In my opinion I think that the challenge of building this bridge is the most important distance. The building of this bridge built at a distance far enough. It creates distance the longest in the world. The total ditance is length of 29.6 km in the sea . which are minor Characteristics of sea basing its climate, topography bridge. The nature of the sea is high in sodium and sulfur effect to the steel to rust more quickly than normal water and salinity of sea water also affects the cement used to make concrete, construction, corrosion sensitive than usual.Climate change. For example, the phenomenon of high water, precipitation, resulting in construction delays. If the storm makes heavy work inefficiency and to extend the working time and evaluation of the budget, it is more reasonable period because the construction of the bridge, and then create a distance far enough. The nature of the terrain Maybe due to the different soil layers in each space.
How to prevent further corrosion of steel in many ways, such as coated steel.To prevent the steel is exposed to air and water directly.There are many ways , such as paint, plating with metals such as tin , zinc, lead , iron , or the unused soaked in oil to prevent rust .
In terms of mortar to prevent sea erosion that requires cement mortar is made