Evaluation and Analysis of Variance of Storage Stability of Asphalt Binder Modified by Nanotitanium Dioxide

Zou, Xiaolong; Sha, Aimin; Ding, B.Z.; Tan, Yuqiao; Huang, Xiaonan

doi:10.1155/2017/6319697

Cited by 25 publications

(10 citation statements)

References 21 publications

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“…The storage stability test is used to analyze whether the modifier gets separated from the asphalt binder easily at high temperatures or not. 43,44 This test is performed to examine the homogeneity of the modified asphalt binder. Various kinds of modifiers used in the binder modification suffer from a major drawback of phase separation when stored at high storage temperatures.…”

Section: Experimental Workmentioning

confidence: 99%

Investigating the influence of carbon nanotube on the performance of asphalt binder

Shah

Mir

2021

Progress in Rubber, Plastics and Recycling Technology

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The purpose of this study aims at investigating the impact of multi-walled carbon nanotubes (MWCNT’s) on the properties of low viscosity grade asphalt binder. Asphalt binder with viscosity grade-10 is selected as the control binder and later it is modified with different percentages of MWCNT’s (0.5–2.5%). Penetration, softening point, ductility and rotational viscosity test were employed for evaluating the effect of MWCNT’s on basic physical properties of modified asphalt binder. Dynamic Shear Rheometer (DSR) is used for evaluating the rheological properties of the base and modified bitumen, for both aged and unaged bitumen. Based on the conventional and basic rheological tests, it was seen that the addition of MWCNT’s improved the high-temperature performance of modified bitumen. Multiple Stress Creep and Recovery (MSCR) test results revealed that the addition of MWCNT’s improved the creep and recovery of modified binders for both stress intensities (0.1 kPa and 3.2 kPa) which confirms that the modified binder is more rut resistant. Moreover, it was observed that there was a significant improvement in the aging resistance of the asphalt binder due to addition of MWCNTs. However low temperature performance of MWCNTs was not encouraging. Also, MWCNTs addition to asphalt binder was found to be stable under high-temperature storage condition. Overall, there is a significant amount of improvement using MWCNTs in the base asphalt binder.

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Section: Experimental Workmentioning

confidence: 99%

Investigating the influence of carbon nanotube on the performance of asphalt binder

Shah

Mir

2021

Progress in Rubber, Plastics and Recycling Technology

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“…The top and bottom sections were heated and poured into rings for a softening point test. For a stable storage sample, the difference in the softening point of the top and bottom sections should be less than 2.2 • C. Although the softening point test is the most common method to determine the storage stability, it is not highly accurate [16]. For accuracy, the performance grades of all of the three sections were also determined by using a Dynamic Shear Rheometer (DSR) to ensure the homogeneous mixing of the GNPs in the binder.…”

Section: Storage Stability Testmentioning

confidence: 99%

“…The performance grades of the top and bottom sections of the samples for all of the blends were also determined using a DSR to ensure the homogeneous dispersion of the GNPs in the asphalt binder, as the rheological characterization of the binder is affected by its composition [16]. The performance grades of the binders did not vary between the sections.…”

Section: Storage Stability Testmentioning

confidence: 99%

Experimental Investigation into the Structural and Functional Performance of Graphene Nano-Platelet (GNP)-Doped Asphalt

et al. 2019

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With the increase in the demand for bitumen, it has become essential for pavement engineers to ensure that construction of sustainable pavements occurs. For a complete analysis of the pavement, both its structural and functional performances are considered. In this study, a novel material (i.e., Graphene Nano-Platelets (GNPs)) has been used to enhance both of the types of pavements’ performances. Two percentages of GNPs (i.e., 2% and 4% by the weight of the binder) were used for the modification of asphalt binder in order to achieve the desired Performance Grade. GNPs were homogeneously dispersed in the asphalt binder, which was validated by Scanning Electron Microscope (SEM) images and a Hot Storage Stability Test. To analyze the structural performance of the GNPs-doped asphalt, its rheology, resistance to permanent deformation, resistance to moisture damage, and bitumen-aggregate adhesive bond strength were studied. For the analysis of the functional performance, the skid resistance and polishing effect were studied using a British Pendulum Skid Resistance Tester. The results showed that GNPs improved not only the rutting resistance of the pavement but also its durability. The high surface area of GNPs increases the pavement’s bonding strength and makes the asphalt binder stiffer. GNPs also provide nano-texture to the pavement, which enhances its skid resistance. Thus, we can recommend GNPs as an all-around modifier that could improve not only the structural performance but also the functional performance of asphalt pavements.

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“…To improve and enhance all aspects of the performance of the bio-asphalt, one or more modifiers are adopted [11][12][13]. More and more nanomaterials are being used in the field of pavement materials currently, such as nano-clay, nano-SiO 2 , nano-TiO 2 , and nano-ZnO to enhance the performance of the asphalt and the mixture [14][15][16]. Compared to other nanomaterials, graphene oxide (GO) used as a modifier for asphalt binders has attracted more and more attention recently.…”

Section: Introductionmentioning

confidence: 99%

Rheological Properties and Antiaging Performance of Graphene Oxide-Modified Bio-Asphalt

Qian¹,

Li²,

Ding

et al. 2022

Advances in Materials Science and Engineering

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To enhance the performance of bio-asphalt, an attempt was made to modify bio-asphalt using graphene oxide (GO). Two bio-asphalts were prepared and modified with different GO dosage levels of 0 to 0.08% to obtain GO-modified bio-asphalts (GOMBA). The two GOMBA were tested in the conventional properties (penetration, softening point, and ductility), high- and low-temperature rheological properties, and aging properties. The results showed that the penetration decreases and the ductility increases slightly with the increase in the dosage of GO, while the softening point increases stably to the maximum by 17.84%, and 15.99% for the two GOMBA, respectively. GO is beneficial to improve the high temperature performance and the recovery after the deformation of the GOMBA; on the contrary, it does not significantly affect the low temperature cracking resistance of those. The maximum residual penetration ratio is 10.58% and 8.84%, respectively, and the maximum residual ductility is 10.79% and 27.51%, respectively, for the two GOMBA after short-term aging. GO modification plays a role in the change of carbonyl index (CI) and sulfoxide index (SI) of the GOMBA before and after aging based on the FT-IR spectra, indicating that the GO can effectively improve the antiaging performance of bio-asphalt.

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Evaluation and Analysis of Variance of Storage Stability of Asphalt Binder Modified by Nanotitanium Dioxide

Cited by 25 publications

References 21 publications

Investigating the influence of carbon nanotube on the performance of asphalt binder

Investigating the influence of carbon nanotube on the performance of asphalt binder

Experimental Investigation into the Structural and Functional Performance of Graphene Nano-Platelet (GNP)-Doped Asphalt

Rheological Properties and Antiaging Performance of Graphene Oxide-Modified Bio-Asphalt

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