JPH1018567A - Slide preventive durable floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a durable floor material which can keep and excert desired slide preventive performance for a long term, and is easily and economically executed. SOLUTION: A mortal layer having many spaces is formed using a coarse aggregate having grain diameter selected to be 2-10mm between aggregates on a floor board to be paved, and slide preventability is given to a floor surface by utilizing irregularity appearing on the periphery of the coarse aggregate, and an injecting material produced by combining and regulating a synthetic resin and a hydraulic inorganic material is filled up in the space of the mortal layer to reinforce the combination of coarse aggregate for producing a floor material having the mortal layer which is few in the separation and wear of the aggregate and has excellent durability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor material subjected to anti-slip treatment, and more particularly to a durable floor material capable of maintaining and exhibiting an initial anti-slip performance for a long period of time.

[0002]

2. Description of the Related Art Pavement is applied to indoor and outdoor floor slabs, for example, floors inside buildings, outdoor roads, plazas, and the like, in order to improve the walkability by preventing slippage. The pavement is formed by laying a material having a desired anti-slip action on the floor slab, or laying a floor material having anti-slip irregularities formed on its surface. In the case of inorganic coated flooring materials, brushed surface is formed by brushing as a non-slip finish, and in the case of resin coated flooring material, after forming a base surface, an appropriate particle size is formed via a binder made of synthetic resin on it. Is formed by dispersing an aggregate of the above to form an uneven layer on the surface.

[0003]

SUMMARY OF THE INVENTION In the case of inorganic floor coverings,
Since the brush eye is formed manually, the brush eye tends to be uneven.Especially, skill is required to clean the brush eye on a large area flooring material, and the finishing accuracy is unstable and it takes a long time to complete. There was a problem that it took time.
Further, in the case of the resin-based floor material, although a special construction skill such as brushing is not required, there is a problem that the dispersed aggregate is easily detached due to abrasion or the like, and the uneven layer disappears in a short period of time.

In view of the above problems of the prior art, the present invention can maintain and exhibit desired anti-skid performance for a long period of time, and is easy and economical in terms of anti-slip durability. The purpose is to provide flooring.

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have conducted intensive studies on mortar flooring materials having desired wear resistance and high strength. A mortar layer having voids between the aggregates is formed using coarse aggregate whose particle size is appropriately selected on the top, and the floor surface is provided with slip resistance by using the unevenness of the coarse aggregate peripheral surface that appears on the surface. By adding the appropriate filler to the voids of the mortar layer and enhancing the binding of the coarse aggregate, it is possible to improve the mortar layer to have excellent durability with little detachment or wear of the aggregate. The present invention has been completed.

The anti-slip durable flooring material of the present invention is characterized in that coarse aggregate is hardened on a floor slab by a binder made of a synthetic resin generally used for resin mortar or a hydraulic inorganic material used for polymer cement mortar. A mortar layer having a void between the coarse aggregates is formed, and an injection material obtained by mixing and adjusting the same material used for the binder in the void of the cured mortar layer is used. It is characterized in that it is filled using a rubber lake, a vibrator or the like, while the unevenness of the coarse aggregate on the surface is integrated in a state where it appears.

[0007] The mortar layer obtained by mixing the coarse aggregate and the binder, spreading the mixture on the floor slab, and expanding the mortar layer, as shown in FIG. An anti-slip surface utilizing the shape is formed, and a desired anti-slip property is imparted by appropriately selecting the type and particle size of the aggregate to be used. A void is formed between the aggregates inside the mortar layer using such a coarse aggregate, and an appropriate injection material is impregnated from the surface of the mortar layer, and the gap is filled to fill the gap between the aggregates. The mortar layer is reinforced throughout, and with this, the excess injection material remaining on the surface is removed using a rubber rake or roller brush before the injection material solidifies to the extent that the unevenness of the aggregate appears on the surface. In addition, the floor surface utilizing the uneven shape of the aggregate can be made to be strong with less detachment and wear of the aggregate.

In this case, as shown in FIG. 1B, if the injected material is hardened and then removed by a polisher or the like so that the aggregate is exposed to the surface, as shown in FIG. The floor can be made to take advantage of the texture.
As shown in the figure, the unevenness of the aggregate appears on the floor surface, but if it is removed with a rubber rake or roller brush to the extent that the aggregate is covered with the injection material, the effect of preventing the separation and wear of the aggregate It is possible to obtain a smooth anti-slip surface with a uniform color tone as well as higher. The removal of the injected material can be appropriately performed in consideration of the particle size and shape of the aggregate as long as the unevenness of the aggregate appears on the surface and the slip resistance of the floor surface is not lost.

Further, the mortar layer in which the filling material is filled into the voids and is integrated has a state in which the aggregate is dispersed, and exhibits a strong property against shrinkage and impact.

[0010] The aggregate used in the present invention has a particle size and a shape that are suitable for the workability of a mortar layer formed using the aggregate.
Since it greatly affects the permeability of the injection material after curing and the anti-slip function due to the unevenness of the mortar layer surface, the particle size is adjusted within a predetermined range, and it is hard and hard to wear,
It is preferable to use a material having a smooth uniform shape without a sharp peripheral shape.

The types of aggregates include those generally used as building materials, for example, natural aggregates such as river sand, river gravel, mountain sand, mountain gravel, sea sand, sea gravel, crushed stone, crushed sand, and the like. By-product aggregates such as artificial aggregates and blast furnace slag aggregates can be used. Of these, river sand, sea sand, river gravel,
Sea gravel is suitable because of its smooth surface shape. Further, the blast furnace slag is preferable because the shape thereof is not smooth but the particle size is easily adjusted, and the shape becomes substantially constant by the crushing equipment. In particular, Kashima sand, which is a natural aggregate, has a variety of particle diameters, is excellent in abrasion resistance, and has a smooth shape as a whole.

When the fine aggregate having a particle size smaller than 2 mm is used, the voids between the aggregates become minute, and it becomes difficult to uniformly penetrate the injected material in a short time. ,
When a coarse aggregate having a particle size larger than 10 mm is used, it is difficult to knead and spread the work.
mm, more preferably 10 mm or less in particle size and a 2.36 mm sieve passing amount of 15% by weight or less.

The mortar layer using these aggregates is formed to have a minimum thickness of 2 to 3 times the particle size of the aggregate, specifically, a thickness of 5 mm or more. By doing so, the surface shape (roughness, flatness) of the mortar layer can be made such that the aggregate is uniformly dispersed over the entire surface, but the construction thickness and the surface shape to be formed, that is, should be given Depending on the anti-slip performance, the desired properties can be adjusted by using these aggregates alone or in combination with aggregates of different types, particle sizes and shapes.

The binder used in the present invention is easy to construct, and integrates the aggregates that come into contact with each other by mixing with the aggregates.
It is preferable to use one having a viscosity that forms a void between the aggregates.

Specifically, use of a solventless or solvent type such as a hydraulic inorganic binder represented by Portland cement, an epoxy resin, a urethane resin, and an unsaturated polyester resin used in resin mortar, for example. Can be. Emulsions such as acrylic, ethylene vinyl acetate, SBR, and epoxy resins used in polymer cement mortar can be used alone, but they are used in combination with hydraulic inorganic binders because they dry slowly. Is preferred.

Among these, the binders of solventless type or emulsion type of epoxy resin or the combination of emulsion type and cement have good workability and curability, and have high bond strength and sufficient physical properties, so that mortar binder Is particularly preferred.

Urethane and unsaturated polyester resins are inferior in workability but excellent in low-temperature curability and chemical resistance, and are suitable for specific use places such as wastewater treatment facilities, chemical factories, and food factory floors. It is possible.

Although a mortar layer using a hydraulic inorganic binder alone such as cement has the advantage of low cost, it has oil absorption and water absorption. For ease of use, it is preferable to use aggregate having a large particle size.

The injection material used in the present invention is made of a low-viscosity polymer milk which is easy to apply and has a high fluidity, penetrates sufficiently into the voids of the hardened mortar layer, and forms a hardened product having excellent durability. Preferably, a pigment or a fluidizing agent, a diluent, a curing regulator, etc. necessary for adjusting the clay are mixed with the synthetic resin or the hydraulic inorganic binder in order to improve workability and physical properties.

The quality of the injection material used depends on the mortar layer.
When an aggregate having a particle size of 〜１０10 mm and an adjusted shape is used, the flowability of the injection material can sufficiently penetrate into the mortar within the initial 20 seconds using the P funnel shown in FIG. This has been confirmed by experiments.

The strength of the cured product in this case varies slightly depending on the application and the thickness of the construction, but the bending strength after curing for 7 days is 2.0 N.
/ Mm ² and a compressive strength of 9.8 N / mm ² or more, the durability is sufficient.

Specifically, for example, a solventless epoxy resin,
Polymer cement is excellent in fluidity and durability and is suitable as an injection material. In the case of an epoxy resin, a small amount of a dispersant and a plasticizer are added to a low-viscosity liquid epoxy resin containing a reactive diluent to improve fluidity, and silica powder, talc, pigment (preferably a toner for epoxy) and the like are added. An injection material having a formulation in which a low-viscosity curing agent is combined with a base material to which a filler has been added is preferable because it is easy to use and has excellent adhesion, strength, and chemical resistance.

When cement alone is used as an injecting material,
Cracks are easily formed due to contraction of cement, and adhesion is weak. To improve these, it is preferable to use milk of polymer cement combined with an emulsion as an injection material. The emulsion to be combined is acrylic,
Ethylene vinyl acetate, SBR and the like can be used because they are mixed with cement and have excellent fluidity and sufficient adhesiveness and durability can be obtained. In addition, water reducing agents and pigments are added to cement, and aggregates such as fly ash, blast furnace slag powder, and silica sand are added to improve fluidity and shrinkage. If so, the adhesiveness and the physical properties of the cured product will be excellent. Emulsions can be powdered,
The pigment is preferably an inorganic pigment in terms of weather resistance, and when using an organic pigment, it is preferable to select a pigment having good weather resistance.

It is not preferable to use a solvent type or an emulsion type having a large shrinkage alone as an injecting material, and resins such as unsaturated polyester and polyurethane are disadvantageous in that workability and construction management are difficult.
Can be used.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on embodiments. As a binder of the mortar layer formed on the floor slab, one mainly composed of polymer cement (Example 1), one mainly composed of thermosetting resin (Example 2), one mainly composed of cement (Example) 3) For a resin mainly composed of a polyester resin (Example 4) and a resin mainly composed of a moisture-curable urethane resin (Example 5), a void mortar layer was formed according to the following formulation, and the injection material was permeated. A hardened flooring was formed.

Example 1 A. Mortar layer Aggregate Kashima gravel (particle size 2 to 6 mm) 120 parts by weight Binder Epoxy emulsion (solid content 60%) 4 parts by weight Modified polyamidoamine (active ingredient 50%) 4 parts by weight Ordinary Portland cement 4 parts by weight B. Injection material Powder part White Portland cement 50 parts by weight Blast furnace slag powder 45 parts by weight Additives (dispersant, defoamer) 2 parts by weight Pigment 3 parts by weight Liquid part Acrylic emulsion (solid content 45%) 6 parts by weight Water 27 Parts by weight Topcoat acrylic emulsion (solid content 15%)

The mixture of the above composition A was rolled with a register mark and a mechanical iron on a floor slab coated with a binder excluding cement as a tack coat to form a 10 mm thick void mortar layer. After the mortar layer was cured, the cement milk obtained by mixing the powder of B and the liquid part was spread on the surface of the mortar layer with a rubber lake, and was permeated and injected to the bottom of the mortar layer with a vibrator. At this time, the polymer cement milk on the surface portion was scraped off with a rubber lake to such an extent that the surface of the aggregate was covered but irregularities appeared. Furthermore, after solidification of the injection material, the above-mentioned C, which has excellent weather resistance on the surface, has both the coloring property of the surface and the prevention of stain adhesion.
Was applied to form a floor material.

Example 2 A. Mortar layer Aggregate PS Sand No. 1 140 parts by weight Binder Bisphenol A type epoxy resin 10 parts by weight (including reactive diluent) Modified aliphatic polyamine 4 parts by weight B. Injection material Base part Bisphenol A type epoxy resin 62 parts by weight (including reactive diluent) Silica powder 30 parts by weight Additive (leveling agent, dispersant) 1 part by weight Epoxy toner (pigment 50%) 7 parts by weight Curing agent Parts modified aliphatic polyamine 25 parts by weight

A 7 mm-thick void mortar layer was formed in the same manner as in Example 1 on a floor slab coated with the mixture of the above composition A as a binder as a tack coat. After the mortar layer was cured, the mixture of B was permeated and injected into the mortar layer in the same manner as in Example 1 to remove the injected material on the surface, thereby forming a slip-resistant finished floor material.

Example 3 A. Mortar layer Aggregate PS sand (particle size 5 to 10 mm) 300 parts by weight PS sand No. 1 200 parts by weight Binder Ordinary Portland cement 94 parts by weight Ethylene vinegar-based powder emulsion 5 parts by weight Cellulose-based thickener 1 part by weight Water 40 Parts by weight After applying the acrylic emulsion as a primer to the floor slab, apply the mixture of the above A in 15 m with a dragonfly and a mechanical iron.
A mortar layer is formed by laying down to a thickness of m, and after hardening, the injectant of Example 1 is penetrated, and after hardening, the injectable material on the surface is removed with a polisher to expose the surface of the aggregate. Was formed.

Embodiment 4 A. Mortar layer Aggregate Kashima sand No.1 700 parts by weight Binder Unsaturated polyester resin 100 parts by weight (Chemikrete SV mortar base) Mortar curing agent 1 part by weight Mortar accelerator 1 part by weight Unsaturated polyester resin as primer for floor slab After applying the mixture, the mixture of the above-mentioned A was spread to a thickness of 7 mm to form a mortar layer. After curing, the injection material of Example 2 was penetrated, and the injection material on the surface was removed to form a floor material. did.

Example 5 A. Mortar layer Aggregate Kashima sand No. 1 100 parts by weight Binder Moisture-curable polyurethane resin 70 parts by weight (Chemikrete UH base) Diluent (toluene) 30 parts by weight After applying moisture-cured urethane resin as a primer to the floor slab, The mixture of the above composition was spread evenly to a thickness of 6 mm to form a mortar layer. After curing, the injection material of Example 2 was permeated, and the injection material on the surface was removed to form a floor material.

With respect to the flooring materials of Examples 1 and 2, the amount of material used per unit area and the fluidity of the injection material were measured using a P funnel. The measurement results were as shown in Table 1.

The flexural strength and compressive strength of the floor materials of Examples 1 to 4 were measured in accordance with JIS-R-5201 (physical test method for cement). The measurement results were as shown in Table 1.

With respect to the flooring material of each embodiment, it is checked by hand whether or not irregularities are formed to the extent that the surface can exhibit a slip prevention function, and whether or not the surface aggregate is solidified integrally with the injection material. Was visually checked. The results were as shown in Table 1.

[0036]

[Table 1]

As is clear from the test results, in each example, it was confirmed that the mortar layer including the periphery of the surface aggregate was evenly filled with the injection material, and the surface aggregate was integrated with the injection material. Was done. Both the bending strength and the compression strength are the predetermined strengths (the bending strength is 2.0 N / mm ² ,
The compressive strength exceeded 9.8 N / mm ² ), and it was confirmed that it had high durability.

[0038]

As described above, according to the present invention, by appropriately selecting the particle size and shape of the aggregate used, it is possible to form the desired anti-slip irregularities on the floor material surface, Accordingly, the flooring material can be formed with a large thickness of 5 mm or more. Since the aggregate on the surface of the formed flooring is integrated in a concave and convex shape that is hardened by the injection material,
It becomes strong with little detachment or abrasion, and can maintain and exhibit the initial anti-slip performance for a long period of time. The non-slip durable flooring material of the present invention can be formed in a short time without the need for special construction skills, by using a two-stage construction process of forming a mortar layer on a floor slab, filling an injectable material and removing a surface injectable material. Since it can be formed, no trouble is required for the construction, the construction cost is low, and it is economical.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a non-slip durable flooring material according to the present invention, in which (A) shows a state after forming a void mortar layer, and (B) and (C) show states after filling with an injection material.

FIG. 2 is a dimensional view of a P funnel.

Claims (4)

[Claims] A mortar layer is formed on a floor slab to be paved with a binder made of a synthetic resin or a hydraulic inorganic material, and forms a mortar layer having voids between the coarse aggregates. The mortar layer is filled with an injection material obtained by blending and adjusting the same material used in the above binder, and the uneven surface of the coarse aggregate is revealed and integrated to form a non-slip durable floor. Wood. 2. The non-slip durable flooring material according to claim 1, wherein the coarse aggregate on the surface is exposed and integrated. 3. The anti-slip durable flooring material according to claim 1, wherein the surface coarse aggregate is covered with an injection material and integrated. 4. The non-slip durable flooring material according to claim 1, wherein the coarse aggregate has a particle size of 2 to 10 mm.