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A coating process of epoxy polymer modified cement mortar

A technology of epoxy polymer and cement mortar, which is applied to the device, coating, special surface and other directions of coating liquid on the surface, which can solve the problems of great influence on the performance of steel pipe, influence on construction cost, and great influence on the overall performance of steel pipe. , to achieve the effect of shortening the construction period, improving the service life and fast construction

Active Publication Date: 2022-03-29
GUANGDONG NO 2 HYDROPOWER ENGINEERING COMPANY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in addition to the performance of the coating itself, the coating process also has a great influence on the performance of the steel pipe
The design thickness of the epoxy polymer modified cement mortar coating for steel pipe external anti-corrosion is generally not more than 1000μm (1mm). The control of spraying quality such as coating continuity and uniformity not only affects the construction cost, but also affects the overall performance of the steel pipe. very big

Method used

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  • A coating process of epoxy polymer modified cement mortar
  • A coating process of epoxy polymer modified cement mortar
  • A coating process of epoxy polymer modified cement mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0053] Embodiment 1-5 intermediate layer screening

[0054] The surface layer of embodiment 1-5 is made of 50 parts of bisphenol A epoxy resins, 5 parts of isooctyl acidic sulfur phospholipid octadecylamine, 25 parts of curing agent, 35 parts of cement, 5 parts of wetting agents, 6 parts of defoamers, Composed of 6 parts of dispersant.

[0055] The middle layer mortar formula of embodiment 1-5 is shown in the table below:

[0056] Table 2.

[0057]

[0058] Result detection

[0059] table 3.

[0060]

[0061]

[0062] Note: ○ means smooth, without cracks, bubbles, softening, peeling, etc.; △ means slight cracking, bubbles, softening or peeling, etc.; × means obvious surface defects.

[0063] It can be seen that Examples 1-5 all meet the production requirements, and the adhesion, corrosion resistance, impermeability, wear resistance, etc. are all better, and the overall tensile performance and impermeability of the middle layer of Example 1 are better than other ex...

Embodiment 6-9

[0065] Middle layer is identical with embodiment 1, and surface layer is as follows:

[0066] Table 4.

[0067]

[0068] Result detection

[0069] table 5.

[0070]

[0071]

[0072] Note: ○ means smooth, without cracks, bubbles, softening, peeling, etc.; △ means slight cracking, bubbles, softening or peeling, etc.; × means obvious surface defects.

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Abstract

The invention relates to an epoxy polymer modified cement mortar coating process, which relates to the technical field of construction engineering. The method includes the following steps: (1) cleaning the surface; (2) scraping polyurea paint on the steel pipe surface; (3) heating the steel pipe; (4) coating the middle layer of epoxy polymer modified cement mortar; (5) coating the ring Oxygen polymer modified cement mortar surface layer; (6) water cooling. In the present invention, the modified cement mortar is used for anti-corrosion on the outer wall of the inner steel pipe through the three-layer painting process, the adhesion is enhanced, the permeability coefficient is reduced, the service life of the anti-corrosion coating is improved, the requirements of large-scale projects are met, and the cost is reduced to the greatest extent. The construction period is short, and the outer layer has high wear resistance, which is convenient for transportation.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to an epoxy polymer modified cement mortar coating process. Background technique [0002] With the development of transportation and water transportation technology, many buildings in coastal provinces need to use steel pipe piles as pile sinking or platform foundations. Due to the harsh environmental corrosion conditions in sea areas, groundwater and seawater have chemical corrosion on steel pipe piles, typhoon, The large waves and torrents generated by the cold current hitting the sea surface carry the water body with high sand content with huge wave force and water flow to produce strong impact, friction and scratch on the surface of the steel pipe pile, which has catastrophic erosion on the surface of the steel pipe pile, and most large The design life of the project is very demanding, reaching 100 years. Therefore, in the steel pipe pile processing project, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14B05D3/00B05D5/00B05D5/08B05D1/36B05D1/38B05D7/00C04B28/04C04B111/20C04B111/27
CPCB05D7/14B05D7/58B05D7/584B05D3/002B05D3/007B05D5/00B05D5/08B05D1/36B05D1/38C04B28/04C04B2201/50C04B2201/10C04B2111/2038C04B2111/20C04B2111/27C04B2111/00612C04B24/281C04B24/04C04B14/06C04B24/32C04B24/42C04B24/383C04B24/003
Inventor 谢祥明姚楚康赵雅玲李娜娜郑莉黄红梅钟哲
Owner GUANGDONG NO 2 HYDROPOWER ENGINEERING COMPANY LTD