A bridge leaps across the vast sea, turning a natural chasm into a thoroughfare. At the starting point of the "Maritime Silk Road," a giant dragon divides the boundless Lingding Ocean, winding its way into the distance.
This is the Hong Kong-Zhuhai-Macao Bridge, acclaimed as the "Eighth Wonder of the 21st Century." With over 400 new patents and seven world records, it has not only fulfilled the bridge dream of generations and demonstrated Chinese resilience and wisdom to the world, but also established the "watertight integrity, 120-year service life" Chinese engineering standard.
120 years of watertight integrity?
Achieved through a robust "anti-corrosion system"
Hong Kong-Zhuhai-Macao Bridge
In reality, durability is the fundamental prerequisite for all bridge projects and the key to ensuring their quality and longevity. The Hong Kong-Zhuhai-Macao Bridge was designed to meet a 120-year service life, withstand Category 16 typhoons, and resist magnitude 8 earthquakes. Consequently, its anti-corrosion system requirements are exceptionally stringent.
To enhance the bridge's corrosion resistance, the design team adopted a triple-method approach of "coating + cathodic protection + in-situ monitoring," which significantly reduces the electrochemical reaction rate between seawater and the bridge's metal materials, enabling the structure to achieve its 120-year design life.
Steel Pipe Composite Pile Hoisting, Transportation, and Pile Driving
Internal and External Coating of Steel Pipe Composite Piles
The coating used is a new generation of high-performance epoxy, which addresses durability issues by focusing on key performance indicators such as coating anti-permeability and cathodic disbondment resistance. By adjusting the coating formulation and improving the application process, researchers reduced the coating's water absorption and dissolution rates, effectively enhancing its anti-permeability capability and strengthening the bond between the coating and the metal. This has, to some extent, ensured the coating meets the 120-year durability design requirement, breaking the domestic "century convention" for major bridges.
JIADUOCAI Anti-Corrosion Powder Coatings for Steel Rebars
Strengthening the Bridge's "Bones and Tendons"
JIADUOCAI's high-performance insulating and anti-corrosion epoxy powder coating, leveraging its advantages such as rapid curing and excellent corrosion resistance, passed rigorous high-standard evaluations on merit and became one of the selected materials for steel rebar coating on the Hong Kong-Zhuhai-Macao Bridge.
JIADUOCAI High-Performance Insulating Anti-Corrosion Epoxy Powder Coating
Formulated using specialized resins and curing agents as the primary raw materials.
Fast Curing Speed
Excellent Anti-Corrosion Performance
Strong Adhesion, High Protective Performance
Superior Salt Spray Resistance
Zero VOC Emissions
Free of Heavy Metals
Reduced Impact on Marine Ecosystems
Widely used for anti-corrosion coating on steel reinforcements in ports, docks, bridges, and similar structures.
In 2009, the product was recognized as a Guangdong Provincial High-Tech Product.In 2013, it obtained product certification from the China Academy of Building Research Certification Center and was successfully applied in the Hong Kong-Zhuhai-Macao Bridge project.
The completion and opening of the Hong Kong-Zhuhai-Macao Bridge marked a milestone in the field of engineering technology for China and the world. This year marks the fifth anniversary of the bridge's opening to traffic. As one of the enterprises contributing to the coating engineering of the bridge, JIADUOCAI has always regarded this achievement as an honor, etched into the company's history of dedication.
Looking ahead, JIADUOCAI will continue to adhere to its client-centric and market-oriented approach, refining products based on demand and driving innovation. By embracing diverse strengths and sustaining progress, we will provide more high-quality products for national projects.
Statement: Images are provided by the Hong Kong-Zhuhai-Macao Bridge Authority, with some from online sources. Please contact us for removal if any infringement occurs.
