Performance evaluation of waterborne epoxy resin modified emulsified asphalt mixtures for asphalt pavement pothole repair

Xu, Ouming; Yang, Li; Xu, Rentao; Liu, Yamin; Dong, Yuming

doi:10.1016/j.conbuildmat.2022.126709

Cited by 21 publications

(4 citation statements)

References 23 publications

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“…Hot mixture asphalt (HMA) is one of the essential materials used for the construction of asphalt pavements in road engineering worldwide [1,2]. However, distresses such as rutting, cracks, potholes, looseness, and so on occur frequently in asphalt pavement due to increases in traffic loading and severe environmental factors [3][4][5]. Therefore, it is of great importance to find ways to strengthen the performance of HMA.…”

Section: Introductionmentioning

confidence: 99%

A Study of the Bond Strength and Mechanism between Basalt Fibers and Asphalt Binders

Sun,

Kou,

et al. 2024

Applied Sciences

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The bond strength between basalt fibers and asphalt binders is an important parameter that can be used to evaluate the influence of basalt fibers on the mechanical properties of asphalt binders and asphalt mixtures. To date, however, there remains a lack of methods that can be used to assess the bond strength between basalt fibers and asphalt binders. This study employed a fiber-asphalt pull-out tester (POT). Significant upward, peak, and downward stages were observed from the relationship curves between the pull-out force (POF) and displacement, corresponding to the holding stage and reaching the maximum POF stage and the sliding or failure stage between fibers and asphalt binders. Maximum POF is recommended to calculate the bond strength between basalt fibers and asphalt binders. The types of asphalt binders suitable for basalt fibers and the appropriate fiber embedding depths for different types of asphalt binders guiding the selection of fiber length are recommended based on the influence of fiber embedding depth and asphalt binders on the fiber–asphalt bond strength. In addition, surface energy was used to calculate the bond strength as well. Surface energy was determined from contact angle measurements using the sessile drop method. Furthermore, a scanning electron microscope (SEM) was employed to examine the bond mechanism between asphalt binders and basalt fibers. These experiments showed how basalt fibers serve to reinforce asphalt mixtures by bonding with asphalt binders.

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Section: Introductionmentioning

confidence: 99%

A Study of the Bond Strength and Mechanism between Basalt Fibers and Asphalt Binders

Sun,

Kou,

et al. 2024

Applied Sciences

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“…When the high-temperature environment rubber modifiers are mixed with asphalt materials, the rubber material swells. The asphalt glue is bonded together and has good adhesion with the surface of the material, enhancing the adhesion effect of the asphalt mixture [11] .Yang Sanqiang studied the mechanism of high-viscosity asphalt and modified agent and explained the mechanism of interpretation of the interaction according to different viscosity performances. As a result, the SBS modified agent was the best compatible at 5%, which can greatly increase the viscosity of asphalt.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Performance of Molecular Dimension Polymer Modified Asphalt Material

Luo,

Zhao,

Zheng

et al. 2024

Preprint

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Matrix asphalt material has poor road performance, which is improved by adding polymer modified agents. The original asphalt material experiment research has a certain limitation in that it cannot truly expose the mechanism and influence of modifiers on asphalt materials. To explore the gain effect of the modified agent on the asphalt material's road performance, the molecular dynamic simulation technology is used to explain its mechanism in the micro dimension. The three parameters of the free volume score, radial distribution function and average directional shift diffusion coefficient are analysed to improve the performance of the modifier on asphalt material, an exploration of the microdimension shows that the amount of SBS modifiers is 6% and the amount of rubber modified asphalt material is 22%. The improvement of materials is better than that of rubber modifiers.

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“…This can occur as a result of inadequate drainage, which impedes moisture removal and creates localized areas saturated with excessive moisture. This leads to breakage and the formation of potholes [8]. However, recent studies have demonstrated that moisture damage in asphalt may be primarily caused by the presence of acidic aggregate, which inherently has a weaker bond with asphalt, and that the long-term aging of asphalt can further worsen this problem [9].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Pellet Material Incorporating Anti-Stripping Emulsifier and Slaked Lime for Pothole Restoration

Kim

2023

Buildings

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Climate change has caused a surge in abnormal weather patterns, leading to a rise in cracks, plastic deformation, and pothole damage on road surfaces. In order to fabricate a ready-mix admixture of warm asphalt mixture (WMA) for pothole restoration, this study aimed to develop a neutralized anti-stripping material in pellet form by extruding a combination of slaked lime and a liquid emulsifier additive. Slaked lime (1% by weight of aggregate) was chosen for its ability to enhance moisture resistance, while a liquid emulsifier (wax + vegetable oil + surfactant + water) was added to create a pellet-type stripping inhibitor for WMA. After successfully fabricating the pellet admixture, this study evaluated the performance of two asphalt mixtures: conventional Slaked Lime Hot Mix Asphalt (LHMA) and the Pellet-Type Anti-Stripping Warm Mix Asphalt (PWMA). Several compatibility tests were conducted to evaluate the quality of the developed material. The results showed that the fatigue resistance of the developed material (PWMA) improved by over 20%, indicating an extended fatigue life for the pavement. The LHMA and PWMA met the quality standard for asphalt mixtures, with a TSR value of approximately 83%. Both mixtures demonstrated improved rutting resistance compared to HMA. The PWMA required 16,500 cycles, while the LHMA required 19,650 cycles to reach a settlement of 20 mm, indicating better moisture resistance than the control mix (13,481 cycles). The modified mixture performed properly in the Cantabro test, with loss rates below 20%, indicating their ability to retain their aggregate structure. The PWMA also showed superior resistance to plastic deformation, with a 12.5% lower phase angle (35°) at a reduced frequency of 10−3. In general, the application of PWMA not only prolongs the pavement lifespan but also reduces the production temperature by over 20 °C, leading to lower emissions and energy consumption. This makes it an environmentally friendly option for pavement applications and contributes to sustainable road construction practices.

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Performance evaluation of waterborne epoxy resin modified emulsified asphalt mixtures for asphalt pavement pothole repair

Cited by 21 publications

References 23 publications

A Study of the Bond Strength and Mechanism between Basalt Fibers and Asphalt Binders

A Study of the Bond Strength and Mechanism between Basalt Fibers and Asphalt Binders

Analysis of the Performance of Molecular Dimension Polymer Modified Asphalt Material

Feasibility of Pellet Material Incorporating Anti-Stripping Emulsifier and Slaked Lime for Pothole Restoration

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