阅读说明：本技术 一种墙面腻子结构及墙面腻子施工方法 (Wall surface putty structure and wall surface putty construction method ) 是由 方季屏 梁东 余志伟 苏丽君 吴兆烽 于 2021-09-13 设计创作，主要内容包括：本发明公开了一种墙面腻子结构及墙面腻子施工方法,该方法包括：在墙体表面施抹底腻子层,底腻子层采用石膏基腻子；在底腻子层抹平初凝前,将裁好的加强网铺贴在底腻子层外表面,采用抹子将加强网压入底腻子层的腻子面层,并使得底腻子层的加强网与底腻子层粘结,可以提升墙面的抵抗变形能力,提升墙面装饰效果；进一步地,该方法还可以包括：在底腻子层表面施抹中腻子层,在中腻子层表面施抹面腻子层,底腻子层采用低强度的石膏基腻子,中腻子层和面腻子层采用高强度的水泥基腻子,底腻子层作为高强度墙体和高强度中腻子层的应力释放滑动层,可以进一步减少或消除墙体变形带动的腻子层变形,提升墙面装饰效果。(The invention discloses a wall putty structure and a wall putty construction method, wherein the method comprises the following steps: applying a bottom putty layer on the surface of the wall, wherein the bottom putty layer is gypsum-based putty; before the bottom putty layer is leveled and initially set, the cut reinforcing net is laid on the outer surface of the bottom putty layer, the reinforcing net is pressed into the putty surface layer of the bottom putty layer by a trowel, and the reinforcing net of the bottom putty layer is bonded with the bottom putty layer, so that the deformation resistance of the wall surface can be improved, and the wall surface decoration effect can be improved; further, the method may further include: the middle putty layer is smeared on the surface of the bottom putty layer, the surface putty layer is smeared on the surface of the middle putty layer, the bottom putty layer adopts low-strength gypsum-based putty, the middle putty layer and the surface putty layer adopt high-strength cement-based putty, and the bottom putty layer is used as a stress release sliding layer of the high-strength wall body and the high-strength middle putty layer, so that the deformation of the putty layer driven by the deformation of the wall body can be further reduced or eliminated, and the wall decoration effect is improved.)

1. A wall putty structure, comprising: the setting is at the compound putty layer of wall body surface, compound putty layer is at least including setting up the end putty layer of wall body surface, end putty layer adopts gypsum base putty, end putty layer surface is laid and is pasted the enhancement net.

2. The wall putty structure of claim 1, wherein the wire diameter of the reinforcing mesh of the bottom putty layer is 0.1-0.2 mm, the pore diameter is 1.0-2.0 mm, and the angle between the grid lines of the reinforcing mesh of the bottom putty layer and the length direction of the wall surface is 30-60 degrees; and/or the gypsum-based putty is 0.5-1.0 mm thick and has the bonding strength of more than or equal to 0.3 MPa.

3. The wall putty structure of claim 2, further comprising: the middle putty layer is arranged outside the bottom putty layer and is made of cement-based putty with the thickness of 0.5-0.8 mm and the bonding strength of more than or equal to 0.5 MPa; a reinforcing net is laid on the outer surface of the middle putty layer, the diameter of the reinforcing net of the middle putty layer is 0.05-0.1 mm, and the diameter of the reinforcing net of the middle putty layer is 0.5-1.0 mm; and grid lines of the reinforcing net of the middle putty layer and grid lines of the reinforcing net of the bottom putty layer are symmetrically arranged in the opposite direction.

4. The wall putty structure of claim 3, further comprising: the surface putty layer is arranged outside the middle putty layer, and the surface putty layer is made of cement-based putty with the thickness of 0.2-0.6 mm and the bonding strength of more than or equal to 0.6 MPa.

5. The wall putty structure of claim 4 wherein the strength of the bottom putty layer is lower than the strength of the middle putty layer and the face putty layer; the reinforcing mesh adopts a galvanized steel wire mesh or a stainless steel wire mesh; and/or spraying nano silicon penetrating curing agent penetrating fluid on the cement-based putty of the surface putty layer through a high-pressure airless sprayer so that the curing agent penetrating fluid penetrates into the cement-based putty layer.

6. The wall putty structure of claim 4 or 5, characterized in that the wall putty structure further comprises: the plastering layer is arranged between the wall body and the bottom putty layer, and the decorative layer is arranged outside the surface putty layer.

7. A wall putty construction method is characterized by comprising the following steps:

applying a bottom putty layer on the surface of the wall, wherein the bottom putty layer is gypsum-based putty;

before the floating initial set of end putty layer, will cut out reinforcing mesh spread paste end putty layer surface adopts the trowel will the reinforcing mesh is impressed the putty surface course on end putty layer, and makes the reinforcing mesh and the bonding of end putty layer on end putty layer.

8. The wall putty construction method of claim 7 further comprising:

after the bottom putty layer is dried completely, applying a middle putty layer on the surface of the bottom putty layer, wherein the middle putty layer is made of cement-based putty with the thickness of 0.5-0.8 mm and the bonding strength of more than or equal to 0.5 MPa;

well putty layer is floating before the initial set, will cut out the enhancement network shop paste well putty layer surface, and make the enhancement network and well putty layer of well putty layer bond, the gridlines of the enhancement network of well putty layer with the gridlines opposite direction symmetry of the enhancement network of end putty layer is placed.

9. The wall putty construction method of claim 8 further comprising:

after the intermediate putty layer is dried completely, applying a surface putty layer on the surface of the intermediate putty layer, wherein the surface putty layer is made of cement-based putty with the thickness of 0.2-0.6 mm and the bonding strength of more than or equal to 0.6 MPa;

after the surface putty layer is dried, spraying nano silicon penetrating and curing agent penetrating fluid by using a high-pressure airless sprayer, so that the curing agent penetrating fluid penetrates into the cement-based putty of the surface putty layer, wherein the spraying pressure is 10-25 MPa, a spray gun of the high-pressure airless sprayer is perpendicular to a wall surface, the distance between the spray gun and the wall surface is 300-400 mm/s, and the running speed of the spray gun is 300-400 mm/s.

10. The wall putty construction method as claimed in claim 9, wherein the wire diameter of the reinforcing mesh of the bottom putty layer is 0.1-0.2 mm, the pore diameter is 1.0-2.0 mm, the wire diameter of the reinforcing mesh of the middle putty layer is 0.05-0.1 mm, and the pore diameter is 0.5-1.0 mm; the angle between the grid lines of the reinforcing mesh of the bottom putty layer and the length direction of the wall surface is 30-60 degrees; and/or the gypsum-based putty is 0.5-1.0 mm thick and has the bonding strength of more than or equal to 0.3 MPa.

Technical Field

The invention relates to the technical field of wall decoration, in particular to a wall putty structure and a wall putty construction method.

Background

At present, emulsion paint wall surfaces are generally adopted for interior decoration, and the emulsion paint has the advantages of attractive appearance, environmental protection, ventilation, convenience in construction, low cost and the like. However, in the actual use process, the emulsion paint wall surface often cracks and is damaged, and the normal use function is seriously influenced, and the important reason is caused by the insufficient hardness of the putty base layer and the poor wall surface deformation resistance. Accordingly, there is a need for an improved wall putty layer.

Disclosure of Invention

The invention mainly aims to provide a wall surface putty structure and a wall surface putty construction method, aiming at improving the deformation resistance of a wall surface and improving the wall surface decoration effect.

In order to achieve the above object, an embodiment of the present invention provides a wall putty structure, including: the setting is at the compound putty layer of wall body surface, compound putty layer is at least including setting up the end putty layer of wall body surface, end putty layer adopts gypsum base putty, end putty layer surface is laid and is pasted the enhancement net.

Optionally, the diameter of the reinforcing mesh of the bottom putty layer is 0.1-0.2 mm, the diameter of the reinforcing mesh of the bottom putty layer is 1.0-2.0 mm, and the angle between grid lines of the reinforcing mesh of the bottom putty layer and the length direction of the wall surface is 30-60 degrees; and/or the gypsum-based putty is 0.5-1.0 mm thick and has the bonding strength of more than or equal to 0.3 MPa.

Optionally, the composite putty layer further comprises: the middle putty layer is arranged outside the bottom putty layer and is made of cement-based putty with the thickness of 0.5-0.8 mm and the bonding strength of more than or equal to 0.5 MPa; a reinforcing net is laid on the outer surface of the middle putty layer, the diameter of the reinforcing net of the middle putty layer is 0.05-0.1 mm, and the diameter of the reinforcing net of the middle putty layer is 0.5-1.0 mm; and grid lines of the reinforcing net of the middle putty layer and grid lines of the reinforcing net of the bottom putty layer are symmetrically arranged in the opposite direction.

Optionally, the composite putty layer further comprises: the surface putty layer is arranged outside the middle putty layer, and the surface putty layer is made of cement-based putty with the thickness of 0.2-0.6 mm and the bonding strength of more than or equal to 0.6 MPa.

Optionally, the strength of the bottom putty layer is lower than that of the middle putty layer and the face putty layer; the reinforcing mesh adopts a galvanized steel wire mesh or a stainless steel wire mesh; and/or spraying nano silicon penetrating curing agent penetrating fluid on the cement-based putty of the surface putty layer through a high-pressure airless sprayer so that the curing agent penetrating fluid penetrates into the cement-based putty layer.

Optionally, the wall putty structure further comprises: the plastering layer is arranged between the wall body and the bottom putty layer, and the decorative layer is arranged outside the surface putty layer.

In addition, the embodiment of the invention also provides a wall putty construction method, which comprises the following steps:

applying a bottom putty layer on the surface of the wall, wherein the bottom putty layer is gypsum-based putty;

before the floating initial set of end putty layer, will cut out reinforcing mesh spread paste end putty layer surface adopts the trowel will the reinforcing mesh is impressed the putty surface course on end putty layer, and makes the reinforcing mesh and the bonding of end putty layer on end putty layer.

Optionally, the method further comprises:

after the bottom putty layer is dried completely, applying a middle putty layer on the surface of the bottom putty layer, wherein the middle putty layer is made of cement-based putty with the thickness of 0.5-0.8 mm and the bonding strength of more than or equal to 0.5 MPa;

well putty layer is floating before the initial set, will cut out the enhancement network shop paste well putty layer surface, and make the enhancement network and well putty layer of well putty layer bond, the gridlines of the enhancement network of well putty layer with the gridlines opposite direction symmetry of the enhancement network of end putty layer is placed.

Optionally, the method further comprises:

after the intermediate putty layer is dried completely, applying a surface putty layer on the surface of the intermediate putty layer, wherein the surface putty layer is made of cement-based putty with the thickness of 0.2-0.6 mm and the bonding strength of more than or equal to 0.6 MPa;

after the surface putty layer is dried, spraying nano silicon penetrating and curing agent penetrating fluid by using a high-pressure airless sprayer, so that the curing agent penetrating fluid penetrates into the cement-based putty of the surface putty layer, wherein the spraying pressure is 10-25 MPa, a spray gun of the high-pressure airless sprayer is perpendicular to a wall surface, the distance between the spray gun and the wall surface is 300-400 mm/s, and the running speed of the spray gun is 300-400 mm/s.

Optionally, the diameter of the reinforcing mesh of the bottom putty layer is 0.1-0.2 mm, the diameter of the reinforcing mesh of the middle putty layer is 1.0-2.0 mm, and the diameter of the reinforcing mesh of the middle putty layer is 0.05-0.1 mm, and the diameter of the reinforcing mesh of the middle putty layer is 0.5-1.0 mm; the angle between the grid lines of the reinforcing mesh of the bottom putty layer and the length direction of the wall surface is 30-60 degrees; and/or the gypsum-based putty is 0.5-1.0 mm thick and has the bonding strength of more than or equal to 0.3 MPa.

The wall putty structure and the wall putty construction method provided by the embodiment of the invention have the following advantages that: the composite putty layer is arranged on the surface of a wall body, the composite putty layer at least comprises a bottom putty layer arranged on the outer surface of the wall body, gypsum-based putty is adopted on the bottom putty layer, a reinforcing net is paved on the outer surface of the bottom putty layer, the reinforcing net has extremely high tensile strength and deformability, the reinforcing net can be composed of numerous independent, inclined and high-strength tiny grids, and the grids have extremely large deformability; further, the composite putty layer can also comprise: the middle putty layer and the surface putty layer are made of low-strength gypsum-based putty, the middle putty layer and the surface putty layer are made of high-strength cement-based putty, and the bottom putty layer is used as a stress release sliding layer of the high-strength wall body, the plastering layer and the high-strength middle putty layer, so that the deformation of the putty layer driven by the deformation of the wall body can be further reduced or eliminated, and the wall decoration effect is improved.

Drawings

FIG. 1 is a schematic structural diagram of a wall putty according to an embodiment of the present invention;

FIG. 2 is a schematic view of a reinforcing mesh structure of a bottom putty layer in an embodiment of the present invention;

FIG. 3 is a schematic view of a reinforcing mesh structure of a middle putty layer in an embodiment of the present invention;

FIG. 4 is a schematic flow chart of an embodiment of the wall putty construction method.

Description of the reference numerals

Reference numerals	Name (R)	Reference numerals	Name (R)
				1	Wall body	2	Plastering layer
3	Bottom putty layer	4	Middle putty layer
				5	Face putty layer	6	Finishing layer

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The main solution of the embodiment of the invention is as follows: the bottom putty layer adopts low-strength gypsum-based putty, the middle putty layer and the surface putty layer adopt high-strength cement-based putty, and the bottom putty layer is used as a high-strength wall body, a plastering layer and a high-strength stress release sliding layer of the middle putty layer, so that the deformation of the putty layer driven by the deformation of the wall body can be reduced or eliminated, and the wall decoration effect is improved. In addition, the reinforcing mesh has been laid to bottom putty layer and well putty layer surface, the reinforcing mesh has very high tensile strength and deformability, the reinforcing mesh can be independent by the countless, the slope, the small net of high strength is constituteed, because the net has very big deformability, consequently, the reinforcing mesh has very big deformability, thereby make the putty layer have very big deformability, turn into very little not visible microcrack with great crack, and then promote the deformation resistance of wall, promote wall decorative effect.

In the embodiment of the invention, the phenomena of cracking and damage of the latex paint wall surface frequently occur in the actual use process, and the normal use function is seriously influenced, and the important reason is caused by insufficient hardness of the putty base layer and poor wall surface deformation resistance.

Therefore, the embodiment of the invention provides a solution, improves the wall putty layer, improves the deformation resistance of the wall surface, and improves the wall surface decoration effect.

Specifically, referring to fig. 1, fig. 1 is a schematic structural diagram of the wall putty according to the embodiment of the present invention.

As shown in fig. 1, the embodiment of the present invention provides a wall putty structure, which is applied to interior wall putty for example.

This wall putty structure includes: the composite putty layer is arranged on the surface of the wall body 1, the composite putty layer is at least arranged on the bottom putty layer 3 on the outer surface of the wall body 1, the bottom putty layer 3 adopts gypsum-based putty, and the reinforcing net is paved on the outer surface of the bottom putty layer 3.

Wherein, the reinforcing mesh has very high tensile strength and deformability, and the reinforcing mesh can be independent by the countless, the slope, the small net of high strength is constituteed, because the net has very big deformability, consequently, the reinforcing mesh has very big deformability to make the putty layer have very big deformability, change great crack into the unseen microcrack of minimum flesh eye, and then promote the deformation resistance ability of wall, promote wall decorative effect. Wherein, end putty layer 3 adopts low-strength gypsum base putty, and end putty layer 3 is as the stress release sliding layer of high strength wall body 1, can reduce or eliminate the putty layer deformation that wall body 1 warp the drive, promotes wall decorative effect.

More specifically, as an implementation mode, the diameter of the reinforcing mesh of the bottom putty layer 3 may be 0.1 to 0.2mm, the diameter of the reinforcing mesh may be 1.0 to 2.0mm, and as shown in fig. 2, the angle between the grid lines of the reinforcing mesh of the bottom putty layer 3 and the length direction of the wall surface is 30 to 60 °.

More specifically, as an implementation mode, the thickness of the gypsum-based putty can be 0.5-1.0 mm, and the bonding strength is more than or equal to 0.3 MPa.

Further, as shown in fig. 1, fig. 2 and fig. 3, the composite putty layer further includes: the middle putty layer 4 is arranged outside the bottom putty layer 3, and the middle putty layer 4 can be cement-based putty with the thickness of 0.5-0.8 mm and the bonding strength of more than or equal to 0.5 MPa;

further, as an implementation mode, a reinforcing net is laid on the outer surface of the middle putty layer 4, the silk diameter of the reinforcing net of the middle putty layer 4 can be 0.05-0.1 mm, and the pore diameter can be 0.5-1.0 mm; the grid lines of the reinforcing net of the middle putty layer 4 and the grid lines of the reinforcing net of the bottom putty layer 3 are symmetrically arranged in the opposite direction, as shown in fig. 2 and 3.

The reinforcing net has extremely high tensile strength and deformability, the reinforcing net is composed of numerous independent, inclined and high-strength tiny grids, and the grids have extremely high deformability, so that the reinforcing net has extremely high deformability, a putty layer has extremely high deformability, and large cracks are converted into extremely small invisible microcracks. The grid lines of the reinforcing net of the middle putty layer 4 and the grid lines of the reinforcing net of the bottom putty layer 3 are symmetrically arranged in the opposite direction, so that the deformation capability of the putty layer can be further improved.

Further, as an embodiment, the composite putty layer further includes: the surface putty layer 5 is arranged outside the middle putty layer 4, and the surface putty layer 5 can be cement-based putty with the thickness of 0.2-0.6 mm and the bonding strength of more than or equal to 0.6 MPa.

Wherein the strength of the bottom putty layer 3 is lower than the strength of the middle putty layer 4 and the face putty layer 5.

Further, as an embodiment, the reinforcing mesh may be a galvanized steel mesh or a stainless steel mesh.

Furthermore, as an implementation mode, nano silicon penetrating curing agent penetrating fluid is sprayed on the cement-based putty of the face putty layer through a high-pressure airless sprayer, so that the curing agent penetrating fluid penetrates into the cement-based putty layer, and the strength and the hardness of the putty can be greatly improved.

Further, as an embodiment, the wall putty structure further includes: a plastering layer 2 arranged between the wall 1 and the bottom putty layer 3, and a finishing layer 6 arranged outside the face putty layer 5.

The principle of the putty layer in the embodiment of the invention is explained in detail as follows:

sliding layer principle: the bottom putty layer 3 adopts low-strength gypsum-based putty, and the middle putty layer 4 and the surface putty layer 5 adopt high-strength cement-based putty. The bottom putty layer 3 is used as a stress release sliding layer of the high-strength wall body 1, the plastering layer 2 and the high-strength middle putty layer 4, and can reduce or eliminate the deformation of the putty layer driven by the deformation of the wall body 1.

Principle of high-flexibility putty layer: the reinforcing net is a galvanized steel wire net or a stainless steel wire net, the wire diameter is 0.05-0.2 mm, the aperture is 0.5-2.0 mm, grid lines of the reinforcing net and the length direction of the wall surface form an inclined direction, and the angle is 30-60 degrees. The reinforcing net has extremely high tensile strength and deformability, the reinforcing net is composed of numerous independent, inclined and high-strength tiny grids, and the grids have extremely high deformability, so that the reinforcing net has extremely high deformability, a putty layer has extremely high deformability, and large cracks can be converted into tiny micro cracks invisible to the naked eyes.

Principle of high hardness putty layer: the cement-based putty with weak alkalinity, high strength and high hardness is adopted, and the curing agent penetrating fluid is penetrated into the cement-based putty layer by high-pressure airless spraying of nano silicon penetrating curing agent penetrating fluid. The cement-based putty always performs slow C-S-H hydration reaction which cannot be completely performed under natural conditions and always has a large amount of free calcium ions (Ca)²⁺) There is no reaction and the hardness still has the potential to be improved. Active Silicate Ion (SiO) contained in nano silicon penetrating curing agent penetrating fluid₄ ^2-) Reacting with unreacted free calcium ions in the cement-based putty to generate calcium silicate hydrate (C-S-H) so as to ensure that calcium ions (Ca) in the putty²⁺) Further participate in the reaction, greatly improve the strength and hardness of the putty.

Meanwhile, the crystal generated by the calcium silicate hydrate gel in the air holes of the putty effectively blocks the air holes in the putty and reduces the flow path of water, thereby preventing solid and liquid impurities from entering the interior of the putty, increasing the chemical substance corrosion resistance of the putty, but allowing water vapor to freely pass through, keeping the 'breathing' function of the putty and reducing the harm caused by surface delamination or foaming.

Each putty layer in the composite putty layer of the present embodiment is described in detail below:

bottom putty layer 3: the sliding layer is gypsum-based putty with the thickness of 0.5-1.0 mm and the bonding strength of more than or equal to 0.3 MPa. Paving a reinforcing net on the surface of the bottom putty layer 3, wherein the wire diameter of the reinforcing net is 0.1-0.2 mm, the pore diameter is 1.0-2.0 mm, the angle between the grid direction of the reinforcing net and the length direction of the wall surface is 30-60 degrees, before the bottom putty layer 3 is trowelled and initially set, paving the cut reinforcing net on the surface of the putty layer, ensuring that the reinforcing net and the bottom putty layer 3 are not bonded, and then slightly pressing the reinforcing net into the putty surface layer of the bottom putty layer 3 by using a trowel;

and a middle putty layer 4: the cement-based putty with the thickness of 0.5-0.8 mm and the bonding strength of more than or equal to 0.5MPa is adopted. After the bottom putty layer 3 is dried completely, the construction of the middle putty layer 4 can be started. Paving a reinforcing net on the surface of the middle putty layer 4, wherein the diameter of the reinforcing net is 0.05-0.1 mm, the diameter of the reinforcing net is 0.5-1.0 mm, the reinforcing net of the middle putty layer 4 and the reinforcing net of the bottom putty layer 3 are symmetrically placed in the opposite direction, and the construction method of the reinforcing net is the same as that of the reinforcing net;

and (3) a face putty layer 5: the cement-based waterproof putty with the thickness of 0.2-0.6 mm and the bonding strength of more than or equal to 0.6MPa is adopted. After the middle putty layer 4 is dried completely, the construction of the face putty layer 5 can be started. After the construction of the surface putty layer 5 is finished and the surface putty layer is dried completely, a high-pressure airless spraying machine is adopted to spray the nano silicon penetration curing agent penetrating fluid, the spraying pressure is 10-25 MPa, the spraying gun is perpendicular to the wall surface, the distance between the spraying gun and the wall surface is 300-400 mm, and the running speed of the spraying gun is 300-400 mm/s, so that the curing agent penetrating fluid can obtain powerful kinetic energy to penetrate into putty pores of the surface putty layer 5, even if the curing agent penetrating fluid penetrates into the cement-based putty of the surface putty layer 5, the hardness and the strength of the surface putty are greatly enhanced.

It should be noted that the wall surface putty structure of the embodiment is also suitable for the parts such as outer wall putty, inner and outer wall plastering and the like. And will not be described in detail herein.

According to the scheme, the deformation resistance of the wall surface is improved, and the wall surface decoration effect is improved.

In addition, as shown in fig. 4, an embodiment of the present invention further provides a wall putty construction method, including the following steps:

step S1, applying a bottom putty layer on the surface of the wall, wherein the bottom putty layer is gypsum-based putty;

step S2, before the floating initial set of end putty layer, will cut out the enhancement network and spread and paste end putty layer surface, adopt the trowel will the enhancement network is impressed the putty surface course on end putty layer, and make the enhancement network and the bonding of end putty layer on end putty layer.

Wherein, the reinforcing mesh has very high tensile strength and deformability, and the reinforcing mesh can be independent by the countless, the slope, the small net of high strength is constituteed, because the net has very big deformability, consequently, the reinforcing mesh has very big deformability to make the putty layer have very big deformability, change great crack into the unseen microcrack of minimum flesh eye, and then promote the deformation resistance ability of wall, promote wall decorative effect. Wherein, the bottom putty layer adopts low-strength gypsum-based putty, and the bottom putty layer is as the stress release sliding layer of high strength wall body, can reduce or eliminate the putty layer deformation that the wall body warp the drive, promotes wall decorative effect.

More specifically, as an implementation mode, the diameter of the reinforcing mesh of the bottom putty layer may be 0.1 to 0.2mm, the diameter of the reinforcing mesh of the bottom putty layer may be 1.0 to 2.0mm, and as shown in fig. 2, the angle between the grid lines of the reinforcing mesh of the bottom putty layer and the length direction of the wall surface is 30 to 60 °.

More specifically, as an implementation mode, the thickness of the gypsum-based putty can be 0.5-1.0 mm, and the bonding strength is more than or equal to 0.3 MPa.

Further, as shown in fig. 4, the method further includes:

step S3, after the bottom putty layer is dried completely, applying a middle putty layer on the surface of the bottom putty layer, wherein the middle putty layer is made of cement-based putty with the thickness of 0.5-0.8 mm and the bonding strength of more than or equal to 0.5 MPa;

step S4, before the intermediate putty layer is leveled and initially set, the cut reinforcing mesh is laid and pasted on the outer surface of the intermediate putty layer, the reinforcing mesh of the intermediate putty layer is bonded with the intermediate putty layer, and grid lines of the reinforcing mesh of the intermediate putty layer and grid lines of the reinforcing mesh of the bottom putty layer are symmetrically arranged in the opposite direction.

The silk diameter of the reinforcing net of the middle putty layer can be 0.05-0.1 mm, and the pore diameter can be 0.5-1.0 mm; the grid lines of the reinforcing mesh of the middle putty layer and the grid lines of the reinforcing mesh of the bottom putty layer are symmetrically arranged in the opposite direction, as shown in fig. 2 and 3.

The reinforcing net has extremely high tensile strength and deformability, the reinforcing net is composed of numerous independent, inclined and high-strength tiny grids, and the grids have extremely high deformability, so that the reinforcing net has extremely high deformability, a putty layer has extremely high deformability, and large cracks are converted into extremely small invisible microcracks. The grid lines of the reinforcing net of the middle putty layer and the grid lines of the reinforcing net of the bottom putty layer are symmetrically arranged in the opposite direction, so that the deformation capability of the putty layer can be further improved.

Further, as shown in fig. 4, the method further includes:

step S5, after the middle putty layer is dried completely, applying a surface putty layer on the surface of the middle putty layer, wherein the surface putty layer is made of cement-based putty with the thickness of 0.2-0.6 mm and the bonding strength of more than or equal to 0.6 MPa;

and step S6, after the face putty layer is dried, spraying nano-silicon penetrating curing agent penetrating fluid by using a high-pressure airless sprayer, so that the curing agent penetrating fluid penetrates into the cement-based putty layer of the face putty layer, wherein the spraying pressure is 10-25 MPa, a spray gun of the high-pressure airless sprayer is perpendicular to the wall surface, the distance between the spray gun and the wall surface is 300-400 mm, and the running speed of the spray gun is 300-400 mm/S.

Wherein the strength of the bottom putty layer is lower than that of the middle putty layer and the face putty layer.

Further, as an embodiment, the reinforcing mesh may be a galvanized steel mesh or a stainless steel mesh.

The cement-based putty is coated with nano silicon penetrating and curing agent penetrating fluid through high-pressure airless spraying, so that the curing agent penetrating fluid penetrates into the cement-based putty layer, and the strength and hardness of the putty can be greatly improved.

Further, as an embodiment, the method may further include: and arranging a plastering layer between the wall body and the bottom putty layer, and arranging a decorative layer outside the surface putty layer.

Compared with the prior art, the wall surface putty structure and the wall surface putty construction method provided by the embodiment of the invention have the advantages that the wall surface putty structure comprises: the composite putty layer is arranged on the surface of a wall body, the composite putty layer at least comprises a bottom putty layer arranged on the outer surface of the wall body, gypsum-based putty is adopted on the bottom putty layer, a reinforcing net is paved on the outer surface of the bottom putty layer, the reinforcing net has extremely high tensile strength and deformability, the reinforcing net can be composed of numerous independent, inclined and high-strength tiny grids, and the grids have extremely large deformability; further, the composite putty layer can also comprise: the middle putty layer and the surface putty layer are made of low-strength gypsum-based putty, the middle putty layer and the surface putty layer are made of high-strength cement-based putty, and the bottom putty layer is used as a stress release sliding layer of the high-strength wall body, the plastering layer and the high-strength middle putty layer, so that the deformation of the putty layer driven by the deformation of the wall body can be further reduced or eliminated, and the wall decoration effect is improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.