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Yi Zhang
School of Highway, Chang’an University, Xi’an 710064, China

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Journal article
Published: 17 April 2021 in Materials
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The sustainability of resources is presently a major global concern. Sustainable construction materials can be produced by applying biological waste to engineering. Eggshells, as biological waste, are usually dumped in landfills or discarded. This causes many environmental problems including malodor, noise pollution, and serious waste of resources. To solve these problems, this study combined eggshell waste with bitumen materials for bio-roads construction. This paper investigated the impact of biological waste eggshell powder on the high- and low-temperature characteristics of bitumen materials. Scanning electron microscopy (SEM) revealed the microstructure of eggshell powder. The interaction between eggshell powder and asphalt was analyzed using Fourier transform infrared spectroscopy (FT-IR). The high- and low-temperature characteristics were investigated using conventional performance tests, and dynamic shear rheometer (DSR) and bending beam rheometer (BBR) experiments. These results indicate that eggshell powder (1) has a rough and porous microstructure; (2) has no apparent chemical reaction with asphalt; and (3) improves the consistency, hardness, and high-temperature characteristics. However, it reduces the plastic deformation capacity of asphalt, and the low-temperature crack resistance of asphalt cannot be improved. The research demonstrated that the application of eggshell powder in asphalt is feasible and has long-term resource and environmental advantages.

ACS Style

Xuancang Wang; Guanyu Ji; Yi Zhang; Yuchen Guo; Jing Zhao. Research on High- and Low-Temperature Characteristics of Bitumen Blended with Waste Eggshell Powder. Materials 2021, 14, 2020 .

AMA Style

Xuancang Wang, Guanyu Ji, Yi Zhang, Yuchen Guo, Jing Zhao. Research on High- and Low-Temperature Characteristics of Bitumen Blended with Waste Eggshell Powder. Materials. 2021; 14 (8):2020.

Chicago/Turabian Style

Xuancang Wang; Guanyu Ji; Yi Zhang; Yuchen Guo; Jing Zhao. 2021. "Research on High- and Low-Temperature Characteristics of Bitumen Blended with Waste Eggshell Powder." Materials 14, no. 8: 2020.

Journal article
Published: 25 March 2021 in Construction and Building Materials
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Lignin, as a major waste from biofuel and paper industries, could be utilized as a modifier to enhance the relevant performance of bitumen. However, the effects of lignin on the thermodynamics properties and molecular structure of bitumen are rarely studied. Meanwhile, the potential modification mechanism of lignin modified bitumen is still unclear. Molecular dynamics (MD) simulation and laboratory experimental methods are combined to explore the influence of lignin on the thermodynamics characteristics, rheological properties as well as the molecular structure of bitumen. The lignin modified bitumen with different dosages of lignin (10, 20 and 30 wt%) were prepared. DSR results from a macroscale view reveal that lignin could significantly improve the modulus, elastic recovery and rutting resistance of bitumen, but it adversely affects the fatigue performance. Meanwhile, the MD simulation results from a microscale perspective show that lignin could increase the density, cohesive energy density, shear viscosity, modulus and adhesive strength of bitumen. However, the free volume, diffusion coefficient and self-healing ability of lignin modified bitumen are weakened with the increase of lignin dosage. The MD simulations results are consistent with the experimental data. Furthermore, the correlations between the microscale and macroscale properties of lignin modified bitumen indicate that the physical and rheological properties of bitumen both depend on the molecular structure dramatically. The findings of this research can provide insights for an in-depth understanding of the effect of lignin on bitumen.

ACS Style

Shisong Ren; Xueyan Liu; Yi Zhang; Peng Lin; Panos Apostolidis; Sandra Erkens; Mingliang Li; Jian Xu. Multi-scale characterization of lignin modified bitumen using experimental and molecular dynamics simulation methods. Construction and Building Materials 2021, 287, 123058 .

AMA Style

Shisong Ren, Xueyan Liu, Yi Zhang, Peng Lin, Panos Apostolidis, Sandra Erkens, Mingliang Li, Jian Xu. Multi-scale characterization of lignin modified bitumen using experimental and molecular dynamics simulation methods. Construction and Building Materials. 2021; 287 ():123058.

Chicago/Turabian Style

Shisong Ren; Xueyan Liu; Yi Zhang; Peng Lin; Panos Apostolidis; Sandra Erkens; Mingliang Li; Jian Xu. 2021. "Multi-scale characterization of lignin modified bitumen using experimental and molecular dynamics simulation methods." Construction and Building Materials 287, no. : 123058.

Journal article
Published: 25 May 2020 in Molecules
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Organosolv lignin, a natural polymer, has been used in this study as an oxidation inhibitor in bitumen. Particularly, the effect of oxidative aging on the chemical compositional changes and on the rheology of bituminous binders with organosolv lignin and the impact to inhibit oxidation in bitumen were evaluated. Firstly, after analyzing the microstructure and surface characteristics of utilized organosolv lignin, a high shear mixing procedure was followed to produce binders of different proportions of lignin in bitumen. Pressure aging vessel conditioning was applied to these binders to simulate in-field aging and a series of tests were performed. Fourier transform infrared spectroscopy was used to track the compositional changes of lignin–bitumen systems before and after aging respectively. The rheological changes due to oxidative aging in the different lignin–bitumen systems were studied by means of dynamic shear rheometer tests. Based on the spectroscopic laboratory analyses, certain proportions of organosolv lignin in bitumen have shown a potential oxidation retardation effect in bitumen since a reduction of carbonyl and sulfoxide compounds was observed. However, the addition of lignin reduced the fatigue life of bitumen and potentially led to an increase in brittle fracture sensitivity at low and medium temperatures. Nevertheless, lignin improved the rutting resistance at high temperatures. Overall, it can be concluded that organosolv lignin can suppress the oxidation of sulfur and carbon compounds in bitumen either by direct deceleration of oxidation reaction or interaction with compounds that otherwise are oxidizable, without seriously degrading the mechanical properties.

ACS Style

Yi Zhang; Xueyan Liu; Panos Apostolidis; Ruxin Jing; Sandra Erkens; Natascha Poeran; Athanasios Skarpas. Evaluation of Organosolv Lignin as an Oxidation Inhibitor in Bitumen. Molecules 2020, 25, 2455 .

AMA Style

Yi Zhang, Xueyan Liu, Panos Apostolidis, Ruxin Jing, Sandra Erkens, Natascha Poeran, Athanasios Skarpas. Evaluation of Organosolv Lignin as an Oxidation Inhibitor in Bitumen. Molecules. 2020; 25 (10):2455.

Chicago/Turabian Style

Yi Zhang; Xueyan Liu; Panos Apostolidis; Ruxin Jing; Sandra Erkens; Natascha Poeran; Athanasios Skarpas. 2020. "Evaluation of Organosolv Lignin as an Oxidation Inhibitor in Bitumen." Molecules 25, no. 10: 2455.

Journal article
Published: 10 May 2020 in Applied Sciences
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Lignin, as a bio-based waste, has been utilized in the asphalt industry due to various advantages. This study aimed to investigate the effects of two lignin products (lignin powder and lignin fiber) on the mechanical properties of asphalt mixtures. The raveling, rutting, thermal and fatigue cracking resistance, and moisture susceptibility of different asphalt mixtures were respectively evaluated by the Cantabro test, wheel loading tracking test, semicircular bending test, four-point beam bending test, and freezing-thaw cyclic test. Results show that asphalt mixture with lignin powder-modified asphalt improved the overall mechanical performance. However, lignin fiber showed contradictory effects on certain mechanical properties, i.e., improved rutting resistance and thermal cracking resistance of asphalt mixture, degraded abrasion resistance, fatigue performance, and moisture stability. Therefore, cautions need to be taken when incorporating lignin fiber into asphalt mixture.

ACS Style

Yi Zhang; Xuancang Wang; Guanyu Ji; Zhenyang Fan; Yuchen Guo; Wenze Gao; Lei Xin. Mechanical Performance Characterization of Lignin-Modified Asphalt Mixture. Applied Sciences 2020, 10, 3324 .

AMA Style

Yi Zhang, Xuancang Wang, Guanyu Ji, Zhenyang Fan, Yuchen Guo, Wenze Gao, Lei Xin. Mechanical Performance Characterization of Lignin-Modified Asphalt Mixture. Applied Sciences. 2020; 10 (9):3324.

Chicago/Turabian Style

Yi Zhang; Xuancang Wang; Guanyu Ji; Zhenyang Fan; Yuchen Guo; Wenze Gao; Lei Xin. 2020. "Mechanical Performance Characterization of Lignin-Modified Asphalt Mixture." Applied Sciences 10, no. 9: 3324.

Journal article
Published: 12 December 2019 in Materials
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As bitumen oxidizes, material stiffening and embrittlement occur, and bitumen eventually cracks. The use of anti-oxidants, such as lignin, could be used to delay oxidative aging and to extend the lifetime of asphalt pavements. In this study, the chemical and rheological effect of lignin on bitumen was evaluated by using a single dosage organsolv lignin (10 wt.% dosage). A pressure aging vessel (PAV) was used to simulate the long-term aging process after performing the standard short-term aging procedure, and the lignin-modified bituminous binders were characterized by an environmental scanning electron microscope (ESEM), Fourier-transform infrared (FTIR) spectroscopy, and a dynamic shear rheometer (DSR). From the ESEM results, the uniform microstructure was observed, indicating that the addition of lignin did not affect the worm structure of bitumen. Based on the FTIR test results, lignin-modified bitumen showed that a lower number of carbonyl and sulfoxide compounds were generated after aging than for neat bitumen. Based on the linear amplitude sweep (LAS) results, the addition of lignin slightly reduced the fatigue life of bitumen. From the frequency sweep results, it showed that lignin in bitumen acts as a modifier since the physical interaction between lignin and bitumen predominantly affects the material rheology. Overall, lignin could be a promising anti-oxidant due to its economic and environmental benefits.

ACS Style

Yi Zhang; Xueyan Liu; Panos Apostolidis; Wolfgang Gard; Martin Van De Ven; Sandra Erkens; Ruxin Jing. Chemical and Rheological Evaluation of Aged Lignin-Modified Bitumen. Materials 2019, 12, 4176 .

AMA Style

Yi Zhang, Xueyan Liu, Panos Apostolidis, Wolfgang Gard, Martin Van De Ven, Sandra Erkens, Ruxin Jing. Chemical and Rheological Evaluation of Aged Lignin-Modified Bitumen. Materials. 2019; 12 (24):4176.

Chicago/Turabian Style

Yi Zhang; Xueyan Liu; Panos Apostolidis; Wolfgang Gard; Martin Van De Ven; Sandra Erkens; Ruxin Jing. 2019. "Chemical and Rheological Evaluation of Aged Lignin-Modified Bitumen." Materials 12, no. 24: 4176.

Journal article
Published: 10 September 2019 in Applied Sciences
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Cement-containing mineral powder can effectively improve the moisture stability of an asphalt mixture; therefore, this study systematically summarizes the research status of cement–mineral fillers on the performance of an asphalt mixture and determines the limitations of related studies. In this study, long-term performance tests of styrene-butadiene-styrene- (SBS)-modified asphalt mixtures are designed and evaluated with different blending ratios of the cement–mineral powder under three aging conditions. Moreover, the effect of the cement–mineral composite filler on long-term performance of the asphalt mixture using different blending ratios is determined. Cement improves the high-temperature performance and water stability of asphalt mixtures, but only for certain aging conditions. Considering the regulations for the road performance of asphalt mixtures for three aging conditions, as well as long-term performance considerations, the results indicated that the mass ratio of Portland cement to mineral powder must not exceed 2:2. Low-temperature bending and splitting tensile tests confirmed that an excessive amount of cement filler will embrittle the modified asphalt mixture during long-term aging, thereby deteriorating the tensile properties. The mechanism by which the filler influences the performance of the asphalt mixture should be further studied from the perspective of microscopic and molecular dynamics.

ACS Style

Zhenyang Fan; Xuancang Wang; Zhuo Zhang; Yi Zhang. Effects of Cement–Mineral Filler on Asphalt Mixture Performance under Different Aging Procedures. Applied Sciences 2019, 9, 3785 .

AMA Style

Zhenyang Fan, Xuancang Wang, Zhuo Zhang, Yi Zhang. Effects of Cement–Mineral Filler on Asphalt Mixture Performance under Different Aging Procedures. Applied Sciences. 2019; 9 (18):3785.

Chicago/Turabian Style

Zhenyang Fan; Xuancang Wang; Zhuo Zhang; Yi Zhang. 2019. "Effects of Cement–Mineral Filler on Asphalt Mixture Performance under Different Aging Procedures." Applied Sciences 9, no. 18: 3785.

Journal article
Published: 04 March 2019 in Construction and Building Materials
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To meet the high temperature and anti-reveling properties required in open-graded friction course, high content polymer modified asphalt (HCPMA) is gradually widely used in China, but the rheological, chemical and aging characteristic is not clear yet. In this paper, HCPMA with different SBS content and different base asphalt are prepared, and Pressure Aging Vessel (PAV) aging was conducted to simulate the long-term aging condition. The chemical and rheological evaluation of HCPMA before and after aging were tracked with Fourier transform infrared, gel permeation chromatography test, dynamic shear oscillatory test, master curve and multiple stress creep and recovery test. The results show that firstly, the aging of HCPMA is combined with hardening of asphalt and degradation of Styrene–butadiene–styrene (SBS) polymer. Furthermore, the addition of high content of SBS polymer can reduce the formation of carbonyl, but the degradation rate of SBS polymer is not related to the content of SBS or the type of base asphalt. Besides, HCPMA with a higher SBS content will have better rheological properties, but in consideration of economy, 9% is optimum dosage. At last, HCPMA prepared with Esso asphalt as base binder exhibits better rheological properties than HCPMA prepared with SK asphalt. However, the rheology difference reduces with the increase of SBS content and after PAV aging.

ACS Style

Peng Lin; Chuanqi Yan; Weidong Huang; Yi Li; Lu Zhou; Naipeng Tang; Feipeng Xiao; Yi Zhang; Quan Lv. Rheological, chemical and aging characteristics of high content polymer modified asphalt. Construction and Building Materials 2019, 207, 616 -629.

AMA Style

Peng Lin, Chuanqi Yan, Weidong Huang, Yi Li, Lu Zhou, Naipeng Tang, Feipeng Xiao, Yi Zhang, Quan Lv. Rheological, chemical and aging characteristics of high content polymer modified asphalt. Construction and Building Materials. 2019; 207 ():616-629.

Chicago/Turabian Style

Peng Lin; Chuanqi Yan; Weidong Huang; Yi Li; Lu Zhou; Naipeng Tang; Feipeng Xiao; Yi Zhang; Quan Lv. 2019. "Rheological, chemical and aging characteristics of high content polymer modified asphalt." Construction and Building Materials 207, no. : 616-629.

Journal article
Published: 04 January 2019 in Materials
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Microwave heating is an encouraging heating technology for the maintenance, recycling, and deicing of asphalt pavement. To investigate the microwave heating properties of asphalt mixture, laboratory tests and numerical simulations were done and compared. Two types of Stone Mastic Asphalt (SMA) mixture samples (with basalt aggregates and steel slag aggregates) were heated using a microwave oven for different times. Numerical simulation models of microwave heating of asphalt mixture were developed with finite element software COMSOL Multiphysics. The main thermal and electromagnetic properties of asphalt mixture, served as the model input parameters, were measured through a series of laboratory tests. Both laboratory-measured and numerical simulated surface temperatures were recorded and analyzed. Results show that the replacement of basalt aggregates with steel slag aggregates can significantly increase the microwave heating efficiency of asphalt mixture. Numerical simulation results have a good correlation with laboratory test results. It is feasible to use the developed model coupling electromagnetic waves with heat transfer to simulate the microwave heating process of asphalt mixture.

ACS Style

HaoPeng Wang; Yue Zhang; Yi Zhang; Shuyin Feng; Guoyang Lu; Lintao Cao. Laboratory and Numerical Investigation of Microwave Heating Properties of Asphalt Mixture. Materials 2019, 12, 146 .

AMA Style

HaoPeng Wang, Yue Zhang, Yi Zhang, Shuyin Feng, Guoyang Lu, Lintao Cao. Laboratory and Numerical Investigation of Microwave Heating Properties of Asphalt Mixture. Materials. 2019; 12 (1):146.

Chicago/Turabian Style

HaoPeng Wang; Yue Zhang; Yi Zhang; Shuyin Feng; Guoyang Lu; Lintao Cao. 2019. "Laboratory and Numerical Investigation of Microwave Heating Properties of Asphalt Mixture." Materials 12, no. 1: 146.