1、Performance of optimized composition of epoxy resin adhesive used in

Based on the pull-off and shear test results, it was ultimately determined that the dosage of modified epoxy binder for HFST mixtures should be controlled at 1.0–1.2 kg/m2, and the dosage of aggregate should be controlled at 3.3–4.3 kg/m 2.

2、Dosage of Epoxy Resin Curing Agent

Abstract: Epoxy resin is widely used in modern engineering for manufacturing composite materials due to its excellent adhesive properties, mechanical strength, and chemical resistance. the efficiency and quality of the curing process largely depend on the rational dosage of the curing agent.

3、Curing Agent: Types & Process of Curing Agents for Epoxy Resin

Explore the main types of curing agents & various crosslinking methods which help to improve the polymerization process to select the right curing agent for coating formulation.

4、Dosage of Epoxy Sealing Curing Agents

In this work, a low-shrinkage, high-strength epoxy resin plugging agent was prepared based on a low-viscosity petroleum-based epoxy resin, and the curing agent and accelerator dosage were optimized, and the performance of injectable, mechanical, adhesion, and plugging was evaluated.

5、Optimised repairment properties of waterborne epoxy resin–cement

FTIR analysis demonstrated that the curing degree of the epoxy resin in the composite depended on the epoxy resin-to-hardener ratio and dosage. Although incorporating epoxy affected the early hydration, the retardation effect gradually weakened with increased age.

Dosage of Matting Agents in Epoxy Resin Curing

Determining the dosage of matting agents in epoxy resin curing requires comprehensive consideration of factors such as resin type, curing conditions, mixing ratios, and additives.

Preparation of Epoxy

Epoxy resin concrete can be used as one kind of repairing material for pavement. In this study, Bisphenol A epoxy resin (E51) and four different types of curing agents were selected.

Epoxy Curing Agents

Amine curing agent technology for curing polyisocyanate resins. Amicure® IC series of products are specifically designed for use with polyisocyanate resins and other standard HDI trimer based polyisocyanates.

Properties of epoxy

In this study, taking into account the performance and structural differences of different epoxy resins, curing agents, and tougheners, we designed an optimized combination of materials that can be cured at room temperature and exhibits good low-temperature toughness.

The epoxy resin system: function and role of curing agents

Curing agents are critical components of aqueous epoxy resin systems. Unfortunately, its uses and applications are restricted because of its low emulsifying yields. Epoxy resins are frequently used in electrical devices, castings, packaging, adhesive, corrosion resistance, and dip coating.

In modern construction engineering, concrete—as one of the most widely used building materials—plays a critical role in ensuring the safety, durability, and cost-effectiveness of structures. The application of epoxy resin curing agents has significantly enhanced concrete performance, particularly in improving compressive strength, impermeability, and chemical corrosion resistance. optimizing the dosage of epoxy resin curing agents in concrete remains a focal concern in the industry. Rational dosage not only ensures quality but also reduces costs and minimizes resource waste. This article explores the dosage of epoxy resin curing agents under different conditions and proposes corresponding recommendations.

I. Importance of Epoxy Resin Curing Agent Dosage in Concrete

The strength and durability of concrete largely depend on its microstructural formation during the hardening process. Epoxy resin curing agents are pivotal in this process. They promote densification of the cement matrix and chemically bond with hydration products of cement to create a denser interface, thereby enhancing overall performance. Consequently, the dosage of epoxy resin curing agents directly impacts concrete properties.

II. Factors Affecting Epoxy Resin Curing Agent Dosage

1. Concrete Design Strength Requirements

   • Higher-strength concrete typically requires greater amounts of epoxy resin curing agents. This is because higher-strength concrete demands a thicker cement matrix to withstand external loads, and curing agents enhance matrix densification and load-bearing capacity.

2. Environmental Conditions

   • Temperature, humidity, and exposure to corrosive substances (e.g., acids, alkalis) influence cement hydration rates and curing agent effectiveness. Corrosive environments may necessitate increased dosages to neutralize harmful substances and maintain durability.

3. Construction Methods

   • Wet-mixing processes generally reduce curing agent requirements compared to dry-mixing, as wet mixing ensures uniform dispersion of cement particles. Mechanized construction also minimizes human error, further optimizing dosage.

III. Optimization Strategies for Epoxy Resin Curing Agent Dosage

To balance performance and cost-efficiency, the following strategies are recommended:

1. Precise Calculation Based on Design Strength

   • Tailor dosage to concrete mix ratios, cement type/quantity, and aggregate properties while aligning with design strength requirements.

2. Account for Environmental Conditions

   • Assess environmental factors (e.g., humidity, corrosive agents) pre-construction and adjust dosage to ensure optimal hardening conditions.

3. Adopt Advanced Construction Techniques

   • Utilize wet-mixing and mechanized methods to improve efficiency, reduce errors, and lower curing agent usage.

4. Regular Quality Monitoring

   • Test concrete properties (e.g., strength, density) during construction. Adjust dosages promptly if quality standards are unmet.

5. Resource Optimization

   • Minimize curing agent usage without compromising performance by refining mix designs and selecting cost-effective materials.

Optimizing epoxy resin curing agent dosage in concrete requires综合考虑multiple factors, including design specifications, environmental conditions, and construction methods. By leveraging precise calculations, environmental assessments, advanced techniques, quality monitoring, and resource optimization, it is possible to achieve superior concrete performance while maximizing economic efficiency.