JPH01174766A - Masonry method - Google Patents

Abstract

PURPOSE:To shorten working hours by spreading a self-leveling material of more than the specified flow value on the underfloor ground and hardening it, and then bonding in with a rubber or synthetic resin bonding agent. CONSTITUTION:A self-leveling material of more than 210mm in flow valve is made to flow on the underfloor ground and hardened. Next, a rubber-based solvent type bonding agent is applied on the surface after the elapse of about 24 hours, and masonry is carried out without stone leveling. After pressure application, the floor is made walkable at once. Consequently, workhours are sharply reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for adhering stone to a substrate, such as surface finishing with stone.

[Prior art]

Since the base of mortar etc. is usually applied by troweling, it is difficult to have a completely smooth and level surface without any unevenness. If you try to glue finishing materials such as artificial stone or natural stone on top of this, the material itself is completely inflexible, so if you try to glue it directly to the base with an adhesive while the base has unevenness etc. , the stone does not blend well with the base, creating uneven joints that are unsightly.

Moreover, it is impossible to avoid poor adhesion, cracking, or chipping. Therefore, conventional technology uses mortar (slag) or a mortar head to form a mortar layer on the base, and then places stones on top and presses them down to sink the stones into the mortar and level the stone surface. He took out the mortar and waited for the mortar to harden before completing the gluing work.

When mortar (slag) is used in this way, it is necessary to mix small amounts of slag over and over again to avoid hardening during use.
In addition, it takes time to construct because it is necessary to level the stone, and even if the stones are laid, there are drawbacks such as not being able to place anything on top of them or walk on them until the mortar has hardened. Ta.

〔the purpose〕

The present invention aims to eliminate the aforementioned drawbacks.

〔composition〕

In place of the conventional method, in which mortar is applied to the subfloor surface, stones are placed on top of the mortar, and the stones are submerged in the mortar to both level the stones and attach the stones, the present invention provides a self-adhesive method for applying mortar to the subfloor surface. A feature of this method is that after the leveling material is cast and cured, stones are attached using a rubber or synthetic resin adhesive.

Self-leveling materials have a flow value of 210 m or more,
Particularly preferably, as long as it is 220 mm or more, any cement-based material or gypsum-based material can be used, but among cement-based materials, ceramic material is most preferred.

If the flow value is less than 210 m/m, the self-leveling property will be poor, and even if the stone is attached with adhesive, cracks and chips will occur. This type of material, which refers to products with a high content of % by weight or more, has high fluidity even with a small amount of water added, high strength after curing, and short curing time. . It is important that the amount of water added is small. In other words, the less moisture there is, the less curing time is required, and furthermore, when attaching stones with adhesive, the influence of moisture on the connecting agent (peeling, etc.) can be suppressed as much as possible.

The composition of the leveling material (SL material) is shown in Table 1.

In the leveling material, sand is mixed in advance at the leveling material so that the ratio of leveling material to sand is about 1:2. Among these leveling materials, the physical properties of the ceramic SL material are shown in Table 2.

Table 2 Note 1) Flow values are based on the method of public corporation standards. That is, (a) Place a vinyl chloride pipe (50A, inner diameter 50m, height 51mm) on polished glass (thickness 5+ma), fill it with a crosstalk sample, and pull up the pipe.

(b) After the spread of the kneaded sample is stopped, the diameters in two perpendicular directions are measured, and the average value is taken as the flow value.

2) According to JIS R5201.

3) Pour the leveling material onto the base to a thickness of 10 mm under standard conditions and leave it for 13 days at a temperature of 20 ± 1°C and a humidity of 6.
Cured at 0±5%.

Next, the semi-rigid vinyl asbestos floor tiles cut to 40 x 40 m++ were glued to JIS standards using a vinyl acetate resin solvent-based adhesive.
It was adhered according to the method specified in 4.3.2 of A3536, and after curing for 2 days, the adhesive strength was measured according to the provisions of the same method.

The stone referred to in the present invention may be either a natural stone or an artificial stone, and a plate-shaped stone with a thickness of several to several tens of II/II is used.

〔Example〕

10cm thick on concrete base made using normal construction method.
After 24 hours, a leveling material with the above composition was cast, and after 24 hours, a rubber-based solvent-based adhesive was applied to the surface at a rate of 500 g/I, and a stone of 50 x 50 x 1.5 cm was constructed without being conscious of leveling. .

According to this method, it was possible to make a 20-storey floor into a walkable condition in two days. In addition, the product could be walked on immediately after crimping, and no cracks were caused by walking. By the way, with the conventional mortar method, stones can only be pasted for five bore days, and moreover, it requires about one day of curing time after pasting.

The finished state of the stone construction was as smooth as the conventional construction method.

〔effect〕

(i) Overall, the working time can be significantly reduced.

(ii) You don't have to worry about leveling up.

(ni) Can be used immediately after pasting (walking, placing items) 6 (iv) There is no cracking or chipping of the stone, and unevenness of joints can be prevented.

(v) In this method, most of the time required for construction is the time required for curing the SL material, so once the SL material is cast and cured on a large area of the floor at once, the rest is done using synthetic resin. It is advantageous in terms of efficiency for large-area floors because it can be applied in the same way as other flooring materials. In contrast, the conventional method described above is area-independent.

Claims (1)

[Scope of Claims] 1. A stone construction method, which comprises: casting and hardening a self-leveling material on a subfloor surface, and then bonding the stone using a rubber or synthetic resin adhesive. 2. The method according to claim 1, which uses a self-leveling material having a flow value of 210 mm or more. 3. The method according to claim 2, wherein the self-leveling material having a flow value of 210 mm or more is made of ceramic material. 4. The method according to claim 3, wherein the ceramic self-leveling material has a composition of 15% or more of Al_2O_3+Fe_2O_3.