Bridge concrete anti-corrosion solution
Bridge Concrete Corrosion Background
Concrete is widely used in bridge structures, covering all key parts of bridges: concrete piers, concrete abutments, concrete bridge decks, concrete bridge beams, concrete bridge bearings, concrete guardrails, drainage facilities, etc.
The corrosion environment that bridge concrete faces includes not only the three main types of corrosion environments such as atmospheric corrosion, water medium corrosion, and soil corrosion, but also wind erosion, frost damage, microbial corrosion, marine organism corrosion, chemical medium corrosion, etc.
Due to the inherent limitations of concrete material performance, it is unrealistic to achieve long-life protection solely through internal protection. Even if it can be achieved, the cost would be enormous, and it lacks repairability. Therefore, external coating protection is the most effective, economical, and repairable method.
Bridge Concrete Protective Coatings
Silane Impregnant
Silane impregnation is a colorless transparent liquid product made from high-purity n-butyl triethoxysilane (also known as isobutyl triethoxysilane). It has excellent resistance to chemicals, weathering, wear, and dirt accumulation, effectively preventing base materials from being eroded by seepage, sunlight, acid rain, and seawater, thus extending the service life of buildings.
Superhydrophobic Self-Cleaning Coating
The coating has good adhesion, hardness, extraordinary weather resistance, light retention, and color retention; superior chemical resistance; and excellent self-cleaning properties. Suitable for advanced protection and decoration of various bridge concretes, construction machinery, or important engineering steel structures or concrete surfaces.
Epoxy Glass Flake Coating
The coating is hard, wear-resistant, and has strong adhesion, featuring excellent water resistance, salt spray resistance, and anti-rust performance. Using glass flake technology to enhance the coating's impact resistance and wear resistance performance, it has good adhesion on various surface conditions and can be applied to wet blasted substrates.
Graphene Solvent-Free Wear-Resistant Anti-Fouling Coating
The coating has excellent adhesion, superior mechanical properties, easy application, safety, environmental friendliness, adaptability to extreme corrosive atmospheric environments, seawater, fresh water, drinking water, soil burial, immersion in acidic and alkaline chemical substances, and other corrosive environments.
Bridge Concrete Protective Coating System
| Coating Area | Coating Layer | Type of Paint | Dry Film Thickness (μm) | Total Film Thickness (μm) |
|---|---|---|---|---|
| Air Zone | Primer | Epoxy Sealer | 50 | 270 |
| Middle Coat | Epoxy Resin Paint | 140 | ||
| Topcoat | Fluorocarbon Topcoat / Superhydrophobic Self-Cleaning Coating | 80 | ||
| Splash Zone, Submerged Zone | Primer | Silane Impregnant | Penetration 3mm | / |
| Base and Topcoat Combined | Epoxy Glass Flake Coating / Graphene Solvent-Free Wear-Resistant Anti-Fouling Coating | 600 | ||
The above bridge concrete protective coating system is designed for long-term corrosion protection of 20 years under severe corrosion conditions. The final coating配套 needs to be designed according to the project's location environment, corrosion protection period, investment budget, corrosion substrate, environmental protection requirements, etc.
Contact Deqian Xincai, combining industry standards with our extensive experience in anti-corrosion to design an all-around bridge concrete anti-corrosion solution for you.
Bridge Concrete Protective Coating System Performance Indicators
| Corrosion Environment | Corrosion Protection Period | Water Resistance (h) | Seawater Resistance (h) | Alkali Resistance (h) | Chemical Resistance (h) |
Chloride Ion Permeability [mg/(cm²·d)] |
Adhesion (MPa) | Weather Resistance (h) |
|---|---|---|---|---|---|---|---|---|
| I | M | 8 | - | 72 | - | - | ≥1.0 | 400 |
| H | 12 | - | 240 | - | - | ≥1.0 | 800 | |
| II | M | 12 | - | 240 | - | - | ≥1.0 | 400 |
| H | 24 | - | 720 | - | - | ≥1.5 | 800 | |
| III-1 | M | 240 | - | 720 | 168 | - | ≥1.5 | 500 |
| H | 240 | - | 720 | 168 | - | ≥1.5 | 1000 | |
| III-2 | M | 240 | 240 | 720 | 72 | ≤1.0x10-3 | ≥1.5 | 500 |
| H | 240 | 240 | 720 | 72 | ≤1.0x10-3 | ≥1.5 | 1000 | |
| Im1 | M | 2000 | - | 720 | 72 | - | ≥1.5 | 500 |
| H | 3000 | - | 720 | 72 | - | ≥1.5 | 1000 | |
| Im2 | M | - | 2000 | 720 | 72 | ≤1.0x10-3 | ≥1.5 | 500 |
| H | - | 3000 | 720 | 72 | ≤1.0x10-3 | ≥1.5 | 1000 |
Corrosion Environment: I: Weak Corrosion; II: Moderate Corrosion; III-1: Strong Corrosion (Industrial Atmosphere); III-2: Strong Corrosion (Marine Atmosphere); Im1: Freshwater Immersion; Im2: Sea Water or Salt Water Immersion.
Corrosion Protection Period: M: Standard Type, 10 Years; H: Long-Life Type, 20 Years.
Bridge Concrete Anti-Corrosion Coating Manufacturers
Deqian Xincai is a national brand dedicated to the research, development, production, sales, and integrated painting services of high-performance anti-corrosion coatings. We provide anti-corrosion materials for bridge concretes and undertake anti-corrosion works for various bridges.
For questions about bridge concrete anti-corrosion coating prices, bridge concrete anti-corrosion paint performance, bridge concrete anti-corrosion coating schemes, bridge anti-corrosion painting package price, etc., please contact us by phone: 400-680-8502
