Preparation Method of Corn Stalk Fiber Material and Its Performance Investigation in Asphalt Concrete

Tan, Yiqiu; Chen, Zhiguo; Yi, Junyan; Feng, De‐Cheng

doi:10.3390/su11154050

Cited by 24 publications

(16 citation statements)

References 19 publications

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“…In recent years, the extraction of natural fibers from corn stalks and their applications in the construction industry, composite material industry and other fields have been carried out. Boufi et al produced cellulose nanofibers from cornstalk by a conventional high-speed blender [4], Chen et al carried out a study on the performance investigation of cornstalk fibrous materials in asphalt concrete [5], and Vo et al explored the correlation between genotype biochemical characteristics and mechanical properties of cornstalk-polyethylene composites [6]. However, these studies have carried out research on the properties of cornstalks fiber from a macroscopic perspective, and the research on the microscopic scale i elatively weak.…”

Section: Introductionmentioning

confidence: 99%

Study on Macrostructure and Fourier Transform Infrared Spectroscopy of Cornstalk

Jiang

Yang

et al. 2022

Advances in Transdisciplinary Engineering

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As a biological by-product, cornstalk will pose a huge threat to the development of sustainable agriculture and environmental protection if it is not fully utilized. In this study, the macrostructure was characterized by optical camera and the chemical composition of cornstalk rind and cornstalk pith was characterized by Fourier transform infrared spectroscopy (FTIR). The test results show that the cornstalk was divided into rind and pith macroscopically, the cornstalk is smooth outside, and the pith is a sponge-like structure, the fiber structure evenly distributed on the pith. FTIR analysis showed that the cornstalk was presumed to be aliphatic compounds containing C-H chains and rich in fatty acids and/or ketones, and the main components include cellulose and lignin. The results of this study provide new inspiration and reference for the post-processing of cornstalks.

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Section: Introductionmentioning

confidence: 99%

Study on Macrostructure and Fourier Transform Infrared Spectroscopy of Cornstalk

Jiang

Yang

et al. 2022

Advances in Transdisciplinary Engineering

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“…Although plenty of studies have demonstrated the feasibility of utilizing lignin as a bitumen modifier, the application of the Kraft lignin (KL) and the corn stalk lignin (CL) as bitumen modifier are quite limited. Both KL (25 million tons/year) and CL (250 million tons/year) have abundant source from paper producing industries and agricultural productions [ 20 , 24 ], respectively. To date, the performance of lignin modified bituminous binder and mixture have still not been comprehensively investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of Lignin Modifier on Engineering Performance of Bituminous Binder and Mixture

Wang

Guo

et al. 2021

Polymers

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Lignin accounts for approximately 30% of the weight of herbaceous biomass. Utilizing lignin in asphalt pavement industry could enhance the performance of pavement while balancing the construction cost. This study aims to evaluate the feasibility of utilizing lignin as a bitumen performance improver. For this purpose, lignin derived from aspen wood chips (labeled as KL) and corn stalk residues (labeled as CL) were selected to prepare the lignin modified bituminous binder. The properties of the lignin modified binder were investigated through rheological, mechanical and chemical tests. The multiple stress creep recovery (MSCR) test results indicated that adding lignin decreased the Jnr of based binder by a range of 8% to 23% depending on the stress and lignin type. Lignin showed a positive effect on the low temperature performance of asphalt binder, because at −18 °C, KL and CL were able to reduce the stiffness of base binder from 441 MPa to 369 MPa and 378 MPa, respectively. However, lignin was found to deteriorate the fatigue life and workability of base binder up to 30% and 126%. With bituminous mixture, application of lignin modifiers improved the Marshall Stability and moisture resistance of base mixture up to 21% and 13%, respectively. Although, adding lignin modifiers decreased the molecular weight of asphalt binder according to the gel permeation chromatography (GPC) test results. The Fourier-transform infrared spectroscopy (FTIR) test results did not report detectable changes in functional group of based binder.

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“…As more attention has been drawn on sustainable development, concern of the environmental problem induced by the abundant discarded corn stalks (CS) produced from agricultural industry is growing rapidly, which is more severe in China because of its high annual output of corn stalks (about 250 million tons per year) and poor efficiency of waste utilization [ 1 ]. Traditional treatment of corn stalks is combusting them directly as a kind of fuel, whose energy efficiency is low and consequently causes large amounts of CO, CO 2 and NO 2 emissions leading to increase in diseases [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…On the contrary, utilizing hydrochar as binder modifiers instead of solid fuel seems more reasonable. As proof, Chen et al made worthful achievement by exploring an innovative way of converting corn stalks to fiber material [ 1 ] and performance evaluation of asphalt modified by corn stalk fiber [ 21 ]. What is more, Bao et al investigated the chemical composition and rheological properties of bio-asphalt, the residue from corn waste processed through acidification and polymerization [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

“…There are several studies investigating the potential of applying ashes from biomass combustion as aggregate fillers for asphalt mixtures [16][17][18], antioxidant [19] or performance enhancer [20] for asphalt binder. Specifically, Chen et al invented a preparation method of corn stalk fiber involving sodium hydroxide [1] and evaluated the effect on binder [21].…”

Section: Introductionmentioning

confidence: 99%

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Greener Solution to Waste Corn Stalks and Shortage of Asphalt Resource: Hydrochar Produced by Hydrothermal Carbonization as a Novel Performance Enhancer for Asphalt Binder

2021

Materials

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Utilization of waste corn stalks (CS) has seized extensive attention due to high annual output and hazardous impact of piling aside or direct combustion on environment. However, previously there has been a lot of emphasis on improvement of its energy efficiency as solid fuel while limited investigations are available which explore the possibility of applying corn stalks as performance enhancer in asphalt binder. The purpose of this study is to examine the potential of employing hydrochar as modifiers in asphalt binder by a series of experimental tests. In this study, two hydrochar were produced from corn stalks by a novel process called hydrothermal carbonization at a different reaction temperature. The two hydrochar and their responding hydrochar-modified asphalt (HCMA) were tested by chemical and rheological tests. Chemical analysis detected the interaction between hydrochar and binder factions, resulting in poor compatibility but satisfying anti-aging property. Even though hydrochar increased the viscosity of bitumen, implying worse workability, and caused poor storage stability, ameliorated performance of asphalt binder at high temperature by incorporating hydrochar was verified by various criteria such as higher performance grade (PG) failure temperature and lower non-recoverable creep compliance (Jnr). Moreover, higher reaction temperature makes hydrochar’s particles smaller and more homogeneous, which results in slightly lower enhanced high temperature performance, more satisfying workability, better storage stability, and greater anti-aging effect of hydrochar-modified asphalt. Eventually, this study provided a promising win-win solution to environment problems concerning corn stalk treatment and shortage of asphalt binder. Further exploration of methods to improve HCMA’s storage stability, real-scale corroboration on trial section and life cycle assessment of asphalt pavement containing hydrochar modifiers will be followed in the future.

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Preparation Method of Corn Stalk Fiber Material and Its Performance Investigation in Asphalt Concrete

Cited by 24 publications

References 19 publications

Study on Macrostructure and Fourier Transform Infrared Spectroscopy of Cornstalk

Study on Macrostructure and Fourier Transform Infrared Spectroscopy of Cornstalk

Effect of Lignin Modifier on Engineering Performance of Bituminous Binder and Mixture

Greener Solution to Waste Corn Stalks and Shortage of Asphalt Resource: Hydrochar Produced by Hydrothermal Carbonization as a Novel Performance Enhancer for Asphalt Binder

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