JPS60127255A - Gravel-like composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] In approaches from gates to buildings, balconies, verandas, terraces, utilities, passageways or gardens, schoolyards, and other buildings, the surface of the ground is covered with tiles or gravel. are placed or pasted.

In the construction, there are cases where gravel is simply laid down,
When gravel is hardened with cement and a part of the gravel is painted with surface gravel and cement, the external area ratio of the gravel surface to the cement surface is approximately (3-7):(7-3).

In this case, the first problem in terms of appearance is the contrast between the colors of cement and gravel. In other words, it is preferable for gravel to have a darker color than the color of cement as a binder because it provides a clearer contrast.

Next, from a functional point of view, the spaces between gravel are uniformly coated and filled with cement, forming so-called joints, which improve drainage on the coated surface.

In addition, the mixing ratio of gravel and cement is determined by taking into account factors such as the degree of adhesion to the foundation and the degree of bonding between gravel.

Conventional products have a relatively smooth finished surface and lack a three-dimensional effect, and although they remove water, water collects in the joints and forms a stanchial film on other parts, making them slippery. , the danger was great.

The present invention eliminates these drawbacks.

In other words, the gist is that a synthetic material that can react with or bond to the main gravel-like material is used as a binder, and is applied and solidified without filling the surfaces between the gravel-like materials with joints. By forming voids and taking advantage of the unique shape and naturalness of gravel-like materials, water is absorbed and removed to improve safety.

For details, an example of implementation will be described next.

In the composition, wet gravel is first stirred, then a mixture of epoxide and castor oil as a diluent is added to form a homogeneous mixture, and then an aliphatic amine as a hardening agent is added to form a homogeneous mixture. This is spread to a predetermined thickness by a conventional coating method, and left to cure at room temperature to obtain gravel and a synthetic resin composition.

In this example, the epoxide is uncolored and used in a small amount compared to the gravel, and just by wetting the gravel surface, it becomes a binder for the gravel, making the most of the color of the gravel itself, and in this case, creating a binder for the gravel. Because the gravel is formed in the sand, it has good drainage, and the condition of gravel distribution does not change due to pressure caused by walking or the like.

The gravel used in the present invention may range from sandy to small gravel to cobblestone, and there is no need to limit the size of the gravel.
Inorganic small lumps and organic small lumps (wood, plastics), etc. can also be used.

The epoxide forming the epoxy resin is a glycidyl type, bisphenol type, novolac type, alkylphenol type, resorcinol type, polyglycol type, ester type, etc., and has a relatively low molecular weight (for example, 350 or less) and is easy to use in liquid form.

As curing agents, amine compounds such as aliphatic primary amines (ethylenediamine, triethylenetetramine), secondary amines (imidazole), aromatic primary amines (diamino Schiff, nonyl methane), tertiary amines (triethylamine) can be used. , aminoethyl hyherazine) and modified amines.

In order to make the mixing and dispersion of the base agent and binder uniform, it is often necessary to adjust the viscosity of the liquid component of the composition as a binder.

Examples of viscosity modifiers include reactive diluents such as propylene oxide, epichlorohydrin, n-butyl glycidyl ether, semi-reactive diluents such as alkyl(nonyl)phenols, polyglycols, butyrolactone, and non-reactive diluents such as alkyl(nonyl)phenol, polyglycol, butyrolactone. Dibutyl phthalate, dioctyl phthalate, xylene, castor oil, vinegar oil, etc. can be used.

In addition, to color the liquid component as a binder for gravel, mix epoxide or a mixture of epoxide and diluent with dye or pigment (adding a dispersant as necessary) in a kneader, butterfly mixer, or planetary mixer. It is also recommended to use three rolls to disperse the mixture well.

In the composition, for each binder other than the main ingredient gravel, the following range is appropriate based on the intended use as a binder, based on 100 parts by weight of the main ingredient gravel.

In addition, when molding the composition, if it is a flat surface, pour it and prepare it with a ``trowel.'' If molded into a block or cube, apply a mold release agent to the mold, or apply release paper or film. The desired product can be obtained by inserting the resin, pouring the composition therein, and accelerating curing by heating at room temperature or if necessary.

In addition, in order to promote and strengthen the bond with the main material, it is useful to pre-treat the main material by wetting it with a coupling agent such as silane, titanium, or other organic phosphorus compounds to increase the bonding strength. .

In addition, as a binder, there are of course epoxide mixed types (epoxide-polyamide, polysulfide, silicone, nitrile rubber) used as structural adhesives,
Phenolic groups (phenolic vinyl, nitrile, neoprene), etc. can also be used.

Conventional cement does not have strong binding force when used in small quantities;
In comparison, these binders lose their shape even with a weak force.
A strong bond can be obtained even when the surface of the main material is wetted.

As described above, the present invention achieves a natural appearance that takes advantage of the main material itself, which was not possible before, by mixing gravel-like materials with a synthetic structural binder at a level below the level that forms joints, and solidifying the mixture. The gaps formed by the unevenness and the shape of the main material, that is, the porous material, improves drainage, makes it difficult to slip, has the function of reducing weight as a porous material, and has the added value of ease of construction, making it a great building material. It is expected that it will be used.

Claims (1)

[Claims] A curing agent, a diluent,
Add 3 parts of epoxide and phenolic structural binder, including a coloring agent if necessary, to a level that wets the base resin.
1. A gravel-like composition characterized in that it can be mixed in between 0 parts and applied on a flat surface or molded, and then reacted and solidified.