Corrosion resistant PHC pipe pile and preparation method thereof

A PHC pipe pile, corrosion-resistant technology, applied in the field of pipe piles, can solve the problems of limited application and unsatisfactory corrosion resistance of PHC pipe piles, so as to improve fluidity, reduce land occupation, pollute the environment, and improve interface connection. performance effect

Inactive Publication Date: 2019-12-10
TIANJIN JIANCHENGJIYE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the corrosion resistance of the currently used PHC pipe piles is not ideal, which seriously limits its application in saline soil areas.

Method used

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  • Corrosion resistant PHC pipe pile and preparation method thereof
  • Corrosion resistant PHC pipe pile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A corrosion-resistant PHC pipe pile. The raw materials used for the preparation of concrete include the following components in parts by weight: 280 parts of cement, 425 parts of stone, 420 parts of sand, 300 parts of steel slag powder, and 15 parts of modified hollow glass microspheres. 165 parts of water, 1.5 parts of water reducer, 85 parts of fly ash, 32 parts of redispersible latex powder, 10 parts of anhydrous aluminum silicate, 2 parts of anionic surfactant, 20 parts of sodium hydroxide;

[0054] The preparation method of the steel slag powder includes the following steps: grinding the steel slag to obtain steel slag powder with a particle size of 0.2-1 mm; 0.7%; in parts by weight, the compound grinding aid includes 3 parts of triethanolamine, 1.5 parts of Yuanming powder and 2 parts of colloidal graphite powder;

[0055] The preparation method of the modified hollow glass microspheres includes the following steps: soaking the hollow glass microspheres in an aqu...

Embodiment 2

[0061] A corrosion-resistant PHC pipe pile. The raw materials used for the preparation of concrete include the following components in parts by weight: 310 parts of cement, 395 parts of stone, 455 parts of sand, 275 parts of steel slag powder, and 18 parts of modified hollow glass beads. 155 parts of water, 2.2 parts of water reducing agent, 80 parts of fly ash, 36 parts of redispersible latex powder, 8 parts of anhydrous aluminum silicate, 3.5 parts of anionic surfactant, 17 parts of sodium hydroxide;

[0062] The preparation method of the steel slag powder includes the following steps: grinding the steel slag to obtain steel slag powder with a particle size of 0.2-1 mm; 1%; in parts by weight, the compound grinding aid comprises 4 parts of triethanolamine, 2.5 parts of Yuanming powder and 1.5 parts of colloidal graphite powder;

[0063] The preparation method of the modified hollow glass microspheres comprises the following steps: soaking the hollow glass microspheres in an ...

Embodiment 3

[0069] A corrosion-resistant PHC pipe pile. The raw materials for preparing concrete include the following components in parts by weight: 340 parts of cement, 365 parts of stone, 480 parts of sand, 250 parts of steel slag powder, and 20 parts of modified hollow glass beads. 140 parts of water, 2.5 parts of water reducing agent, 75 parts of fly ash, 40 parts of redispersible latex powder, 5.5 parts of anhydrous aluminum silicate, 5.5 parts of anionic surfactant, 15 parts of sodium hydroxide;

[0070] The preparation method of the steel slag powder includes the following steps: grinding the steel slag to obtain steel slag powder with a particle size of 0.2-1 mm; 1.3%; in parts by weight, the compound grinding aid comprises 5.5 parts of triethanolamine, 3 parts of Yuanming powder and 1 part of colloidal graphite powder;

[0071] The preparation method of the modified hollow glass microspheres includes the following steps: soaking the hollow glass microspheres in an aqueous soluti...

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Abstract

The invention discloses a corrosion resistant PHC pipe pile and a preparation method thereof. Concrete is prepared from the raw materials in parts by weight: 280-340 parts of cement, 365-425 parts ofstone, 420-480 parts of sand, 250-300 parts of steel slag powder, 15-20 parts of modified hollow glass beads, 140-165 parts of water, 1.5-2.5 parts of a water reducing agent, 75-85 parts of fly ash, 32-40 parts of redispersible powder, 5.5-10 parts of anhydrous aluminium silicate, 2-5.5 parts of an anionic surfactant and 15-20 parts of sodium hydroxide. A silane coupling agent is adopted for modifying hollow glass beads to obtain the modified hollow glass beads; steel slag is subjected to grinding to obtain the steel slag powder, and during grinding, 0.7-1.3% of the mass of the steel slag of acompound grinding aid is added; and the compound grinding aid is prepared from the components in parts by weight: 3-5.5 parts of triethanolamine, 1.5-3 parts of anhydrous sodium sulphate and 1-2 parts of colloidal graphite powder. Preparation of the corrosion resistant PHC pipe pile comprises the steps that concrete preparation, concrete forming and maintenance of warm keeping. The corrosion resistant PHC pipe pile has the characteristics of high corrosion resistance and high strength simultaneously.

Description

technical field [0001] The invention relates to the technical field of pipe piles, in particular to a corrosion-resistant PHC pipe pile and a preparation method thereof. Background technique [0002] Affected by seawater intrusion and immersion, saline soil in coastal areas contains more salt, mainly chloride, sulfate and carbonate of potassium, sodium, magnesium and calcium. These salts cause relatively serious corrosion to currently used concrete based on Portland series cement, thus posing a serious threat to the durability of the existing concrete structures based on Portland series cement. [0003] PHC pipe piles, that is, prestressed high-strength concrete pipe piles, are the foundation forms of commonly used buildings (structures). However, the corrosion resistance of PHC pipe piles currently used is not ideal, which seriously limits its application in saline soil areas. Therefore, there is an urgent need to develop new PHC pipe piles with good corrosion resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/24C04B111/56
CPCC04B28/04C04B2201/50C04B2111/24C04B2111/56C04B14/02C04B14/06C04B18/142C04B14/22C04B18/08C04B22/08C04B22/062C04B24/122C04B22/147C04B14/024C04B24/42C04B2103/0057C04B2103/302C04B2103/402
Inventor 刘洁李刚杜志田刘永超崔凤祥陆鸿宇季振华卢杨
Owner TIANJIN JIANCHENGJIYE GRP
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