Corrosion-resistant PHC pipe pile

A PHC pipe pile and corrosion-resistant technology, which is applied in the field of corrosion-resistant PHC pipe piles, can solve the problems of complex process, increase of ground slag and ground fly ash storage tanks and metering equipment, and achieve low production cost

Active Publication Date: 2015-01-21
广东宏基管桩有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production method has a complex process and requires additional storage tanks and metering equipment for pulverized slag and pulverized fly ash

Method used

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  • Corrosion-resistant PHC pipe pile
  • Corrosion-resistant PHC pipe pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A corrosion-resistant PHC pipe pile, the weight ratio of each component material of the concrete is:

[0025] Cementitious material 1, water 0.28, sand 1.58, stone 2.92,

[0026] Water reducing agent 0.023, organic rust inhibitor HQ 0.005;

[0027] The organic rust inhibitor HQ accounts for 0.5% of the weight of the cementitious material.

[0028] In each cubic concrete, the amount of cementitious material is 430kg.

[0029] In the amount of the cementitious material, the proportion by weight of 42.5 grade Portland cement is 70%; the specific surface area is 400-420m 2 The proportion by weight of finely ground sand / kg is 30%.

[0030] Among the concrete component materials, the sand is medium sand; the stone is crushed stone with a particle size of 5-25 mm; the water reducer is a naphthalene series high-efficiency water reducer.

[0031] Its production method comprises the following steps:

[0032] (1) stirring; taking the cementitious material, adding water, mediu...

Embodiment 2

[0038] A corrosion-resistant PHC pipe pile, the weight ratio of each component material of the concrete is:

[0039] Cementitious material 1, water 0.28, sand 1.58, stone 2.92,

[0040] Water reducing agent 0.023, organic rust inhibitor HQ 0.01;

[0041] The organic rust inhibitor HQ accounts for 1% by weight of the cementitious material.

Embodiment 3

[0043] A corrosion-resistant PHC pipe pile, the weight ratio of each component material of the concrete is:

[0044] Cementitious material 1, water 0.28, sand 1.58, stone 2.92,

[0045] Water reducer 0.023, organic rust inhibitor HQ 0.03;

[0046] The organic rust inhibitor HQ accounts for 3% by weight of the cementitious material.

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Abstract

The invention discloses a corrosion-resistant PHC pipe pile. The corrosion-resistant PHC pipe pile is characterized by comprising the following components in parts by weight: 1 part of a binding material, 0.28 part of water, 1.58 parts of sand, 2.92 parts of stones, 0.023 part of a water reducer, 0.005-0.03 part of an organic corrosion inhibitor HQ; and the organic corrosion inhibitor HQ accounts for 0.5%-3% of weight of the binding material. The corrosion-resistant PHC pipe pile has the advantages that (1) the technologic processes of an existing pipe pile do no need to be changed, and no production equipment is added; (2) production process parameters of the existing pipe pile do not need to be changed; (3) the production cost is low; and (4) an existing pipe pile production line can be used for producing national standard of PHC pipe piles, and can also be used for producing the corrosion-resistant PHC pipe pile.

Description

technical field [0001] The invention relates to a pretensioned prestressed concrete pipe pile, in particular to a corrosion-resistant PHC pipe pile. Background technique [0002] Due to the existence of corrosive geological conditions, especially in coastal areas, Cl-corrosive geological conditions in seawater are relatively common, and engineering requires the corrosion resistance of concrete pipe piles. [0003] For the corrosion resistance of pipe piles, the main method currently used is: mixing finely ground slag, finely ground fly ash, etc., to reduce the content of CaO in concrete, so as to reduce the corrosion of Cl- on pipe pile concrete. This production method has a complicated process, and needs to increase storage tanks and metering equipment for grinding fine slag and grinding fly ash. Contents of the invention [0004] The object of the present invention is to provide a corrosion-resistant PHC pipe pile, which can be used in corrosive geological conditions, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/06C04B14/02
Inventor 强卫肖英男喻益国明维姜正平何耀晖
Owner 广东宏基管桩有限公司
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