1、Investigation on fundamental properties and chemical characterization

The results demonstrated that the fluidity of epoxy resin modified composite grout increased first and then decreased with the addition of epoxy resin. The addition of epoxy resin effectively reduced the bleeding ratio, and kept the grouting fluidity for a certain period of time after mixing. The average particle size of composite grout decreased.

2、High

The invention belongs to the field of construction materials, and particularly relates to a high-permeability polyurethane graft-modified epoxy resin interpenetrating-network polymer grouting material which is composed of a component A and a component B, wherein the component A is composed of 5-30 parts of isocyanate-terminated polyurethane prepolymer, 95-70 parts of epoxy resin and 10-30 ...

3、High

1、Chongqing Modified Epoxy Resin Grouting Material Chongqing-modified epoxy resin grouting material, as a high-performance solution, is increasingly utilized in building reinforcement, underground engineering, and hydropower projects.

4、Price Analysis of High

High-permeability modified epoxy resin grouting material is a high-performance chemical building material, primarily used for repairing concrete structural cracks, anti-corrosion protection of steel structures, and waterproofing and leak-proofing in underground engineering.

A porous IPN

Epoxy based grouting materials should concern with low viscosity, high strength, rapid curing, and low shrinkage. A polyurethane/epoxy grouting materi…

Research on new magnetic epoxy resin composite slurry materials and

Epoxy resin is combined with a specific ratio of high-permeability modified epoxy resin AB grouting slurry (a specialized material for crack repair). Therefore, when designing the mixture, the ...

Roles and Applications of Modified Epoxy Resin Grouting Material

as a high-performance grouting material, high-permeability modified epoxy resin offers numerous advantages and broad application prospects. Its ability to deliver lasting structural reinforcement and waterproofing, combined with adaptability to complex engineering scenarios, positions it as a critical asset in construction.

High

3、HP HP-2 high permeability modified epoxy chemical grout is a chemical grouting material with high permeability function used for crack grouting reinforcement and various concrete structures and reinforcement of hydropower dam foundation.

High permeability modified epoxy resin reinforced grouting material

High Permeability Modified Epoxy Resin Reinforced Grouting Material , Find Complete Details about High Permeability Modified Epoxy Resin Reinforced Grouting Material,Epoxy Grouting Material,Grouting Material For Equipment Installation,Biaoyuan Epoxy Resin Grouting Materials from Mortar Supplier or Manufacturer-Jinan Biaoyuan Construction Material Co., Ltd.

Preparation and properties of cement

Cement-based epoxy resin grouting material was prepared by modifying the cement-based epoxy resin (EP) emulsion with ordinary Portland cement P.O42.5 as raw material. The effects of EP doping amount on the phase structure, microstructure, mechanical properties, diffusion resistance and chloride ion erosion resistance of the grout materials were studied. The results show that the addition of EP ...

In the field of construction and maintenance, epoxy resin grouting materials are widely used due to their excellent adhesive properties, superior mechanical strength, and good chemical resistance. in practical engineering applications, various factors often lead to delamination between the grouting material and the substrate. This not only compromises structural stability and safety but also increases repair difficulties and costs. exploring effective ways to prevent and resolve delamination issues in epoxy resin grouting materials is critical. This article analyzes the causes of delamination in high-permeability modified epoxy resin grouting materials and proposes corresponding solutions.

I. Cause Analysis of Delamination in High-Permeability Modified Epoxy Resin Grouting Materials

1. Improper Material Selection The formulation of the grouting material directly affects its adhesion to the substrate. If certain components of the grouting material are chemically incompatible with the substrate or if their proportions are imbalanced, insufficient bonding force may result, leading to delamination.

2. Construction Process Issues Improper operational techniques during construction are a significant cause of delamination. For example, excessive pressure or too-rapid pouring during grouting may prevent the material from fully filling microscopic gaps in the substrate, resulting in voids. Additionally, improper temperature control during the curing process can degrade the material’s performance and induce delamination.

3. Environmental Factors Environmental conditions heavily influence the performance of grouting materials. Extreme humidity, temperature fluctuations, or other environmental stressors can disrupt the curing process, weakening adhesion to the substrate.

4. Poor Substrate Surface Preparation The quality of substrate surface treatment impacts adhesion. Contaminants such as oil, rust, or other residues on the substrate surface reduce the bonding strength between the grouting material and the substrate, causing delamination.

II. Solutions for Delamination in High-Permeability Modified Epoxy Resin Grouting Materials

1. Select Suitable Grouting Materials Before construction, carefully review material specifications to ensure compatibility and adhesion between the grouting material and substrate. Choose high-permeability modified epoxy resin grouting materials tailored to the substrate’s properties and working environment to enhance bonding effectiveness.

2. Optimize Construction Processes Follow standardized procedures strictly to ensure thorough filling of microscopic gaps in the substrate. Control pouring speed and pressure to avoid voids caused by improper operations. Maintain appropriate temperature and humidity during curing to promote optimal material performance.

3. Enhance Substrate Surface Treatment Thoroughly clean and prepare the substrate surface before construction, removing contaminants like oil and rust. Use detergents or degreasers to improve surface cleanliness, thereby increasing adhesion between the grouting material and substrate.

4. Use Appropriate Additives Introduce additives such as thickeners or retarders to improve flowability, pumpability, and adhesion of the grouting material. These additives reduce the risk of delamination by enhancing material performance.

5. Regular Inspection and Maintenance After construction, conduct periodic inspections of grouted areas. Address delamination promptly via methods like drilling and resin injection or re-grouting. Proactive maintenance ensures early detection and resolution of issues, safeguarding structural integrity.

Delamination of epoxy resin grouting materials is a complex issue influenced by material selection, construction processes, environmental conditions, and substrate surface preparation. By understanding the root causes and implementing effective solutions, adhesion between grouting materials and substrates can be significantly improved, reducing delamination risks. In practical applications, prioritizing material compatibility, optimizing construction techniques, and rigorous surface preparation are essential to ensuring the reliable performance of grouting materials and the long-term stability of structures.