Preparation and performance evaluation of swine manure bio-oil modified rubber asphalt binder

Wang, Hui; Jing, Yufei; Zhang, Jiupeng; Cao, Yuanbo; Lyu, Lei

doi:10.1016/j.conbuildmat.2021.123584

Cited by 39 publications

(12 citation statements)

References 32 publications

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“…The performance of a bitumen modified by a bio-oil is dependent on the source and preparation method of the bio-oil. Wang, Jing, Zhang, Cao, and Lyu made bio-oil from swine manure through a fast-pyrolysis process at 550 °C under a reaction time of 1 s. They reported that the swine manure bio-oil improved the workability of the bitumen; however, the bio-oil negatively affected the high-, low-, and midtemperature performance of bitumen. In contrast, Fini, Kalberer, and Shahbazi used a thermochemical liquefaction process to produce bio-oil from swine manure at 305 °C under 10.3 MPa pressure for a 80 min residence time.…”

Section: Challenges Gaps and Perspectivesmentioning

confidence: 99%

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

2023

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The global emphasis on sustainability and net zero carbon roads combined with the increased cost of crude oil has necessitated the application of new environmentally friendly alternatives to the bitumen used in asphalt by the pavement industry. Physical aging, chemical aging, and moisture damage are three important matters encountered in the pavement industry that are harmful for asphalt; bio-oils can decelerate the rates of physical aging and chemical aging in virgin bitumen, and bio-oils can substantially improve virgin bitumen’s resistance to moisture damage. Bio-oils can also restore properties in environmentally damaged asphalt up to a certain limit of aging. The main goal of this review is a comprehensive analysis of the literature about the potential of bio-oils produced from different biomass sources to influence the physical aging, chemical aging, and moisture damage of asphalt. Considering that bitumen’s physical aging is highly impacted by the bitumen’s wax content, this review also covers the effect of wax inherently present in bitumen or wax added to bitumen as a modifier. It is concluded that the chemical composition of a bio-oil has a significant impact on the bio-oil’s ability to protect or recover the bitumen’s original properties. Phenolic compounds found in bio-oils have antiaging effects while bio-oils’ acidic compounds may lead to moisture susceptibility.According to the literature, most bio-oils have positive effects only in a specific range of temperatures: low, intermediate, or high. Complete miscibility and dispersion of a bio-oil in the asphalt matrix also have a significant influence on making a bio-oil an effective modifier. Generally, bio-oils are promising as sustainable, carbon-neutral, cost-effective alternatives to replace or modify conventional bitumen in the pavement industry. This review has identified the following critical research gaps: (1) the lack of standard methods for evaluating and reporting the performance characteristics of each bio-oil in bitumen; (2) the lack of long-term field performance data on bio-oils to support comprehensive life-cycle assessments and life-cycle analyses; (3) high variation among bio-oils made from the same feedstock through different processing methods, leading to variation in performance characteristics; (4) the lack of accurate technoeconomic analysis on industrial bio-oils to facilitate entry of bio-oils into the asphalt market.

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Section: Challenges Gaps and Perspectivesmentioning

confidence: 99%

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

2023

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“…Incorporating bio-oil-activated rubber is also an effective way to improve the compatibility of waste rubber and asphalt [10]. Bio-oil also reduces the viscosity of RMA and improves its workability [14]. Segregation was alleviated due to the microwave pretreatment of bio-oil on crumb rubber, which facilitated the swelling and depolymerization of crumb rubber in melt asphalt [15].…”

Section: Introductionmentioning

confidence: 99%

Molecular Interaction Mechanism between Aromatic Oil and High-Content Waste-Rubber-Modified Asphalt

Yan,

Zhou,

Jiang

et al. 2023

Sustainability

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High-content waste-rubber-modified asphalt (HRMA) has high viscosity and poor storage stability. HRMA not only improves the properties of road asphalt, but also reduces the environmental pollution caused by waste tires. Enhancing the molecular interaction of waste rubber and asphalt is key to making full use of HRMA. In this paper, aromatic oil was used as the activator for waste rubber. The molecular interaction mechanism between aromatic oil and HRMA was investigated. The radial distribution function, diffusion coefficient, free volume, solubility parameter, and shear viscosity were calculated through molecular simulations. Storage stability, micromorphology, and adhesive force were measured via experiments. The adhesive force of HRMA−1 (4.9 nN) was lower than that of RMA (6.2 nN) and HRMA−2 (5.8 nN). The results show that aromatic oil can promote the dispersion of waste rubber, making the storage of asphalt systems stable. There exists a strong electrostatic force between rubber and asphaltenes and an intermolecular force between rubber and aromatic oil or aromatics, which makes the aromatic oil and aromatics of parcel rubber molecules and waste rubber highly soluble in asphalt. Molecular simulations confirmed the molecular interaction between rubber and aromatic oil, and aromatic oil was shown to reduce the viscosity of HRMA.

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“…Some biobased materials with good performance, economic and ecological benefits have been used to improve the performance of asphalt materials. Bio-oil extracted from animal and plant waste can improve the workability, fatigue resistance, and low-temperature cracking resistance of asphalt, but it may affect the viscosity and resistance to rutting of the asphalt material [24][25][26]. In addition, some plant fibers and animal bone meal have been studied and proven to enhance the high-temperature performance of asphalt.…”

Section: Introductionmentioning

confidence: 99%

Properties and Microcosmic Mechanism of Coral Powder Modified Asphalt in Offshore Islands and Reefs Construction

Chen

Fang

et al. 2023

Sustainability

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The application of waste coral fragments from natural weathering, harbor construction and channel excavation to infrastructure construction on offshore islands can help alleviate the problems of shortage of traditional materials, land use of waste materials, and long-distances transport. In order to promote the comprehensive application of coral materials in road engineering construction on offshore islands, and to develop road pavement materials with good service performances and economic and environmental benefits, this paper studies the base properties, high-temperature rheological properties, and microstructure of coral powder (CP) modified asphalt through indoor experiments. The base properties tests (penetration, softening point and ductility) showed that the incorporation of CP increased the stiffness and high-temperature stability of the asphalt, but decreased the ductility of the asphalt. The optimal dosing of CP in virgin asphalt (VA) and styrene-butadiene-styrene-modified asphalt (SA) is 12% and 15%, respectively. The results of viscosity and high-temperature rheology tests showed that the right amount of CP could improve the high-temperature rheological properties and resistance to permanent deformation of asphalt, but superfluous CP tends to have a negative effect. Microscopic test results show that in the recommended dosage, the combination effect of CP and asphalt is better. CP-modified asphalt is mainly based on physical modification.

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Preparation and performance evaluation of swine manure bio-oil modified rubber asphalt binder

Cited by 39 publications

References 32 publications

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

Molecular Interaction Mechanism between Aromatic Oil and High-Content Waste-Rubber-Modified Asphalt

Properties and Microcosmic Mechanism of Coral Powder Modified Asphalt in Offshore Islands and Reefs Construction

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