Investigating the performance-related properties of crumb rubber modified bitumen using rheology-based tests

Rochlani, Mrinali; Leischner, Sabine; Wareham, David G.; Caro, Silvia; Falla, Gustavo Canon; Wellner, Frohmut

doi:10.1080/10298436.2020.1776868

Cited by 17 publications

(7 citation statements)

References 29 publications

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“…The diameter of the parallel plate is 25 mm, and the thickness of the bitumen sample is 1.0 mm. The test temperature was set to 46 °C–82 °C, and the rotation frequency was 10 rad/s [ 24 ].…”

Section: Methodsmentioning

confidence: 99%

A Study on High and Low Temperature Rheological Properties and Oil Corrosion Resistance of Epoxy Resin/SBS Composite Modified Bitumen

Xue

Wang

2022

Polymers

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In order to investigate the high and low temperature rheological properties and fuel corrosion resistance of epoxy resin on SBS modified asphalt, epoxy resin/SBS composite modified asphalt (ER/SBS) was prepared by high-speed shear. Moreover, composite modified bitumen with different proportions were designed based on the uniform design method and the basic performance index test was performed. The optimal composite mixing ratio of the ER and SBS modifier in composite modified asphalt (2.3% and 3.8%, respectively) was determined. Temperature scanning and a multiple stress creep test (MSCR) on ER/SBS composite modified asphalt with different ER content before and after oil corrosion was carried out using a dynamic shear rheometer (DSR). In addition, the high temperature rheological properties of different ER contents and composite modified asphalt after oil corrosion were evaluated by combing DSR measurements with the test data. The creep stiffness (S) and creep rate (m) indexes were obtained by a bending rheometer (BBR), and the effect of ER on the low-temperature rheological properties of SBS modified bitumen was investigated. The influence of the modifier incorporation on the micromorphology of asphalt and the change of micromorphology of asphalt after oil corrosion were analyzed by fluorescence microscopy. The test results show that the incorporation of 2.3% ER and 3.8% SBS can effectively improve the high temperature performance of SBS modified asphalt under the premise of cost saving. Moreover, the composite modified asphalt doped with ER can effectively improve the resistance of SBS modified asphalt to fuel corrosion at high temperatures, and the greatest improvement in the oil corrosion resistance of composite modified asphalt is observed at the ER content of 2.3%.

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Section: Methodsmentioning

confidence: 99%

A Study on High and Low Temperature Rheological Properties and Oil Corrosion Resistance of Epoxy Resin/SBS Composite Modified Bitumen

Xue

Wang

2022

Polymers

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“…Amplitude sweep test is used to establish the linear viscoelastic limit of the bitumen. The linear viscoelastic limit is defined as the strain percentage (%) when the complex shear modulus reduces to 95% of its starting value [19]. Preliminary observation on the amplitude sweep test indicates that the strain limit increases with an increase in temperature [20].…”

Section: Rheological Properties Amplitude Sweeps Test Resultsmentioning

confidence: 99%

A Comparative Study on the Physical and Rheological Properties of 60/70 and 80/100 Penetration Grade Bitumen in Malaysia

Santhanasamy¹,

Sutanto²

2023

JMechE

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The engineering properties of a bitumen plays vital role in determining the suitability of the bitumen usage for a pavement structure. Presently, bituminous pavements in Malaysia are constantly subjected to high-speed loading of vehicles as well as increased pavement temperature due to extreme solar heat which causes rutting and fatigue failure issues. In this research, the 60/70 and 80/100 penetration grade bitumen were subjected to both physical and rheological testing. Physical testing was used to determine the softening point, ductility, penetration and penetration index value whereas rheological testing chiefly determined the engineering properties of the bitumen such as complex modulus and phase angle which interprets the stiffness and viscoelastic behavior. Physical testing results indicate that the 60/70 penetration grade bitumen possesses lower penetration value, higher softening point, adequate ductility and higher penetration index value compared to the 80/100 penetration grade bitumen. Besides, rheological results show that the complex modulus and rutting factor of 60/70 bitumen indicates good stiffness towards temperature rise compared to the 80/100 penetration grade bitumen, thus, posing better resistance towards permanent deformation. Additionally, the 60/70 penetration grade bitumen generally possesses better elasticity compared to the 80/100 penetration grade bitumen which is observed through the phase angle determination.

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“…The obtained shear modulus G* and phase angle δ were plotted in the black diagram space [36]. The storage modulus G' and the loss modulus G'' were analyzed through the Cole-Cole diagram [37].…”

Section: Rheological Propertiesmentioning

confidence: 99%

Verifying the Mechanical Performance of Cold and Hot Asphalt Mastics Containing Jet Grouting Waste as a Filler

et al. 2021

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In the road construction sector, the CO2 emissions that affect global warming are, in most cases, from the asphalt mixtures production activities that are carried out at high temperature (above 160 °C). The research here presented aims to investigate the physical-mechanical properties of asphalt mastics made up using jet grouting waste (JW) as a filler produced through both cold (40–50 °C) and hot mixing process. The first step focused primarily on examining the effects of optimal blending time and curing time of the mastics. The second step focused on the investigation of the rheological properties using a dynamic shear rheometer and carrying out a frequency sweep test at temperatures ranging from 0 to 50 °C with increments of 10 °C, and a multiple stress creep and recovery (MSCR) test under 0.1 and 3.2 kPa load levels at temperatures of 40 and 50 °C. Four cold asphalt mastic solutions were analyzed and then compared to three hot traditional ones, keeping constant, on the one hand, the binder weight and filler over binder weight ratio (0.5), and, on the other hand, changing the type and amount of filler. The compositions of the hot and cold asphalt mastics were as follows: (a) 33% limestone filler (LF) plus 67% bitumen (concerning the cold mixing process, the bitumen content refers to the amount of bitumen into the bitumen emulsion), (b) 33% JW plus 67% bitumen, (c) 16.5% LF plus 16.5% JW and 67% bitumen. The fourth solution designed only for cold asphalt mastic was made up of 33% Portland cement (PC) plus 67% bitumen (referring to the amount of bitumen in the bitumen emulsion). The main findings showed that the optimal performance was achieved at high test temperature by cold and hot asphalt mastics made up adding LF and JW filler, which showed a pronounced elastic behavior. Moreover, the cold asphalt mastic solution made up of LF and JW filler showed better performance than the mastic made up using PC, reaching over 40% increase of the shear modulus and 30% lower non-recoverable creep compliance values at all test temperatures.

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Investigating the performance-related properties of crumb rubber modified bitumen using rheology-based tests

Cited by 17 publications

References 29 publications

A Study on High and Low Temperature Rheological Properties and Oil Corrosion Resistance of Epoxy Resin/SBS Composite Modified Bitumen

A Study on High and Low Temperature Rheological Properties and Oil Corrosion Resistance of Epoxy Resin/SBS Composite Modified Bitumen

A Comparative Study on the Physical and Rheological Properties of 60/70 and 80/100 Penetration Grade Bitumen in Malaysia

Verifying the Mechanical Performance of Cold and Hot Asphalt Mastics Containing Jet Grouting Waste as a Filler

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