Application of nano silica particles to improve high-temperature rheological performance of tyre pyrolysis oil-modified bitumen

Al-Sabaeei, Abdulnaser M.; Napiah, Madzlan; Sutanto, Muslich Hartadi; Habib, Noor Zainab; Bala, Nura; Kumalasari, Intan; Ghaleb, Aiban Abdulhakim Saeed

doi:10.1080/14680629.2021.1945483

Cited by 7 publications

(6 citation statements)

References 38 publications

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“…PMN0.4 and PMN0.5 show nearly identical results with small shifting at log reduced frequency of more than −2. This finding could be due to the aggregation of CNFs at the high content level which is consistent with the results obtained from the literature for the application of nanomaterials as a modifier for asphalt binders [ 3 , 27 ]. Similar behaviour of CNFs at the high content level was also noticed in this study for viscosity and adhesion tests results.…”

Section: Resultssupporting

confidence: 91%

“…CNFs and CNFs/LENR composite binders were prepared at 160 °C with 4000 rpm for two hours. These mixing parameters are the most commonly used in the literature for modifying asphalt binders with nanomaterials [ 3 ]. Content of LENR was chosen based on the previous studies of using solid epoxidized natural rubber (ENR) as a modifier in asphalt binders [ 19 , 20 , 21 , 34 , 35 ].…”

Section: Methodsmentioning

confidence: 99%

“…Millions of metric tons of asphalt materials are produced worldwide annually and there is a continued increase in global demand [ 2 ]. However, asphalt has limited strength and elasticity and can be lacking in performance and can lead to exposing various distresses such as rutting, fatigue, moisture damage, and low-temperature cracks when subject to extreme traffic loading and/or environmental changes [ 3 ]. Therefore, pavement industries and researchers are interested in the modification of asphalt using various polymers to improve its performance for wide range of pavement situations.…”

Section: Introductionmentioning

confidence: 99%

“…Crumb rubber (CR) is another form of the common polymers that are used for asphalt modification due to its chemical interaction in bitumen matrix. CR-modified asphalt binders and mixtures are used at different places around the world to address quality problems such as permanent deformation distresses [ 3 ]. It was also claimed that CR has the ability to improve the fatigue and aging resistance and durability of asphalt binders and mixtures due to the improvement of binder stiffness, ductility, and film thickness of rubberized binders compared to base asphalt [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…The use of nanomaterials is one of the most common method to improve the compatibility of asphalt binders with the polymers [ 3 , 24 ]. Overall, it can be said that researchers have focused on nanotechnology as an additive in asphalt binders for its significant improvement of the characteristics and performance of asphalt pavement [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Carbon Nanofibers on Physical, Adhesion and Rheological Properties of Liquid Epoxidized Natural Rubber Modified Asphalt

et al. 2022

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This study aimed to evaluate the effects of carbon nanofibers (CNFs) on the performance of liquid epoxidized natural rubber (LENR)-modified asphalt. The physical, adhesion and rheological properties were determined by several tests such as penetration, elastic recovery, ring and ball softening point, Brookfield rotational viscometer, AFM and dynamic shear rheometer. LENR was used at concentrations of 3, 6, and 9%, while CNFs were used at contents of 0.3, 0.4, and 0.5% by weight of asphalt. Conventional test results showed that the increases in LENR and LENR/CNFs composite contents in binder leads to an increase in the hardness and consistency and a reduction in the temperature susceptibility of base asphalt. Adhesion results revealed that the addition of CNFs significantly increases the adhesion and bonding properties of base and rubberized binders. Rheological properties analysis exhibited that LENR improved the viscoelastic properties and permanent deformation resistance of asphalt at different temperatures and frequencies. On the other hand, it was found that the addition of CNFs significantly improves the stiffness, elasticity, and hardness of LENR-modified binders. The 6% LENR and 0.4% CNFs were found to be the optimum to enhance the physical, adhesion, and rheological properties of asphalt in this study. Thus, it can be stated that the addition of CNFs is promising to improve the performance of rubberized binders for high temperature applications.

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Section: Resultssupporting

confidence: 91%