Laboratory Evaluation of Sasobit-Modified Warm-Mix Asphalt for Alaskan Conditions

Liu, Jenny; Saboundjian, Steve; Li, Peng; Connor, Billy; Brunette, Bruce

doi:10.1061/(asce)mt.1943-5533.0000226

Cited by 57 publications

(18 citation statements)

References 11 publications

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“…Wax additives are used in bitumen to improve the rutting resistance at high service temperatures [1][2][3][4][5], as well as the flow and workability [5][6][7] at paving temperatures. Wax additives can significantly reduce the asphalt mixing and pavement construction temperatures [8,9], creating remarkable environmental benefits to the asphalt industry [10].…”

Section: Introductionmentioning

confidence: 99%

“…As compared to pure waxes, the rheology of wax modified bituminous binders has been characterized much more extensively [1][2][3][4][5][6]12,[23][24][25][26][27]. However, despite the large amount of research dedicated to the rheological analysis of these materials, only a very limited number of investigations concern the dependence of these test results on specimen handling prior to the testing.…”

Section: Introductionmentioning

confidence: 99%

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Rheological characterization of wax modified bituminous binders: Effect of specimen preparation and thermal history

Laukkanen

Soenen²

2015

Construction and Building Materials

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rheological characterization of wax modified bituminous binders: Effect of specimen preparation and thermal history

Laukkanen

Soenen²

2015

Construction and Building Materials

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“…Liu et al [4] found that Sasobit-modified WMA had insignificant effects on the moisture susceptibility though it reduced mixing and compaction temperatures, in line with a field experimental feature project. Guo [5] found that the long-term water stability of Sasobit-asphalt mixture was expectedly poor owing to the lower compaction temperature.…”

Section: Advances In Materials Science and Engineeringmentioning

confidence: 60%

Effect of Short-Term Aging Process on the Moisture Susceptibility of Asphalt Mixtures and Binders Containing Sasobit Warm Mix Additive

Yang

et al. 2015

Advances in Materials Science and Engineering

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Moisture susceptibility is one of the key issues of warm mix asphalt (WMA). In this research, the moisture susceptibility of asphalt mixtures and binders containing Sasobit warm mix additive was investigated in comparison to that of hot mixture asphalt (HMA) through laboratory aging experiments. The WMA asphalt mixtures were aged in the laboratory at three aging temperatures and times. The moisture susceptibility of the asphalt mixtures was measured through the laboratory immersed Marshall test and freeze-thaw splitting test. The surface free energy (SFE) of asphalt binders extracted from WMA asphalt mixtures was determined by the sessile drop method. The results show that the aging time and temperature have a significant effect on the improvement in moisture susceptibility in terms of both the freeze-thaw splitting strength ratios and the residual Marshall stability of asphalt mixtures containing Sasobit warm mix additive. The SFE of asphalt binders extracted from Sasobit warm mix increased with the aging time and temperature. The moisture susceptibility of the asphalt mixtures and binders containing Sasobit warm mixes was similar to or even greater than that of HMA aging under certain conditions.

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“…When decreasing the temperature, the additive can crystallize inside the asphalt, increasing its stiffness. Therefore, some researchers have reported an increase in the resistance to permanent deformation of WMA mixtures manufactured with asphalt modified with Sasobit ® (Biro et al 2009;Goh and You 2009;Silva et al 2010;Hossain et al 2011;Liu et al 2011;Capitão et al 2012;Wu and Zeng 2012;Xiao et al 2012a;Jamshidi et al 2013Jamshidi et al , 2013a. For example, Hossain et al (2011) report an increase in the maximum service temperature performance grading (PG) of 6 °C (from PG 64 °C to 70 °C) when the base asphalt cement was modified with 2 % Sasobit ® by weight of asphalt.…”

Section: Modification Of the Asphalt Or Asphalt Mixture With Additivesmentioning

confidence: 99%

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

Quintana¹,

Hernández-Noguera²,

Reyes³

2015

ing.inv.

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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.

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Laboratory Evaluation of Sasobit-Modified Warm-Mix Asphalt for Alaskan Conditions

Cited by 57 publications

References 11 publications

Rheological characterization of wax modified bituminous binders: Effect of specimen preparation and thermal history

Rheological characterization of wax modified bituminous binders: Effect of specimen preparation and thermal history

Effect of Short-Term Aging Process on the Moisture Susceptibility of Asphalt Mixtures and Binders Containing Sasobit Warm Mix Additive

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

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