High corrosion resistant marine cement cementing material and preparation method thereof

A cement glue and high-resistance technology, which is applied in the construction field, can solve problems such as aging, and achieve the effects of increasing density, reducing dry shrinkage, and reducing frictional resistance

Inactive Publication Date: 2020-01-17
广西云燕特种水泥建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These important concrete structures were severely degraded before they reached the end of their useful life and had to be repaired and rebuilt at huge cost

Method used

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  • High corrosion resistant marine cement cementing material and preparation method thereof

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Effect test

Embodiment 1

[0063] A high-corrosion-resistant marine cement cementitious material, including the following raw materials in parts by weight: 20 parts of wollastonite; 80 parts of sulfoaluminate cement; 30 parts of nano-type hydrotalcite; 20 parts of fiber; 80 parts of coral reef sand; 50 parts of polyacrylamide; 20 parts of modified acrylic emulsion; 10 parts of admixture.

[0064] The preparation method of the high-corrosion-resistant marine cement cementitious material is as follows:

[0065] (1) Mix wollastonite, sulphoaluminate cement, nano hydrotalcite, and coral reef sand in parts by weight, crush them, and then calcinate at 600-800°C;

[0066] (2) After calcination, put it into a mixing bucket, add fiber, polyacrylamide, modified acrylic emulsion, and admixture in parts by weight in sequence, and stir with a high-shear mixer; the shear speed is 500 rpm, and the time is 10 minutes;

[0067] (3) The obtained material is dried in a dryer at a temperature of 80°C for 30 minutes. After...

Embodiment 2

[0069] A high-corrosion-resistant marine cement gelling material, comprising the following raw materials in parts by weight: 25 parts of wollastonite; 100 parts of sulphoaluminate cement; 50 parts of nano-type hydrotalcite; 30 parts of fiber; 100 parts of coral reef sand; 60 parts of polyacrylamide; 30 parts of modified acrylic emulsion; 15 parts of admixture.

[0070] The preparation method of the high-corrosion-resistant marine cement cementitious material is as follows:

[0071] (1) Mix wollastonite, sulfoaluminate cement, nano hydrotalcite, and coral reef sand in parts by weight, crush them, and then calcinate at 800°C;

[0072] (2) After calcination, put it into a mixing bucket, add fiber, polyacrylamide, modified acrylic acid emulsion, and admixture in parts by weight in sequence, and stir with a high-shear mixer; the shear speed is 1000 rpm, and the time is 15 minutes;

[0073] (3) The obtained material is dried in a dryer at a temperature of 150°C for 60 minutes. Afte...

Embodiment 3

[0075] A high-corrosion-resistant marine cement gelling material, comprising the following raw materials in parts by weight: 23 parts of wollastonite; 90 parts of sulphoaluminate cement; 40 parts of nano-type hydrotalcite; 25 parts of fiber; 90 parts of coral reef sand; 55 parts of polyacrylamide; 25 parts of modified acrylic emulsion; 13 parts of admixture.

[0076] The preparation method of the high-corrosion-resistant marine cement cementitious material is as follows:

[0077] (1) Mix wollastonite, sulfoaluminate cement, nano hydrotalcite, and coral reef sand in parts by weight, crush them, and then calcinate at 700°C;

[0078] (2) After calcination, put it into a mixing bucket, add fiber, polyacrylamide, modified acrylic acid emulsion, and admixture in parts by weight in sequence, and stir with a high-shear mixer; the shear speed is 800 rpm, and the time is 13 minutes;

[0079] (3) The obtained material is dried in a dryer at a temperature of 100°C for 45 minutes. After t...

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Abstract

The invention relates to the construction field, and in particular relates to a high corrosion-resistant marine cement cementing material and a preparation method thereof, and the high corrosion-resistant marine cement cementing material comprises 20-25 parts of wollastonite; 80-100 parts of sulphoaluminate cement; 30-50 parts of nano-like hydrotalcite; 20-30 parts of fiber; 80-100 parts of coralreef sand; 50-60 parts of polyacrylamide; 20-30 parts of modified acrylic emulsion and 10-15 parts of additives; the invention aims to overcome the defects of the prior art and provide the high corrosion-resistant marine cement cementing material and the preparation method thereof. The high corrosion-resistant marine cement cementing material has the characteristics of good mechanical strength, durability and corrosion resistance, improved bending strength, improved cement density, better flocculation property, capability of reducing friction resistance between liquids, excellent impermeability, quick hardening, early strength, high later strength and the like.

Description

technical field [0001] The invention relates to the field of construction, in particular to a high-corrosion-resistant marine cement gelling material and a preparation method thereof. Background technique [0002] Cement concrete is a traditional building material, but traditional concrete with low strength and single function is far from meeting the requirements of large-scale structures under special conditions such as marine environments. Various marine structures built in the world today, such as cross-sea Bridges, port terminals, subsea tunnels, coastal highways, offshore oil drilling platforms, docks, etc. all use reinforced concrete as the main building and structural materials. my country's coastline is more than 32,000 kilometers long. With the rapid development of the national economy and the full development of infrastructure construction, the amount of concrete has increased sharply. raw materials. [0003] Marine concrete is widely used in seaports, wharfs, flo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C08F283/06C08F220/06C08F220/58C08F220/04C04B111/24
CPCC04B28/06C08F283/065C04B2111/24
Inventor 杨义黄芳蒙传刚农承战
Owner 广西云燕特种水泥建材有限公司
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