CATHODE PROTECTION METHOD TO SAFEGUARD MARITIME STRUCTURES

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RAMESHT M.H.

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Seminar Paper

Paper Information

Seminar: INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS) PORTS & MARITIME ORGANIZATION
Year:1998 | Issue:3

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Information Seminar Paper

Title

CATHODE PROTECTION METHOD TO SAFEGUARD MARITIME STRUCTURES

Author(s)

RAMESHT M.H.

Keywords

CATHODE PROTECTION

ARMED CONCRETE

MARITIME STRUCTURES

Abstract

SINCE THE BEGINNING OF THE 20TH CENTURY, IMPLEMENTATION OF ARMED CONCRETE WAS SUGGESTED AS A CHOICE IN CONSTRUCTION PROJECTS. THE FEATURES OF HIGH STRENGTH, LONG LIFESPAN, EASE OF IMPLEMENTATION AND ALSO BEING ECONOMIC (COMPARED TO STEEL STRUCTURES ESPECIALLY AFTER WORLD WAR TWO AND THE LACK OF IRON) HAS CAUSED THE ARMED CONCRETE TO HAVE A VAST APPLICATION RANGE. IN MOST OF THESE APPLICATION CASES, THE STEEL ARMATURE OF CONCRETE WERE DURABLE WITH NO PROBLEM, SO IT IS OBVIOUS THAT THE CHANGE IN ENVIRONMENTAL CONDITIONS CAN CREATE SERIOUS DAMAGES CAUSED BY THE EROSION OF STEEL IN SOME CONCRETE STRUCTURES AND CONSTRUCTIONS. IF THE ALKALINE ENVIRONMENT CREATED WITHIN CONCRETE BECAUSE OF CEMENT HYDRATION THAT PROTECTS THE STEELS WITHIN THE ARMED CONCRETE FROM EROSION FADES BECAUSE OF SALT POLLUTION (AND CHLORIDE ATTACK), THE STEEL ARMATURE OF CONCRETE WILL FACE EROSION. THESE FACTORS IN FACT DETERMINE THE ELECTROCHEMICAL CONDITIONS THAT START THE EROSION PROCESS. IN ORDER TO STOP OR PREVENT THE EROSION FROM HAPPENING, A LOW CURRENT CAN BE PASSED THROUGH THE STEEL SO THAT THE ELECTRICAL POTENTIAL NEEDED FOR EROSION CAN BE OBTAINED IN NO PARTS OF THE STEEL ARMATURE. TODAY, THIS METHOD IS KNOWN AS THE CATHODE PROTECTION OF THE STEEL IN ARMED CONCRETE USED FOR MARITIME STRUCTURES WITHIN AN EROSIVE ENVIRONMENT, BECAUSE OF THE EXISTENCE OF CHLORIDE ION, DRY AND WET CYCLES, HIGH LEVELS OF HUMIDITY AND TEMPERATURE. THIS METHOD IS CONSIDERED AS A PROVED STRATEGY AND ITS INSTRUCTIONS AND PRINCIPLES ARE EXPLAINED IN INTERNATIONAL STANDARDS.

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APA: Copy

RAMESHT, M.H.. (1998). CATHODE PROTECTION METHOD TO SAFEGUARD MARITIME STRUCTURES. INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS). SID. https://sid.ir/paper/907724/en

Vancouver: Copy

RAMESHT M.H.. CATHODE PROTECTION METHOD TO SAFEGUARD MARITIME STRUCTURES. 1998. Available from: https://sid.ir/paper/907724/en

IEEE: Copy

M.H. RAMESHT, “CATHODE PROTECTION METHOD TO SAFEGUARD MARITIME STRUCTURES,” presented at the INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS). 1998, [Online]. Available: https://sid.ir/paper/907724/en

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