Experimental investigation of effect of Nano TiO2/SiO2 modified bitumen on the rutting and fatigue performance of asphalt mixtures containing steel slag aggregates

Shafabakhsh, Gholamali; Ani, Omid Jafari

doi:10.1016/j.conbuildmat.2015.08.083

Cited by 154 publications

(55 citation statements)

References 6 publications

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“…Refs. [36][37][38][39][40] also made similar studies on the effect of nano-silica on asphalt binder and mixtures. Table 1 summarizes the review of previous studies on the characterization of asphalt binder modified with nano-silica.…”

Section: Nanomaterials and Their Application As A Modifier In Asphaltmentioning

confidence: 87%

“…[32] Nano-silica Improves the self-healing of HMA [10] Nano-silica Improves marshal stability, resilient modulus, and fatigue life [29] Nano-silica Enhances antiaging property and rutting and fatigue cracking performance [30] Nano-silica Improves temperature stability, decreases temperature cracking resistance and reduces susceptibility to moisture damage [28] Nano-silica Enhances the complex shear modulus and improves the anti-rutting performance of asphalt mixture [34] Nanosilica Reduces the susceptibility to moisture damage and increases the strength of asphalt mixes [35] Nano-silica Improves the performance and durability of asphalt mixtures [36] Nano-silica Improve rutting and fatigue performance of asphalt binder [37] Nano-silica Decreases the interaction between asphalt molecules and increases free volumes in the configuration [38] Nano-silica Decreases the consistency, rate of water absorption and porosity of the roller compacted concrete pavement [39] Nano-silica Improves the rheological characteristics, toughness, and viscosity of bitumen [40] Nano-silica Reduces the creep strain deformation and increases the dynamic shear modulus…”

Section: Type Of Nanomaterials Effect On Asphalt Binder and Mixturesmentioning

confidence: 99%

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Life Cycle Assessment for the Production Phase of Nano-Silica-Modified Asphalt Mixtures

2019

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To combat the rutting effect and other distresses in asphalt concrete pavement, certain modifiers and additives have been developed to modify the asphalt mixture to improve its performance. Although few additives exist, nanomaterials have recently attracted significant attention from the pavement industry. Several experimental studies have shown that the use of nanomaterials to modify asphalt binder results in an improved oxidative aging property, increased resistance to the rutting effect, and improves the rheological properties of the asphalt mixture. However, despite the numerous benefits of using nanomaterials in asphalt binders and materials, there are various uncertainties regarding the environmental impacts of nano-modified asphalt mixtures (NMAM). Therefore, this study assessed a Nano-Silica-Modified Asphalt Mixtures in terms of materials production emissions through the Life Cycle Assessment methodology (LCA), and the results were compared to a conventional asphalt mixture to understand the impact contribution of nano-silica in asphalt mixtures. To be able to compare the relative significance of each impact category, the normalized score for each impact category was calculated using the impact scores and the normalization factors. The results showed that NMAM had a global warming potential of 7.44563 × 103 kg CO2-Eq per functional unit (FU) compared to 7.41900 × 103 kg CO2-Eq per functional unit of the conventional asphalt mixture. The application of LCA to NMAM has the potential to guide decision-makers on the selection of pavement modification additives to realize the benefits of using nanomaterials in pavements while avoiding potential environmental risks.

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Section: Nanomaterials and Their Application As A Modifier In Asphaltmentioning

confidence: 87%

Section: Type Of Nanomaterials Effect On Asphalt Binder and Mixturesmentioning

confidence: 99%

Life Cycle Assessment for the Production Phase of Nano-Silica-Modified Asphalt Mixtures

2019

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“…In the second stage, the creep rate was retained at a constant, and the permanent deformation increased linearly as the loading cycles increased. Lastly, in the final stage, the creep rate increased as the loading cycles increased, and deformation was accelerated and increasing prior to the occurrence of complete failure [30]. The results in Figure 7 revealed that the first and second stages were obtained, whereas the final stage did not occur in these tests.…”

Section: Uniaxial Compression Repeated Creep-recovery Testmentioning

confidence: 91%

Effects of Diatomite–Limestone Powder Ratio on Mechanical and Anti-Deformation Properties of Sustainable Sand Asphalt Composite

et al. 2018

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Diatomite has gained more and more interest as a new resource, since it has potential as a favorable alternative to mineral filler in the construction of asphalt pavement compared with ordinary limestone powder. In this paper, the mechanical and anti-deformation properties of sand asphalt composites with various proportions of diatomite were investigated by a uniaxial compression failure test, a uniaxial compression repeated creep test, and a low-temperature splitting test in order to determine the optimal replacement content of ordinary limestone powder. Five groups of sand asphalts with various volume ratios of diatomite to limestone (0:1, 0.25:0.75, 0.5:0.5, 0.75:0.25, and 1:0) were determined by the simplex-lattice mixture design (SLD) method. The results reveal that the compression strength, anti-deformation properties, and low-temperature crack resistance of sand asphalts are improved through the use of diatomite. Furthermore, the optimal ratio (0.327:0.673) of limestone to diatomite is determined by the SLD method, according to secant modulus and creep strain results.

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“…Nanotechnology has been utilized by researchers for many years, but its usage remains limited [3]. Researchers also have investigated the use of nano-sized particles in composites because the physical and chemical properties of materials can be improved, including bitumen [4,5]. The sizes of nano-sized particles range from 1 nm to 100 nm [3,4,6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nano Charcoal Ash Coconut Shell in Bitumen as Alternative Binder

2019

IJRTE

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Abstract: The effect of Nano charcoal ash (NCA) from coconut shell on the physical and chemical properties of bitumen as alternative binder was evaluated in this study. Six different Nano grades of charcoal ash were examined. The charcoal ash ground for the optimum grinding time had a median particle size of 148 nm. NCA dosage of 30% by weight of binder was used throughout the experiments. Nanoparticle size analysis and X-ray fluorescence were performed to determine the size and chemical properties of material. Dynamic shear rheometer, penetration, softening point, and penetration index were used to characterize the physical properties of NCA. Thirty hours of grinding time produced the optimum NCA, which could enhance the binder performance. Test results indicated that adding NCA from coconut shell to bitumen improved the binder stiffness up to 47% and significantly increased the softening point up to 12% compared with virgin binder.

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Experimental investigation of effect of Nano TiO2/SiO2 modified bitumen on the rutting and fatigue performance of asphalt mixtures containing steel slag aggregates

Cited by 154 publications

References 6 publications

Life Cycle Assessment for the Production Phase of Nano-Silica-Modified Asphalt Mixtures

Life Cycle Assessment for the Production Phase of Nano-Silica-Modified Asphalt Mixtures

Effects of Diatomite–Limestone Powder Ratio on Mechanical and Anti-Deformation Properties of Sustainable Sand Asphalt Composite

Effect of Nano Charcoal Ash Coconut Shell in Bitumen as Alternative Binder

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