阅读说明：本技术 一种木结构构件防火保护的方法 (Method for fireproof protection of wood structural member ) 是由 陈玲珠 许清风 王明谦 冷予冰 张富文 陈溪 于 2019-09-17 设计创作，主要内容包括：本发明涉及一种木结构构件防火保护的方法,包括以下步骤：S1、进行木构件表面处理,除去构件表面的杂物,进行工作面打磨并掸去产生的木屑；S2、工作面上敷饰一层防腐漆；S3、待防腐漆完全晾干后,涂抹第一层灰料,并刮平修饰平整；第一层灰料是由防腐漆和石膏粉按质量1:1配制而成；S4、在第一层灰料上均匀铺设一层麻布,并用板子轧压蓬松的部分；S5、涂抹第二层灰料；第二层灰料是由防腐漆、石膏粉和瓦灰按质量1:1:1配制而成；S6、静置,待灰料干透后操底漆；S7、次日涂面漆。本发明明显提高木结构构件耐火性能,提升木结构建筑的防火安全性能；采用无机灰料,成本降低,施工简便,步骤较少,经济合理,行之有效。(The invention relates to a method for protecting a wood structural member from fire, which comprises the following steps: s1, performing surface treatment on the wood member, removing impurities on the surface of the member, polishing the working surface and removing generated wood chips by dusting; s2, coating a layer of anticorrosive paint on the working surface; s3, after the anticorrosive paint is completely dried, coating a first layer of ash, and leveling and decorating; the first layer of ash material is prepared from anticorrosive paint and gypsum powder according to the mass ratio of 1: 1; s4, uniformly paving a layer of linen on the first layer of ash material, and rolling and pressing the fluffy part by using a plate; s5, coating a second layer of ash; the second layer of ash material is prepared from anticorrosive paint, gypsum powder and tile ash according to the mass ratio of 1:1: 1; s6, standing, and after the ash materials are dried completely, priming the paint; and S7, coating a finish on the next day. The invention obviously improves the fire resistance of the wood structural member and improves the fire safety performance of the wood structural building; the inorganic ash is adopted, so that the cost is reduced, the construction is simple and convenient, the steps are fewer, and the method is economical, reasonable and effective.)

1. A method of fire protection of a timber structural member comprising the steps of:

S1, performing surface treatment on the wood component (1), removing impurities on the surface of the component, polishing the working surface and removing generated wood chips by dusting;

s2, coating a layer of anticorrosive paint (2) on the working surface;

S3, after the anticorrosive paint is completely dried, coating a first layer of ash (3), and leveling and decorating; the first layer of ash (3) is prepared from anticorrosive paint and gypsum powder according to the mass ratio of 1: 1;

S4, uniformly paving a layer of linen (4) on the first layer of ash (3), and rolling and pressing the fluffy part by using a plate;

S5, coating a second layer of ash (5); the second layer of ash (5) is prepared from anticorrosive paint, gypsum powder and tile ash according to the mass ratio of 1:1: 1;

S6, standing for several days, and after the ash materials are dried completely, operating the primer (6);

and S7, finishing the top coat on the next day after finishing the priming operation.

2. A method of fire protection of a wood structural member as defined in claim 1, wherein: the anticorrosive paint (2) is a self-drying liquid coating prepared by diluting natural raw lacquer harvested from lacquer trees with an organic solvent after cleaning, filtering, dehydrating, activating and oxidative polymerizing.

3. a method of fire protection of a wood structural member as defined in claim 1, wherein: the primer (6) is prepared from anticorrosive paint, iron oxide red powder and a diluent according to the mass ratio of 2:1: 1.

4. a method of fire protection of a wood structural member as defined in claim 1, wherein: the finish paint (7) is prepared from anticorrosive paint and tung oil according to the mass ratio of 1: 1.

5. A method of fire protection of a wood structural member as defined in claim 1, wherein: the surface of the primer (6) and the surface of the finish paint (7) is smooth and clean after being coated, and no wrinkles are left.

Technical Field

The invention relates to a method for protecting a wood structural member from fire, and belongs to the technical field of civil engineering.

background

Most of the traditional wooden structure buildings with more and long-standing histories are important historical heritages in China. Because the wood is a combustible material, the fire load in the traditional wood structure building is large, and after thousands of years of wind and sunshine, the wood is dehydrated to form dry wood which is easy to ignite, so that the fire risk of the traditional wood structure building is great, a fire protection method is required to be adopted, and the fire resistance of the wood structure component is improved. The surfaces of wooden beams and wooden column members in the traditional palace buildings and temple buildings are usually processed by adopting the plaster, and the manufacturing process of the plaster typically comprises the processes of five ashes, four ashes, six ashes, and the like, and is mainly formed by mixing organic matters and inorganic matters such as brick ash, blood materials, lime, flour, raw tung oil, and the like. However, materials such as oil, blood and the like need to be decocted on site, and the ground layer process has more construction procedures and more complex construction process.

the wood structure building has the advantages of simple construction, short construction period, energy conservation, environmental protection, good earthquake resistance and the like, and the modern wood structure gets more and more attention and development in China along with the development of the fast growing technology of the wood and the increase of the quantity of imported wood. The existing wood structure building is high in height, and the fire endurance requirement of the wood structure member is high. The common method for spraying fireproof flame-retardant coating can only improve the combustion performance of wood, and has very limited improvement on the fire resistance limit.

Therefore, a new method is required to simply and effectively improve the fire resistance of the wood structural member.

Disclosure of Invention

the invention aims to provide a method for fireproof protection of a wood structural member, which adopts inorganic ash to simply and effectively improve the fire resistance limit of the wood structural member so as to improve the fire resistance of the wood structural member.

The invention adopts the following technical scheme:

A method for protecting a wood structural member from fire includes S1, performing surface treatment on the wood structural member 1, removing impurities on the surface of the member, polishing a working surface and removing generated wood chips by dusting; s2, coating a layer of anticorrosive paint 2 on the working surface; s3, after the anticorrosive paint is completely dried, coating a first layer of ash 3, and leveling and decorating; the first layer of ash 3 is prepared from anticorrosive paint and gypsum powder according to the mass ratio of 1: 1; s4, uniformly paving a layer of linen 4 on the first layer of ash 3, and rolling and pressing the fluffy part by using a plate; s5, coating a second layer of ash 5; the second layer of ash 5 is prepared from anticorrosive paint, gypsum powder and tile ash according to the mass ratio of 1:1: 1; s6, standing for several days, and after the ash materials are completely dried, operating the primer 6; and S7, finishing the top coat 7 the next day after finishing the priming.

Preferably, the anticorrosive paint 2 is a self-drying liquid coating prepared by diluting natural raw lacquer harvested from a lacquer tree with an organic solvent after cleaning, filtering, dehydrating, activating and oxidative polymerizing.

Preferably, the primer 6 is prepared from anticorrosive paint, iron oxide red powder and a diluent according to the mass ratio of 2:1: 1.

Preferably, the finish paint 7 is prepared from anticorrosive paint and tung oil according to the mass ratio of 1: 1.

Preferably, the surface of the primer 6 and the surface of the finish paint 7 is smooth and clean after being coated, and no wrinkles are left.

the invention has the beneficial effects that:

1) the method can delay the carbonization time of the wood, reduce the carbonization speed of the wood, obviously improve the fire resistance of the wood structural member and improve the fire safety performance of the wood structural building;

2) The method adopts inorganic ash, is convenient to construct, economic, reasonable and effective.

3) The first layer of ash material is prepared from anticorrosive paint and gypsum powder according to the mass ratio of 1:1, the second layer of ash material is prepared from anticorrosive paint, gypsum powder and tile ash according to the mass ratio of 1:1:1, both the fireproof performance and the firmness are considered, and the design is ingenious.

Drawings

Fig. 1 is a cross section of a wood structural member and a partially enlarged view thereof.

Fig. 2 is a sectional view of the center axis of the wood structural member.

The right part of the figure is an enlarged view of a distance in cross section.

In the figure, 1, wood columns, 2, anticorrosive paint, 3, a first layer of ash, 4, linen, 5, a second layer of ash, 6, primer and 7, finish paint.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

As shown in fig. 1-2, firstly, the surface of the wood member is treated, impurities on the surface of the member are removed, the working surface is ground, and the generated wood chips are brushed off; a layer of anticorrosive paint 2 is coated and decorated on the working surface; after the anticorrosive paint 2 is completely dried, coating a first layer of ash 3, and leveling and decorating; uniformly laying a layer of linen 4 on the ash material, and rolling the fluffy part by using a plate; coating a second layer of ash 5 immediately after finishing the ramie; standing for two days, and operating the primer 6 after the ash materials are dried completely; and finishing paint 7 the next day after finishing the priming paint 6. The anticorrosive paint is a self-drying liquid coating prepared by diluting natural raw lacquer harvested from a lacquer tree with an organic solvent after the natural raw lacquer is subjected to filtration, dehydration, activation and oxidative polymerization.

The first layer of ash material is prepared from anticorrosive paint and gypsum powder according to the mass ratio of 1: 1.

the second layer of ash material is prepared from anticorrosive paint, gypsum powder and tile ash according to the mass ratio of 1:1: 1.

The primer is prepared from anticorrosive paint, iron oxide red powder and a diluent according to the mass ratio of 2:1: 1.

The finish paint is prepared from anticorrosive paint and tung oil according to the mass ratio of 1: 1.

The surface of the primer and the surface paint after being coated is smooth and clean without wrinkles.

The method for the fireproof protection of the wood structure member can obviously improve the fireproof performance of the wood structure member and improve the fireproof safety performance of a wood structure building; the method adopts inorganic ash, so that the cost is reduced, the construction is simple and convenient, the steps are fewer, and the method is economic, reasonable and effective; the first layer of ash material is prepared from anticorrosive paint and gypsum powder according to the mass ratio of 1:1, the second layer of ash material is prepared from anticorrosive paint, gypsum powder and tile ash according to the mass ratio of 1:1:1, both the fireproof performance and the firmness are considered, and the design is ingenious.

The foregoing is a preferred embodiment of the present invention, and various changes or modifications may be made by those skilled in the art without departing from the general concept of the invention, and such changes or modifications are intended to be within the scope of the invention as defined by the appended claims.