What where the materials used to build Akashi kaikyo bridge built?

1. Steel:

- The bridge's main cables are made of steel wire ropes.

- The towers and main girders are constructed using high-tensile steel.

2. Concrete:

- Concrete was used for the foundation piers and anchorages.

3. Cables:

- The main cables are made of 36,830 high-tensile steel wires, each with a diameter of 5.23 millimeters.

- The cables are covered with anti-corrosion grease and wrapped in polyethylene.

4. Paint:

- The bridge is protected from corrosion with a special paint system that includes epoxy and polyurethane coatings.

5. Bearings:

- The bridge is equipped with roller bearings that allow for thermal expansion and contraction of the bridge.

6. Reinforcement:

- Steel reinforcement bars are used in the concrete structures for additional strength.