Characterization and Best Use of Recycled Asphalt Shingles
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Characterization and Best Use of Recycled Asphalt Shingles.

Characterization and Best Use of Recycled Asphalt Shingles ...

Recycled asphalt shingles (RAS) often containing more than 20 percent asphalt binder has become another black gold in the asphalt industry. There are two basic types of RAS scraps in the market: tear-off asphalt shingles (TOAS) and manufacture waste asphalt shingles (MWAS). Both TOAS and MWAS have been used in hot-mix asphalt (HMA) paving in Texas.

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Characterization of Recycled Asphalt Shingles ...

May 24, 2016  While the recycling of asphalt shingles is beneficial in reducing the consumption of virgin materials, road performance should not be compromised. One major concern with recycled asphalt shingles (RAS) relates to the variability in the properties of the recycled materials originating from different sources.

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Using recycled asphalt shingles in asphalt pavements ...

The use of recycled asphalt shingles (RAS) in asphalt pavement throughout the U.S. is steadily increasing. Using RAS saves money, conserves resources and can produce good quality pavements. According to the U.S. Environmental Protection Agency, approximately 11 million tons of asphalt roofing shingles are disposed of each year.

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Challenges in Characterization of Recycled Asphalt Shingles

Using recycled asphalt pavement (RAP) in asphalt concrete has been practiced for decades. Recent attention has been mostly placed on increasing the amount of RAP, as well as using recycled asphalt shingles (RAS) in asphalt concrete. Use of RAS in asphalt concrete poses special challenges as it includes very stiff binder and mastic.

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Analysis of Recycling of Asphalt Shingles in Pavement ...

There are environmental benefits to the use of recycled asphalt shingles in asphalt production for use in road construction. The greatest GHG emission reductions come from the largest percentage inclusion of both reclaimed asphalt pavement and recycled shingles. 164.5 141.5 155.4 130.5 124.1 117.5 132.6 150.3-50 0 50 100 150 200 250 Virgin 20% ...

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NCAT Report 13-07 RECLAIMED ASPHALT SHINGLES ...

RECLAIMED ASPHALT SHINGLES CHARACTERIZATION: BEST PRACTICES By J. Richard Willis, Ph.D. May 2013. RECLAIMED ASPHALT SHINGLES CHARACTERIZATION: ... It has been estimated that 11 million tons of roofing shingles are available for recycling each year in the United States (1, 7). 10 million tons are generated as tear-off or post-consumer (PC)

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Challenges in Characterization of Recycled Asphalt Shingles

Jul 20, 2014  Challenges in Characterization of Recycled Asphalt Shingles. Using recycled asphalt pavement (RAP) in asphalt concrete has been practiced for decades. Recent attention has been mostly placed on increasing the amount of RAP, as well as using recycled asphalt shingles (RAS) in asphalt concrete. Use of RAS in asphalt concrete poses special ...

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0-6614: Use of Recycled Asphalt Shingles in HMA

0-6614: Use of Recycled Asphalt Shingles in HMA Background In the last several years, both reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) have been widely used in paving Texas highways. Compared to RAP, RAS has two features: 1) much higher asphalt binder content, and 2) super stiff asphalt binder. Thus, the use of

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Performance of Recycled Asphalt Shingles in Hot Mix Asphalt

environmental officials to determine the best practices for the use of recycled asphalt shingles in hot-mix asphalt applications. Agencies participating in the study include Missouri (lead state), California, Colorado, Illinois, Indiana, Iowa, Minnesota, Wisconsin, and the Federal Highway Administration.

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Recycled Asphalt Shingle Uses and Markets

Jan 20, 2020  At present, asphalt shingle recyclers can generate revenue in the form of tipping fees to accept old shingles (typically lower than at landfills), as well as through marketing activities to sell processed material. Markets for recycled asphalt shingles include existing early-stage markets such as hot-mix asphalt and cold patch, as well as other emerging and potential markets.

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Evaluation of use of recycled asphalt shingles in HMA ...

Evaluation of use of recycled asphalt shingles in HMA January 2013 Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions 82:367-402

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ShingleRecycling Asphalt Roads

Recycled-Asphalt-Shingles-as-Structural-Fill combined w Bottom Ash Foundry Slag.pdf. ... Characterization and Best Use OF RAS In Hot-Mix Asphalt.pdf. 2013_09 IA State Report Pooled Fund Study Performance of Recycled Asphalt Shingles in Hot Mix Asphalt.pdf. 2014_07 NCAT 14-06 Case Studies of Successful use of RAS and RAP.pdf. 2014_10 TX AM

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Biodegradation of waste asphalt shingle by white rot fungi ...

Characterization and Best Use of Recycled Asphalt Shingles in Hot-Mix Asphalt Texas AM Transportation Institute, Texas AM University System , Arlington ( 2013 )

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Construction and Demolition Debris Management in the ...

use in manufactured products was the dominant next use for asphalt concrete and metals. Aggregate was the main destination for CD concrete. Landfills were the primary destination for CD debris wood, gypsum drywall, brick and clay tile, and asphalt shingles. Material Type in CD Debris Landfill Next Use Total Next Compost Use and Mulch ...

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Composite vs Asphalt: Is Composite Roof Shingles Better ...

Jun 25, 2021  Whereas asphalt shingles cost between $1.50 and $5.50 a square foot, averaging about $150 to $550 per roofing square. Prices are cheaper for 3-tab (basic) shingles ($0.90 sq ft) than architectural ($4.50 sq ft). Asphalt shingles also come in bundles, although how many bundles cover one roofing square varies by brand.

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Mechanical characterization of asphalt tear-off roofing ...

asphalt shingle recycling and to evaluate the beneficial uses of tear-off shingles in HMA applications. The conducted research con-sists of following five tasks: (1) literature review on the beneficial use of roofing shingles in HMAs, (2) the characterization of a phys-ical property of extracted binder from the obtained tear-off shin-

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Recycling Tear-Off Asphalt Shingles

CMRA Recycling Tear-Off Asphalt Shingles Best Practices Guide Page 3 The composition of a typical, new residential asphalt shingle, made today, is shown in Table 1. Table 1 - Typical Asphalt Shingle Composition (Percent by Weight) 32% to 42% Coating filler (limestone or fly ash) 28% to 42% Granules (painted rocks coal slag)

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NC DEQ: Asphalt Shingles

Post Consumer Recycled Asphalt Shingles (PRAS) Since 2011, North Carolina paving companies have been able to use clean post-consumer recycled asphalt shingles (PRAS) as feedstock material in hot mix asphalt on North Carolina Department of Transportation (DOT) road projects. Asphalt shingles are considered clean if metal, wood, insulation, flashing and other trash are removed.

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Number E-C188 October 2014

Application of Reclaimed Asphalt Pavement and Recycled Asphalt Shingles in Hot-Mix Asphalt National and International Perspectives on Current Practice Papers from a Workshop January 12, 2014 Washington, D.C. Sponsored by General Issues in Asphalt Technology Committee Characteristics of Asphalt Materials Committee

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NCAT Report 13-07 RECLAIMED ASPHALT SHINGLES ...

RECLAIMED ASPHALT SHINGLES CHARACTERIZATION: BEST PRACTICES By J. Richard Willis, Ph.D. May 2013. RECLAIMED ASPHALT SHINGLES CHARACTERIZATION: ... It has been estimated that 11 million tons of roofing shingles are available for recycling each year in the United States (1, 7). 10 million tons are generated as tear-off or post-consumer (PC)

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Challenges in Characterization of Recycled Asphalt Shingles

Jul 20, 2014  Challenges in Characterization of Recycled Asphalt Shingles. Using recycled asphalt pavement (RAP) in asphalt concrete has been practiced for decades. Recent attention has been mostly placed on increasing the amount of RAP, as well as using recycled asphalt shingles (RAS) in asphalt concrete. Use of RAS in asphalt concrete poses special ...

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Recycled Asphalt Shingles

Diverting asphalt shingles from the landfill for recycling into hot mix asphalt has demonstrated benefits including the containment or reduction of paving costs and the advancement of sustainability directives. On the other hand, a recycled asphalt shingle (RAS) program may face challenges such as market fluctuations and organizational logistics.

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Reclaimed Asphalt Shingles (RAS)

RECYCLED HOT MIX ASPHALT MIXTURE (PERMISSIVE USE OF RECYCLED ASPHALT SHINGLES) DATED Feb 2013 03SP 501(I) • Allows the permissive use of RAS • Addresses the combined use of RAP and/or RAS MDOT RAP /RAS Spec 2013

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Welcome to the Future of Asphalt Shingle Recycling

Welcome to the Future of Asphalt Recycling. By Dan Boss 04-21-2021. Each year in the U.S., roughly 13 million tons of asphalt material gets torn off of old roofs to make way for new asphalt shingles. Currently, only about 10% of that tear-off gets recycled for use in paving and other roadway projects. That leaves about 12 million tons of waste ...

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Biodegradation of waste asphalt shingle by white rot fungi ...

Characterization and Best Use of Recycled Asphalt Shingles in Hot-Mix Asphalt Texas AM Transportation Institute, Texas AM University System , Arlington ( 2013 )

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(PDF) Effect of Reclaimed Asphalt Pavement and Recycled ...

May 17, 2019  The current design guideline of asphalt mixtures containing recycled asphalt shingles requires accurate characterization of shingle binder and its effect on virgin binder.

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Best Practices for RAP and RAS Management

Other recycled materials such as shingles, slag, ground tire rubber, glass, and cellulose fibers produced from recycled paper have also been used in numerous asphalt projects for decades. Recycling of asphalt pavements dates back to 1915 (Kandhal Mallick, 1997),

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Characterization of the air void content of fine aggregate ...

The use of recycled asphalt shingles (RAS) has been increasing rapidly due to potential environmental and cost-saving benefits. RAS contains 20–30% aged asphalt binder that can replace a ...

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Composite vs Asphalt: Is Composite Roof Shingles Better ...

Jun 25, 2021  Whereas asphalt shingles cost between $1.50 and $5.50 a square foot, averaging about $150 to $550 per roofing square. Prices are cheaper for 3-tab (basic) shingles ($0.90 sq ft) than architectural ($4.50 sq ft). Asphalt shingles also come in bundles, although how many bundles cover one roofing square varies by brand.

Get Price

Finding markets for recycled roof shingles Asphalt magazine

Finding markets for recycled roof shingles. When it comes to recycling/repurposing asphalt roof shingles and production scraps, the roofing and asphalt industries have put their money where their mouths are by finding ways to use these materials in several asphalt-related applications. “It is generally accepted that at least 11 million tons ...

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Roofing giant GAF to produce recycled asphalt shingles

Apr 19, 2021  [Photo: Courtesy of GAF] Recycling asphalt is not a new technique; roof shingles are sometimes recycled into paving shingles, but it’s proved easier for

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Performance characterization of asphalt mixtures at high ...

N2 - Recycled materials can be used effectively in asphalt mixtures to replace virgin asphalt binder or virgin aggregates. Virgin material (asphalt binder or aggregate) can be replaced with reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) in asphalt mixtures.

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Effect of Recycling Agents on the Laboratory Performance ...

Jan 01, 2015  Characterization and Best Use of Recycled Asphalt Shingles in Hot-Mix Asphalt. Report No. FHWA/TX-13/0-6614-2, Texas AM Transportation Institute, Texas AM University System , Arlington , 2013 . Google Scholar

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