Concrete pile protection method used in marine environment

Abstract

The invention discloses a concrete pile protection method used in the marine environment. According to the method, firstly the surface of a concrete pile is polished, and then the surface of the pile is coated with an epoxy primer layer and an epoxy intermediate paint layer. The paint coating layer is wrapped with corrosion prevention tape after being cured and is further wrapped and fastened by a prefabricated armor, and the upper end and the lower end of the paint coating layer which is wrapped and fastened by the armor and the flange connection position are filled with in-water curing epoxy adhesives, and the airtightness of a whole protective system is improved. The concrete pile protection method is simple in structure, convenient to construct and remarkable in preservative effect, achieves long-acting protection of the concrete pile and guarantees that the service life of concrete engineering can be equal to or even be longer than the service life required by the design. By the adoption of the concrete pile protection method, it is guaranteed that the service life can reach over 20 years to 30 years, if the armor is destroyed by external force, the armor can be replaced quickly without destroying the whole system, and construction is very convenient in the later maintenance process.

Description

technical field [0001] The invention relates to a protection method for concrete piles in the marine environment, in particular to a covering protection method for concrete piles in tidal range areas and splash areas in the marine environment, and belongs to the technical field of concrete anti-corrosion engineering. Background technique [0002] With the rapid development of large-scale sea-crossing bridges and other seaport projects in China, the corrosion of reinforced concrete piles in the marine environment has been paid more and more attention. Especially in the harsh environment of seawater tidal range and splash area, the corrosion protection of concrete piles has been greatly challenged. The marine concrete engineering located in the ocean tidal range area and splash area not only involves the problem of alternating dry and wet, but also the problem of sea waves. Problems such as sputtering, water flow and sediment erosion, marine biological erosion, and foreign bod...

AI Technical Summary

Problems solved by technology

[0007] Although the moisture-curing paint coating protection system can effectively protect the surface of the concrete substrate, the coating has good toughness and decoration, and the aging speed is slow, but the adhesion between the coating and the concrete substrate is low, and the coating is easy to fall off and cause corrosion. failure; in addition, this method has a complicated process and a long coating period, and it is difficult to carry out construction in the environment of the splash zone and tidal range environment; and the durability of the paint coating in the marine environment is low, about 5 to 10 It will be completely repaired every year, and the repair cost is even higher than the first painting