JPS609186B2 - How to adjust the base of floors and walls - Google Patents

Description

[Detailed description of the invention] The present invention relates to a base preparation method.

When there are irregularities like the one shown in the illustration on the base of decorative flooring materials such as tile, or the base of paint on walls, conventional methods have been used to adjust the unevenness to create a smooth base using cement mortar. A method of adjusting unevenness is generally used, but this type of conventional method does not solve the problem of roughness due to shrinkage or dry-out that is inherent in hardened cement.
The disadvantage is that cracks are likely to occur.

In other words, when adjusting concave unevenness as shown in the figure with cement mortar, the hardening water of the cement mortar is absorbed or evaporated from the base and finished surface.
The cement mortar becomes droopy and cracks or cracks occur, and the above phenomenon is more likely to occur in the part B, which has a small wall thickness, compared to the part A, which has a thick wall. Therefore, in order to prevent problems such as separation or cracks from occurring, it is necessary, for example, to raise the floor panel with cement mortar by 3 or more points above the standard level, as shown by the two-dot chain line. I have to find a way. The present invention provides a method for preparing a base without raising the floor level and without causing problems such as separation or cracks, which have been problems in the past.

First, the base conditioner used in the present invention will be explained.

The composition of the base conditioner used in the present invention is perlite,
Aggregate with water retention properties such as vermicrite, rubber latex such as natural rubber latex, chloroprene latex, SBR latex, cement, and additives such as antifoaming agents and activators as necessary are mixed together. It consists of Next, a method for adjusting the base using the base conditioner used in the present invention will be described.

First, a rubber latex-based primer made of cement mixed with rubber latex such as natural rubber latex, chloroprene latex, or SBR latex is uniformly applied to the ground surface of the floor and walls, and then the primer is wetted. During this period, the base conditioner used in the present invention described above is applied to a desired thickness. When adjusting the base of a floor or wall by the base conditioning method according to the present invention using the base conditioning material used in the present invention described above, it is possible to adjust the base of the floor or wall even on concave uneven surfaces as shown in the drawings. It can be finished without raising the level, and even after finishing, it is possible to prevent problems such as splitting and cracking, which have been problems in the past.

In other words, since the base conditioning material used in the present invention uses water-retentive aggregate such as pearlite or vermicryte as the bone structure, even if water evaporates from the finished surface, the water-retention bone structure remains intact. In addition to supplying the moisture necessary for curing, ``Since rubber latex is mixed in the base conditioner used in the present invention, as the curing progresses, a rubber latex film is formed on the finished surface, suppressing the evaporation of moisture. For,
Problems such as separation and cracks due to dry out do not occur. On the other hand, since a rubber latex primer is applied to the surface to be prepared, the primer enhances the adhesion effect between the surface to be prepared and the preparation material, and also allows the hardened water to penetrate into the substrate. prevent. In addition, water-retentive aggregates such as vermicrite have the property of collapsing when being pressed down, making it possible to construct recesses to match the standard level surface without raising the floor level as shown in the figure. It has many advantages.One embodiment of the present invention will be described below.

(Example) A desired rubber latex mortar was obtained as a base conditioner used in the present invention by mixing the components shown in the separation table below. Mixture table Boltland cement...57 weight Sun SBR Latinx individual shape 48 shots) ": 29"Jakuhanwari"Harlite;14" Total 100" In addition. The pearlite used had the following particle size distribution (according to JIS Fluid K).

Next, apply a primer of Boltland Cement to SBR Latex = 1:2 (weight ratio) to the uneven surface as shown with a rubber mop. Also, when the base conditioner 2 of the above composition was applied using a smear as shown in the figure, a smooth base could be formed.

After construction, no problems such as separation or cracks occurred in the unevenness adjustment area. BRIEF DESCRIPTION OF THE DRAWINGS The drawings are for explaining embodiments of the base preparation method according to the present invention.

Military... Unland surface ``2... Ground conditioning material.

Claims (1)

[Claims] 1. Apply a rubber latex-based primer made of cement mixed with rubber latex such as natural rubber latex, chloroprene latex, or SBR latex to the ground surface of the floor and wall, and then apply it evenly while the primer is kept moist. A method for preparing a base for floors and walls, comprising applying a base conditioner made by kneading water-retentive aggregate such as perlite or permicrite, rubber latex, and cement onto the primer layer.