Comparison of asphalt rubber-aggregate and polymer modified asphalt–aggregate systems in terms of surface free energy and energy indices

Álvarez, Allex E.; Ovalles, Evelyn; Martin, Amy Epps

doi:10.1016/j.conbuildmat.2012.04.029

Cited by 41 publications

(20 citation statements)

References 20 publications

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“…The quality of adhesion at the asphalt-aggregate interfaces of typical material combinations used in Texas PFC mixtures was recently evaluated using surface free energy (SFE) measurements and energy indices [47]. Corresponding research concluded that PM-and AR-asphalts can offer similar quality of adhesion in both dry condition and wet condition (i.e., similar resistance to fracture and moisture damage).…”

Section: Mixture Structural Lifementioning

confidence: 99%

A review of the characterization and evaluation of permeable friction course mixtures

Álvarez

Reyes-Ortiz

Recasens³

2014

Ingeniare. Rev. chil. ing.

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Permeable friction course (PFC) mixtures are a special type of hot mix asphalt (HMA) mixtures characterized by high total air voids (AV) content values to provide high permeability and noise reduction effectiveness, while high surface texture conditions can be ensured. Recent advancements in materials and HMA mixture evaluation led to increase the use of PFC mixtures over the last two decades as an alternative to improve highway safety and noise reduction. However, these developments on PFC mixtures generate the need for a comprehensive review to facilitate corresponding practical implementation. Consequently, the main objective of this paper is to provide a summary of research findings on PFC mixtures to improve the conception, design, and use of these HMA mixtures. In this context, the paper includes aspects related to advantages and limitations, volumetric properties, structural life, mixture distresses, and functionality of PFC mixtures. The aspects summarized provide a baseline for improvement of the current design and conception of PFC mixtures and offer guidelines for some future research developments.Keywords: Permeable friction course (PFC), mix design, hot mix asphalt (HMA), noise reductionpavements, drainable pavements. RESUMEN Las mezclas drenantes son un tipo especial de mezclas asfálticas caracterizadas por un alto contenido total de vacíos, que proporcionan alta permeabilidad y capacidad de reducción de los niveles de ruido, mientras se garantizan altos valores de textura superficial. Avances recientes en materiales y evaluación de mezclas asfálticas conllevaron al incremento del uso de mezclas drenantes en las dos últimas décadas

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Section: Mixture Structural Lifementioning

confidence: 99%

A review of the characterization and evaluation of permeable friction course mixtures

Álvarez

Reyes-Ortiz

Recasens³

2014

Ingeniare. Rev. chil. ing.

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“…The final output of the asphaltene model is shown in Figure 15. The system density was approximately 0.88 g/cm 3 , and the size of three sides of system was around 26.2Å.…”

Section: Mechanical Property Simulation and Analysis Of Asphaltenementioning

confidence: 99%

“…The density was set at 0.1 g/cm 3 , and the initial model of colloid unit cell at the density of 0.1 obtained is shown in Figure 3.…”

Section: Mechanical Property Simulation Analysis Of Colloidmentioning

confidence: 99%

“…The C 64 H 52 S 2 was used to represent asphaltene, and the degree of polymerization at 10 was used to structure asphaltene model. First, the degree of polymerization of asphaltene structure at 10 was placed into the vacuum space where the length of three sides was 6 nm, and the initial density was set at 0.1 g/cm 3 . The initial model of asphaltene obtained is shown in Figure 13.…”

Section: Mechanical Property Simulation and Analysis Of Asphaltenementioning

confidence: 99%

“…At present, scholars at home and abroad have more and more research perspectives on polymer materials [1][2][3]. Besides, the research process and methods are also diverse.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Property and Analysis of Asphalt Components Based on Molecular Dynamics Simulation

Guo

et al. 2017

Journal of Chemistry

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The asphalt-aggregate interface interaction plays a significant role in the overall performances of asphalt mixture. In order to analyze the chemical constitution of asphalt effects on the asphalt-aggregate interaction, the average structure C 64 H 52 S 2 is selected to represent the asphalt, and the colloid, saturated phenol, and asphaltene are selected to represent the major constitutions in asphalt. The molecular models are established for the three compositions, respectively, and the Molecular Dynamics (MD) simulation was conducted for the three kinds of asphaltene-aggregate system at different presses. Comparing the value of Young modulus of these three polymers, the maximum modulus value of asphaltene was 2.80 GPa, the modulus value of colloid was secondary, and the minimum modulus of saturated phenol was 0.52 GPa. This result corresponds to conventional understanding.

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Controllable synthesis of network polyacrylate from hyperbranched polyesters and their effect to bond strength of asphalt

Zhang

Guo

et al. 2020

Polymers for Advanced Techs

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In this work, a couple of network polyacrylates (NPA‐HBPE‐G2/G3/G4) were synthesized from the different generation hyperbranched polyester (HBPE) and acrylate monomers, and used to enhance the interfacial adhesion of asphalt with inorganic minerals. The molecular structure and respective performance of NPA‐HBPE were characterized by FTIR, 1H NMR, TGA and fluorescence microscopy. The results showed that NPA‐HBPE had a great number of polar functional groups on the branched chains, and processed superior thermal stability, good ductility and excellent compatibility with the asphalt. More importantly, the NPA‐HBPE demonstrated a significant effect on improving the bond strength of asphalts with cement mortar block. As the volume addition of NPA‐HBPE‐G4 was 10 wt%, the maximum bond strength of modified asphalts reached 1.23 MPa while that the base asphalt was only 0.48 MPa. Furthermore, the adhesive force of NPA‐HBPE‐G4 modified asphalts was high to 333 nN, and fairly better than that of base asphalts (71 nN). This study would provide a simple and efficient approach to improve the bond strength of asphalt, and would have enormous potential in the engineering field.

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Comparison of asphalt rubber-aggregate and polymer modified asphalt–aggregate systems in terms of surface free energy and energy indices

Cited by 41 publications

References 20 publications

A review of the characterization and evaluation of permeable friction course mixtures

A review of the characterization and evaluation of permeable friction course mixtures

Mechanical Property and Analysis of Asphalt Components Based on Molecular Dynamics Simulation

Controllable synthesis of network polyacrylate from hyperbranched polyesters and their effect to bond strength of asphalt

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