High-corrosion-resistance ocean engineering material and preparation method thereof

A technology for marine engineering and raw materials, applied in the field of high corrosion-resistant marine engineering materials and their preparation, can solve problems such as poor stability, paint corrosion, seawater corrosion, etc., to improve strength and durability, improve dispersion efficiency, and microstructure. Effect

Pending Publication Date: 2021-05-04
汪峻峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the advantages of fast construction, energy saving and environmental protection, and high earthquake resistance, steel structures are widely used in the field of engineering construction and become the most important form of construction. In the construction of water-related projects, it is easy to cause the steel structure to be easily damaged, seriously endangering the buildings using steel structures, and affecting the safety and durability of the buildings.
At present, when this problem occurs, the solution is to use paint to protect the steel structure with a protective layer to achieve corrosion resistance, seawater erosion resistance, fastening, etc. This is one of the most economical and effective ways to protect steel structures, but When the existing protective materials for steel structures are used in engineering, as the time in the marine environment prolongs, the paint is easy to corrode and fall off from the steel structure, and there are problems such as poor stability, cracks, seawater corrosion, etc.

Method used

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  • High-corrosion-resistance ocean engineering material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-corrosion marine engineering material, comprising the following raw materials in parts by weight: 40 parts of Portland cement, 5 parts of silica fume, 1 part of nano-silicon, 1 part of superplasticizer, 5 parts of densifying agent, 0.01 part of defoaming agent and 30 parts of fine aggregate;

[0023] Among them, nano-silicon is mixed by gas phase nano-silica and precipitated nano-silica with a mass ratio of 0.5:1.2; the superplasticizer is polycarboxylate water reducer; the densifying agent is vinyl acetate and Acrylate and fatty acid vinyl ester tripartite copolymer; defoamer is alkoxy modified fatty alcohol defoamer; fine aggregate is made of quartz sand and natural river sand with a mass ratio of 0.6:1.1, and the natural river sand The particle size is 30-100 mesh, including 30% of 30-50 mesh, 45% of 50-80 mesh, and 25% of 80-100 mesh.

[0024] The preparation method of the marine engineering material is as follows: at a stirring speed of 200rpm, mix portland...

Embodiment 2

[0026] A high-corrosion marine engineering material, comprising the following raw materials in parts by weight: 60 parts of Portland cement, 10 parts of silica fume, 3 parts of nano silicon, 2.5 parts of superplasticizer, 10 parts of compacting agent, 0.03 parts of defoaming agent and 50 parts of fine aggregate;

[0027] Among them, nano-silicon is formed by mixing gas-phase nano-silica and precipitated nano-silica with a mass ratio of 0.8:1.5, and the particle size of gas-phase nano-silica is 20nm, and the particle size of precipitated nano-silica is 10nm.

[0028] The superplasticizer is a mixture of polyethylene glycol polycondensate and modified sulfonated melamine polycondensate with a mass ratio of 1:1.

[0029] The compacting agent is a tripartite copolymer of ethylene, vinyl chloride and vinyl laurate.

[0030] The defoamer is alkane hydrocarbon modified fatty alcohol defoamer.

[0031] The fine aggregate is made by mixing quartz sand and natural river sand with a m...

Embodiment 3

[0033] A high-corrosion marine engineering material, comprising the following raw materials in parts by weight: 50 parts of Portland cement, 6 parts of silica fume, 2 parts of nano silicon, 1.5 parts of superplasticizer, 8 parts of densifying agent, 0.02 parts of defoaming agent and 40 parts of fine aggregate.

[0034] Among them, nano-silicon is formed by mixing gas-phase nano-silica and precipitated nano-silica with a mass ratio of 0.6:1.35. The particle size of gas-phase nano-silica is 10nm, and the particle size of precipitated nano-silica is 15nm.

[0035] The superplasticizer is a mixture of polyethylene glycol polycondensate and modified sulfonated melamine polycondensate with a mass ratio of 1:3.

[0036] The compacting agent is a tripartite copolymer of vinyl acetate, acrylate and fatty acid vinyl ester.

[0037] The defoamer is a silane-modified fatty alcohol defoamer.

[0038] The fine aggregate is made by mixing quartz sand and natural river sand with a mass rat...

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Abstract

The invention provides a high-corrosion-resistance ocean engineering material and a preparation method thereof. The ocean engineering material is prepared from, by weight, 40-60 parts of Portland cement, 5-10 parts of silica fume, 1-3 parts of nanometer silicon, 1-2.5 parts of a super plasticizer, 5-10 parts of a compacting agent, 0.01-0.03 part of a defoaming agent and 30-50 parts of a fine aggregate; and the Portland cement, the silica fume and the nano silicon are uniformly mixed through scientific preparation and are effectively compounded with a certain amount of the super plasticizer, the densifying agent, the defoaming agent and the fine aggregate, all the components cooperate with one another to play a role, the compressive strength of the ocean engineering material is remarkably improved and can reach 150 MPa or above, and the ocean engineering material has the characteristics of good compactness and high corrosion resistance and can be widely applied to the field of ocean engineering. The durability of the material in a marine environment is improved.

Description

technical field [0001] The invention relates to the technical field of marine engineering materials, in particular to a highly corrosion-resistant marine engineering material and a preparation method thereof. Background technique [0002] Steel structure construction technology has been widely used in our country, and it has been heavily invested in various engineering construction forms, and related technologies are more mature. Due to the advantages of fast construction, energy saving and environmental protection, and high earthquake resistance, steel structures are widely used in the field of engineering construction and become the most important form of construction. In the construction of water-related projects, it is easy to cause the steel structure to be easily damaged, which seriously endangers the buildings using steel structures, and affects the safety and durability of the buildings. At present, when this problem occurs, the solution is to use paint to protect t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/24C04B111/94
CPCC04B28/04C04B2111/24C04B2111/94C04B2201/50C04B18/146C04B14/06C04B22/02C04B2103/302C04B24/2688C04B24/026C04B24/28C04B24/166C04B24/42
Inventor 汪峻峰
Owner 汪峻峰
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