Issues in the corrosion prevention design of buildings
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Our company currently has a substation located by the sea, with a foundation depth of 1.6 meters. Investigations have shown that the stable level of groundwater lies at a depth of 3.8–4.1 meters. The groundwater in this area poses moderate corrosion to concrete structures; it causes mild corrosion to the rebar in reinforced concrete structures when exposed to water for extended periods, and severe corrosion in environments with alternating dry and wet conditions. May I ask if corrosion protection measures for the foundation need to be considered during design?
In geological surveys, there should be a maximum water level or a level against buoyancy; if these levels are higher than the foundation, anti-corrosion measures should be taken
Is it necessary to consider corrosion protection regardless of whether the groundwater level is above the foundation depth?
Since the exploration revealed that the stable water table depth is between 3.8 and 4.1 meters, it may be much shallower during the wet season; measures against severe corrosion must therefore be taken.