阅读说明：本技术 乳胶漆内墙基体交接节点处抗放结合防裂体系及施工方法 (Anti-release combined anti-cracking system at joint of latex paint inner wall matrix and construction method ) 是由 缴志刚 孙启刚 谢启贵 于 2020-07-22 设计创作，主要内容包括：本发明的乳胶漆内墙基体交接节点处抗放结合防裂体系及施工方法属于建筑施工技术领域,本发明在基体交接处的基层和底层砂浆找平层之间由内到外依次设置热镀锌钢丝网、聚合物抗裂砂浆和聚合物弹性涂料。热镀锌钢丝网结构坚固,整体性强,抗腐蚀能力高,比起玻纤网格布,热镀锌钢丝网更能够适应不同类型的墙面,起到“抗”的作用。聚合物弹性涂料具有高弹性、能够覆盖因热胀冷缩产生的小于8mm的裂缝,聚合物弹性涂料能够使的墙面开裂产生的拉拔力得到很好的释放,起到了“放”的作用。正是由于热镀锌钢丝网的“抗”与聚合物弹性涂料的“放”有效结合,使得墙面基体交接处不会出现裂缝。(The invention discloses a release-resistant combined anti-cracking system at a joint of an emulsion paint inner wall substrate and a construction method, belonging to the technical field of building construction. The hot-dip galvanized steel wire mesh has firm structure, strong integrity and high corrosion resistance, and can be more suitable for wall surfaces of different types than glass fiber mesh cloth and hot-dip galvanized steel wire mesh, thereby playing the role of resisting. The polymer elastic coating has high elasticity, can cover cracks smaller than 8mm generated by thermal expansion and cold contraction, can well release the drawing force generated by wall surface cracking, and plays a role in releasing. The 'resistance' of the hot galvanized steel wire mesh is effectively combined with the 'release' of the polymer elastic coating, so that no crack appears at the joint of the wall surface matrix.)

1. An anti-release combined anti-cracking system at a joint of latex paint inner wall matrix is characterized in that: a hot galvanized steel wire mesh (3), polymer anti-cracking mortar (4) and polymer elastic coating (5) are sequentially arranged between a base layer (1) and a bottom mortar leveling layer (2) at the joint of a substrate from inside to outside.

2. The release-resistant, bonding and crack-resistant system at the joint of latex paint inner wall substrate bodies according to claim 1, characterized in that: the widths of the hot-dip galvanized steel wire mesh (3), the polymer anti-crack mortar (4) and the polymer elastic coating (5) are not less than 300mm, the thickness of the polymer anti-crack mortar (4) is not less than 5mm, and the thickness of the polymer elastic coating (5) is not less than 1 mm.

3. The release-resistant, bonding and crack-resistant system at the joint of latex paint inner wall substrate bodies according to claim 1, characterized in that: and glass fiber gridding cloth (6) is fully hung on the outer side of the bottom mortar leveling layer (2).

4. The release-resistant, bonding and crack-resistant system at the joint of latex paint inner wall substrate bodies according to claim 1, characterized in that: the male and female corners of the joint of the substrate are reinforced by PVC corner protecting lines.

5. The construction method of the release-resistant and anti-cracking system at the joint of the latex paint inner wall matrix according to any one of claims 1 to 4, characterized in that: a hot-dip galvanized steel wire mesh (3) is laid between a base layer (1) and a bottom layer mortar leveling layer (2) at the joint of a base body by adopting polymer anti-cracking mortar (4), and then a polymer elastic coating (5) is coated.

6. The construction method of the anti-release combination anti-cracking system at the joint of the latex paint inner wall substrate according to claim 5, characterized in that: the polymer elastic paint (5) is brushed for at least two times.

7. The construction method of the anti-release combination anti-cracking system at the joint of the latex paint inner wall substrate according to claim 5, characterized in that: and glass fiber gridding cloth (6) is fully hung on the outer side of the bottom mortar leveling layer (2).

8. The construction method of the anti-release bonding anti-cracking system at the joint of the latex paint inner wall substrate according to claim 7, characterized in that: the outside of glass fiber net cloth (6) sets up surface course mortar screed-coat (7), water proof putty screed-coat (8) and latex paint layer (9) from inside to outside.

Technical Field

The invention relates to the technical field of building construction, in particular to a release-resistant combined anti-cracking system at a joint of latex paint inner wall matrix and a construction method.

Background

When the indoor latex paint wall surface is constructed, the joint of the base body is usually reinforced by adopting glass fiber gridding cloth. Because the water absorption rates of different materials at the joint of the base body are different, the base body is easy to crack, and the glass fiber mesh cloth does not have enough strength to resist the force which generates the crack, the joint of the base body of the traditional indoor emulsion paint wall surface is easy to crack, the construction quality can not be ensured, and a large amount of manpower and material resources are wasted in the later-stage reworking and maintenance.

Disclosure of Invention

The invention aims to provide a release-resistant combined anti-cracking system at a joint of an inner wall substrate of an emulsion paint and a construction method, and aims to solve the technical problems that the joint of the substrates of the traditional indoor emulsion paint wall surface is easy to crack, the construction quality cannot be guaranteed, and a large amount of manpower and material resources are wasted in later-stage reworking and maintenance.

In order to solve the technical problems, the invention provides an anti-release combined anti-cracking system at a joint of an emulsion paint inner wall substrate.

Preferably, the widths of the hot galvanized steel wire mesh, the polymer anti-cracking mortar and the polymer elastic coating are not less than 300mm, the thickness of the polymer anti-cracking mortar is not less than 5mm, and the thickness of the polymer elastic coating is not less than 1 mm.

Preferably, glass fiber gridding cloth is fully hung on the outer side of the bottom mortar leveling layer.

Preferably, the male and female corners of the joint of the base body are reinforced by PVC corner protecting lines.

In addition, the invention also provides a construction method of the anti-release combined anti-cracking system at the joint of the latex paint inner wall substrate, wherein the hot galvanized steel wire mesh is laid by adopting polymer anti-cracking mortar between the base layer and the bottom layer mortar leveling layer at the joint of the substrates, and then the polymer elastic coating is coated.

Preferably, the polymeric elastic coating is brushed no less than twice.

Preferably, glass fiber gridding cloth is fully hung on the outer side of the bottom mortar leveling layer.

Preferably, the surface layer mortar leveling layer, the waterproof putty leveling layer and the latex paint layer are arranged on the outer side of the glass fiber gridding cloth from inside to outside.

Compared with the prior art, the invention has the characteristics and beneficial effects that:

(1) when the traditional indoor latex paint wall surface is constructed, glass fiber gridding cloth is usually adopted at the joint of the matrix for reinforcement. The invention adopts polymer anti-crack mortar to lay hot galvanized steel wire mesh between the base layer and the bottom mortar leveling layer at the joint of the base body, and then coats polymer elastic paint. The hot-dip galvanized steel wire mesh has firm structure, strong integrity and high corrosion resistance, and can be more suitable for wall surfaces of different types than glass fiber mesh cloth and hot-dip galvanized steel wire mesh, thereby playing the role of resisting. The polymer elastic coating has high elasticity, can cover cracks smaller than 8mm generated by thermal expansion and cold contraction, can well release the drawing force generated by wall surface cracking, and plays a role in releasing. The 'resistance' of the hot galvanized steel wire mesh is effectively combined with the 'release' of the polymer elastic coating, so that no crack appears at the joint of the wall surface matrix.

(2) The glass fiber gridding cloth is fully hung on the outer side of the bottom mortar leveling layer to serve as a defense line, so that cracks can be prevented. In addition, the internal and external corner parts are reinforced, so that the anti-cracking function is further improved.

(3) The traditional emulsion paint wall surface anti-cracking measures are upgraded, and the manpower, material resources and financial resources consumed by later-stage reworking maintenance are greatly saved. Meanwhile, compared with the traditional method, the method does not increase much construction cost in the early stage, is economic and reliable, and ensures the construction quality of the emulsion paint wall surface to the maximum extent.

Drawings

FIG. 1 is a schematic view of the anti-cracking system at the junction of different walls.

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1.

FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1.

The attached drawings are marked as follows: 1-base layer, 2-bottom layer mortar leveling layer, 3-hot galvanizing steel wire mesh, 4-polymer anti-cracking mortar, 5-polymer elastic coating, 6-glass fiber mesh cloth, 7-surface layer mortar leveling layer, 8-water-resistant putty leveling layer and 9-latex paint layer.

Detailed Description

In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention is further described below.

The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-3, the release-resistant combined anti-cracking system for the latex paint interior wall substrate joint is characterized in that a hot-galvanized steel wire mesh 3, polymer anti-cracking mortar 4 and polymer elastic paint 5 are sequentially arranged between a base layer 1 and a bottom mortar leveling layer 2 at the substrate joint from inside to outside. And glass fiber gridding cloth 6 is fully hung on the outer side of the bottom layer mortar leveling layer 2. The male and female corners of the joint of the substrate are reinforced by PVC corner protecting lines.

The widths of the hot galvanized steel wire mesh 3, the polymer anti-crack mortar 4 and the polymer elastic coating 5 are not less than 300mm, the thickness of the polymer anti-crack mortar 4 is not less than 5mm, and the thickness of the polymer elastic coating 5 is not less than 1 mm.

According to the construction method of the anti-release combined anti-cracking system at the joint of the latex paint inner wall substrate, the hot galvanized steel wire mesh 3 is laid between the base layer 1 and the bottom layer mortar leveling layer 2 at the joint of the substrates by adopting the polymer anti-cracking mortar 4, and then the polymer elastic paint 5 is coated. The polymer elastic coating 5 is brushed not less than twice. And glass fiber gridding cloth 6 is fully hung on the outer side of the bottom layer mortar leveling layer 2. And the outer side of the glass fiber gridding cloth 6 is provided with a surface layer mortar leveling layer 7, a waterproof putty leveling layer 8 and a latex paint layer 9 from inside to outside.

Taking a certain project as an example, the process flow comprises base cleaning → anti-cracking reinforcement → straightening, sleeving, finding gauge → applying bottom layer gypsum → applying top layer gypsum to fully hang glass fiber mesh cloth → applying water-resistant putty once → applying water-resistant putty twice → applying bottom layer coating → applying surface layer coating.

Construction process

1. And (3) field paying-off: a horizontal elevation 1m control line, a vertical line, a flatness line, a squareness line and a ceiling elevation line.

2. Cleaning a base layer: clean dust and dirt, and repair structure.

3. Anti-cracking reinforcing measures:

firstly, laying a 300mm wide hot-dip galvanized steel wire mesh 3 in polymer anti-crack mortar 4;

secondly, the polymer elastic paint 5 is fully brushed at the joint of the base body for at least two times, the thickness of the polymer elastic paint 5 is not less than 1.0mm, and the brushing width is not less than 300 mm.

4. Dotting and punching ribs: and (3) punching the mortar into ribs, wherein the width of the vertical marking ribs is 3cm, the height of the vertical marking ribs is consistent with the height of the wall, and the distance is 1.2-1.5 m.

5. And coating bottom layer mortar, coating overlay mortar and fully hanging glass fiber gridding cloth.

6. Reinforcing the internal and external corners: the internal and external corners of the wall surface are straightened and PVC corner protecting lines are added.

7. And (3) scraping the waterproof putty leveling layer for two times (8): the 2mm thick waterproof putty is leveled in two layers, and is polished by abrasive paper after being dried.

8. Brushing a bottom coating: the wall is painted with a first latex paint layer 9.

9. Brushing surface layer paint: and brushing the second time of the latex paint layer 9 on the wall surface.

The traditional anti-cracking method and the method have almost the same cost in the implementation process, but a better anti-cracking effect is difficult to achieve at the joint of different matrixes, so that a large amount of later-stage maintenance and rework are caused, and the acceptance qualification rate of the emulsion paint wall surface is difficult to control particularly for projects with more joint parts of the matrixes. By using the project of the method, through statistical investigation of specially-assigned persons, the one-time acceptance qualification rate of the emulsion paint wall surface is up to 96.7%, and the effect is better.

The method is mainly applied to more latex paint wall surface projects, the method is compiled into a technical cross bottom of latex paint wall surface construction and is issued to workers, preferably, a template wall is firstly made on site, the workers are explained on site on the template wall, and each worker can be guaranteed to fully understand the system. The problems that the overlapping width of the galvanized steel wire mesh is not enough, the painting width of the waterproof coating is not enough, the glass fiber mesh cloth is not compacted and the like in the construction process are avoided. Meanwhile, the quality of the galvanized steel wire mesh, the polymer waterproof coating and other materials is also strictly controlled, so that the quality problem caused by unqualified materials is avoided.

The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.