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A kind of anti-corrosion mortar for transmission line tower foundation

A technology for tower foundations and transmission lines, which is applied in the field of anti-corrosion mortar for transmission line tower foundations, can solve problems such as shortening the service life of concrete projects, affecting concrete structure functions, and cracking of concrete protective layers, achieving excellent water penetration resistance and improving interface Good matching, resistance to sulfate and chloride corrosion

Active Publication Date: 2020-03-06
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The erosion of the environment will cause the cracking of the concrete protective layer, and even destroy the concrete components in severe cases, thereby shortening the service life of the concrete project, which not only affects the function of the concrete structure, but also causes considerable economic losses in reconstruction and repair

Method used

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  • A kind of anti-corrosion mortar for transmission line tower foundation
  • A kind of anti-corrosion mortar for transmission line tower foundation
  • A kind of anti-corrosion mortar for transmission line tower foundation

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Embodiment Construction

[0042] Below in conjunction with example the present invention is described in detail.

[0043] Table 1 Mortar mix ratio

[0044]

[0045] Table 2 Mixing ratio of active admixture and shrinkage reducing agent in mortar

[0046]

[0047] The water reducer is a naphthalene-based water reducer with a solid content of 97.5%. The pH of water is 4.5.

[0048] The water used shall comply with the industry standard JGJ63-2006 "Water Standard for Concrete", and the water shall not contain harmful substances that affect the normal setting and hardening of cement.

[0049] The fine aggregate is superfine sand, the fineness modulus is 1.5-0.7, the average particle size is less than 0.25mm, and the apparent density is 2765kg / m 3 , Mud content ≤ 2.0.

[0050] Mineral powder is S95 mineral powder, specific surface area>0.4m 2 / g, 28d activity index>70%.

[0051] Fly ash is grade Ⅱ fly ash, specific surface area > 1m 2 / g, 28d compressive strength ratio> 60%, ignition loss ≤ 3.0%...

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Abstract

The present invention provides an electricity transmission line pole tower base anticorrosion mortar, which is prepared from the following raw materials by mass: 92-128 parts of a cementing material, 112-138 parts of fine aggregate, 24-30 parts of water, 1-1.4 parts of a water reducer, 0.18-0.33 part of a shrinkage agent, and 11.4125-17.745 parts of a filler. According to the present invention, the electricity transmission line pole tower base anticorrosion mortar has good sulfate etching resistance and good chloride etching resistance, and after the concrete pole tower base surface is coated with the electricity transmission line pole tower base anticorrosion mortar, the service life of the saline soil area electricity transmission line pole tower base is substantially prolonged, and the safe and stable operation of the electricity transmission line is ensured.

Description

technical field [0001] The invention relates to an anti-corrosion mortar, in particular to an anti-corrosion mortar for a power transmission line tower foundation. Background technique [0002] With the in-depth advancement of my country's western development strategy and the gradual implementation of the "West to East Power Transmission" project, more and more line projects need to pass through the saline soil or salt lake area in the northwest. Corrosive ions in saline soil areas in western my country, such as SO 4 2- , Cl - , Mg 2 + The concentration is high, and the climatic and environmental conditions are harsh, hot in summer, dry and cold in winter, very little precipitation, strong ultraviolet radiation, etc., which also accelerates the destruction of concrete structures. The joint effect of strong corrosive environment and harsh weather conditions leads to the damage and destruction speed of concrete is obviously higher than that of concrete under general envir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02C04B18/08C04B18/12C04B16/06C04B14/22
CPCY02W30/91
Inventor 程永锋李相国张琰徐朋辉谭洪波
Owner CHINA ELECTRIC POWER RES INST
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