Performance of warm mix asphalt containing Moringa oleifera Lam seeds oil: Rheological and mechanical properties

Rodrigues, Yury Ouriques; Costa, Daniel Beserra; Lucena, Lêda Christiane de Figueiredo Lopes; Lopes, Matheus Costa

doi:10.1016/j.conbuildmat.2017.07.194

Cited by 18 publications

(9 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although the reduction of mixing and compaction temperatures were not relatively considerable, the possibility of using lower temperatures than the established by the viscosity test can be studied (Rodrigues et al 2017). The addition of oil promotes physicochemical changes that affect not only the consistency: they can also provide increase in the wetting capability of asphalt binders.…”

Section: Asphalt Bindersmentioning

confidence: 99%

“…Among the organic additives, it is worth highlighting the use of oils. In Brazil, several studies (Pilati, 2008;Ribeiro, 2011;Lucena et al, 2016;Rodrigues et al, 2017;Portugal et al, 2017;Luz et al, 2019) have been conducted to analyze the in/luence of the addition of vegetable oils in asphalt binders and asphalt mixtures. Overall, these authors veri/ied that even though the oil addition leads to increased permanent deformation and reduces elastic recovery of asphalt binders, it enables decreases in temperatures mixing and compaction of asphalt mixtures, besides increasing storage stability and adhesion between aggregates and the asphalt binders.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical performance of asphalt mixture composed of asphalt binder modified with sunflower oil

Carvalho¹,

Barros²,

Lucena³

et al. 2022

TRANSPORTES

View full text Add to dashboard Cite

Warm Mix Asphalt (WMA) refers to a variety of asphalt mixtures produced at lower temperatures than those conventionally used to produce hot mixture asphalt. These reductions in the production temperatures provide social, economic, and environmental gains. This study aimed to investigate the mechanical properties of asphalt mixtures composed of asphalt binders modified with sunflower oil at the addition contents of 1%, 2%, and 3%. Indirect tensile strength, resilient modulus, water sensitivity, dynamic modulus, rutting resistance, and fatigue life of the asphalt mixtures were evaluated. Results showed that the mechanical performance of asphalt mixtures composed of oil-modified asphalt binder decreased compared to that of the mixture with neat asphalt binder, even though all of them are suitable for application in surface courses according to the current technical requirements for asphalt concretes. However, asphalt mixtures with sunflower oil-modified binders presented enhances in adhesion, which indicates less susceptibility to moisture than their equivalent non-modified.

show abstract

Section: Asphalt Bindersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical performance of asphalt mixture composed of asphalt binder modified with sunflower oil

Carvalho¹,

Barros²,

Lucena³

et al. 2022

TRANSPORTES

View full text Add to dashboard Cite

show abstract

“…Warm mix asphalt (WMA) refers to a form of asphalt mixture with mixing and compaction temperatures 20-55 • C lower than typical hot mix asphalt (HMA) [1][2][3]. The goal of WMA is to produce mixtures with substantially the same road performance and construction workability as HMA under significantly reduced production temperatures [4][5][6][7][8]. Due to the decrease of production temperature, WMA technology boasts many environmental benefits such as reducing fuel and energy consumption, cutting down harmful gas emissions and preventing construction personnel from toxic asphalt smoke [4,5,[9][10][11][12], which has been developed rapidly in the past decades.…”

Section: Introductionmentioning

confidence: 99%

“…The goal of WMA is to produce mixtures with substantially the same road performance and construction workability as HMA under significantly reduced production temperatures [4][5][6][7][8]. Due to the decrease of production temperature, WMA technology boasts many environmental benefits such as reducing fuel and energy consumption, cutting down harmful gas emissions and preventing construction personnel from toxic asphalt smoke [4,5,[9][10][11][12], which has been developed rapidly in the past decades. The decrease of temperature also has 2 of 19 many technological benefits such as delaying aging of asphalt cement, extending transport distance, improving compaction effect during cold weather, reducing pavement cooling time for faster opening to traffic, and using higher blends of recycled asphalt pavement material (RAP) in the mixture [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Research on the Mechanism of Surfactant Warm Mix Asphalt Additive-Based on Molecular Dynamics Simulation

Zhao

Dong

Yang³

et al. 2021

Coatings

View full text Add to dashboard Cite

Warm mix asphalt (WMA) technology can bring certain environmental and technical benefits through reducing the temperature of production, paving, and compaction of mixture asphalt. Recent studies have shown that some WMA additives are able to reduce the temperature by increasing the lubricating properties of asphalt binder-based on the tribological theory, this paper studied the mechanism of adsorbing and lubricating film of base asphalt and WMA on the surface of stone by molecular dynamics (MD) simulation method, and the effect of surfactant WMA additive on the lubrication performance of the shear friction system of “stone–asphalt–stone”. The model of base asphalt lubricating film, including saturates, aromatics, resin and asphaltene, as well as the model of warm mix asphalt lubricating film containing imidazoline-type surfactant WMA (IMDL WMA) additive molecule, were established. The shear friction system of “stone–asphalt–stone” of base asphalt and warm mix asphalt was built on the basis of an asphalt lubrication film model and representative calcite model. The results show that the addition of IMDL WMA additive can effectively improve the lubricity of asphalt, reduce the shear stress of asphalt lubricating film, and increase the stability of asphalt film. The temperature in the WMA lubricating film rises, while the adsorption energy on the stone surface decreases with the increase of shear rate, indicating that the higher the shear rate is, the more unfavorable it is for the WMA lubricating film to wrap on the stone surface. In addition, the shear stress of the WMA lubricating film decreased with increasing temperature, while the shear stress of the base asphalt lubricating film increased first and then decreased, demonstrating that the compactability of the asphalt mixture did not improve linearly with the increase of temperature.

show abstract

“…Os trabalhos de Motta (2011) e Merighi (2015) verificaram por meio de ensaios realizados em laboratório e em campo, que o desempenho das misturas asfálticas mornas, que empregam aditivos surfactantes, foi semelhante ao verificado em misturas asfálticas quentes, salientando-se ainda a redução de emissões de poluentes e diminuição do uso de combusteis fósseis, observadas durante a preparação das misturas mornas analisadas. Recentemente, na pesquisa desenvolvida por Rodrigues et al (2017) constatou-se a viabilidade do emprego de óleo de Moringa como aditivo em misturas asfálticas mornas, visto que a adição do mesmo contribuiu com a melhora das propriedades mecânicas das misturas asfálticas mornas. Diante do exposto, a técnica da mistura asfáltica morna é uma realidade no país e já está presente em várias obras de pavimentação, principalmente com o emprego de aditivos surfactantes.…”

Section: Misturas Asfálticas Mornasunclassified

Potencial do emprego de misturas de bioligante e agregados usinadas a quente para revestimentos e bases de pavimentos.

Camargo¹

View full text Add to dashboard Cite

Em primeiro lugar agradeço a Deus por sempre demonstrar sua misericórdia e amor pela minha vida. Aos meus pais José e Martha, pelo amor, incentivo, confiança e por sempre estarem presentes em minha vida. Aos meus queridos avós Eudocia e José (in memorian) pelo carinho sempre demonstrado. À professora Liedi Bernucci pela orientação, incentivo, paciência, oportunidade de aprendizado, confiança depositada, compreensão, carinho, dedicados ao longo do mestrado, principalmente em momentos difíceis e delicados que enfrentei. Aos amigos do Laboratório de Tecnologia de Pavimentação LTP-USP que conheci ao longo do mestrado especialmente à Professora Rosângela Motta,

show abstract

Performance of warm mix asphalt containing Moringa oleifera Lam seeds oil: Rheological and mechanical properties

Cited by 18 publications

References 12 publications

Mechanical performance of asphalt mixture composed of asphalt binder modified with sunflower oil

Mechanical performance of asphalt mixture composed of asphalt binder modified with sunflower oil

Research on the Mechanism of Surfactant Warm Mix Asphalt Additive-Based on Molecular Dynamics Simulation

Potencial do emprego de misturas de bioligante e agregados usinadas a quente para revestimentos e bases de pavimentos.

Contact Info

Product

Resources

About