the company's ability to serve the southern part of the metro area with the existing plants and the desire of the company to serve the northern part of the metro by opening the plant in Roseville. Member Vanderwall asked to verify if the asphalt needed to be heated to such a high temperature. John Kittleson answered it is necessary for workability purposes of the asphalt. Member Felice asked if the asphalt is heated to the 260 degrees that is necessary for workability then are the other volatiles heated to this temperature also. John Kittleson answered yes they are. John Kittleson explained why there would be no smoke or odor coming from the plant proposed for Roseville. Light oils are either put in asphalt or left in asphalt during refining. These light oils boil at above 285 degrees Fahrenheit. By mixing at below 285 degrees Fahrenheit, the boiling point is never reached thus eliminating smoke and odor. Warm mix asphalt uses 14% less fuel due to 50 degrees Fahrenheit lower temperature. It produces less volatiles and can use more recyclables. Member Felice asked how the process uses less recyclables. John Kittleson and Kent Peterson explained the new warm mix process heats the asphalt at a lower temperature and the water is added to the mix in a different form to change the viscosity of the mix. Member Vanderwall stated he wants to hear more about the moisture when they talk about outside storage. Member Gjerdingen asked if this lower temperature mix is going to be standard and if customers have noticed a difference. Kent Peterson answered he has talked to MN DOT about this and will present this product to them. Kent Peterson also stated they have received good feedback about the product. A member asked if there was a savings to the customer. Kent Peterson answered yes since this warm mix process uses less energy. John Kittleson concluded the presentation by stating a 10% reduction in carbon monoxide, carbon dioxide and nitrogen dioxide has been identified. Greenhouse emissions have been reduced. There has been a reduced reliance on imported oil and an increase in pavement life expectancy.