Research on the Rheological Properties and Modification Mechanism of Epoxy Resin/SBS Composite-Modified Asphalt DOI Open Access
Jinchao Yue, Xiaofan Nie, Xiaoqian Liu

et al.

Coatings, Journal Year: 2024, Volume and Issue: 14(10), P. 1253 - 1253

Published: Oct. 1, 2024

Both epoxy resin (ER) and SBS are considered effective pavement materials for avoiding ruts. However, asphalt suffers from poor low-temperate performance a high material cost in practical applications. Aiming to tackle these issues, new type of composite modifier (ER-SBS) has been fabricated by combining with SBS. This work prepared modified different doping amounts using the above (ER-SBS), intending explore properties composite-modified modification mechanism modifier. Furthermore, effects at on viscoelastic property were explored through rheological tests, then was compared matrix SBS-modified asphalt. In addition, investigated fluorescence microscopy infrared spectroscopy. The difference between rut test dynamic modulus test. research results showed that improved high- low-temperature performances When amount raised 9%, exhibited better effect than indicated demonstrated stronger deformation resistance temperature sensitivity. Fluorescence suggested crosslinking forms mesh structure which greatly improves its deformation. From spectroscopy, clearly functions as physical

Language: Английский

Preparation and characterization of epoxy vitrimer asphalt based on transesterification dynamic covalent bond system DOI
Zhe Zhao,

Cong Qi,

Guanyu Li

et al.

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134530 - 134530

Published: Feb. 3, 2025

Language: Английский

Citations

0
Impact of Curing Time and Temperature on Bond Performance of Epoxy Resin Adhesives for Steel Bridge Decks DOI Open Access
Chuanbin Fan,

Huanyong Chen,

Feng Lin

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(8), P. 1018 - 1018

Published: April 9, 2025

The bonding performance of epoxy resin adhesives plays a critical role in ensuring interlayer adhesion and long-term durability steel bridge deck pavements. However, the construction environment temperature curing time significantly influence properties adhesives. To address this issue, systematic evaluations tack-free were conducted. results demonstrate that under identical durations, tensile bond strength between layer plate increases with higher temperatures. Similarly, at constant temperatures, extended times lead to improved strength. Both temperatures longer durations reduce adhesive. Under natural outdoor conditions, adhesive achieves design requirements for both after 48 h curing, optimal workability. Conversely, prolonged beyond 72 reduced while maintaining acceptable time. For ambient duration is determined be 48~72 h, balancing (preventing equipment). This research offers technical guidance field pavement on decks by establishing protocols ensure reliable

Language: Английский

Citations

0
Study on the Performance of Epoxy-Modified Asphalt and Steel Slag Ultra-Thin Friction Course DOI Open Access

Zhang Quan-min,

Ziyu Lu,

Anqi Chen

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(18), P. 4513 - 4513

Published: Sept. 13, 2024

Ultra-thin overlays (UTOL) are a standard highway pre-maintenance method used to improve the road surface performance of asphalt pavements and repair minor rutting cracking. However, thin thickness makes it very sensitive external changes, which increases its wear shortens life. So, this paper aims prepare durable skid-resistance ultra-thin overlay using epoxy (EA) steel slag. First, physical properties EA were characterized by penetration, softening point, flexibility, kinematic viscosity tests. The dynamic shear rheometer (DSR) test characterizes EA’s rheological properties. Differential Scanning Calorimetry (DSC), viscosity, Fourier transform infrared spectroscopy (FTIR) curing process. Finally, pavement an (EUTOL) prepared with slag was tested. results show that resin particles increase in dosage, at 40%, uniformly distributed most significant area share. With addition resin, needle penetration decreases then increases, flexibility slower rate, point rises significantly. Moreover, growth elastic component significantly improved high-temperature viscoelastic Considering properties, optimal doping amount 40% selected. By analyzing behavior (optimum dosage), combination temperature is 150 °C, meets needs mixing paving mixtures. After 12 h maintenance 120 reaction sufficient. durability, high-temperature, low-temperature, water stability, fatigue resistance UTOL can be effectively coarse aggregate.

Language: Английский

Citations

3
Dynamic Viscoelastic Behavior of Epoxy Asphalt Mixture under Four-Point Bending DOI Creative Commons

Baiqing He,

Zhiyong Huang,

Jingsong Chen

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(10), P. 3061 - 3061

Published: Sept. 25, 2024

Given the dominant failure mode of steel bridge deck pavement layers, which is flexural–tensile damage, dynamic modulus parameters conventionally determined through uniaxial compression testing are found to be inadequate for design or performance analysis these layers. In order simulate actual stress a structure under wheel load, four-point bending fatigue test method and used measure an epoxy asphalt mixture, differences between two methods analyzed. Furthermore, employed investigate phase angle properties across varying temperatures frequencies, facilitating creation master curves utilizing Sigmoidal models correlate data at diverse temperature conditions. This study delves into influence resin content, mixture composition, aging on modulus. The experimental results show that measured by exceeds obtained from tests, with difference initially increasing then decreasing as rises. discrepancy significantly impacts mechanical calculations underscoring importance selecting appropriate method. Temperature, frequency, content have pronounced effects viscoelastic mixtures. Specifically, increases, undergoes decrease, whereas exhibits increase. Additionally, augments increase in loading while varied trends frequency shifts different temperatures. Both WLF effective constructing curve representations flexural angle. incorporation transforms primarily viscous more elastic material, enhancing mixture. Notably, mixtures 50% 60% exhibit comparable moduli angles, displaying notably superior compared those 40% content. For large-scale pavement, recommended. Moreover, demonstrate robust resistance, minimal variations before after aging. research can enable acquisition whole domain domain, provide reliable mixed application environmental pavement.

Language: Английский

Citations

3
Research on the Rheological Properties and Modification Mechanism of Epoxy Resin/SBS Composite-Modified Asphalt DOI Open Access
Jinchao Yue, Xiaofan Nie, Xiaoqian Liu

et al.

Coatings, Journal Year: 2024, Volume and Issue: 14(10), P. 1253 - 1253

Published: Oct. 1, 2024

Both epoxy resin (ER) and SBS are considered effective pavement materials for avoiding ruts. However, asphalt suffers from poor low-temperate performance a high material cost in practical applications. Aiming to tackle these issues, new type of composite modifier (ER-SBS) has been fabricated by combining with SBS. This work prepared modified different doping amounts using the above (ER-SBS), intending explore properties composite-modified modification mechanism modifier. Furthermore, effects at on viscoelastic property were explored through rheological tests, then was compared matrix SBS-modified asphalt. In addition, investigated fluorescence microscopy infrared spectroscopy. The difference between rut test dynamic modulus test. research results showed that improved high- low-temperature performances When amount raised 9%, exhibited better effect than indicated demonstrated stronger deformation resistance temperature sensitivity. Fluorescence suggested crosslinking forms mesh structure which greatly improves its deformation. From spectroscopy, clearly functions as physical

Language: Английский

Citations

0