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Visco-elastic material, Buried metal pipe Abstract. This paper describes an investigation of properties of 3 ACCMs, including cathodic disbonding, hot water dipping in, shear strength and bonding characteristic. According to standards of oil and gas pipeline, some experiments are carried to determine these characteristics. From these experimental results, each has his strong point for 3 ACCMs. Carbon-fiber epoxy is good at resistance on cathode disbonding, but heat-resistance, shear strength and bonding characteristic of visco-elastic material is better. So, carbon-fiber epoxy is fit for buried pipeline with cathodic protection. Visco-elastic material can be used in many cases under the precondition of not over cathodic protection. This research will provide the basis for the selection of anti-corrosive coating material of buried metal pipe in oilfield construction engineering.

Comparison on Properties of 3 Anti-corrosive Coating Materials for Outer Protection to Buried Metal Pipe