Seashore protection

Seashore environments are particularly aggressive. Humidity is often high and the wind carries droplets of brine, salt crystals, and abrasive sand grains, all of which reduce or destroy protective films on exposed metal surfaces. 

The exposed portion of the anchor at the concrete interface and the embedded portion of the anchor are vulnerable to corrosion from infiltration of moisture, air, and other corrosive elements. Anchorage near waterways and seashores requires additonal corrosion protection against wet-dry cycles and excessive salts. Deicing salts in... 

Hexibility, permeability and ability to cross-flow of water make natural geotextiles a good material to protect riverbanks and embankments from attack by floodwater and seashores from attack by wave surge. The favourable circumstances of natural geotextiles on the environmental are significantly more important wherever slopes to be protected are in contact with water. 

A unique condition encountered on land that has been built up from coral deposits is the presence of blowholes, fissures and caves, which augments the penetration of seawater to areas remote from the actual seashore. Knowing that seawater makes for a very extensive, uniform, low resistivity "ground bed" for cathodic protection anodes, the above condition facilitates the design of unique cathodic protection systems. 

---