RETRACTED: Experimental investigation of the influence of Nano TiO2 on rheological properties of binders and performance of stone matrix asphalt mixtures containing steel slag aggregate

Ameli, Alireza; Pakshir, Amir Hossein; Babagoli, Rezvan; Norouzi, Navid; Nasr, Danial; Davoudinezhad, Siamak

doi:10.1016/j.conbuildmat.2020.120750

Cited by 27 publications

(7 citation statements)

References 19 publications

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“…Except for steel slag, the specific gravities of the wastes listed in Table 3 are similar to that of CBA. Steel slag has a higher specific gravity of between 3.01 and 3.67 [44][45][46][47], although coconut waste and palm oil shells have high absorption values of between 13.8 and 25% because of their porous structure [48][49][50][51][52]. The Los Angeles abrasion for the wastes ranges between 11.29 and 25.3% [44,45,[53][54][55][56][57][58][59][60], which is lower than the 55% for CBA [24].…”

Section: Chemical Propertiesmentioning

confidence: 99%

“…Steel slag has a higher specific gravity of between 3.01 and 3.67 [44][45][46][47], although coconut waste and palm oil shells have high absorption values of between 13.8 and 25% because of their porous structure [48][49][50][51][52]. The Los Angeles abrasion for the wastes ranges between 11.29 and 25.3% [44,45,[53][54][55][56][57][58][59][60], which is lower than the 55% for CBA [24]. The lower Los Angeles abrasion values indicate that the materials are tougher and more resistant to abrasion than CBA.…”

Section: Chemical Propertiesmentioning

confidence: 99%

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A Review of the Utilization of Coal Bottom Ash (CBA) in the Construction Industry

et al. 2021

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One effective method to minimize the increasing cost in the construction industry is by using coal bottom ash waste as a substitute material. The high volume of coal bottom ash waste generated each year and the improper disposal methods have raised a grave pollution concern because of the harmful impact of the waste on the environment and human health. Recycling coal bottom ash is an effective way to reduce the problems associated with its disposal. This paper reviews the current physical and chemical and utilization of coal bottom ash as a substitute material in the construction industry. The main objective of this review is to highlight the potential of recycling bottom ash in the field of civil construction. This review encourages and promotes effective recycling of coal bottom ash and identifies the vast range of coal bottom ash applications in the construction industry.

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Section: Chemical Propertiesmentioning

confidence: 99%

Section: Chemical Propertiesmentioning

confidence: 99%

A Review of the Utilization of Coal Bottom Ash (CBA) in the Construction Industry

et al. 2021

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“…The literature reports the impacts of adding TiO 2 and ZnO nanoparticles to asphalt binders: nano-TiO 2 decreases the penetration grade and increases the softening point of binders [ 13 ], increases toughness [ 14 ], increases the rutting resistance [ 15 ], increases stiffness [ 4 ], and improves resistance to aging of asphalt binders [ 16 ]; nano-ZnO increases the softening point and the binder viscosity [ 17 ], decreases the penetration grade [ 3 ], increases the anti-aging ability [ 18 , 19 ], improves the shear resistance [ 20 ], and the dispersion of copolymer SBS in the asphalt [ 21 ] and decreases the acidity of the asphalt binder [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Rheological Behavior and the Development of Performance Equations of Asphalt Composites Produced with Titanium Dioxide and Zinc Oxide Nanoparticles

et al. 2023

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This research evaluated the rheological behavior of conventional asphalt binders modified with TiO2 and ZnO nanoparticles and proposed mathematical equations for performance prediction. First, composites were evaluated at high temperatures to investigate the Performance Grade (PG), non-recoverable creep compliance, and Aging Index (AI). Subsequently, the fatigue damage tolerance was determined at a temperature of 20 °C through the Linear Amplitude Sweep (LAS) test. At high temperatures, for both nanoparticles, stiffness gain was observed as the nanomaterial content increased, evidenced by the increase in the dynamic shear modulus. This resulted in an increase in the Performance Grade and reduction in non-recoverable creep compliance, leading to greater resistance to permanent deformations. Furthermore, it was found that nanoparticles were able to reduce the effects of oxidation of the asphalt matrix, corroborated by the reduction of the Aging Index (AI). Regarding the fatigue damage tolerance, for both nanoparticles, an increase in performance was observed at low deformation amplitudes and a decrease at high deformation amplitudes. Finally, the analysis of each rheological parameter allowed to define the mathematical equations capable of predicting the performance of conventional asphalt binders when modified with nano-TiO2 or nano-ZnO.

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“…Bhat and Mir [19] found that the addition of nano-Al 2 O 3 had a positive effect on the rutting and fatigue performance of styrenebutadiene-styrene-(SBS-) modified asphalt binders. Ameli et al [20] evaluated the effect of nano-TiO 2 on the performance behavior of bitumen and stone matrix asphalt specimens and claimed that the utilization of nano-TiO 2 caused the binder strain to decrease and led the rutting behavior of bitumen to increase. Simultaneously, rutting resistance increased by the addition of more percentages of nano-TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

A Compressive Review on High‐ and Low‐Temperature Performance of Asphalt Modified with Nanomodifier

Yang

Lin

et al. 2021

Advances in Materials Science and Engineering

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At present, rutting and cracking have become serious issues in asphalt pavement, especially in the areas of summer heat and winter cold. Nanomodifier has been widely used in recent years due to its unique properties in improving the characteristics of asphalt binders. To make better use of nanomodifier to solve the problem of rutting and cracking of pavement, a compressive review on the high- and low-temperature performance of nanomodified asphalt is performed. The results indicate that for high- and low-temperature performance of asphalt binder, the effectiveness of nanomodification is found to be strictly influenced by the combination of original asphalt type, nanomodifier type, nanomodifier dosage, nanoparticle size, and preparation of nanomodified asphalt, and the high-temperature antirutting performance and low-temperature crack resistance of final blends are various with the combination. Chemical composition, microstructure, dispersion, and compatibility of final blends were the possible reason causing the difference. The rational selection of the combination can improve the high-temperature rutting resistance and the low-temperature cracking resistance of asphalt binder. So far, there is a lack of systematic investigation in this regard. Therefore, it is very necessary to study systematically the original asphalt, nanomodifier, nanomodifier dosage, nanoparticle size, and preparation of nanomodified asphalt effect on the high and low performance of nanomodified asphalt, especially in the modification mechanism in the future.

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RETRACTED: Experimental investigation of the influence of Nano TiO2 on rheological properties of binders and performance of stone matrix asphalt mixtures containing steel slag aggregate

Cited by 27 publications

References 19 publications

A Review of the Utilization of Coal Bottom Ash (CBA) in the Construction Industry

A Review of the Utilization of Coal Bottom Ash (CBA) in the Construction Industry

Evaluation of the Rheological Behavior and the Development of Performance Equations of Asphalt Composites Produced with Titanium Dioxide and Zinc Oxide Nanoparticles

A Compressive Review on High‐ and Low‐Temperature Performance of Asphalt Modified with Nanomodifier

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