Toward Performance-Based Specifications for Bitumen and Asphalt Mixtures.

Kulash, D J; Shrp,

doi:10.1680/itran.1994.26794

Cited by 9 publications

(3 citation statements)

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“…However, the resilient modulus decreased at all temperatures and with an increase in the loading frequency. The resilient modulus can be used as a tool to evaluate the performance of asphalt pavement for low temperature cracking, fatigue, and permanent deformation [ 50 , 51 , 52 ]. Finally, these results indicate that the HMA-0 is more susceptible to low temperature cracking because of the increase in the resilient modulus at low temperatures, it is more susceptible to fatigue cracking because of the decrease in the resilient modulus at intermediate temperatures, and more susceptible to permanent deformation because of the decrease in the resilient modulus at high temperatures.…”

Section: Resultsmentioning

confidence: 99%

Investigating the Mechanical Properties and Durability of Asphalt Mixture Modified with Epoxidized Natural Rubber (ENR) under Short and Long-Term Aging Conditions

et al. 2022

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Modifiers such as fibers, fillers, natural and synthetic polymer extenders, oxidants and anti-oxidants, and anti-stripping agents are added to produce modified asphalt. However, polymers are the most widely utilized modifiers to enhance the function of asphalt mixtures. The objective of this research was to evaluate the mechanical properties and durability of epoxidized natural rubber (ENR)-modified asphalt mix under short- and long-term aging conditions. The physical and rheological characteristics of the base asphalt and ENR-modified asphalt (ENRMA) were tested. In order to evaluate the mechanical properties and durability of the modified mixtures, the resilient modulus of the ENR–asphalt mixtures under unaged, and short- and long-term aging conditions at various temperatures and frequencies was obtained. Furthermore, the resistance to moisture damage of asphalt mixtures was investigated. The findings showed that the stiffness of the ENR–asphalt mixes increased because of the mutual influence of short- and long-term aging on the mixes. In addition, ENR reduced the susceptibility to moisture damage. The stiffness of the mixes was influenced by the temperature and frequencies. By using mathematical modelling via the multivariable power least squares method, it was found that temperature was the dominant factor among all other factors. The results suggested that the durability of asphalt pavements is improved by using ENR.

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Section: Resultsmentioning

confidence: 99%

Investigating the Mechanical Properties and Durability of Asphalt Mixture Modified with Epoxidized Natural Rubber (ENR) under Short and Long-Term Aging Conditions

et al. 2022

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“…17 Some researchers used nanoclay to improve storage stability of polymer modified binders, 18 but others used it by itself as a modifier in asphalt binder. 2,19,20 Some of these studies showed that adding nanoclay not only improves the asphalt binder properties but also enhances the characteristics of asphalt mixture in different temperatures. 13 Tang et al studied the moisture susceptibility of polymer–nanocomposite asphalt mixture.…”

Section: Introductionmentioning

confidence: 99%

The effects of base binder and styrene–butadiene–styrene structure on rutting resistance of polymer–nanocomposite asphalt mixture

Bayekolaei

Naderi

Nejad

2017

Journal of Elastomers & Plastics

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In recent years, the use of nano materials for improving various mechanical and performance-related properties of polymer-modified asphalt binders has been growing rapidly. However, few researches investigated the effects of base binder and styrenebutadiene-styrene (SBS) structure on rutting resistance of polymer-nanocompositemodified asphalt mixtures. This study investigated the effect of polymer-nanocomposite modification, using two different penetration grade asphalt binders and two types of SBS, on rutting properties of asphalt mixtures. Rheological properties of modified binders, Marshall stability, resilient modulus, and rut depth in wheel-tracking tests were used to evaluate the rutting performance of the modified binders and mixtures. The results indicated that both base binder type and SBS structure had significant effect on rutting resistance of polymer-nanocomposite-modified asphalt mixtures.

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“…The problem facing designers of flexible road pavements is the need to fully characterize the complex thermorheological properties of asphalt mixes on the one hand while on the other hand also providing a realistic simulation of the trafficand climate-induced stresses to which pavement structures are exposed over their design lives. Since the mid 1990s efforts in pavement research have been focused on the setup and implementation of performance based tests (PBT) for bituminous materials on the basis of mechanical characteristics [13,9,16,26,20,3]. These methods are now implemented in European Standards and used for specifying the mix properties within an advanced type testing procedure required to meet customized quality standards for materials defined in tender documents as well as for mix design.…”

Section: Introductionmentioning

confidence: 99%

Combining performance based lab tests and finite element modeling to predict life-time of bituminous bound pavements

Hofko

2015

Construction and Building Materials

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Toward Performance-Based Specifications for Bitumen and Asphalt Mixtures.

Cited by 9 publications

References 0 publications

Investigating the Mechanical Properties and Durability of Asphalt Mixture Modified with Epoxidized Natural Rubber (ENR) under Short and Long-Term Aging Conditions

Investigating the Mechanical Properties and Durability of Asphalt Mixture Modified with Epoxidized Natural Rubber (ENR) under Short and Long-Term Aging Conditions

The effects of base binder and styrene–butadiene–styrene structure on rutting resistance of polymer–nanocomposite asphalt mixture

Combining performance based lab tests and finite element modeling to predict life-time of bituminous bound pavements

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