JP2005281413A - Two components-reacting type construction material and method for using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two components-reacting type construction material having advantageous points such as being easily pulverized and mixed together with the packaging material because both of the container and the lid are made of a vegetable material, and hardly causing environmental pollution because the packaging material is returned to the natural. <P>SOLUTION: The two components-reacting type construction material is used by mixing a main material such as a calking compound and a sealing material for stopping water and carrying out filling at civil work or building work, with a hardening agent in a prescribed proportion. The main agent and the hardening agent are charged in containers 2 obtained by subjecting a starchy material obtained from the vegetable material such as glutinous rice to water-adding and heating treatment and molding the resultant product, respectively, and packaged by putting the lids 1 thereon. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is a construction material such as a two-component reaction-curing type caulking material, sealing material, adhesive, etc. used in various constructions such as joint caulking and adhesion of members, waterproofing of concrete structures, etc. in civil engineering and construction work In construction, there is no need to use special machines, construction tools or mixing containers, etc., and it is easy and easy to mix two components. And a method of using the same.

  There are many cases in which construction materials such as two-component reaction curing type caulking materials, sealing materials, adhesives, etc., which are used by mixing a main agent and a curing agent, are used in civil engineering and building construction. These include those that bond concrete structures, those that fill joints between concrete and concrete, those that bond concrete and steel members, and concrete secondary products manufactured in the factory. There are a wide variety of products such as those that bond the joints when joining together to fill gaps, and those that attach a member such as a PVC branch pipe to a secondary concrete product such as a fume pipe.

These two-component reaction curing type caulking materials, sealing materials, adhesives, etc. are classified based on the main agent (main component), epoxy resin system, polyurethane system, silicone system, modified silicone system, polysulfide system, polyester system. Acryl resin, MMA (methyl methacryl) resin, and the like. Moreover, each material is classified into the following forms.
(1). Liquid casting (self-leveling type)
(2). Liquid applied to the adhesive surface
(3). Putty-like mixture that does not sag even on a vertical surface (non-sagging type)
(Four). Similarly, a creamy one that can be thickened without any mixture
(Five). Things that can be mixed and used by hand like clay.

Examples of those that are poured in liquid form include seals on joints of concrete paving surfaces such as airports, roads, tunnels, and plazas, and backfilling injection materials when installing concrete structures. It is done.
What is applied to the adhesive surface in a liquid state has a use of brushing or spraying the joint surface when jointing the concrete. Some of these are general adhesives or waterproofing agents applied to the surface of concrete structures.
A putty-like material (non-sagging type) in which the mixture is not vertical is a typical application for joint sealing of structures in various architectures and civil engineering. Sealing such as joints of cast-in-place concrete structures and joints of building outer walls. It is often used for joints of box culverts made of reinforced concrete or prestressed concrete. This box culvert is a box-shaped concrete secondary product, and is used in waterways, passages, common ditches, recreation areas, fire prevention water tanks, etc.

  The creamy one that can be thickened without any mixture is used for similar sealing applications. It is also used for bonding other parts to uneven surfaces using the creamy properties. For example, an epoxy adhesive used for bonding a concrete car stopper block to an asphalt concrete pavement surface. In addition, there are various adhesive applications that take advantage of the property that the thickness cannot be increased even on a vertical surface.

Next, there are many applications related to underground structures that are mixed by hand like clay. The main thing is that when building a shield tunnel, there is a joint between the concrete segments (members that become ring-shaped when assembled), but there is a material that fills this and stops water. After the segments are assembled in a tunnel shape, clay-like filler is kneaded and pushed into the joint. Such special fillers are useful because they can be constructed not only on the horizontal and vertical surfaces but also on the ceiling surface and with good workability.
In addition, many clay-like adhesives are used for joining other pipes to manholes buried underground, water pipes made of concrete, and fixing branch pipes made of PVC. There are many adhesive systems based on epoxy resins, which include those that become hard and hard when cured, and those that are strong but “flexible” with flexure and elongation.

These two-component reaction curing type caulking materials, sealing materials, adhesives, etc. are of various types and have a variety of uses, but their usage and construction methods are excellent with very special features. There is no current situation.
There are various materials such as liquid, putty-like, cream-like, and clay-like materials, but the most common material form is one in which two liquids of the main agent and curing agent are each put in a container such as a can. It is. Containers include metal cans, plastic cans, and paper cans. When used, each agent (material) is taken out from the container containing the main agent and curing agent, and mixed into one container. Transfer and mix the ingredients.

  The liquid material is usually contained in a container (can), and can be easily transferred to another container or mixed with the main agent and the curing agent. A liquid thing can also be transferred using a pump. However, it is difficult to send putty-like, cream-like, and clay-like materials with a pump or the like, so it must be taken out manually using a spatula or the like, but taking out with a spatula or the like is very time consuming. The clay-like material is so powerful that it cannot be easily scooped with a spatula and may be removed with a hand wearing rubber gloves. As described above, the main agent and the curing agent are most commonly used in a can, but there are many practical problems in materials with high viscosity.

  There are relatively many cases where the main ingredient and hardening agent are put in the tube instead of the can. This is widely used for adhesives and is convenient if it has a relatively small capacity. Extrude the base agent and curing agent in the same amount on something and mix with a spatula or something. However, unlike household adhesives, when used as a construction material, the amount used is large and the number of tubes is also large. In the construction site, waste must be reduced, which is a difficult form in practice.

Other forms include a resin cartridge or a film pack in which the main agent and the curing agent are sealed. These use a construction tool that pushes out and mixes the contents of a cartridge such as a dedicated cartridge gun.
The construction method in this form is extremely simple and fast, but on the other hand, a material with high viscosity cannot be used. When the viscosity is high, a large resistance is applied to extrude the material with a construction tool called a cartridge gun, and a large force is required accordingly. It cannot be used when a large amount of material must be continuously applied.
As another form of the material, there is a material in which a clay-like material is formed into a rod shape or a block shape and the periphery thereof is wrapped with a release paper or a release film. When used, the release paper is peeled off and the main agent and curing agent are mixed and used, but this type of material can be formed into a rod or block shape, which is a material that does not adhere to the release paper, that is, it is quite hard Limited to materials.

As a special one, there is a liquid in which the main agent and the curing agent are liquid. This material is used as a material for embedding and reinforcing anchors such as anchor bars in concrete and other foundations in civil engineering and construction work. Generally called a chemical anchor, a glass container containing a curing agent is placed in a glass container containing a base material that is slightly larger than the glass container. The container is broken into pieces, and the anchor agent is fixedly bonded by mixing the main agent and the curing agent.
It has good workability and is a simple construction method, but it uses broken glass, so it has a limited application.

  As a result of intensive studies, the present inventors have found that the two-component reaction curing type caulking material, sealing material, adhesive, and the like are simple and have good workability, no waste, and are environmentally friendly. Invented materials and methods required by society. The present invention will be described in detail below.

The present invention is a construction material such as caulking material or sealing material, adhesive, etc. for waterproofing and filling in civil engineering and construction work, and filling and packaging the main agent and curing agent in the exterior (container) made of plant material A two-component reaction type construction material characterized by being enclosed in an exterior made of “middle skin” formed by heat-treating starch obtained from cereal grains such as rice How to use.
When the construction material of the present invention is used, when the main agent sealed in the exterior and the curing agent are mixed, the exterior is made of a vegetable fragile material. It is characterized in that it is taken into a construction material such as a sealing material and an adhesive and cured. In particular, it is an epoch-making thing that can be applied to clay-like, putty-like, or cream-like construction materials.

  Since the construction material of the present invention is filled in a container made of a vegetable material mainly composed of starch, the main agent and the curing agent (hereinafter referred to as a starch container), the container is pulverized and mixed together at the time of use. The main agent and curing agent can be easily mixed and used as a caulking material. Starch containers are somewhat difficult in terms of water resistance, but they are resistant to organic solvents and chemicals, can be easily finely pulverized, and can be evenly dispersed in the construction material, which impairs adhesive strength and sealing properties. There is nothing. In addition, there is an advantage that no substances polluting the environment are generated by use.

The exterior (container) used in the present invention is made of a plant substance such as starch, and specifically, the starchy thing such as the “midway” skin or rice cracker of the foodstuff is used for water. In addition, it is made by kneading, heat treatment, molding and baking. In the case of skin or rice cracker in the middle, rice powder is steamed with water, kneaded and formed into a sheet, and this sheet is left as it is or dried and baked in a mold of the specified shape create.
The starch quality is collected from grains such as rice and wheat, plants such as corn and potato, and the kind is not limited.
The starchy container can be in any shape without any particular limitation such as a box shape or a cylindrical shape. The container may be baked slightly hard according to the main agent to be filled, or the container may be thickened to have the required strength, but it is preferable that the container be easily pulverized.

The main agent and curing agent may be put in separate starch containers, and each may be mixed on site at the time of use, and a partition is provided in the container to put the main agent and curing agent in one container. Each of the partitions may be filled. In addition, one container, for example, a container for the main agent may be made large, and a container containing a curing agent may be put in the main agent container to form one container.
Since the container is easily pulverized, the main agent and the curing agent may be mixed by hand with a rubber glove, and may be performed using a simple stirrer or kneader. By mixing, the starch container is gradually shattered and taken into the main agent and the curing agent, and finally dispersed in the caulking material, adhesive, and sealing material.
When airtightness and watertightness are required for construction parts made of caulking materials, etc., use in an amount that pulverized container powder is completely wrapped in caulking materials, etc. By using the container powder in such an amount that it is wrapped incompletely, the container powder can be dissolved or decomposed after curing to obtain the required air permeability and water permeability.

An example of the shape of the container will be described with reference to the drawings.
FIG. 1 is an example in which a main agent and a curing agent are filled and packaged in separate containers, and FIG. 1A shows a lid 1 and a container 2 that have a circular bowl shape like a “middle skin”. (B) shows a state in which the lid 1 is put on the container 2.
FIG. 2 shows an example in which the container 21 is box-shaped and a room 31 is provided in which a partition 31 is placed and the main agent and the curing agent are placed. The container 21 may be covered with the lid 11, but the lid is unnecessary when the main agent or the like is in the form of paste or clay.
FIG. 3 shows an example in which the container 22 is cylindrical and the partition 32 in the container is cylindrical. Reference numeral 12 denotes a lid.
FIG. 4 shows an example in which a large number of partitions 33 are provided in the container 23 to alternately provide a main agent chamber a and a curing agent chamber b. Reference numeral 13 denotes a lid.
FIG. 5 shows an example in which a small container 24 is placed in a large container 2 and the containers 1 and 14 are respectively completed to complete the container. For example, the main agent is put in the large container 2 and the curing agent is put in the small container.

Since the shape of the container can be freely molded, it may be shaped according to the composition ratio and properties of the caulking material, the adhesive, and the main curing agent of the sealing material. For example, a curing agent may be placed inside the main agent (FIG. 3), or a number of main agents and curing agents may be alternately arranged (FIG. 4).
The container in the present invention is used for packaging the main agent and the curing agent separately, and for the purpose of supplementing the strength of the container, the container is put in a box made of plastic or metal and supplied to the use site. May be.

Use of the product of the present invention produces many advantages. First of all, it is easy to take out the material. Conventionally, the material in the can was taken out little by little with a spatula, or grabbed with a hand with rubber gloves. And will not get your hands dirty. When mixing a small amount of materials, special mixing machines and mixing tools are not required.
Conventionally used containers such as cans and plastics become unnecessary, and waste can be reduced. The exterior is starchy and harmless. In other words, it is environmentally friendly.
Furthermore, since the entire exterior is mixed as it is, no on-site weight measurement is required and there is no possibility of causing poor mixing.
Overall, the workability is improved, so the construction speed is increased, and at the same time, the cost of waste disposal can be reduced.

Example: Using rice as a raw material, adding water to this and heat-treating it, preparing two sheets of leather (diameter 6 cm, weight 4 g) obtained by thinly shaping and baking in a predetermined mold, 120 g of the main component of the epoxy resin clay adhesive (mixing ratio 1: 1) was sandwiched inside. Next, in the same manner, 120 g of the adhesive curing agent was sandwiched between the two middle skins.
These were mixed by hand wearing rubber gloves and mixed until the middle skin was shattered and dispersed (Example of the present invention).
Separately from the above, 120 g of the same epoxy resin clay adhesive and 120 g of curing agent were mixed (comparative example).
A specimen of a JIS standard test method was prepared from the kneaded material of both the above Examples and Comparative Examples, and the specific gravity, tensile strength, compressive strength, and bending strength were measured.
Table 1 shows the results of the JIS standard test.

この結果のように本発明はエポキシ樹脂接着剤がでんぷん質の外装を粉砕して取り込んでいるが、その引張強度、圧縮強度、曲げ強度に大きな変化は無く、性状的にも優れている。

As shown in this result, the epoxy resin adhesive pulverizes and takes in the starchy outer casing, but the tensile strength, compressive strength and bending strength are not greatly changed, and the properties are excellent.

The features of the present invention are as follows.
1. The material can be easily taken out and the construction speed is improved.
2. No special mixing machine or mixing tool is required.
3. The exterior is taken into the cured product and functions as a filler for the cured product.
4). Conventionally used containers such as cans and plastics are not necessary, and waste can be reduced.
5). Because the exterior is starchy, it is soluble in water and returned to the soil, which is harmless. Environmentally friendly.
6). Since the main agent and the curing agent, which have been weighed in advance to the required amount, are mixed together as they are, the weight measurement at the site is unnecessary and there is no possibility of poor mixing.

It is a figure which shows one Example of a container. It is a figure which shows the example of the box-shaped container which provided the partition. It is a figure which shows the example of the circular container which provided the partition. It is a figure which shows the example of the container which provided many partitions. It is a figure which shows the example of the container which put the small container in the large container.

Explanation of symbols

1, 11, 12, 13: Lid 2, 21, 22, 23: Container 31, 32, 33: Partition

Claims (5)

  It is a construction material that cures by mixing two ingredients of caulking material or sealing material, adhesive, and main agent and curing agent in civil engineering work and construction work at a predetermined ratio. A two-component reaction-type construction material characterized in that the starchy material obtained from plant substances such as glutinous rice is packed in a package (container) formed by hydrothermal treatment.   2. When the main agent and the curing agent filled and packaged in the outer package are mixed, the outer package is pulverized by the mixing operation to become finer, and is taken into a mixture of the main agent and the curing agent to be cured. The construction material described.   3. The outer packaging filled and packaged with the main agent and the curing agent is formed using a powder of vegetable substances such as rice, wheat, corn or the like, or starch obtained therefrom. Construction material.   The construction material according to claim 1, wherein a partition or the like is provided in one exterior and both the main agent and the curing agent are packaged and filled together. A construction method for civil engineering / construction, etc., characterized by performing caulking, sealing, adhesion, or the like comprising using the construction material according to claim 1.

Images