1、Investigation of the performance evolution mechanism of epoxy asphalt
To determine the optimal material composition, mechanical properties, curing mechanisms, viscosity characteristics, and microstructure of epoxy asphalt binder (EAB) under varying curing agent contents were investigated.
2、Influence of curing agent ratio, asphalt content and crosslinking
The results show that the raise of the crosslinking degree and the proportion of anhydride curing agent increased the Tg of epoxy asphalt, impairing the low temperature performance. The increase in asphalt content was beneficial to the stability of the epoxy asphalt.
3、Preparation and curing behaviour of microencapsulated curing agents for
This study aimed to improve control over the curing behaviour of cold-mixed epoxy asphalt by using a microencapsulated curing agent (2-PZ@PC). Prepared through solvent evaporation, the 2-PZ@PC microcapsules had 2-phenylimidazole as the core material and polycarbonate as the shell material.
4、(PDF) Study on the Curing Process of Epoxy Asphalt
In the present study, the curing process of epoxy asphalt was studied using Fourier transform infrared spectroscopy (FTIR) with attenuated total reflectance, fluorescent microscopy...
5、Study on curing kinetics of epoxy system and DFT simulation
At the begin-ning of the reaction, as shown in Fig. 13 (a), the epoxy resin, curing agent, and matrix asphalt are uniformly dissolved in each other, and the asphalt phase is completely inte-grated into the uncured epoxy resin and oleylamine curing
Synthesis of a novel bio
In this study, a bio-based curing agent MYM was synthesized from Maleic anhydride and Myrcene. The cured epoxy EP/MYM with the weight ratio of 1:1 were prepared.
Curing condition and optimum formulation of waterborne
Current researches on waterborne epoxy emulsified asphalt are not deep enough and its application is also few due to the complexity of type.Laboratory tests were therefore conducted to systematically investigate the effects of curing conditions of waterborne epoxy emulsified asphalt,dosage of waterborne epoxy resin and curing agent ...
Effects of compound curing agent on the thermo
Epoxy asphalt curing system was prepared by sebacic acid compound with methyl-tetrahydrophthalic anhydride (MeTHPA) or Tung oil anhydride (TOA).
Influence Mechanism of Epoxy Resin and Curing Agent on High
The results show that adding epoxy resin and curing agent into asphalt can significantly improve the rutting factor and complex shear modulus of asphalt and reduce the phase angle and the viscosity growth rate of asphalt changed from fast to slow.
The effect of composite curing agent ratio on the photooxidative aging
In this paper, epoxy asphalt with an acidic composite curing system was adopted, the composite curing agent system consisted of a dicarboxylic acid curing agent and an anhydride curing agent.
Epoxy asphalt is a composite material widely used in road construction, hydraulic engineering, and building industries. Composed of epoxy resin and asphalt, it exhibits excellent adhesion, impermeability, and wear resistance. a common question arises in practical applications: Can the curing agent for epoxy asphalt be omitted? This article explores this issue from multiple perspectives.
First, it is essential to understand the role of the curing agent. A curing agent is a specialized chemical that catalyzes the reaction between epoxy resin and asphalt, enabling their tight bonding to form a robust composite. This reaction not only enhances mechanical properties but also improves weather resistance, aging resistance, and corrosion resistance. Thus, the curing agent is critical to the performance and application of epoxy asphalt.
Can the curing agent be omitted? The answer is no. While in specific scenarios, such as small-area repairs or temporary applications, the curing agent might seem unnecessary, this does not justify its complete omission. The following reasons explain why the curing agent cannot be dispensed with:
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Performance Limitations: Even without a curing agent, some reaction between epoxy resin and asphalt occurs. lacking a catalyst significantly slows the reaction rate, compromising material properties. Adhesion, wear resistance, and durability would all be adversely affected.
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Construction Challenges: Omitting the curing agent could make mixing epoxy resin and asphalt difficult or uneven, affecting aesthetic quality and potentially causing施工 issues later.
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Cost Implications: Although curing agents are inexpensive, excluding them might increase overall costs due to reduced material efficiency, undermining project economics.
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Environmental Risks: Epoxy asphalt curing agents are typically eco-friendly. Omitting them could elevate environmental risks, such as volatile organic compound (VOC) emissions during construction.
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Regulatory Requirements: In many regions, strict regulations mandate the use of curing agents to ensure工程质量 and safety. Violating these rules could lead to legal liabilities and financial losses.
while the curing agent may occasionally be skipped in niche applications, its use remains indispensable in most cases to guarantee material performance, construction feasibility, cost-effectiveness, and regulatory compliance. decisions should align with specific project needs, but the importance of the curing agent in epoxy asphalt systems cannot be overstated.
