Moisture susceptibility of warm mix asphalt: A statistical analysis of the laboratory testing results

Kavussi, Amir; Qorbani, M.; Khodaii, Ali; Haghshenas, Hamzeh F.

doi:10.1016/j.conbuildmat.2013.10.073

Cited by 70 publications

(30 citation statements)

References 11 publications

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“…The results indicated that dry samples had better mixing with binder than wet samples. The TSR value of samples with lime content ranging from 1.1% to 2.5%, Sasobit content from 0.5% to 2.5%, and fine aggregates from 66% to 74% was greater than 80% [32].…”

Section: Anti-stripping Agentsmentioning

confidence: 99%

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Effect of SBS Polymer and Anti-stripping Agents on the Moisture Susceptibility of Hot and Warm Mix Asphalt Mixtures

Omrani¹,

Ghanizadeh

Tanakizadeh

2017

CivileJournal

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The primary objective of this study is exploring the moisture susceptibility of unmodified and SBS-modified hot and warm mix asphalt mixtures. To this end, two different WMA additives including Aspha-min and Sasobit were employed to fabricate WMA specimens. The moisture susceptibility of warm polymer modified asphalt (WPMA) mixes was evaluated using modified Lottman test at 25°C according to AASHTO standard (T 283). In addition, the effect of different percentages of hydrated lime (from 0% to 2%) and Zycosoil (from 0% to 0.1%) as anti-stripping additives on the moisture susceptibility of the mixtures was explored. Based on the ITS test results, WPMA prepared with Sasobit additive and polymer modified asphalt (PMA) mixes satisfied the desirable tensile strength ratio (TSR) (above 80%) but Aspha-min WPMA mixes had TSR lower than 80%.

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Section: Anti-stripping Agentsmentioning

confidence: 99%

“…Based on previous researches, modification of bitumen with 5% SBS (by weight percent of bitumen) showed satisfactory results regarding performance of asphalt mixtures [31,32]. Therefore, this SBS percentage (5%) was added to bitumen using a high shear mixer at speed of 3500 rotation per minute for about 15 minutes.…”

Section: Methodsmentioning

confidence: 99%

Effect of SBS Polymer and Anti-stripping Agents on the Moisture Susceptibility of Hot and Warm Mix Asphalt Mixtures

Omrani¹,

Ghanizadeh

Tanakizadeh

2017

CivileJournal

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“…In the laboratory design of mixtures, this phenomenon is not apparent because, in general, the stone aggregate is dried in ovens before being mixed with the binder. To increase the resistance to moisture damage, some researchers have opted to add hydrated lime (conventional and in nanoparticles) to the stone aggregate or anti-stripping additives, such as amines, diamines, liquid polymers, Portland cement, fly ash, and combustion powder (e.g., Buddhala et al 2011;Hashemian 2011, 2012;Cheng et al 2011;Arabani et al 2012;Hossain et al 2012;Shivaprasad et al 2011aShivaprasad et al , 2012Xiao et al 2010Xiao et al , 2012Diab et al 2013;Xiao et al 2013;Kavussi et al 2014). Certain researchers, such as Kanitpong et al (2012) and Sangsefidi et al (2014), report that the deficiencies found in WMA can be addressed by the use of good stone aggregates and an optimum grading curve, which generates high adhesion properties with the asphalt and cohesion.…”

Section: Resistance and Durabilitymentioning

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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“…al. [20] investigated the effect of aggregate gradation, hydrated lime content and Sasobit content on moisture damage of warm mix asphalt. An experimental study [21] used RSM to assess the effects of aggregate gradation and lime content on stripping of HMA in terms of the strength and stiffness.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, there has been growing attention to the application of RSM in asphalt research [17][18][19][20][21][22][23][24]. Chávez-Valencia et.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the mix design of cold bitumen emulsion mixtures using response surface methodology

Nassar

Thom

Parry

2016

Construction and Building Materials

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Nassar, Ahmed I. and Thom, Nicholas and Parry, Tony (2016) Optimizing the mix design of cold bitumen emulsion mixtures using response surface methodology. Construction and Building Materials, 104 . pp. 216-229. ISSN 1879-0526 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/33157/1/First%20paper-%20Construction%20and %20Building%20Materials%20Journal.pdf The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. AbstractCold mix asphalt (CMA) has been increasingly recognized as an important alternative worldwide. One of the common types of CMA is cold bitumen emulsion mixture (CBEM). In the present study, the optimization of CBEM has been investigated, to determine optimum proportions to gain suitable levels of both mechanical and volumetric properties. A central composite design (CCD) with response surface methodology (RSM) was applied to optimize the mix design parameters, namely bitumen emulsion content (BEC), pre-wetting water content (PWC) and curing temperature (CT). This work aimed to investigate the interaction effect between these parameters on the mechanical and volumetric properties of CBEMs. The indirect tensile stiffness modulus (ITSM) and indirect tensile strength (ITS) tests were performed to obtain the mechanical response while air voids and dry density were measured to obtain volumetric responses.The results indicate that the interaction of BEC, PWC and CT influences the mechanical properties of CBEM. However, the PWC tended to influence the volumetric properties more significantly than BEC. The individual effects of BEC and PWC are important, rather than simply total fluid content which is used in conventional mix design method. Also, the results show only limited variation in optimum mix design proportions (BEC and PWC) over a range of CT from 10 o C to 30 o C. The variation range for optimum BEC was 0.42% and 0.20% for PWC. Furthermore, the experimental results for the optimum mix design were corresponded well with model predictions. It was concluded that optimization using RSM is an effective approach for mix design of CBEMs.

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Moisture susceptibility of warm mix asphalt: A statistical analysis of the laboratory testing results

Cited by 70 publications

References 11 publications

Effect of SBS Polymer and Anti-stripping Agents on the Moisture Susceptibility of Hot and Warm Mix Asphalt Mixtures

Effect of SBS Polymer and Anti-stripping Agents on the Moisture Susceptibility of Hot and Warm Mix Asphalt Mixtures

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

Optimizing the mix design of cold bitumen emulsion mixtures using response surface methodology

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