A kind of application method of architectural paint for surface protection of building structure

A technology of architectural coatings and architectural structures, which is applied in the field of architectural coatings for the surface protection of architectural structures, can solve the problems of coating performance degradation, high maintenance costs, and short service life, achieve high impermeability levels, avoid corrosive gas damage, Excellent bonding performance

Active Publication Date: 2022-07-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the general function of architectural coatings on the market is relatively single, which cannot better meet the diversified needs of building structures for protective materials, and the performance of the formed coating will decline rapidly after undergoing large deformation, resulting in a short service life. , generally only 5 to 10 years, and the later maintenance cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] An architectural coating, the composition of which is shown in the following table:

[0044] Table 1 Composition of an architectural coating

[0045] raw material Mass percentage (%) High calcium fly ash 10 Low calcium fly ash 43 water glass 14 sodium hydroxide 3 Quartz sand (80 mesh ~ 140 mesh) 14 Metakaolin (1000-1250 mesh) 2 PVA fiber (length 4mm~15mm, diameter 12µm~14µm) 1 water 13

[0046] Note: According to the content of CaO after combustion of raw coal, high calcium fly ash with CaO content >53%, medium calcium fly ash with CaO content of 46% to 53%, and low calcium fly ash with CaO content <46% fly ash.

[0047] The preparation method of the above-mentioned architectural coating comprises the following steps: mixing high-calcium fly ash, low-calcium fly ash, quartz sand and metakaolin, stirring, adding water glass, sodium hydroxide and water, stirring, and then adding PVA Fibers are stirred to obt...

Embodiment 2

[0049] An architectural coating, the composition of which is shown in the following table:

[0050] Table 2 Composition of an architectural coating

[0051] raw material Mass percentage (%) High calcium fly ash 10 Low calcium fly ash 42 water glass 14 sodium hydroxide 3 Quartz sand (80 mesh ~ 140 mesh) 15 Zeolite (150 mesh ~ 200 mesh) 2 PVA fiber (length 4mm~15mm, diameter 12µm~14µm) 1 water 13

[0052] Note: According to the content of CaO after combustion of raw coal, high calcium fly ash with CaO content >53%, medium calcium fly ash with CaO content of 46% to 53%, and low calcium fly ash with CaO content <46% fly ash.

[0053] The preparation method of the above-mentioned architectural coating comprises the following steps: mixing high-calcium fly ash, low-calcium fly ash, quartz sand and zeolite, stirring, adding water glass, sodium hydroxide and water, stirring, and then adding PVA fibers , and stirring to o...

Embodiment 3

[0055] An architectural coating, the composition of which is shown in the following table:

[0056] Table 3 Composition of an architectural coating

[0057] raw material Mass percentage (%) Mineral powder 48 silica fume 11 water glass 7 sodium hydroxide 2 Quartz sand (80 mesh ~ 140 mesh) 15 PVA fiber (length 4mm~15mm, diameter 12µm~14µm) 1 water 16

[0058] The preparation method of the above-mentioned architectural coating comprises the following steps: mixing mineral powder, silica fume and quartz sand, stirring, adding water glass, sodium hydroxide and water, stirring, adding PVA fiber, and stirring to obtain the architectural coating .

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Abstract

The invention discloses an application method of architectural paint for surface protection of building structures. The architectural coating of the present invention is composed of cementitious material, water glass, sodium hydroxide, quartz sand, metakaolin, zeolite, fiber and water, and the preparation method includes the following steps: mixing cementitious material, quartz sand, metakaolin and zeolite , stir, then add water glass, sodium hydroxide and water, stir, then add fiber, stir, that is, the architectural coating. The coating formed by the architectural coating of the present invention has ultra-high toughness and excellent strain hardening properties, can still provide protection for the structure or component substrate after being subjected to large deformation, the coating has a high impermeability level and excellent bonding performance, and can It is widely used in the surface protection of various building structures and their components, and can also be used for reinforcement and maintenance of building structures after aging and damage.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to an application method of architectural coatings for surface protection of building structures. Background technique [0002] Architectural coatings mainly refer to coatings used for building exterior walls, interior walls, ceilings, floors, etc., with functions such as protection, decoration, fire prevention, and anti-corrosion, which are closely related to the service life of building structures. At present, architectural coatings on the market generally have a single function, which cannot well meet the needs of building structures for diversified functions of protective materials, and the performance of the formed coatings will decline rapidly after being subjected to large deformation, resulting in a short service life. , generally only 5 to 10 years, the later maintenance costs are higher. [0003] Therefore, it is urgent to develop an architectural coating w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02
CPCC04B28/021C04B2111/00482C04B2201/50C04B12/04C04B22/062C04B14/06C04B14/047C04B16/0641
Inventor 熊焱吴迪林凯仁
Owner SOUTH CHINA UNIV OF TECH
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