JPH0586354A - Inorganic repairing material - Google Patents

Abstract

PURPOSE:To provide the subject material which can be used readily without the use of water and excels in durability. CONSTITUTION:The objective material comprises a pasty composition prepared by mixing a material based on sodium silicate with a fine inorganic powder ad packed in one container and an alkaline agent packed in another container. Examples of the material based on sodium silicate include sodium orthosilicate and sodium metasilicate, and examples of the fine inorganic powder include silica, fine glass powder and rock powder. Examples of the alkaline agent include slaked lime, sodium hydroxide and sodium carbonate. In its use, the pasty composition and the alkaline agent are withdrawn from the respective containers and mixed together in situ to obtain an inorganic repairing material, which is packed into, for example, a craze on a wall and cured. It can be cured in about 10min.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inorganic repair material and a method of using the same, and more specifically, it does not require the use of water during mixing, can be easily used, and has excellent durability, and the same It is about how to use it.

[0002]

2. Description of the Related Art Repair materials are used for repairing outer walls of buildings, repairing cracks in tiles, etc., and cement-based and resin-based repair materials are known. Especially as a resin-based repair material, a two-component epoxy resin adhesive is
It is a typical one that is easily used for home use.

On the other hand, the repair material mainly composed of cement is
It is durable and preferable, and when used,
It is mixed with water to form a paste, which is then filled into cracks and other repair points.

[0004]

However, when the two-component epoxy resin adhesive is used for repairing the outer wall of a building, the two-component epoxy resin adhesive is comparatively exposed to external conditions such as sunlight (ultraviolet rays) and wind and snow. The adhesive often deteriorates in a short time and loses its function as a repair material. In addition to the inconvenience of using water, the repair material containing cement as the main ingredient has a problem that uncured cement flows out after repair because it requires a long time to cure the cement.

Further, when the moisture rapidly evaporates due to direct sunlight after the repair, there is a problem that curing failure occurs due to insufficient moisture. Furthermore, since cements are hydraulic and cannot be kneaded with water beforehand, the repair work becomes complicated.

[0006] The first problem to be solved by the present invention is
It is an object to provide an inorganic repair material that does not require the use of water during mixing and can be easily used and has excellent durability. A second problem to be solved by the present invention is to provide a method of using an inorganic repair material that does not require the use of water during mixing and can be easily used.

[0007]

In order to solve the above problems, the present inventor has conducted various studies in view of the fact that inorganic materials are relatively resistant to ultraviolet rays, and as a result, sodium silicate and an alkaline agent were added. By utilizing the phenomenon in which gelation causes rapid hardening by combining the above, it has been found that a repair material that is strong against external conditions such as sunlight can be obtained and can be easily used, and the present invention will be described here. completed.

Therefore, the means for solving the problems of the present invention are respectively achieved by the inventions having the following constitutional requirements (1) and (2). (1) An inorganic repair material, wherein a paste-like composition in which a material containing sodium silicate as a main component and an inorganic fine powder are mixed and an alkali agent are separately stored in a container.

(2) In use, a container containing a composition in which a material containing sodium silicate as a main component and an inorganic fine powder are dispersed in a paste form and another container containing an alkali agent are contained. A method of using an inorganic repairing material, wherein the composition and the alkaline agent are taken out from the above and the two are mixed as they are on the spot.

The present invention will be described in more detail below. Since the repair material of the present invention uses an inorganic material for all components, such as a material containing sodium silicate as a main component, an inorganic fine powder, and an alkaline agent, it has excellent durability against ultraviolet rays and excellent durability. effective.

In the present invention, a paste-like composition (hereinafter referred to as agent A) in which a material containing sodium silicate as a main component and an inorganic fine powder are mixed in use, and an alkaline agent (hereinafter referred to as agent B). If the two are mixed as they are and filled into the cracked part of the outer wall, the repair material will harden within a few minutes to several tens of minutes, and it is not necessary to add water during mixing unlike the conventional cement-based repair material. There is an effect that can be easily done.

The present invention utilizes the phenomenon that sodium silicate reacts with an alkaline agent to cause gelation and rapidly hardens. A material containing sodium silicate which is one component of the agent A as a main component is silicic acid. It is not particularly limited as long as it is a material containing soda, and examples thereof include sodium orthosilicate, sodium metasilicate, standard products of sodium silicate Nos. 1 to 4, special sodium No. 1, K, special No. 2 and the like. Etc. These materials may be used alone or in combination of two or more.

The material containing sodium silicate as a main component is made into a paste form, and an inorganic fine powder having no alkalinity is added to the material to form the agent A. In order to obtain a paste form having an appropriate viscosity. It is preferable to add water to and mix. Therefore, the agent A described in the claims is used to mean both water-containing and water-free ones.

The inorganic fine powder which does not show alkalinity is
The material is not particularly limited as long as it does not react with the material containing sodium silicate as a main component, and thus any material that does not exhibit alkalinity may be used. Examples of the inorganic fine powder include silica sand, glass fine powder, mica, titanium oxide,
Examples thereof include anhydrous silica and rock powder generated in a quarry. Fine silica sand is preferable.

The mixing ratio of the material containing sodium silicate as a main component and the inorganic fine powder having no alkalinity is 10% by weight to 5 based on the addition amount of the inorganic fine powder having no alkalinity.
It is 100% by weight, preferably 50% by weight to 400% by weight. Further, the amount of water added may be an amount that provides an appropriate paste state, and is preferably 0% by weight to 150% by weight.

The agent B used in the present invention is an alkali metal or alkaline earth metal hydroxide or carbonate,
For example, calcium hydroxide (slaked lime), sodium hydroxide, potassium hydroxide, barium hydroxide, magnesium hydroxide, sodium carbonate, potassium carbonate, calcium carbonate, lithium carbonate, sodium phosphate, and the inorganic fine powders used for the agent A can be used as described above. The material of which alkalinity is imparted, the blast furnace slag and the like. Of these, preferred are calcium hydroxide (slaked lime) mixed with fine powder silica sand, and sodium carbonate mixed with fine powder silica sand. The materials used as the agent B may be used alone or in combination of two or more.

These agents B may be stored in the container as they are, but it is preferable to store them in a container after appropriately adding water. Therefore, the agent B described in the claims is used both in a meaning including water and a meaning not including water. In the present invention, the agent A and the agent B are stored in separate containers, and the agent A and the agent B are taken out from the container at the time of use, and the two are mixed and applied to a repaired portion such as an outer wall. This repair material is cured within 30 seconds to 120 minutes, usually about 10 minutes after being filled or applied to the repaired portion.

The container used in the present invention is not particularly limited, but includes a tube, a glass bottle, a can,
Examples include bags. The shape of the container may be either a special shape or a normal shape. The material used for the container is
Examples thereof include plastic, glass, metal, wood, resin laminated paper and the like.

As the repair points where the repair material is used,
It is not particularly limited, but it can be applied to, for example, an outer wall of a building, a wall, a tile of an entrance, a tile of a bathroom, and other appropriate places as necessary.

[0020]

The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto.

Example As a material containing sodium silicate as a main component, 1 kg of JIS No. 3 sodium silicate and 1.5 kg of finely powdered silica sand were sufficiently and uniformly mixed and then filled in a tube to prepare a tube-containing agent A.

Then, 1 kg of slaked lime as an alkaline agent
After adding 3 kg of water to 4 kg of finely powdered silica sand and mixing, put it in a tube to prepare a tube-containing agent B. The agents A and B thus produced were brought to the outer wall of the building, where the agents A and B were taken out of the tube and mixed sufficiently evenly. Immediately thereafter, the cracked portion of the repaired portion was filled.

After 20 minutes, the repair material filled in the cracked portion was examined and found to be sufficiently cured. As described above, since this repair material does not use water at the time of use, it is easy to handle and thus suitable for household use. A weather resistance test was carried out with a weather meter on the repaired part using this repair material, and it was found that there was sufficient durability without deterioration by ultraviolet rays. When used on a large scale for industrial use, it is preferable to use the product in a can.

[0024]

EFFECT OF THE INVENTION The repair material of the present invention has an effect that it is highly resistant to ultraviolet rays and has durability because all the components including the material mainly containing sodium silicate, the inorganic fine powder and the alkaline agent are inorganic materials. ..

Further, in the present invention, when used, a paste-like composition in which a material containing sodium silicate as a main component and an inorganic fine powder are mixed, and an alkali agent are mixed as they are to form a crack on the outer wall. The filling caused hardening of the repair material within minutes to tens of minutes. By using this repair material, it is not necessary to add water at the time of mixing, unlike the conventional cement-based repair material, so that there is an effect that the work can be performed easily and in a short time.

Claims (2)

[Claims] 1. An inorganic repair material, characterized in that a paste-like composition obtained by mixing a material containing sodium silicate as a main component and an inorganic fine powder and an alkaline agent are separately stored in a container. .. 2. In use, from a container containing a composition in which a material containing sodium silicate as a main component and an inorganic fine powder are dispersed and which is dispersed in a paste, and another container containing an alkaline agent. A method of using an inorganic repairing material, characterized in that the composition and the alkaline agent are respectively taken out and they are mixed as they are on the spot.