阅读说明：本技术 楼地面找平防裂施工方法及楼地面找平防裂结构 (Building floor leveling anti-cracking construction method and building floor leveling anti-cracking structure ) 是由 彭成义 于 2019-09-05 设计创作，主要内容包括：本发明提供了楼地面找平防裂施工方法,包括如下步骤：(1)将基层表面的浮土或砂浆铲除清理干净；(2)根据水平标准线和设计厚度,在四周墙、柱上画出高度控制线；(3)将需要施工的区域安装塑料长条,进行分格,每格的宽度和长度都不超过2m,塑料长条厚度为5-15mm,塑料长条的顶部与高度控制线平齐；(4)将基底湿润,并在基底上刷一道素水泥浆或界面结合剂,将搅拌均匀的水泥砂浆或混凝土铺设在分格内,水泥砂浆或混凝土的量；(5)用振捣器振捣,确保每格内的水泥砂浆或混凝土密实,且水泥砂浆或混凝土不遮盖塑料长条；(6)用木尺在塑料长条上压实刮平水泥砂浆或混凝土。该方法在楼地面形成伸缩缝,防止地面龟裂,保证地面平整。(The invention provides a floor leveling anti-cracking construction method, which comprises the following steps: (1) removing and cleaning the floating soil or mortar on the surface of the base layer; (2) drawing height control lines on the peripheral walls and columns according to the horizontal standard lines and the design thickness; (3) installing plastic strips in an area needing construction, dividing the plastic strips into grids, wherein the width and the length of each grid are not more than 2m, the thickness of each plastic strip is 5-15mm, and the tops of the plastic strips are flush with the height control line; (4) wetting a substrate, brushing plain cement paste or an interface bonding agent on the substrate, and paving uniformly stirred cement mortar or concrete in the cells according to the amount of the cement mortar or the concrete; (5) vibrating by a vibrator to ensure that cement mortar or concrete in each grid is compact and the cement mortar or concrete does not cover the plastic strip; (6) and (3) compacting and leveling cement mortar or concrete on the plastic strip by using a wood ruler. The method forms an expansion joint on the floor of the building, prevents the floor from cracking and ensures the floor to be flat.)

1. A floor leveling anti-cracking construction method is characterized by comprising the following steps:

(1) base layer treatment: removing and cleaning the floating soil or mortar on the surface of the base layer;

(2) finding the elevation, namely drawing height control lines on the peripheral walls and columns according to the horizontal standard lines and the design thickness;

(3) laying plastic strips: installing plastic strips in an area needing construction, wherein the distance between every two adjacent plastic strips is not more than 2m, the thickness of each plastic strip is 5-15mm, and the top of each plastic strip is flush with the height control line;

(4) paving cement paste: wetting a substrate, brushing plain cement paste or an interface bonding agent on the substrate, and paving uniformly-stirred cement mortar or concrete between adjacent plastic strips;

(5) vibrating by a vibrator to ensure that cement mortar or concrete in each grid is compact and the cement mortar or concrete does not cover the plastic strip;

(6) leveling: and (3) compacting and leveling cement mortar or concrete on the plastic strip by using a wood ruler.

2. The floor leveling anti-cracking construction method according to claim 1, further comprising the steps of:

(7) watering and maintaining, namely watering and maintaining in time after the ground is poured for 24 hours in summer, watering 3-4 times per day, keeping the ground in a wet state, and maintaining for 5-7 days; in winter, the heat preservation and maintenance are needed, the doors and the windows are closed, the ground is covered and maintained, and water can be properly sprayed according to the temperature condition.

3. The floor leveling and anti-cracking construction method according to claim 1, wherein in the step (3), a laser ruler is used for controlling the top of the plastic strip to be level with the height control line.

4. The floor leveling anti-cracking construction method according to claim 1, wherein in the step (6), when the cement mortar or concrete is pressed and scraped by a wood ruler, anti-cracking mesh cloth is pressed in.

5. The floor leveling and anti-cracking construction method according to claim 1, wherein the plastic strip has elasticity.

6. A floor leveling anti-cracking structure is characterized by comprising a substrate layer, wherein plastic strips are arranged on the substrate layer, the distance between every two adjacent plastic strips is not more than 2m, and cement mortar or concrete is filled between every two adjacent plastic strips; the side surface of the cement mortar or the concrete, which is jointed with the plastic strip, is provided with an expansion joint.

7. The floor leveling anti-cracking structure according to claim 6, wherein the top surface of the cement mortar or concrete is flush with the top surface of the plastic strip.

8. The floor leveling and anti-cracking structure according to claim 6, wherein the plastic strip has elasticity.

9. The floor leveling and anti-cracking structure according to claim 6, wherein the plastic strips are criss-cross to form grids, and the width and the length of each grid are not more than 2 m.

10. The floor leveling anti-cracking structure according to claim 6, wherein the thickness of the plastic strip is 5-15 mm.

Technical Field

The invention relates to the technical field of building construction, in particular to a floor leveling anti-cracking construction method.

Background

Since the commercialization of houses, the demand for the personalization of decoration is satisfied. Developers are basically dealing with houses according to the rough-finished standard. According to the standard, most of the floors are leveled by cement mortar or fine stone concrete, however, the floors treated in the way often have quality problems such as cracks and the like, and the quality problems cannot be solved well for a long time, occupy a part of the quality complaints of the residential engineering, and become a chronic disease of the general quality complaints of the residential engineering.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a floor leveling anti-cracking construction method, which is characterized in that expansion joints are arranged on the floor, so that the floor is prevented from cracking, the floor is guaranteed to be level, and the technical problems in the prior art are solved.

The technical scheme of the invention is as follows: a floor leveling anti-cracking construction method comprises the following steps:

(1) base layer treatment: removing and cleaning the floating soil or mortar on the surface of the base layer;

(2) finding the elevation, namely drawing height control lines on the peripheral walls and columns according to the horizontal standard lines and the design thickness;

(3) laying plastic strips: installing plastic strips in an area needing construction, wherein the distance between every two adjacent plastic strips is not more than 2m, the thickness of each plastic strip is 5-15mm, and the top of each plastic strip is flush with the height control line;

(4) paving cement paste: wetting a substrate, brushing plain cement paste or an interface bonding agent on the substrate, and paving uniformly-stirred cement mortar or concrete between adjacent plastic strips;

(5) vibrating by a vibrator to ensure that cement mortar or concrete in each grid is compact and the cement mortar or concrete does not cover the plastic strip;

(6) leveling: and (3) compacting and leveling cement mortar or concrete on the plastic strip by using a wood ruler.

Preferably, the floor leveling anti-cracking construction method further comprises the following steps:

(7) watering and maintaining, namely watering and maintaining in time after the ground is poured for 24 hours in summer, watering 3-4 times per day, keeping the ground in a wet state, and maintaining for 5-7 days; in winter, the heat preservation and maintenance are needed, the doors and the windows are closed, the ground is covered and maintained, and water can be properly sprayed according to the temperature condition.

Preferably, in the floor leveling anti-cracking construction method, in the step (3), the top of the plastic strip is controlled to be level with the height control line by using the laser ruler.

Preferably, in the floor leveling anti-cracking construction method, in the step (6), when the cement mortar or concrete is compacted and scraped by using a wooden ruler, anti-cracking grid cloth is pressed in. The anti-crack grid cloth can further prevent the floor surface from cracking.

Preferably, the floor leveling anti-cracking construction method further comprises the following steps:

(8) and grinding, curing and polishing the surface of cement mortar or concrete, and coating a concrete sealing curing agent.

The plastic strips are criss-cross to form grids, and the width and the length of each grid are not more than 2 m.

Preferably, the plastic strip has elasticity, and the material of the plastic strip is PVC, TPU, PP, PE, PVA, or the like.

A floor leveling anti-cracking structure comprises a substrate layer, wherein plastic strips are arranged on the substrate layer, the distance between every two adjacent plastic strips is not more than 2m, and cement mortar or concrete is filled between every two adjacent plastic strips; the side surface of the cement mortar or the concrete, which is jointed with the plastic strip, is provided with an expansion joint.

Preferably, the top surface of the cement mortar or concrete is flush with the top surface of the plastic strip.

Preferably, the plastic strip is flexible.

Preferably, the plastic strips are criss-crossed to form a grid, each grid having a width and length of no more than 2 m.

Preferably, the plastic strip has a thickness of 5-15 mm.

The invention has the beneficial effects that: according to the floor leveling anti-cracking construction method, before cement mortar or concrete is paved, the area to be constructed is partitioned by plastic strips, and the distance between every two adjacent plastic strips is not more than 2 m. The cement mortar or concrete shrinks after solidification, and a shrinkage joint is formed between the cement mortar or concrete and the plastic strip. When the temperature changes or vibration is sent, the shrinkage joint provides an expansion space or a micro-motion space for the solidified cement mortar or concrete, so that the quality problems of cracks and the like on the floor surface are avoided.

In addition, according to the floor leveling anti-cracking construction method, the top end of the plastic strip is flush with the height control line, so that the leveling precision can be controlled during leveling, and the error is not more than 1 mm.

The plastic strip has supporting and positioning functions on the wood ruler, and the wood ruler is scraped at the top of the plastic strip in the leveling process, so that the leveling construction is convenient.

Drawings

Fig. 1 is a schematic structural view of the floor leveling anti-cracking structure of the present invention.

Detailed Description

In order to make the object, technical solution and technical effect of the present invention more apparent, the present invention will be further described with reference to the following embodiments. It should be understood that the embodiments and the accompanying drawings described herein are merely illustrative of the invention and are not intended to limit the invention.