Bamboo Fiber Modified Asphalt Mixture Proportion Design and Road Performances Based on Response Surface Method

Li, Haibin; Sun, Jianmei; Wang, Sirui; Zhang, Mingming; Hu, Yihong; Sheng, Yanping

doi:10.1007/s11595-023-2678-8

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Most current research on PU asphalt is either on a certain modifier or composite modification, and there are a lack of comparisons among various modifiers. There are still issues that remain from its utilization, such as high construction temperatures and poor temperature stability [ 31 ]. Therefore, thermosetting polyurethane modified asphalt has been studied by several scholars.…”

Section: Introductionmentioning

confidence: 99%

Preparation Scheme Optimization of Thermosetting Polyurethane Modified Asphalt

Sun

Jing

Weng³

et al. 2023

Polymers

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To solve the issue of the poor temperature stability of conventional modified asphalt, polyurethane (PU) was used as a modifier with its corresponding curing agent (CA) to prepare thermosetting PU asphalt. First, the modifying effects of the different types of PU modifiers were evaluated, and the optimal PU modifier was then selected. Second, a three-factor and three-level L9 (33) orthogonal experiment table was designed based on the preparation technology, PU dosage, and CA dosage to prepare the thermosetting PU asphalt and asphalt mixture. Further, the effect of PU dosage, CA dosage, and preparation technology on the 3d, 5d, and 7d splitting tensile strength, freeze-thaw splitting strength, and tensile strength ratio (TSR) of the PU asphalt mixture was analyzed, and a PU-modified asphalt preparation plan was recommended. Finally, a tension test was conducted on the PU-modified asphalt and a split tensile test was performed on the PU asphalt mixture to analyze their mechanical properties. The results show that the content of PU has a significant effect on the splitting tensile strength of PU asphalt mixtures. When the content of the PU modifier is 56.64% and the content of CA is 3.58%, the performance of the PU-modified asphalt and mixture is better when prepared by the prefabricated method. The PU-modified asphalt and mixture have high strength and plastic deformation ability. The modified asphalt mixture has excellent tensile performance, low-temperature performance, and water stability, which meets the requirements of epoxy asphalt and the mixture standards.

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Section: Introductionmentioning

confidence: 99%

Preparation Scheme Optimization of Thermosetting Polyurethane Modified Asphalt

Sun

Jing

Weng³

et al. 2023

Polymers

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“…While the fatigue life of the modified mixtures was still better than that of traditional hot mix asphalt (HMA) after aging, these findings highlight the potential of renewable fibers as a viable alternative for enhancing the fatigue life of asphalt mixtures in support of sustainable development. Furthermore, Li et al recovered bamboo fibers from bamboo residues to enhance asphalt mixture performance, which not only achieved waste utilization, but also delivered considerable environmental benefits and great promotion value [25].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Performance of Asphalt Mastic with Natural Fiber Reinforcement: Basalt and Bamboo Fibers

et al. 2023

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Incorporating fibers into asphalt mixtures as additives and stabilizers can significantly enhance the performance of asphalt pavements. This study aimed to analyze the impact of using basalt and bamboo fibers as modifiers on the properties of asphalt mastics. The effects of different types of fibers on rutting resistance, fatigue resistance, elastic recovery, and low-temperature cracking performance were tested using frequency scanning, linear amplitude scanning (LAS), multiple stress creep and recovery (MSCR), elastic recovery, and bending beam rheometer (BBR) experiments. The study results suggest that adding fibers into asphalt mastics can effectively improve their stiffness, and the higher the fiber content, the better the stiffness enhancement. Moreover, the characteristic flow index of asphalt mastics grows gradually with the rise in temperature, indicating that these materials exhibit near-Newtonian fluid behavior at elevated temperatures. Furthermore, incorporating fibers significantly enhances the high-temperature rutting resistance of asphalt mastics. However, the addition of fibers did not demonstrate any appreciable benefits in terms of fatigue resistance. The elasticity of asphalt mastics cannot be significantly changed by fiber content without compromising their elastic recovery. Surprisingly, the study’s findings showed that adding basalt fibers to asphalt mastics did not improve their resistance to low-temperature cracks. On the other hand, it was discovered that the ability of asphalt mastics to resist cracking at low temperatures could be made up for by the use of bamboo fibers as a modifier together with a raised temperature. Overall, it was discovered that bamboo fibers performed better than basalt fibers at improving the performance of modified asphalt mastics.

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Experimental investigation on the preparation and surface treatment of biomass fibers for stone mastic asphalt mixtures modification

Wang,

Xiong,

et al. 2023

Construction and Building Materials

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Bamboo Fiber Modified Asphalt Mixture Proportion Design and Road Performances Based on Response Surface Method

Cited by 3 publications

References 25 publications

Preparation Scheme Optimization of Thermosetting Polyurethane Modified Asphalt

Preparation Scheme Optimization of Thermosetting Polyurethane Modified Asphalt

Enhancing the Performance of Asphalt Mastic with Natural Fiber Reinforcement: Basalt and Bamboo Fibers

Experimental investigation on the preparation and surface treatment of biomass fibers for stone mastic asphalt mixtures modification

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