A gradient anti-corrosion concrete foundation for transmission line towers

A technology for concrete foundations and power transmission lines, applied in the field of concrete foundations, can solve problems such as affecting the safe operation of concrete structures, failing to achieve anti-corrosion effects, etc., and achieve the effects of improving the anti-sulfate corrosion effect, ensuring safe and stable operation, and having a simple preparation process.

Active Publication Date: 2016-08-31
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the shrinkage, cracking and other defects of the concrete itself and the shrinkage, cracking, and aging of the outer anti-corrosion layer material, the above two methods often fail to achieve the ideal anti-corrosion effect. damage, seriously affecting the safe operation of concrete structures

Method used

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  • A gradient anti-corrosion concrete foundation for transmission line towers
  • A gradient anti-corrosion concrete foundation for transmission line towers
  • A gradient anti-corrosion concrete foundation for transmission line towers

Examples

Experimental program
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Effect test

Embodiment 1

[0018] A gradient anti-corrosion concrete foundation for a power transmission line pole tower, which is composed of a high impermeability waterproof layer (1), an outer anti-corrosion layer (2) and a reinforced concrete structure layer (3), and the high-impermeability waterproof layer (1) is located on the outer anti-corrosion layer (2 ), the outer anticorrosion layer (2) is located on the outer surface of the reinforced concrete structural layer (3).

[0019] The high impermeability and waterproof layer is a high impermeability and waterproof coating material with a thickness of 30mm sprayed by high chloride polyethylene.

[0020] The outer anti-corrosion layer has a thickness of 80mm and is made of the following raw materials in parts by mass: 25 parts of cement, 15.73 parts of mineral admixture, 50 parts of extra fine sand, 8 parts of water, 0.17 part of fiber, and 0.5 part of shrinkage reducing agent , 0.6 parts of naphthalene-based water reducer.

[0021] The concrete st...

Embodiment 2

[0025] A gradient anti-corrosion concrete foundation for a power transmission line pole tower, which is composed of a high impermeability waterproof layer (1), an outer anti-corrosion layer (2) and a reinforced concrete structure layer (3), and the high-impermeability waterproof layer (1) is located on the outer anti-corrosion layer (2 ), the outer anticorrosion layer (2) is located on the outer surface of the reinforced concrete structural layer (3).

[0026] The high impermeability and waterproof layer is a high impermeability and waterproof coating material with a thickness of 25mm sprayed by high chloride polyethylene.

[0027] The thickness of the outer anti-corrosion layer is 60 mm, and it is made of the following raw materials in parts by mass: 23 parts of cement, 16 parts of mineral admixture, 50 parts of ultra-fine sand, 10 parts of water, 0.15 part of fiber, and 0.45 part of shrinkage reducing agent , 0.4 parts of naphthalene-based water reducer.

[0028] The concre...

Embodiment 3

[0031] A gradient anti-corrosion concrete foundation for a power transmission line pole tower, which is composed of a high impermeability waterproof layer (1), an outer anti-corrosion layer (2) and a reinforced concrete structure layer (3), and the high-impermeability waterproof layer (1) is located on the outer anti-corrosion layer (2 ), the outer anticorrosion layer (2) is located on the outer surface of the reinforced concrete structural layer (3).

[0032] The high impermeability and waterproof layer is a high impermeability and waterproof coating material with a thickness of 20mm sprayed by high chloride polyethylene.

[0033] The thickness of the outer anti-corrosion layer is 50mm, and it is made of the following raw materials in parts by mass: 20 parts of cement, 15 parts of mineral admixture, 53.15 parts of ultra-fine sand, 11 parts of water, 0.15 part of fiber, and 0.4 part of shrinkage reducing agent , 0.3 parts of naphthalene-based water reducer.

[0034] The concr...

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Abstract

The invention discloses an electric transmission line pole and tower gradient anti-corrosion concrete foundation, which is formed by a high anti-permeability waterproof layer, an outer anti-corrosion layer and a reinforced concrete structure layer. The method provide by the invention is simple in preparation technology, low in cost, good in sulfate corrosion resistance, excellent in resistance to chloride ions and water permeability, and excellent in anti-frost property, the service life of foundation concrete can be greatly prolonged, meanwhile, the construction workability and the mechanical property of the concrete are also ensured by the action of low water cement ratio and additives, the crack resistance of the concrete is improved, and the durability of the foundation concrete is improved, so that the safe and reliable operation of an electric transmission line is ensured.

Description

【Technical field】 [0001] The invention relates to a concrete foundation, in particular to a gradient anticorrosion concrete foundation for transmission line towers in corrosive areas. 【Background technique】 [0002] The construction of some power transmission and transformation projects faces special geotechnical problems in saline soil, and the construction and operation environments faced by power transmission line projects are very complex. Due to the large amount of SO contained in soil and groundwater in corrosive areas 4 2- Ions, Cl - ions and Mg 2+ Ions and other aggressive ions, these aggressive ions penetrate into the foundation concrete of transmission line towers through penetration and diffusion, thereby causing corrosion damage to the concrete; at the same time, due to the harsh climate and environmental conditions in some areas, hot summer, dry and cold winter, and very little precipitation, Strong ultraviolet radiation, etc., will also accelerate the destr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/42C04B28/00
CPCC04B28/006E02D27/42
Inventor 程永锋李相国张琰丁士君王冠东谭洪波
Owner STATE GRID CORP OF CHINA
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