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effects of recycled shingle and virgin asphalt binder

Effects of Recycled Shingle and Virgin Asphalt Binder

May 26, 2016· The use of recycled asphalt shingles RAS in asphalt concrete leads to questions regarding the mixing of recycled and virgin asphalt binders. These questions concentrate on: the degree of mixing, whether mixing or blending of the asphalt binders occurs, and how the degree of mixing affects performance.

Author: Brian Hill, He Wang, William G. Buttlar

Effects of Recycled Shingle and Virgin Asphalt Binder

A softer virgin asphalt binder should be used to account for the much stiffer asphalt in the roofing shingles. The properties of shingle HMA mixture can be comparable to the properties of...

Effect of recycled asphalt shingles on physical

This study evaluated the effect of recycled asphalt shingles RAS on virgin asphalt binders. • The addition of RAS resulted in an improved resistance to rutting, but higher susceptibility to low-temperature cracking. • The test results were inconclusive regarding the fatigue resistance of the RAS-containing asphalt binders.

Cited by: 19

Effect of recycled asphalt shingles on physical

This study evaluated the effect of recycled asphalt shingles RAS on virgin asphalt binders. The addition of RAS resulted in an improved resistance to rutting, but higher susceptibility to low-temperature cracking. The test results were inconclusive regarding the fatigue resistance

Cited by: 19

Effect of Reclaimed Asphalt Pavement and Recycled Asphalt

This study evaluated the effect of reclaimed asphalt pavement RAP and recycled asphalt shingles RAS on virgin binder FED using the binder fracture energy BFE test. The objective was to determine whether RAP and RAS can be used with soft virgin binders to achieve satisfactory fracture tolerance.

Author: George Lopp, David Hernando, Reynaldo Roque, Yu Yan

Recycled Asphalt Shingles in Asphalt Pavements

Incorporating waste shingles into asphalt pavement can also yield positive results on PG graded binders. Along with this, Krivit 2010 shows how the high temperature grade of the virgin asphalt binder is improved by adding shingles to a mixture, but the low temperature grade is reduced. The change

INVESTIGATING EFFECTS OF AMINE BASED MODIFIER

characteristics of particle filled viscous medium such as asphalt binder in presence of Recycled Asphalt Shingles RAS. In this study, virgin asphalt binder PG 64-22, three different percentages 20, 30 and 40% of tear-off shingles and modifiers; Rediset, Evotherm and Bio-binder were used. The tear-off shingles

Recycled Asphalt Shingles in Asphalt Pavements

Incorporating waste shingles into asphalt pavement can also yield positive results on PG graded binders. Along with this, Krivit 2010 shows how the high temperature grade of the virgin asphalt binder is improved by adding shingles to a mixture, but the low temperature grade is reduced. The change

Effect of recycled asphalt shingles on physical... DeepDyve

Aug 01, 2013· The former is typically referred to as “manufacturer scrap”, while the latter is generally referred to as “tear-offs”. Most asphalt binders used in the manufacture of asphalt shingles are “air-blown,” a process that oxidizes ages the asphalt binder and thus increases its viscosity.

Published in: Construction and Building Materials · 2013Authors: Ala R Abbas · Umme Amina Mannan · Samer DessoukyAffiliation: University of Akron · University of Texas at San AntonioAbout: Gel permeation chromatography · Fourier transform infrared spectrometry

Evaluation of the Combined Effects of Recycled Asphalt

Evaluation of the Combined Effects of Recycled Asphalt Pavement RAP, Recycled Asphalt Shingles RAS, and Different Virgin Binder Sources on Performance of the Blended Binder for Mixes with Higher Percentages of RAP and RAS

Effect of Reclaimed Asphalt Pavement and Recycled Asphalt

Results showed that the use of soft virgin binders effectively compensated for the stiffening effect of RAP/RAS in terms of true grade. The addition of RAP binder and MW shingle binder increased the FED of unmodified binders, whereas the opposite trend was observed for TO shingle binder.

Investigation on the Effects of Recycled Asphalt Shingle

Investigation on the Effects of Recycled Asphalt Shingle as an Additive to Hot-Mix Asphalt... Asphalt roofing shingles constitute one of the highest percentages in municipal solid waste... roofing shingles and virgin binder was investigated based on a modified Marshall stability

Pooling Our Research: Using Recycled Shingles in

ing the effects of blending RAS binders with virgin and recycled asphalt pavement binders on low-temperature cracking, rutting and fatigue. • Create a comprehensive database on the performance of RAS in HMA applications.

Recycled Roofing Shingles vaasphalt.org

Asphalt shingles contain anywhere from 19 to 36 percent of liquid asphalt binder making the inclusion of even a small percentage of shingles have a significant effect on the amount of new asphalt binder required in an asphalt mix.

Influence of Recycled Asphalt Shingles on Asphalt

The purpose of this research was to examine the effects of recycled asphalt shingles on asphalt binder content, mixture stiffness, and laboratory rutting performance For this project, shingles were added to hot mix asphalt mixtures at 2.5, 5, and 10 percent by weight of the total mix. This study showed that incorporating shingles in

Recycled Roof Shingles | Asphalt Pavement Association of

Recycled roofing shingles. Asphalt shingles contain anywhere from 19 to 36 percent of liquid asphalt binder, making the inclusion of even a small percentage of shingles have a significant effect on the amount of new asphalt binder required in an asphalt mix. Asphalt shingles also contain other materials fibers, fine aggregate and mineral filler...

Recycled Asphalt Shingles in Hot Mix Asphalt

costs of virgin asphalt binder due to the addition of RAS without sacrificing pavement performance, if appropriate quality assurance and quality control procedures are followed. This is the most important economic driving force accelerating the development of shingle recycling today. The cost of virgin asphalt binder has been rising rapidly

Evaluation of the Combined Effects of Recycled Asphalt

Principal Investigator: John Harvey | University of California, Davis. As virgin material sources become increasingly scarce, and the volume of pavement material that is routinely recycled increases, it becomes more desirable to use significantly higher amounts of RAP and RAS for pavement construction.

No. 0092-10-06 Wisconsin Highway Research Program •

Effects of Recycled Shingles and Increased RAP Percentages A s asphalt binder becomes more expensive, the use of recycled asphalt materials becomes more attractive. Recycled asphalt pavement RAP and recycled asphalt shingles RAS offer a partial substitute for virgin aggregate and binder in asphalt pavement mixtures. Their use reduces

Multi-Scale Evaluation of the Effect of RAS... trid.trb.org

Multi-Scale Evaluation of the Effect of RAS on the Fracture Properties of Asphalt Mixtures. A comprehensive laboratory testing program was conducted to examine the blending between recycled asphalt shingles RAS and virgin asphalt binders and to evaluate the effect of RAS on resistance of asphalt mixes to fatigue and low-temperature cracking.

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