Study on Design and Pavement Performance of Rice Straw Fiber Asphalt Mixture Based on Response Surface Methodology

Cheng, Peifeng; Wang, Cong; Zhang, Kaiyuan; Wu, Zi-tao

doi:10.1007/s42947-023-00280-4

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…The findings indicated that the addition of bagasse fiber improved the high-temperature and fatigue properties of the asphalt mixture and the stiffness and crack resistance at medium temperatures. Cheng et al [23] mixed stalk fiber into asphalt mixture and found that when the fiber content was 4% and the fiber length was 9 mm, the high-temperature and water stability values of the asphalt mixture were the best. In summary, the incorporation of plant fiber can adsorb and stabilize asphalt and enhance the high-temperature and mechanical properties of asphalt mixture.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Performance of Modified Corn Stalk Fiber AC-13 Asphalt Mixture

Wang,

Qu,

Tang

et al. 2024

Coatings

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As an agricultural waste, a large amount of corn stalk will cause environmental pollution. In order to realize the resource utilization of waste and meet the strict requirements of modern traffic on pavement strength and durability, it was modified and applied to an AC-13 asphalt mixture to study its influence on the road performance of asphalt mixture and its mechanism. The road performances of modified corn stalk fiber, lignin fiber, and ordinary asphalt mixtures were evaluated via the wheel tracking test, low-temperature bending test, water immersion Marshall test, freeze–thaw splitting test, and fatigue test. Based on the results of three-point bending fatigue test, the viscoelastic parameters and indexes of the fiber asphalt mixture were obtained by fitting the loading specimen and deflection data with the Burgers constitutive model, and the creep strain response was analyzed by applying dynamic load, so as to explore the relationship between the viscoelastic characteristics and creep behavior of modified corn stalk fiber and AC-13 mixture. The long-term high-temperature performance test of the asphalt mixture with the best fiber content was carried out by using the long-term pavement intelligent monitoring equipment independently developed by the group of investigators. According to the findings, the ideal fiber contents for modified corn and lignin in asphalt mixture are 0.2% and 0.3%, respectively. Among them, the modified corn stalk fiber with a 0.2% content has the best effect on road performance, viscoelastic performance, and the asphalt mixture’s creep behavior under dynamic load. Compared with the 0.3% lignin fiber asphalt mixture, its dynamic stability, bending stiffness modulus, immersion residual stability, freeze–thaw splitting strength ratio, and loading times at failure increased by 19.9%, 18.28%, 4.19%, 8.6%, and 9.15%, respectively. Compared with ordinary asphalt mixture, it increased by 47.0%, 28.72%, 7.65%, 15%, and 75.81%, respectively. Moreover, when modified corn stalk fiber is added at 0.2%, the viscoelastic delay time of asphalt mixture is the longest, the strain peak value and rut depth are at a minimum, and the viscoelastic properties, creep properties, and long-term high-temperature properties are the best.

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Section: Introductionmentioning

confidence: 99%

Investigation on the Performance of Modified Corn Stalk Fiber AC-13 Asphalt Mixture

Wang,

Qu,

Tang

et al. 2024

Coatings

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“…Facing the background of the global urban low-carbon environment and the development of the life cycle management concept, the carbon emissions generated by vehicles during the operation period of asphalt pavement cannot be ignored. [2] Road construction is crucial to accelerating the process of poverty alleviation in urban and rural economies. With the implementation of modernization and urbanization, the global road mileage has extended overwhelmingly in recent decades, and over 25 million kilometers of new roads have been estimated to be paved in the following 30 years.…”

Section: Introductionmentioning

confidence: 99%

Carbon Footprint Detection of Asphalt Pavements

ÖNER,

YABANERİ

2023

Usak University Journal of Engineering Sciences

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One of the biggest causes of global warming is carbon dioxide emissions. Carbon dioxide emissions arise as a result of people's daily activities. Determining the causes and amounts of these emissions is extremely important for the world we live in. Within the scope of this study, the carbon emission value that occurs during the construction of a 1 km asphalt road was calculated. The data used during the calculations are the data obtained as a result of observation for 18 months. The data obtained was calculated by the Tier 1 method recommended by the IPCC. As a result of the calculations, 210 tons of CO2 emissions were determined during the construction of the 1 km asphalt pavement road. This figure is approximately 32 times higher than the amount of CO2 that a person releases into the nature in a year as a result of his vital activities.

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