JPH11293901A - Hydraulic nonslip inorganic floor and formation thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nonslip structure which has no directionality in the floor face made of an inorganic material such as concrete or mortar and retains an excellent nonslip property for a long period of time and further which can be simply constructed. SOLUTION: Cement, pigment, improving additives, etc., are mixed with hard aggregate having 0.3-2.4 mm in size to prepare a scattering powdery material. Concrete or mortar is placed for a substrate bed 2 and the powdery material is scattered in the uncured state of the substrate bed and then, cured. After the scattered hydraulic binder has absorbed excessive water and cured, a synthetic resin durable top coat is applied on the surface to form a hydraulic nonslip durable inorganic floor. The hard aggregate 3 is scattered in a state that it settles a little in the substrate bed 2 and integrated with the substrate bed 2. And an uneven layer whose surface is coated with the synthetic resin durable top coat layer 4 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor made of an inorganic material such as concrete or mortar, and more particularly to a hydraulic non-slip durable inorganic floor having a floor surface provided with anti-slip performance and a method of forming the same.

[0002]

2. Description of the Related Art As a method for imparting anti-slipping performance to an inorganic floor, for example, a floor made of cement concrete or cement mortar, a method of forming irregularities on a substrate surface by brushing has been used for many years. Has been done over However, such a brushing method,
Due to the directionality of the brush, there is a problem that although the anti-slip performance in one direction is excellent, the anti-slip performance in another direction is inferior.
In addition, since the brush eyes are formed manually, the brush eyes tend to be uneven.Especially, skill is required to apply the brush eyes to a large area floor material, and the finishing accuracy is unstable and completed. There was a problem that it would take a long time to complete.

[0003] The present invention, in order to solve such a problem, provides a new method which replaces the brushing method which has been performed for many years. It is an object of the present invention to provide a hydraulic anti-slip durable inorganic material floor which can be maintained for a long period of time and can be easily constructed, and a method of forming the same.

[0004]

In order to solve the above-mentioned problems, a method for forming a hydraulic anti-slip inorganic floor according to the present invention is directed to a dusting powder obtained by mixing at least a hydraulic binder with a hard aggregate having a predetermined size. Immediately after casting, the body is sprayed on an unhardened concrete or mortar base surface, and the sprayed hydraulic binder absorbs excess water of the unhardened concrete or mortar and hardens. Is applied.

[0005] The method for forming a hydraulic non-slip inorganic floor according to the present invention comprises:
Since the surface of the ground substrate is sprayed with powder composed of hard aggregate and hydraulic binder while the surface of the ground is uncured, the scattered powder is scattered in a state slightly submerged on the ground, and excess water is removed. Absorbs and causes a hydration reaction to firmly and firmly integrate with the substrate. Further, since a synthetic resin durable top coat layer is further formed thereon, the hard aggregate is extremely difficult to peel off, and the anti-slip performance can be maintained for a long period of time. Here, in forming the resin material floor, after forming the base surface, a synthetic resin binder is applied thereon, and an aggregate having an appropriate particle size is scattered here, and the aggregate is fixed via the binder and fixed on the surface. Compared with the case of forming a concavo-convex layer, in the case of a resin material floor, the scattered aggregate does not sink into the base and the aggregate and the base are merely bonded in a dotted manner, so that the aggregate is easily peeled. Therefore, in this regard, it can be said that the present invention exhibits more excellent effects. Further, in the case of a resin material floor, a long curing time is required until the work can be performed because the drying time of the base is long. The present invention is also excellent in this respect. On the other hand, when compared with the brushing method, according to the present invention, it is possible to form an anti-slip inorganic floor surface that is not directional and cannot be obtained by the brushing method, and even without skilled skills like the brushing method. It is excellent in that a non-slip floor having uniform properties can be formed.

According to the present invention, concrete or mortar is poured, and immediately after that, a sheet or plate having a hole of a predetermined shape is placed on a part or the entire surface of an unhardened concrete or mortar, A powder obtained by mixing at least a hydraulic binder with a hard aggregate having a diameter of 0.3 mm to 2.4 mm is sprayed on the surface of the sheet or plate and the base, and the sprayed hydraulic binder is uncured concrete or mortar. After the excess water is sucked and cured, the sheet and uncured powder on the sheet are removed, and a synthetic resin durable top coat is applied. I do. For example, if a sheet with a hole in a brick shape in plan view is used, a brick pattern can be formed on the ground surface, and the anti-slip property can be imparted, and the design property and the anti-slip property can be simultaneously provided on the floor surface. Can be provided.

Here, the "sprayed powder" of the present invention is a powder obtained by mixing at least a hydraulic binder with a hard aggregate of a predetermined size. Is what you do. Preferably, a hydraulic binder such as cement, a modifying additive, a pigment, and the like are attached to the periphery of the aggregate particles in advance by mixing with a powder mixer.

The "hard aggregate" of the present invention includes those generally used for building materials, such as river sand, river gravel, mountain sand, and the like.
Mountain gravel, sea sand, natural aggregates such as sea gravel, crushed stones, artificial aggregates such as crushed sand, it is also possible to use by-product aggregates such as blast furnace slag, preferably emery one, Caborundum,
Either an aggregate having excellent wear resistance such as alundum, a metal-based aggregate such as a stainless-based metal aggregate, or a mixture of two or more of these is used. The particle diameter of the hard aggregate is preferably from 0.3 mm to 2.4 mm from the viewpoint that the slip resistance can be imparted and the running property is not reduced.

As the "hydraulic binder", any of portland cement, gypsum, hydraulic slag, etc., or a mixture of two or more of these can be used. It is also preferable to use a resin to which an aqueous powder resin is added to increase the strength.

[0010] The "modifying additive" includes a moisture absorbent,
Examples thereof include a water reducing agent, a water absorption aid, an acrylic resin, vinyl acetate, and other synthetic resin powders, and these can be used in combination. By adding these, the adhesiveness between the aggregates can be enhanced, and the peeling of the sprayed powder can be further prevented. As the “pigment”, a commonly used pigment powder can be used. By mixing the pigment and entangled with the hard aggregate, the coating process can be omitted and the work efficiency and work cost can be suppressed.In addition, uniform and clear colors that cannot be obtained with cement-based flooring materials can be obtained. Can be granted.

In the present invention, the above-mentioned "sprayed powder" is preferably placed in the uncured state (ie, wet state) immediately after the concrete or mortar as the ground has been cast, preferably at the time when tightening is started or when breathing water is discharged. If it occurs, it is sprayed when the leaching of breathing water is completed. Spraying may be carried out directly by hand or by using an automatic spraying machine or the like, but it is preferable to spray uniformly on the base surface. The amount of the powder to be sprayed is preferably such that the base is hidden when viewed from above, specifically, at a rate of 1.4 to 2.0 kg / m ² .

After the hydraulic binder has absorbed and cured the excess moisture of the uncured concrete or mortar (usually 1 to 3 days from the date of spraying), the floating material or the like was removed with a broom or a vacuum cleaner. Remove and apply a synthetic resin durable topcoat on it. As the “synthetic resin durable top coat”, various synthetic resin floor coatings such as polyurethane, epoxy resin, unsaturated polyester, or solvent-based paints can be used. It is preferable to use an acrylic emulsion (solid content: 40% to 15%) paint from the viewpoints of improving fixability and color developing property, exhibiting a stain prevention effect, and also having excellent weather resistance. 0.2 to 0.8
kg / m ² , preferably about 0.4 kg / m ^2.
It is particularly preferable to apply kg / m ² .

According to the above-mentioned forming method, the surface of the base made of concrete or mortar is 0.3 mm to 2.4 mm.
A large number of hard aggregates having different diameters are scattered, and the hard aggregates are integrated with the base in a slightly sunk state, and the upper part protrudes from the base surface. The hydraulic anti-slip durable inorganic material floor of the present invention having a configuration in which a coat layer is formed can be formed.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The hydraulic and non-slip durable inorganic material floor of the present invention and the method for forming the same will be specifically described below by way of actual rotation.

(Example 1) Preparation of scattered powder Materials having the following compounding ratios were mixed by a powder mixer to prepare scattered powder. White cement ・ ・ ・ 36.0 (wt%) Ordinary cement ・ ・ ・ 4.0 (wt%) Emery No.5 ・ ・ ・ 56.4 (wt%) Green pigment ・ ・ ・ 3.5 (wt%) Dizole S: 0.1 (% by weight)

In this embodiment, the hard aggregate has a particle size of 0.3.
Using Emery No. 5 mm to 2.4 mm, using a combination of sirocement and ordinary cement as a hydraulic binder, using dizole (trade name, manufactured by Sugai Chemical Industry Co., Ltd.) as a modifying additive, Green pigment was used as a pigment. Dizole is a sodium salt of a condensate of naphthalenesulfonic acid and formalin, and functions as a water absorption aid or a water reducing agent.

Spraying of the prepared powder and application of top coat Concrete was poured, and the surface was leveled with a trowel. After about 3 hours at room temperature, when the breathing water on the surface was drained, The sprayed powder having the above composition was directly and uniformly sprayed at a rate of about 1.8 kg / m ² by hand, and the surface was covered with a vinyl sheet or the like and cured to sufficiently hydrate the sprayed powder. . After curing for 2 days, excess unhardened powder was removed with a vacuum cleaner or a broom, and a top coat of 0.4 kg / m ² was applied using a roller brush. In the top coat, an aqueous acrylic emulsion (solid content 40% to 15%) 69.0 (% by weight), water 2
0.0 (% by weight), thickener 1.0 (% by weight), coloring agent 1
The composition of 0.0 (% by weight) was used.

As shown in FIG. 1, a large number of hard aggregates 3, 3,... Are scattered on the surface of the base 2, and an uneven layer is formed on the surface. The hydraulic anti-slip durable inorganic floor 1 formed with the top coat layer 4 was formed. Further, each hard aggregate 3 was firmly fixed and integrated with the base 2 in a state of being slightly sunk in the base 2, and the upper part was in a state of protruding from the surface of the base.

Evaluation The physical properties of the cured body of the top coat were a flexural strength of 5.9 N / mm.
^{2. The} compressive strength was 35.3 / mm ² , which was sufficient for use as a non-slip durable floor material.

(Example 2) Preparation of scattered powder A scattered powder was prepared in the same manner as in Example 1 above. Spraying the prepared powder and applying a top coat After placing concrete, leveling the surface with a trowel and then about 3 hours at room temperature, measure the time when breathing water on the surface dries, and apply it to the concrete surface. I laid a paper pattern punched out of a brick-shaped hole in plan view. Then, the sprayed powder was directly and uniformly sprayed by hand at a rate of about 1.4 kg / m ² , and the surface was covered with a vinyl sheet or the like and cured so as to sufficiently hydrate the sprayed powder. After curing for about 1 day, the paper pattern was removed (at this time, the powder on the paper pattern was not cured because of no water supply because it was not in contact with the concrete), and then cured including the powder on the paper pattern The powder not having been removed was removed with a vacuum cleaner or a broom, and then a top coat of 0.4 kg / m ² was applied with a roller brush. Water-based acrylic emulsion (solid content 40
% To 15%) 69.0 (% by weight), water 20.0 (% by weight), a thickener 1.0 (% by weight), and a coloring agent 10.0 (% by weight) were used. .

As shown in FIGS. 2 and 3, a large number of brick-shaped convex portions 5 are formed on the surface of the base 2, and a non-slip uneven layer is formed on the surface of the convex portions 5.
Further, it is possible to form a hydraulic anti-slip durable inorganic material floor having a brick pattern (as if the bricks are laid all over the surface) in which the synthetic resin durable top coat layer 4 is formed on the surface of the base 2 and the surface of the convex portion 5. did it. Evaluation The flexural strength and compressive strength of the cured product were almost the same as those of Example 1 above.

(Example 3) Preparation of powder to be sprayed Materials having the following compounding ratios were mixed by a powder mixer to prepare powder to be sprayed. Shirocement ・ ・ ・ 36.0 (wt%) Ordinary cement ・ ・ ・ 4.0 (wt%) Powder emulsion ・ 4.0 (wt%) Emery No.5 ・ ・ ・ 52.4 (wt%) Green pigment ・··· 3.5 (% by weight) Disol S ··· 0.1 (% by weight) Also in this example, the hard aggregate has a particle size of 0.3 mm to 2.4 m.
m Emery No. 5, a combination of sirocement and ordinary cement as a hydraulic binder, and dizole as a modifying additive (trade name, manufactured by Sugai Chemical Industry Co., Ltd.)
And a powder emulsion, and a green pigment was used as a pigment. Spraying of the prepared powder and application of a top coat The same procedure as in Example 1 of the covering method was carried out. Evaluation The flexural strength and compressive strength of the cured product were almost the same as those of Example 1 above, but the powdered powder was mixed with the powdered emulsion to make the powdered powder more firm and more excellent as a non-slip durable floor material. It became.

(Example 4) Preparation of sprayed powder Materials having the following compounding ratios were mixed by a powder mixer to prepare a sprayed powder. Shirocement ... 36.00 (wt%) Ordinary cement ... 4.00 (wt%) Powder emulsion ・ 4.00 (wt%) Emery No.5 ・ ・ ・ 52.24 (wt%) Blue pigment ・... 3.23 (% by weight) Titanium white ... 0.14 (% by weight) Yellow pigment ... 0.14 (% by weight) Ripon ... 0.15 (% by weight) 0.15 (% by weight) In this actual covering example, the particle diameter of the hard aggregate is 0.3 mm to 2.4 mm.
mm emery No. 5, using a combination of sirocement and ordinary cement as a hydraulic binder, using dizole (trade name, manufactured by Sugai Chemical Industry Co., Ltd.) and powder emulsion as modifying additives, Blue pigment, titanium white and yellow pigment were used in combination.
Spraying of prepared powder and application of top coat Spraying of prepared powder and application of top coat were performed in the same manner as in Example 1.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a hydraulic anti-slip durable inorganic material floor of the present invention.

FIG. 2 is a perspective view showing an example of a floor surface when a non-slip durable inorganic material floor is formed using a die-cut sheet.

FIG. 3 is a plan view of the floor surface of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hydraulic anti-slip durable inorganic material floor 2 Substrate 3 Hard aggregate 4 Synthetic resin durable top coat layer 5 Convex base

Claims (3)

[Claims] 1. A spraying powder obtained by mixing at least a hydraulic binder with hard aggregate having a diameter of 0.3 mm to 2.4 mm is sprayed on an unhardened concrete or mortar base surface immediately after casting. A method for forming a hydraulically-slip-resistant and durable inorganic material floor, comprising applying a synthetic resin durable top coat after the sprayed hydraulic binder absorbs surplus water from uncured concrete or mortar and hardens. 2. A concrete or mortar is poured, and immediately after that, a sheet or plate having a hole of a predetermined shape is placed on a part or the entire surface of an unhardened concrete or mortar, and the sheet or plate is placed. A powder obtained by mixing at least a hydraulic binder with hard aggregate having a diameter of 0.3 mm to 2.4 mm is sprayed on the surface of the plate and the base, and the sprayed hydraulic binder is made of uncured concrete or excess water of mortar. And drying and drying, removing the sheet and uncured powder on the sheet, and applying a synthetic resin durable top coat. 3. A large number of hard aggregates having a diameter of 0.3 mm to 2.4 mm are scattered on the surface of a base made of concrete or mortar, and the hard aggregates are integrated with the base in a slightly sunk state and the upper part is formed. A hydraulic anti-slip durable inorganic floor having a configuration in which a synthetic resin durable top coat layer is further formed on the base surface including the protruding portion and including the protruding portion.