Comparison of Fatigue Resistance of HMA and WMA Mixtures Modified by SBS

Fakhri, Mansour; Ghanizadeh, Ali Reza; Omrani, Hamed

doi:10.1016/j.sbspro.2013.11.109

Cited by 39 publications

(8 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, GTR has been used in conjunction with other modifiers in asphalt mixtures, such as WMA (Warm Mix Asphalt) additives, recycled asphalt materials (RAP/RAS), rejuvenators, etc. [4,38,39].…”

Section: Rubber Modification In the Asphalt Industrymentioning

confidence: 99%

Performance Analysis of Asphalt Mixtures Modified with Ground Tire Rubber Modifiers and Recycled Materials

et al. 2019

View full text Add to dashboard Cite

The usage of Ground Tire Rubber (GTR) in asphalt pavements has gained renewed interest due to its potential sustainability, economic, and performance benefits. This study focuses on asphalt mixtures designed with three different rubber modifier products including (1) a terminal-blend GTR, (2) a dry-process, chemically processed rubber product, and (3) a terminal-blend rubber-polymer hybrid product. The modifications were incorporated into Illinois Tollway’s approved Stone Matrix Asphalt (SMA) designs using (1) a base binder (PG 58-28), (2) a softer binder (PG 46-34), and (3) a softer binder with higher recycled content. Disk-shaped Compact Tension (DC(T)) test, Hamburg Wheel Tracking Test (HWTT) and Acoustic Emission (AE) tests were performed to characterize the mixtures. The fracture energy for most mixtures met the stringent criteria of 690 J/m2 and the rut depths measured were less than 6 mm at 20,000 wheel passes. A Hamburg-DC(T) plot suggests that higher amounts of RAP/RAS (RAP: Reclaimed Asphalt Pavement; RAS: Reusable Asphalt Shingles) can be successfully used if a suitably soft base binder is employed.

show abstract

Section: Rubber Modification In the Asphalt Industrymentioning

confidence: 99%

Performance Analysis of Asphalt Mixtures Modified with Ground Tire Rubber Modifiers and Recycled Materials

et al. 2019

View full text Add to dashboard Cite

show abstract

“…While comparing the performance based on rutting, it was concluded that mixtures with Sasobit outperform all the other mixtures whereas Aspha-min incorporated mixtures were the least effective. However, in terms of fatigue life, SBS modified mixture showed higher fatigue resistance than the similar additive modified mixture at different stress levels (Fakhri et al, 2013).…”

Section: Styrene-butadiene-styrene / Additive Modified Asphaltmentioning

confidence: 88%

Development of Warm Mix Additives Modified Asphalt: The Need for Microstructural Characterization

Mamun¹,

Şirin²,

Masad³

2020

Proceedings of the International Conference on Civil Infrastructure and Construction (CIC 2020)

View full text Add to dashboard Cite

The polymer-modified asphalt (PMA) reveals different types of advantageous properties depending on the type of polymer. However, one of the unwanted changes in PMA is the required higher temperature for mixing and compaction. To reduce these temperatures, different percentages of warm mix additive (WMA) have been utilized. However, the addition of WMA can lead to different micro-nano structural changes in the PMA and can subsequently affect overall performance of the asphalt pavement. Therefore, understanding the microstructural behavior of the polymer and additive modified asphalt is crucial to achieve the desired performance. This study attempts to substantiate the effect of WMA in three different PMAs and subsequent changes in different properties. These changes can be scrutinized from different perspectives; however, correlating a basic microstructural property to the rheology of asphalt is an effective way to understand the mechanism and predict performance. In this regard, the need for microstructural evaluation in terms of nano-adhesive properties is recommended. It is expected that assessing the adhesive properties by simulating the field condition can address the phase integrity and crystal structure of PMA and subsequent desired performance of the asphalt pavement. Finally, the observed adhesive properties can be further evaluated to find the prospects of other mechanical properties. Therefore, the need for a standard microstructural evaluation method of the adhesive properties has also been addressed in this study.

show abstract

“…Another widely noted advantage of WMA technology is the opportunity for manufacturing HMA modified with recycled rubber from tires or other polymers, for which there is the need to decrease the manufacturing and compaction temperatures (Akisetty et al 2008(Akisetty et al , 2009(Akisetty et al , 2010Kim et al 2011;Shivaprasad et al 2011;Liu et al 2010;Morea et al 2012;Wu and Zeng 2012;Fakhri et al 2013;Rossi et al 2013;Hajj et al 2014;Yu et al 2014). The use of this technology in mixtures modified with recycled rubber from tires decreases the compaction temperature by between 20 °C and 30 °C without significantly affecting the engineering properties Wang 2011;Yu et al 2013Yu et al , 2014).…”

Section: Opportunity Of Usementioning

confidence: 99%

A Review of Warm Mix Asphalt Technology: Technical, Eco-nomical and Enviromental Aspects

Quintana¹,

Hernández-Noguera²,

Reyes³

2015

ing.inv.

View full text Add to dashboard Cite

In general terms, warm mix asphalt (WMA) technology has great potential for successful use in road works construction projects. However, concerns remain regarding the durability and behavior of WMA mixtures in the long term, which need to be addressed. This review focuses on the technical, economic and environmental advantages and disadvantages. The review concludes that the main advantageof this technology, at the moment, concerns the environment. At the end of this work, the authors include certain recommendations for future works in order to continue strengthening the development of WMA technology.Keywords: Warm mix asphalt, WMA, manufacturing, design, additives. RESUMENEn términos generales, la tecnología de mezcla asfáltica tibias (WMA por sus siglas en inglés) presenta un gran potencial para ser usada con éxito en proyectos de obras de construcción de obras viales. Sin embargo, aún existe preocupación en temas concernientes a la durabilidad y al comportamiento a largo de plazo de esta tecnología. Con base en una revisión bibliográfica, el artículo presenta los aspectos más importantes concernientes a la tecnología WMA. Se reportan las ventajas y desventajas técnicas, económicas y ambientales de utilizar esta tecnología reciente. Al final del documento los autores exponen algunas recomendaciones como apoyo para continuar fortaleciendo el desarrollo de la tecnología WMA.

show abstract

Comparison of Fatigue Resistance of HMA and WMA Mixtures Modified by SBS

Cited by 39 publications

References 9 publications

Performance Analysis of Asphalt Mixtures Modified with Ground Tire Rubber Modifiers and Recycled Materials

Performance Analysis of Asphalt Mixtures Modified with Ground Tire Rubber Modifiers and Recycled Materials

Development of Warm Mix Additives Modified Asphalt: The Need for Microstructural Characterization

A Review of Warm Mix Asphalt Technology: Technical, Eco-nomical and Enviromental Aspects

Contact Info

Product

Resources

About