Rheological Characteristics of Nano Silica Modified Asphalt Binder Material

Zghair, Hussein H.; Jony, Hassan H.; Hassan, Maan S.

doi:10.1109/iec47844.2019.8950636

Cited by 13 publications

(8 citation statements)

References 17 publications

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“…The relationship between the ductility values of the Nano alumina asphalt material and the Nano silica material contents are shown in Figure 4. It can be noted from the figure that the ductility value decreases with the increase in the percentage of nanomaterials, confirming that the outcome of previous research (Zghair et al, 2019). But for the Nano alumina adding of 7% to the binder, the ductility values started to increase in Nano Alumina content a remarkable rate which confirms the results of the previous studies (Ali et al, 2016& Ali et al, 2017.…”

Section: Resultssupporting

confidence: 89%

Impact of Nano Materials on the Properties of Asphalt Cement

Hussein

Khoshnaw

2021

EAJSE

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Traditional pavement materials are difficult to meet the realistic specifications of current and future highway pavement design requirements. Crude oil refineries with different sizes and efficiencies produce Asphalt cements (rheological and physical) which sometimes need modifications according to the pavement type, environment condition and site requirements. The interest of researchers in nanotechnology applications, particularly in the field of pavement materials, has increased over the last decade. In the present research Aluminum Oxide (Al2O3) and Silica Oxide (Si2O3) were used as Nano material modifiers to investigate their effects on Asphalt cement properties. Three percentages (3, 5, and 7%) by weight from both of them were mixed with asphalt type 40/50 penetration grade obtained from Lanas/Erbil refinery. Rheological and physical properties were investigated for all samples in the laboratory. Results showed that both Nano (silica and alumina) decreased the penetration value by (5) percent and increase the ductility value and softening point temperature. Furthermore, rotational viscosity and stiffness of the modified Asphalt cement found to be increasing gradually with adding more percentages of Nano materials, while temperature sensitivity decreases. Results also recommended that adding (5%) by weight for both Nano materials considered as optimum amount. Low productivity obtained at low and intermediate temperatures mixing Nanoparticles to the asphalt binder.

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Section: Resultssupporting

confidence: 89%

Impact of Nano Materials on the Properties of Asphalt Cement

Hussein

Khoshnaw

2021

EAJSE

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“…The bitumen binder was changed by Nano-silica (NS) by heating it to 160 degrees Celsius. Pour the Nanosilica powder into the asphalt binder in weighted amounts of 2, 4, and 6 percent and blend for 60 minutes with a shear mixer at 2000 rpm to achieve a homogenous composition [32].…”

Section: Modification Processmentioning

confidence: 99%

“…When temperature susceptibility decreases, the softening point temperature rises, which indicates that the temperature susceptibility has decreased. It is through the Asphaltene section that light asphalt volatiles is absorbed and transformed into resin material, which leads to the NS [32,33] attributable to these outcomes. Furthermore, because Nano silica particles have a higher stiffness than asphalt cement binder, the stiffness of NS modified asphalt binder is increased, it was determined that Nano-silica influenced the hardness and stiffness of asphalt binder material.…”

Section: Effect Of Ns On Asphaltmentioning

confidence: 99%

Using nano silica to enhance the performance of recycled asphalt mixtures

Rasheed¹,

Joni²,

Hasan³

2022

PEN

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Understanding how the physical properties of Nano-silica material affect the ultimate implementation of the asphalt binder is an essential study area that has been disregarded previously. The current investigation aims to determine whether or not it was possible to change the asphalt binder with Nano-silica (NS) depending on the qualities of the asphalt binder under consideration. Using nano-silica (2, 4, and 6 percentage by weight of asphalt), a penetration grade asphalt cement with 60/70 was developed. Nano silica and asphalt cement were first tested for their qualities. The NS modified asphalt binder was ready for use in the experiment after being heated to 160°C and mixed with a shear mixer at 2000 rpm for 60 minutes. The softening point temperature and penetration index of the NS modified asphalt binder, as well as the Brookfield rotational viscosity and ductility data, were also evaluated. Based on the rheological performance of the NS modified asphalt binder, increasing Nano silica content increases stiffness while decreasing temperature sensitivity. The addition of 4% Nano silica (NS) asphalt binder improved its basic properties and allowed it to be used in hot weather. By adding 4% NS to the hot recycle asphalt mixture, the Marshall stability is increased by 32.5%, the flow is reduced by 21.4%, the unit weight is maintained, and the amount of air voids in the mix, as well as other mix qualities, are kept at acceptable ranges. It'll also boost the ITS by 37.8%. In general, adding NS to asphalt mixtures improves their qualities.

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“…Zghair et al [15] examined the rheological properties of 2%, 4%, and 6% nano silica modified binders and expressed that the stiffness of the binder increased, and temperature sensitivity decreased with the escalating percentage of nano silica.…”

Section: Introductionmentioning

confidence: 99%

Research on the Rheological Properties of Asphalt Binder Modified by Fume Silica and Crumb Rubber Compound

Akpolat

Kök

Aydoğmuş

2022

Period. Polytech. Civil Eng.

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This study investigates the effect of using Fume Silica (Aerosol 300) alone and together with crumb rubber (CR) in bitumen modification on the traditional and rheological properties of the binder and compares it to the SBS modified binder. Using the aerosol additive in the binder at the rates of 0.5%, 1%, 1.5%, and 2% were determined as the most convenient ratio and CR+aerosol modified binders were prepared per this ratio. The binders were subjected to the softening point, viscosity, frequency sweep, bending beam rheometer (BBR), and Fourier Transform Infrared spectroscopy (FTIR) tests in the context of the study. Besides, the optimum conditions were determined according to the response functions by designing an experiment with statistical regression according to the Response surface methodology (RSM). The results indicate that the optimum aerosol ratio is 1.5%. With the use of 1.5% aerosol in 6% CR modification per bitumen weight, it was found that (1) the softening point increases and the temperature sensitivity decrease in comparison to other binders, (2) the consistency of the binder increases, (3) the complex modulus values increase and become more resistant to rutting, (4) the low-temperature parameters enhance by performing more flexible behavior, (5) there may be physical changes in the structure even though there is no chemical reaction in the binder with the use of CR and aerosol additives, and (6) the experimental data and theoretical data obtained from the RSM method are consistent as per the statistical analysis.

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Rheological Characteristics of Nano Silica Modified Asphalt Binder Material

Cited by 13 publications

References 17 publications

Impact of Nano Materials on the Properties of Asphalt Cement

Impact of Nano Materials on the Properties of Asphalt Cement

Using nano silica to enhance the performance of recycled asphalt mixtures

Research on the Rheological Properties of Asphalt Binder Modified by Fume Silica and Crumb Rubber Compound

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