European countries have used this pavement type for decades with high levels of success in their highway system and local roads. Improved surface drainage, reduced noise and long-lasting SMA is the new asphalt pavement in the United States.
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Previously requiring the use of additive cellulose fibers and lots of foreign oil, RAS has reduced the cost of the most expensive pavement type by more than 10 percent. Illinois taxpayers save money every day on construction projects for high-traffic pavements, stone matrix asphalt (SMA). 10, 2014, the Central Bureau of Design has drafted the most progressive stance on asphalt binder replacement in asphalt mixtures in the state’s history in furtherance of the goal to maximize recycled content (see diagram below).īased on sound mix design engineering, mixture performance of submitted mix designs to IDOT using RAS and FRAP have a perfect record on the pavement rut stress test, the Hamburg Wheel. This specification allowed for the asphalt binder replacement levels (ABR percent) necessary to capture the economic savings of RAS usage and fractionalized of asphalt pavement (FRAP).Īs of Jan. Testing LLC, East Dundee, Ill., worked cooperatively to develop a specification that would eventually emerge statewide in 2012. Illinois State Toll Highway Authority, IDOT District 1, and S.T.A.T.E. Asphalt production facilities may only use RAS in the production of asphalt paving materials from IL BUD-certified sources in accordance with IEPA air permit standards.Require Illinois Department of Transportation (IDOT) to report to the Illinois legislature on the goal of recycling in construction and to maximize recycled content and warm-mix technology with consideration for life-cycle cost.C&D facilities (IEPA 22.38) would receive double credit for each ton of shingles recycled according to BUD criteria against the 75 percent recycling goal.Illinois passed, and Governor Pat Quinn signed into law, Public Act 097-0314 that established the following: It needed to sustain itself on high-quality final products and a consistent supply. The RAS business model could not be built on customers paying high tipping fees. Rail, waterways and highways make all commodities mobile. In a previously undeveloped market in Illinois, Southwind RAS LLC, Bartlett, Ill., began providing the asphalt paving industry with what it positioned as a cost-saving green alternative that can enhance pavement performance, extend local municipal budgets and reduce carbon footprints of construction projects statewide.Ĭ&D markets, just like the rest of the markets in Chicago, are ultra competitive. Reclaimed asphalt shingles (RAS) are now among the materials allowed to be recycled in Illinois, a petroleum resource that was harvested by neighboring states for nearly a decade. This action spawned recycling industries in Illinois and has encouraged private-sector innovation and job growth in the most difficult economic climate in recent history. This new legislation allowed for Beneficial Use Determination (BUD) status permitting the handling of materials previously classified as waste to be returned to the economic mainstream without the legal siting requirements of a solid waste transfer station. Effective Date: 06/01/18 Revised Date: Contact Person: Kelly Morse/ Phone: 217/782-1916 / Email: Superpave Bituminous Concrete Mixtures (Low ESAL), Rubber Modified (CBM) Application: For HMA projects containing crumb rubber modified asphalt cement.In 2009, an Illinois law, the IL Public Act 096-0489 passed.
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ILLINOIS DOT CONCRETE MIX DESIGN EXCEL SPREADSHEET FULL
Effective Date: 04/03/03 Revised Date: 01/12/05 Contact Person: Tom Zehr / Phone: 217/524-7268 / Email: Hot Mix Asphalt Full Lane Sealant (CBM) Application: This special prevision was developed to improve the tack coat used in construction of full-depth HMA pavements and HMA overlays.
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In addition, these specifications are a working document and have not been adopted as a statewide standard.
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Since these activities are under development or are being evaluated, the specifications do not have a wide distribution. Administration of these activities requires CBM to develop new specifications or revise existing department specifications. Activities involving materials, research, and new products are administered by IDOT's Central Bureau of Materials (CBM).