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Concrete Coated Pipe | Quality Assurance

Release Time: 2024-12-27
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What Is Concrete Coated Pipe

What is concrete coated pipe? As the name implies, refers to the pipe that is coated with a layer of concrete material on the outer or inner surface of the pipe. Such pipes combine the durability of concrete materials with the fluid transport properties of the pipe itself and have a wide range of applications.

Structural Features

1.Coating material: Concrete coating is usually composed of cement, aggregate (such as sand, stone) and water mixed in a certain proportion, and coated on the surface of the pipeline through a specific process.

2.Coating thickness: The coating thickness is determined according to the application requirements and design requirements, which can provide different degrees of protection and support.

3.Pipe substrate: it can be based on a variety of materials of pipe substrate, such as steel pipe, cast iron pipe, plastic pipe, etc.

Concrete Coated Pipe Figure

 

Specifications of Concrete Coated Pipe

Application  Used for natural gas, petroleum, water & sewage, and pipe systems
Size OD: 219mm~2020mm

WT: 5mm~25mm

LENGTH: 4mtr, 6mtr, 12mtr, 18mtr, 21mtr

Standard DIN 30670, DIN 30671, DIN 30678, SY/T0413-2002 etc.
Pipe tape Submerged Arc Welded (LSAW/SSAW), Electric Resistance Welded
End Plain End/Bevelled End, Burr Removed
Coating Thickness Three Layer Polyethylene Coating (2mm~4.5mm)
Packing Waterproof Paper wrapped, Steel Strips bundled, two tags on each bundle

In addition, concrete coated pipe, as a composite material pipe that combines the advantages of concrete and pipe, has various performance advantages:

1.Strong corrosion resistance: the concrete weight coatingcan effectively isolate the direct contact between the internal medium of the pipeline and the external environment, thus preventing the pipeline from being damaged by chemical or electrochemical corrosion. This is particularly important for pipelines conveying corrosive media such as certain acid-base solutions.

2.High wear resistance: the concrete coating has high hardness, which can effectively resist abrasion and scour and extend the service life of the pipeline. This is particularly evident when conveying fluids containing a large number of solid particles.

3.High compressive strength: This coating provides additional structural support, enabling the pipeline to withstand higher external pressure, suitable for buried or under certain pressure environment use.

4.Good thermal stability: it has good thermal stability and can maintain the stable operation of the pipeline in high or low temperature environment. This is of great significance for pipelines conveying high temperature steam or low temperature liquids.

5.Easy construction and maintenance: this kind of steel pipe is generally made in sections, which is convenient for transportation and construction. At the same time, due to its simple structure and easy maintenance, long-term operating costs are reduced.

 

Application Field And Maintenance Of Concrete Coated Pipe

1.Application Area

(1). Municipal engineering: concrete coated pipes are often used in drainage and sewage systems in municipal engineering. Its corrosion resistance, compression resistance and wear resistance enable the pipeline to withstand the erosion of the underground environment for a long time, ensuring the smooth operation of the drainage system.

(2). Water conservancy engineering: In water conservancy engineering, it is often used in irrigation, water transmission system. Its good sealing performance and durability ensure the efficient use of water resources and reduce water waste.

(3). Construction engineering: This coating pipe is used to transport concrete, mortar and other building materials in construction engineering. Its strong structure and wear resistance ensure the smooth progress of the construction process.

(4). Industrial pipeline: in the industrial field, it can transport corrosive media, high temperature media, etc. Its excellent corrosion resistance and high temperature resistance make the pipeline adaptable to various harsh working environments.

(5). Transportation facilities: In transportation facilities, it can be used in the drainage and ventilation system of Bridges, tunnels and other structures. Its stable performance and ease of construction make pipelines an indispensable part of transportation facilities.

2.Maintenance

(1). Regular inspection: Perform regular inspections of the pipe, including checking the integrity of the pipe, whether the coating is peeling off, whether the joints are loose, etc. Problems should be dealt with in time to prevent them from expanding.

(2). Clean the pipe: clean the debris and dirt in the pipe regularly to keep the pipe unblocked. For drainage and sewage pipes, they should be dredged regularly to prevent blockage.

(3). Anti-corrosion treatment: for the peeling or damaged pipe coating, anti-corrosion treatment should be carried out in time. It can be repaired by applying anticorrosive coating and wrapping anticorrosive materials to improve the corrosion resistance of the pipeline.

(4). Maintenance joints: For the joints of the pipe, the sealing performance and loosening should be checked regularly. For loose or damaged connectors, they should be replaced or tightened in time to ensure the tightness and stability of the pipeline.

(5). Prevent damage by external forces: set up warning signs around the pipeline to prevent damage to the pipeline caused by construction or other activities. At the same time, the protection measures for pipelines should be strengthened, such as setting up guardrail, protective net, etc.

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