Investigating the Rheological Properties of Carbon Nanotubes/Polymer Composites Modified Asphalt

Liang, Ming; Su, Linping; Li, Peizhao; Jian, Shi; Yao, Zhenqiang; Zhang, Jizhe; Jiang, Hongguang; Luo, Wei

doi:10.3390/ma13184077

Cited by 15 publications

(5 citation statements)

References 26 publications

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“…The penetration decreased by 42% and 43.5% respectively, which has similar effects with the SBS modifier on the asphalt. Meanwhile, the highest influence of these modifiers could be on the viscosity of the asphalt [ 32 ]. PE-modified asphalt and PP-modified asphalt increased the viscosity of asphalt by 61.4% and 82.5% respectively, indicating good workability and consistency in road construction.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the Influence of Production Method, Plastic Content on the Basic Performance of Waste Plastic Modified Asphalt

Zhou

Sun

et al. 2022

Polymers

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The sustainable reuse of waste plastic as an alternative construction material has numerous environmental and economic advantages. New opportunities to recycle waste plastic in asphalt for road construction would mitigate landfill issues and significantly reduce global carbon emissions. With a clear aim to contribute to a more efficient reuse of waste plastic, this paper reutilized two types of waste plastic (polypropylene (PP) and polyethylene (PE)) as asphalt modifiers to improve the performance of asphalt pavement as well as to achieve the purpose of sustainable recycling waste plastic. Therefore, the optimal preparation parameters of plastic-modified asphalt were recommended by the orthogonal test. Then, the dispersion and modification mechanisms of plastic particles in plastic-modified asphalt were further studied by Fourier Transform Infrared Spectroscopy (FTIR) and Thermogravimetric Differential Scanning Calorimetry (TG-DSC). The results show that the asphalt containing PP and PE shows better overall performance at high temperatures compared with the base asphalt. Furthermore, PE-modified asphalt and PP-modified asphalt exhibited optimal properties when prepared at 3000 rpm for 30 min at 170 °C. Moreover, the results of the expansion mechanism show that the main reaction process of plastic asphalt is a physical change. Finally, PP-modified asphalt and PE-modified asphalt generally perform well and are suitable for high-temperature areas. Consequentially, the results of this research promote the recycling of waste plastic, ultimately advocating the recycling of waste materials and environmental protection of pavement construction.

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Section: Resultsmentioning

confidence: 99%

Analysis of the Influence of Production Method, Plastic Content on the Basic Performance of Waste Plastic Modified Asphalt

Zhou

Sun

et al. 2022

Polymers

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“…Due to the strong van der Waals force on the surface of CNTs, it can prevent the destruction of the asphalt micelle structure during the experiment and increase the viscosity. In addition, the temperature sensitivity of the sealants is relatively high in the temperature range of 135–160 °C, and the viscosity of the sealant varies obviously with temperature [ 41 ]. At the temperature of 160–200 °C, the increase of CNTs content had no significant effect on the viscosity of the sealants.…”

Section: Resultsmentioning

confidence: 99%

Investigation on Preparation and Properties of Crack Sealants Based on CNTs/SBS Composite-Modified Asphalt

et al. 2021

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Crack is the main distress of asphalt pavement. Sealant is one of the most commonly used crack repair materials, and its performance is the key to affect the service life of asphalt pavements. In order to find an efficient modifier and optimize the performances of crack sealants. In this paper, carbon nanotubes (CNTs) and styrene-butadiene-styrene (SBS) were used as modifiers to prepare CNTs/SBS composite-modified asphalt crack sealant. The properties of the sealant were tested to evaluate its suitability for crack repair, which included the viscosity, softening point, resilience recovery, cone penetration, flow value, penetration, aging resistance, and fatigue resistance. The results showed that the conventional properties of the sealants meet the requirements of the specification. In addition, after heating aging, the elastic recovery rate of the sealant containing more CNTs decreased only slightly. The sealant containing 1 wt% CNTs exhibited a higher viscosity, fatigue resistance, thermal aging resistance.

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“…For this reason, in recent times, the various multidimensional nanomaterials that have been applied for the improvement of different material property. As are those of nanometer size, making them promising additives for the reinforcement of materials with good performance in asphalt [5]. Modifications are essential to improve the efficiency of asphalt mixtures and, to some extent, solve problems of premature failure [6].…”

Section: Introductionmentioning

confidence: 99%

Resistance to Aging of Asphalt Modified with Multidimensional Nanomaterials: A literary Review

Pérez

Horna²,

Pastor³

2022

Period. Polytech. Civil Eng.

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Multidimensional nanomaterials, is a resource that has been formed over time becoming a revolutionary technology with a transcendent character providing the use in asphalt construction procedures, benefiting in the aspects of resistance in the environments to the field of civil engineering, in the same way it is a way in the advance for a better conservation of horizontal works with a favorable impact on the materials used, helping to preserve the care of the environment. In such a way that, in this article, a systematic review is reflected, around the exhaustive research in the databases such as Scopus and Science Direct, compiling a sum of 85 articles, which are indexed in journals from 2017 to 2021, carried out correspondingly on the different investigations of the management of multidimensional nanomaterials in asphalts. The objective of this literary review is to transmit various research by authors such as: the impact on the life cycle of asphalt, the performance it produces, the profitability and the advantage of the teaching that multidimensional nanomaterials have left, to later show results that show a growth in yields in asphalts through the application of multidimensional nanomaterials, So that it presents greater efficiency in the resistance to aging of the asphalt it is concluded that the nanomaterials reduce the environmental impact caused by the field of the constructions, improving the anti-aging capacity of the asphalt.

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Investigating the Rheological Properties of Carbon Nanotubes/Polymer Composites Modified Asphalt

Cited by 15 publications

References 26 publications

Analysis of the Influence of Production Method, Plastic Content on the Basic Performance of Waste Plastic Modified Asphalt

Analysis of the Influence of Production Method, Plastic Content on the Basic Performance of Waste Plastic Modified Asphalt

Investigation on Preparation and Properties of Crack Sealants Based on CNTs/SBS Composite-Modified Asphalt

Resistance to Aging of Asphalt Modified with Multidimensional Nanomaterials: A literary Review

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