1、Preparation and properties of polyurethane/epoxy

In this study, a rosin-based acid anhydride curing agent, maleic rosin anhydride (MRA), was used to prepare a polyurethane/epoxy resin/MRA modified asphalt (PEMMA) binder.

2、Preparation and performance of waterborne resin

To enhance the tensile, adhesion and high and low temperature rheological properties of resin-based modified emulsified asphalt for micro-surfacing, so as to comprehensively enhance the quality of anti-deformation, wear resistance and water loss resistance of micro-surfacing, a series of waterborne resin modifiers were synthesised.

3、Technical development of modified emulsion asphalt: A rev

Based on an extensive literature review, this study presents optimal modification methodologies and preparation schemes for various types of modified emulsion asphalt, establishes specific usage scenarios, and offers theoretical guidance to enhance its performance and expand its scope of application.

4、Investigation of Phenolic Resin

This study comprehensively examines the influence of phenol-formaldehyde resin (PF) on the performance of base asphalt and its mixtures for road applications, emphasizing its innovative use in enhancing pavement quality. Optimal PF content was ...

5、Technical development of modified emulsion asphalt: A review on the

Based on an extensive literature review, this study presents optimal modification methodologies and preparation schemes for various types of modified emulsion asphalt, establishes specific...

Fabrication of High

The optimal preparation for the WEREA mixture was proposed as follows: double-sided compaction for 50 times each, aging at 60 °C for 48 h, optimal moisture content of 5.14%, cement content of 2.5%, and emulsion content of 8.4%.

Preparation and performance characterization of waterborne epoxy resin

Waterborne epoxy resin modified emulsified asphalt (WEREA) was then prepared for the application of a tack coat material. Fourier Transform Infrared Spectroscopy (FTIR) test was conducted to explore the possible reactions between the compositions.

Performance Evaluation and Mechanism Analysis of Modified Emulsion

The findings of this study are instrumental in advancing the application of waterborne epoxy resin modified emulsified asphalt mixtures in road maintenance and repair, offering a sustainable and performance-enhancing solution for pavement materials.

Thermosetting resin modified asphalt: A comprehensive review

The material composition, modification mechanism, and curing behavior of epoxy asphalt, thermosetting polyurethane modified asphalt, unsaturated polyester modified asphalt, and other...

Thermosetting resin modified asphalt: A comprehensive review

In order to promote the research of thermosetting resin modified asphalt, to provide direction for its further research, this paper reviews the research progress of thermosetting resin modified asphalt in recent years.

In modern transportation construction, asphalt pavement is widely used due to its excellent durability, cost-effectiveness, and ease of construction and maintenance. asphalt itself has limitations, such as high-temperature softening and low-temperature brittleness, which restrict its performance under extreme climatic conditions. enhancing the physical and chemical properties of asphalt through resin modification technology is particularly important. This article introduces the basic concepts, preparation methods, practical applications, and future development trends of resin-modified asphalt.

I. Basic Concepts of Resin-Modified Asphalt

Resin-modified asphalt is a composite material that improves asphalt performance by adding polymer resins. As modifiers, resins form an interpenetrating network structure with asphalt, significantly enhancing its heat resistance, water damage resistance, and extending the service life of roads. This modified asphalt typically exhibits excellent mechanical strength, low-temperature flexibility, and superior waterproof performance, making it suitable for critical infrastructure such as highways and urban roads.

II. Preparation Methods

The preparation process of resin-modified asphalt includes the following steps:

1. Resin Selection: Choose appropriate polymer resins (e.g., epoxy resin, phenolic resin, polyurethane resin) based on desired modification effects.
2. Mixing Resin and Asphalt: Blend the selected resin with asphalt at a specific ratio to ensure uniform dispersion.
3. Adding Additives: Introduce stabilizers, antioxidants, plasticizers, or other additives to improve performance.
4. Stirring and Heating: Thoroughly mix the resin-asphalt blend and heat it to fully dissolve the resin, forming a homogeneous mixture.
5. Molding and Cooling: Pour the modified asphalt into molds, then naturally cool or use controlled cooling to solidify the mixture.
6. Inspection and Packaging: Test the solidified modified asphalt for compliance with performance standards before packaging for use.

III. Practical Applications

Resin-modified asphalt has been widely applied in various fields, including:

1. Highway Construction: Used in base and surface courses to enhance load-bearing capacity and fatigue resistance.
2. Urban Road Maintenance: Rapidly restores trafficability for tasks like crack filling and pothole repair.
3. Airport Runway Construction: Withstands high-speed aircraft pressure, extending runway lifespan.
4. Bridge Construction: Reduces structural damage caused by vehicle loads and environmental factors.

IV. Future Development Trends

Advancements in technology and environmental requirements are driving new opportunities for resin-modified asphalt:

1. Green Manufacturing: Develop eco-friendly processes to reduce hazardous emissions and improve material recyclability.
2. High-Performance Materials: Research novel polymer resins to meet diverse application needs and enhance comprehensive properties.
3. Smart Production: Leverage automated equipment and intelligent control systems for efficient, quality-controlled production.
4. Multifunctional Integration: Create composite modified asphalt products with combined functions (e.g., waterproof and anti-skid) for complex environments.

resin-modified asphalt, as a vital road material, will continue playing a significant role in transportation construction. Through ongoing technological innovation and optimization, it will offer greater possibilities and value for infrastructure development.