Of the conventional corrosion prevention methods for steel pipe piles for use as foundations for piled jetties and wharves, petrolatum lining has a comparative ad- vantage over others as after protection for application in tidal and splash zones. In this conventional petrolatum lining method, after coating the steel pipe with petrola- tum, a FRP covering is ordinarily used for additional protection. Problems with FRP, however, include deterioration by utlraviolet rays and susceptibility to crack- Ing on impact with floating matter.
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