Performance evaluation of petroleum bitumen binders and mixtures modified by natural rock asphalt from Xinjiang China

Zhong, Ke; Yang, Xu; Luo, Shan

doi:10.1016/j.conbuildmat.2017.07.182

Cited by 46 publications

(17 citation statements)

References 16 publications

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“…e lowtemperature performance was slightly weakened [11]. Li et al evaluated the potential impact of different types of rock asphalts on the performance of asphalt composites.…”

Section: Introductionmentioning

confidence: 99%

Influence of Buton Rock Asphalt on the Physical and Mechanical Properties of Asphalt Binder and Asphalt Mixture

Chen

Jin

et al. 2018

Advances in Materials Science and Engineering

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In order to study the effect of different rock asphalt contents on the physical and mechanical properties of an asphalt binder and asphalt mixture, the physical and mechanical tests and analysis were conducted. An on-site case was investigated to verify the effectiveness of rock asphalt-modified pavement. The results show that the activation treatment can effectively enhance the molecular polarity of Buton rock asphalt. The “wet process” was used to prepare the Buton rock asphalt-modified asphalt binder, and the high-temperature performance and aging resistance were significantly improved. The modified asphalt prepared by mixing 30% rock asphalt shows the optimum balance between service performance and segregation. The on-site full-scale application of the Buton rock asphalt-modified asphalt pavement showed the good workability and service performance. This research demonstrated the ability of rock asphalt improving asphalt pavement on multiscales. It is helpful for the broader application of rock asphalt in asphalt pavement.

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“…e lowtemperature performance was slightly weakened [11]. Li et al evaluated the potential impact of different types of rock asphalts on the performance of asphalt composites.…”

Section: Introductionmentioning

confidence: 99%

Influence of Buton Rock Asphalt on the Physical and Mechanical Properties of Asphalt Binder and Asphalt Mixture

Chen

Jin

et al. 2018

Advances in Materials Science and Engineering

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“…It was determined that the addition of RA improved the high temperature performance of petroleum bitumen binders and mixtures. With the addition of RA, the moisture damage resistance, tensile strength and fatigue performance of petroleum mixture were enhanced as well [16].…”

Section: Introductionmentioning

confidence: 97%

Determination of Resistance to Creep Permanent Deformation of Hot Mix Asphalts Prepared with Various Additives

et al. 2018

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In this study, the resistance of hot mix asphalts containing different additives to the creep permanent deformation was investigated by the dynamic creep test. Four different additives were used in the study. Styrene-butadiene-styrene (SBS), American Gilsonite (AG), and Iranian Gilsonite (IG) were used for modifying the bitumen. Additionally, the same mixtures were prepared by using 2% hydrated lime as filler. The samples were subjected to dynamic creep test at 50°C under 500 kPa stress level. As a result of the tests performed, it has been determined that all of the additives used in the study improve the resistance to the creep permanent deformation. It has also been determined that the use of bitumen additives is more effective than the use of lime. Furthermore, it has been determined that the most effective additive is IG while the least effective additive is SBS, and hydrated lime use is more effective compared to the mixtures prepared with a neat binder.

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“…It was reported that the moisture damage resistance, tensile strength and fatigue performance of petroleum mixture were enhanced as well with the addition of rock asphalt from Xinjiang, China. However, the low temperature performance was slightly sacrificed after the modification of rock asphalt [17].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Iraq Natural Asphalt on Mechanical Properties of Bituminous Hot Mixtures

2022

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The increasing rate of traffic every day requires the roads to be made more stable. In order to improve the low and high temperature properties of the bituminous mixtures forming the coating layer of the flexible pavements, the binder in the mixture is often modified with various polymers. The most commonly used polymer in the modification is styrenebutadiene-styrene (SBS). However, SBS, which is very successful in improving the mechanical properties of the mixtures, is expensive and has brought the search for cheaper alternative additives. In this context, natural asphalts (NA) which are not subjected to any processes are used as additive. In this study, natural asphalt obtained from Zaho region of Iraq was used in 20%, 35% and 50% of bitumen modification by weight. The mechanical properties of mixtures prepared with different amount of NA modified bitumen were compared with 4% SBS modified bituminous mixtures. As a result, NA modification significantly improved the properties of bituminous mixtures. In particular, above 35% NA, the mixtures exhibited a superior performance by significantly resisting the effect of repeated loads. It was found that an average of 17.3% NA modification exhibited similar behavior with 4% SBS modification and provided significant economic savings.

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Performance evaluation of petroleum bitumen binders and mixtures modified by natural rock asphalt from Xinjiang China

Cited by 46 publications

References 16 publications

Influence of Buton Rock Asphalt on the Physical and Mechanical Properties of Asphalt Binder and Asphalt Mixture

Influence of Buton Rock Asphalt on the Physical and Mechanical Properties of Asphalt Binder and Asphalt Mixture

Determination of Resistance to Creep Permanent Deformation of Hot Mix Asphalts Prepared with Various Additives

The Effects of Iraq Natural Asphalt on Mechanical Properties of Bituminous Hot Mixtures

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