Bamboo fiber has engineering properties and performance suitable as reinforcement for asphalt mixture

Liu, Kefei; Li, Teng; Wu, Chaofan; Jiang, Kang; Shi, Xianming

doi:10.1016/j.conbuildmat.2021.123240

Cited by 43 publications

(23 citation statements)

References 25 publications

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“…Waste rubber powder melts and expands to absorb part of the light components in the asphalt to produce surface adhesion, and the modified bamboo fiber increases the asphalt content and the proportion of “structural asphalt” in the asphalt mixture by adsorbing free asphalt. which has a good restriction and constraint on the spalling of fine material of asphalt mastic under the action of acid erosion, thereby slowing down the erosion rate of acid solution on the asphalt mixture [ 35 ]. Meanwhile, the randomly distributed fibers can effectively delay the development of cracks in asphalt mixtures and the addition of waste rubber powder can fill the void of asphalt mixture to give it good compactness, so as to effectively prevent acid rain from entering the mixture and causing erosion.…”

Section: Resultsmentioning

confidence: 99%

Study on the Durability of Acid Rain Erosion-Resistant Asphalt Mixtures

Wei

Chen

et al. 2022

Materials

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Acid erosion can accelerate the process of early damage of asphalt pavement and decrease the durability of asphalt pavement. However, there are limited research results for asphalt mixtures that can resist acid rain erosion. To systematically evaluate the impact and action law of acid rain erosion on the durability of asphalt mixtures, three gradation schemes were used: periodic dry–wet cycle immersion test, contact angle test and road performance test. The acid rain erosion resistance of epoxy asphalt mixture, SBS-modified asphalt mixture and 70# matrix asphalt mixture were tested from three aspects of anti-aging performance, freeze–thaw cycle performance and fatigue performance. The results show that the erosion of acid rain can significantly decrease the adhesion between asphalt and aggregate, and affects the road performance of the asphalt mixture. Acid rain erosion can significantly decrease the mechanical properties, adhesion and durability of asphalt mixtures. Epoxy asphalt has better physical properties, adhesion and acid rain erosion resistance than 70# matrix asphalt and SBS-modified asphalt. Epoxy asphalt has excellent adhesion due to its polar group, high cohesion and thermosetting resin with low shrinkage, which can effectively resist moisture erosion, spalling and temperature stress cracking, thereby effectively resisting the erosion of acid rain. Epoxy asphalt mixture has the strongest acid rain erosion resistance, which can be further enhanced when used together with waste rubber powder and modified bamboo fiber. On the whole, asphalt mixture with high-density structure and thicker asphalt film can effectively resist acid rain erosion. The durability of asphalt concrete (AC)-type gradation mixture and stone mastic asphalt (SMA)-type gradation mixture are equivalent, and both are superior to open-graded friction courses (OGFC)-type gradation mixture. The gradation of asphalt mixtures and the type of asphalt binder have great influence on their acid rain erosion resistance and durability. In order to realize the directional control of the acid rain erosion resistance and durability of different asphalt mixtures, a multi-parameter comprehensive assessment indicator system between the type and property of asphalt, the gradation of asphalt mixture, and the acid rain resistance and durability of the mixture need to be established in the future.

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Section: Resultsmentioning

confidence: 99%

Study on the Durability of Acid Rain Erosion-Resistant Asphalt Mixtures

Wei

Chen

et al. 2022

Materials

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“…Another major use of lignin is to directly add it to the asphalt mixture as an additive. It improved its pavement performance after adding different kinds of additives, such as lignin fibers, polyester fibers, bamboo fibers, rubber powders, and nano clay (Xu et al, 2010;Su et al, 2018;Xing et al, 2020;Liu et al, 2021). Generally, lignin improved the drainage performance, hightemperature stability, and low-temperature crack resistance of asphalt mixtures.…”

Section: Effect Of Lignin In Pavement Engineeringmentioning

confidence: 99%

Review on Applications of Lignin in Pavement Engineering: A Recent Survey

et al. 2022

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Lignin is the second-largest plant polymer on Earth after cellulose. About 98% of lignin produced in the papermaking and pulping industry is used for combustion heating or power generation. Less than 2% of lignin is used in more valuable fields, mainly in the formulation of dispersants, adhesives, and surfactants. Asphalt is one of the most important materials in pavement engineering. It is a dark brown complex mixture composed of hydrocarbons with different molecular weights and their non-metallic derivatives. Because the chemical structure of lignin is similar to that of asphalt, it is a carbon-based hydrocarbon material. More researchers studied the application of lignin in pavement engineering. In this paper, the structure, application, and extraction technology of lignin were summarized. This is a review article describing the different applications of lignin in pavement engineering and exploring the prospects of the application. There are three main types of pavement materials that can be used for lignin in pavement engineering, which are asphalt, asphalt mixture, and roadbed soil. In asphalt, lignin can be used as a modifier, extender, emulsifier, antioxidant, and coupling agent. In asphalt mixtures, lignin can be used as an additive. In road base soils, lignin can be used as a soil stabilizer. Furthermore, the article analyzed the application effects of lignin from the life cycle assessment. The conclusions suggest that lignin-modified asphalt exhibits more viscosity and hardness, and its high-temperature resistance and rutting resistance can be significantly improved compared with conventional asphalt. In addition, some lignin-modified asphalt binders exhibit reduced low-temperature crack resistance and fatigue resistance, which can be adjusted and selected according to the climate change in different regions. The performance of lignin as an asphalt mixture additive and asphalt extender has been proved to be feasible. Lignin can also produce good mechanical properties as well as environmental benefits as a soil stabilizer. In summary, lignin plays an important role in asphalt pavement and roadbed soil, and it is likely to be a development trend in the future due to its environmental friendliness and low cost. More research is needed to generalize the application of lignin in pavement engineering.

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“…In good compaction, there must be a good adhesion between the fiber and the asphalt binder [36]. Several researchers have proven that fiber-reinforced-asphalt mixture mainly achieved better performance properties than that of the control mixtures, in term of thermal cracking and resisting permanent deformation, and would occasionally perform better in fatigue [37][38][39]. The fiber-reinforced-asphalt mixture revealed the highest stress, and the mixer proved flow numbers 15 times better than the control mixture in the repeated load permanent deformation test [40,41].…”

Section: Waste Fibermentioning

confidence: 99%

Bituminous Pavement Reinforcement with Fiber: A Review

et al. 2021

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This paper attempts to display, analyze and discuss the literature affiliated to the previous research data on road surfacing in pavement engineering reinforcement. In this paper, a review of the background and present status of road surfacing is also provided for supportive explanation of the significance of fiber-reinforced asphalt pavement HMA and its role in providing effective and durable surfacing for heavy-trafficked roads. The paper attempts to clarify some of the terms and notions related to the discussions to give the readers the needed background, to be able to actively understand the experiments and discussions. Results from many studies confirm that fiber specifically enhances the optimum bitumen content in the design of the mixture and halts the bitumen leakage due to its asphalt absorbing susceptibility. Fiber modifies the visco-elastic response, susceptibility against moisture, increase resistance to rutting, as well as lowers the pavement fatigue cracking.

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Bamboo fiber has engineering properties and performance suitable as reinforcement for asphalt mixture

Cited by 43 publications

References 25 publications

Study on the Durability of Acid Rain Erosion-Resistant Asphalt Mixtures

Study on the Durability of Acid Rain Erosion-Resistant Asphalt Mixtures

Review on Applications of Lignin in Pavement Engineering: A Recent Survey

Bituminous Pavement Reinforcement with Fiber: A Review

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