JP3069507U - Block-shaped or layered pavement structure containing weather-resistant water-permeable fiberized resin - Google Patents

Abstract

[PROBLEMS] To provide a block-shaped or layered weather-resistant and water-permeable pavement structure containing an epoxy-based fibrous resin having weather resistance and no dripping. SOLUTION: An alicyclic epoxy resin in which an aromatic benzene ring is substituted by a reduction reaction, and a ceramic wool, glass wool, metal, carbon or polymer fiber having a fiber diameter of 100 μm or less and a fiber length of 1 mm or less are used. The weatherable epoxy fiberized resin obtained by kneading is formed into a block-shaped or layered structure. A weatherable epoxy-based fiberized resin and an aggregate such as gravel, crushed stone, shells, glass cullet of industrial waste, and molten slag are kneaded to form a block-shaped or layered pavement structure. A weathering-resistant, non-yellowing hardening agent and / or a hardening control catalyst composed of a compound containing no aromatic benzene ring may be added.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a pavement structure using a fibrous resin or a pavement structure using a fibrous resin as a binder. And a permeable pavement structure.

[0002]

[Prior art]

 Conventionally, synthetic resins have been used as binders for structures such as paving materials.In addition, in order to reduce the dripping of liquid synthetic resin and uneven strength and water permeability of the structure due to uneven binder, It is known to use a fiberized resin obtained by kneading fibers with a binder (for example, Japanese Utility Model Laid-Open No. 11808/1990 and Japanese Patent Laid-Open No. 11-60322).

[0003] As a resin material of a conventional fiberized resin for a binder, an epoxy resin is frequently used because of its strength and cost as a binder, but the conventional epoxy resin is mainly composed of bisphenol A diglycidyl ether, Since it is a bisphenol-type epoxy resin such as bisphenol F diglycidyl ether, bisphenol S diglycidyl ether, and alkylphenol novolac glycidyl ether, when it is used as a fiberized resin for a binder, the following problems occur. .

[0004]

[Problems to be solved by the invention]

 That is, the conventional pavement material using a bisphenol-type epoxy fiberized resin as a binder becomes yellowish or loses its luster about six months after the application, and the aesthetic appearance of the pavement is significantly impaired. I will be. Since paving materials are used in fields where aesthetics are important, such as sidewalks, parks, and buildings, alteration such as yellowing is a fatal problem, and improvement is required.

[0005] Accordingly, a first object of the present invention is to provide a block-like or fiber-like resin made of a weather-resistant epoxy-based fiberized resin that does not easily cause yellowing or loss of luster even after a long period of time and does not drip. Is to provide a layered pavement structure.

A second object of the present invention is to use the above-mentioned weatherable epoxy-based fiberized resin as a binder, so that deterioration such as yellowing hardly occurs even after a long period of time, and strength unevenness. Another object of the present invention is to provide a block-shaped or layered pavement structure having no unevenness in water permeability or water permeability.

[0007]

[Means for Solving the Problems]

 In order to achieve the first object, the block-shaped or layered pavement structure of the present invention comprises an alicyclic epoxy resin having an aromatic benzene ring substituted by a reduction reaction, a fiber diameter of 100 μm or less, and a fiber length of 100 μm. It is characterized by being formed into a block or layer of a weather-resistant epoxy fibrous resin obtained by kneading ceramic wool, glass wool, metal, carbon or a polymer fiber of 1 mm or less.

[0008] The epoxy fibrous resin used for the block-shaped or layered pavement structure may be added with a curing agent or a curing control catalyst. In this case, the curing agent and the catalyst to be added are: A weather-resistant, non-yellowing compound containing no aromatic benzene ring is preferred.

In order to achieve the second object, the block-shaped or layered pavement structure of the present invention comprises an alicyclic epoxy resin having an aromatic benzene ring substituted by a reduction reaction, and a fiber diameter of 100 μm or less. , A hardening agent and / or a curing control catalyst are added to a weather-resistant epoxy fiberized resin obtained by kneading a fiber of ceramic wool, glass wool, metal, carbon or a polymer material having a fiber length of 1 mm or less, It is characterized by being kneaded with aggregates such as crushed stones, shells, glass cullet of industrial waste, and molten slag, and formed into blocks or layers.

The curing agent and the catalyst used for solidifying the structure of the present invention are preferably an alicyclic compound modified by a reduction reaction, that is, an aromatic compound by a reduction reaction. Use an alicyclic compound modified to a weather-resistant, hardly yellowing compound that does not contain a benzene ring.

[0011]

[Embodiment of the invention]

 The present inventors have conducted intensive studies on the cause of the conventional bisphenol type epoxy resin and the paving material using this resin as a binder yellowing in a short period of time, and as a result, the bisphenol type epoxy resin is contained in the component. Has an aromatic benzene ring, which makes it more susceptible to ultraviolet light, and has reached the idea that this is the main cause of yellowing. It has been found that the yellowing is suppressed by modifying the composition to give excellent weather resistance.

Based on this idea, as shown in FIG. 1, the present invention uses a conventional bisphenol-type epoxy resin by a reduction reaction to form an alicyclic weather-resistant epoxy resin 1 having no aromatic benzene ring (for example, as shown in FIG. 1). , An epoxy resin containing an alicyclic diol diglycidyl ether as a main component) and a weather-resistant epoxy resin 1 obtained by this modification, and ceramic wool having a fiber diameter of less than 100 microns and a fiber length of 1 mm or less. A new weather resistant epoxy resin for binders that is uniformly mixed with fibers 2 of glass wool, metal, carbon, polymer material, etc. at 30 to 50 ° C. and is not easily yellowed and does not cause dripping of resin. The fiberized fibrous resin 3 is obtained and formed into a pavement structure by forming it into a block or layer.

When a curing agent or a curing control catalyst is added to the weatherable epoxy fiberized resin 3, it is modified by a reduction reaction to a compound containing no aromatic benzene ring, for example, an alicyclic polyamine. By using a non-yellowing alicyclic compound containing, as a main component, a weathering-resistant epoxy fibrous resin in which yellowing caused by a curing agent or a catalyst is also suppressed.

Further, as shown in FIG. 2, the present invention is preferably applied to the above-mentioned weather-resistant epoxy fiberized resin 3 which does not easily turn yellow, preferably to the above-mentioned weather-resistant hardening agent which does not easily turn yellow or a curing control agent. A medium is added, and the mixture is used as a binder, uniformly mixed with aggregate 4 such as natural stone gravel, crushed stone, sand, shells, industrial waste glass cullet, and molten slag, and then molded and hardened into blocks of an appropriate shape. Alternatively, it is formed into a layered pavement structure to obtain a weather-resistant and water-permeable pavement structure 5.

The block-shaped or layered pavement structure 5 using the weather-resistant epoxy fiberized resin 3 of the present invention uses an alicyclic epoxy resin having no aromatic benzene ring in the resin. Therefore, it is hardly affected by ultraviolet rays and hardly causes yellowing or loss of gloss even after a long period of time. The weatherable epoxy-based fibrous resin 3 used in the block-shaped or layered pavement structure 5 of the present invention is obtained by kneading the weather-resistant epoxy-based resin 1 and the fibers 2 described above. The formed structure 5 has no resin dripping phenomenon, has a uniform mixture strength between the upper layer and the lower layer, has a sufficient porosity in the lower layer, and has water permeability.

In the present invention, the reason why the weather-resistant epoxy resin 1 and the fibers 2 are mixed at a temperature of 30 to 50 ° C. is that if the temperature is lower than 30 ° C., the viscosity of the weather-resistant epoxy resin 1 is high, and the fibers or filaments This is because the mixing performance tends to decrease, and if it exceeds 50 ° C, there is a problem that the decomposability increases and it is difficult to guarantee the physical properties.

Example 1 15 to 50 g of ceramic wool and 50 g of glass wool were added to 1000 g of a weather-resistant epoxy resin having no aromatic benzene ring and containing an epoxy resin of an alicyclic diol / diglycidyl ether as a main component. To 200 g, 100 to 200 g of a quartz filament and 10 to 60 g of a thickening agent, and 450 to 500 g of a weather-resistant, non-yellowing type curing agent containing a modified alicyclic polyamine as a main component is added thereto. Knead with weatherable epoxy fiberized resin. 25 to 30 kg of the weather-resistant epoxy fiberized resin was uniformly mixed with the aggregate (4 to 6 mm light-colored, white gravel), and after curing for one day, a structure of the weather-resistant epoxy fiberized resin was obtained. . The structure had a flexural strength of 113 kgf / cm2 and a compressive strength of 304 kgf / cm2, which was sufficient. Further, the porosity was 20 to 30% and was characterized by having good water permeability.

Comparative Example 1 Fibers of 50 to 80 g of rock wool, 25 to 50 g of glass wool, and 5 to 45 g of a thickener are kneaded with 1000 g of a bisphenol-type epoxy resin containing bisphenol A diglycidyl ether as a main component. At the same time, 350 to 400 g of an epoxy-based curing agent containing a modified aliphatic polyamine as a main component is added thereto, and the mixture is kneaded with a general-purpose bisphenol-type epoxy fibrous resin to form a general-purpose bisphenol-type epoxy fiber. After 25 to 30 kg of the modified resin was uniformly mixed with the aggregate (4 to 6 mm light color, white gravel) and cured for one day, a general-purpose bisphenol-type epoxy fiberized resin structure was obtained. The flexural strength of the structure is 102 kgf / cm 2, which is not so weak, but has a weak point of yellowing over time.

A yellowing exposure experiment was performed on the structure of Example 1 using a weather-resistant epoxy fiberized resin as a binder of the structure and the structure of Comparative Example 1 using a bisphenol-type epoxy fiberized resin. The comparison is shown in Table 1 below.

[Table 1]

Next, the yellowing of the structures of Example 1 and Comparative Example 1 over time is shown in Table 2 below.

[Table 2] UV Carbon Arc Accelerated Weathering Tester 700-800μm thick, black panel temperature 70-80 ° C

As shown in Table 1, an exposure experiment was performed for one year using white aggregate. The result is that, as in Example 1, the aggregate remains almost white, and yellowing remains to the extent not visible to the naked eye, and does not affect the aesthetic appearance of the pavement. This is because both the weatherable epoxy resin, the curing agent and the accelerating catalyst have a non-aromatic structure. On the other hand, in the case of Comparative Example 1, yellowing of the aggregate surface started after one month, and after 6 months, the degree of yellowing became severe and turned to true yellow. This is because the bisphenol-type epoxy resin has an aromatic benzene ring structure, and the curing agent and the accelerating catalyst also have an aromatic benzene ring structure, which makes it easier to absorb ultraviolet light. In addition, Table 2 shows that Example 1 is more resistant to yellowing than Comparative Example 1. Moreover, it can be seen that the degree of yellowing gradually becomes clear as time passes.

[0022]

【effect】

 The pavement structure of the present invention using the above-mentioned weatherable epoxy-based fiberized resin removes the aromatic benzene ring, which causes the yellowing of the bisphenol-type epoxy resin, and modifies it into an alicyclic epoxy resin. As a result, yellowing and disappearance of luminous flux, which have been problems in the past, are suppressed over time, and the original aesthetic appearance can be maintained for a long period of time.

Further, the strength as a binder is not impaired by the modification of the epoxy resin component.

By using a hard-to-yellowing type curing agent and an effect-adjusting catalyst, the binder and the structure are not yellowed by the additive, and are hardly discernible even to a long period of time by the naked eye. Become something.

The above-mentioned weather-resistant epoxy resin is mixed with fibers of ceramic wool, glass wool, metal, carbon or a polymer material at a temperature of 30 to 50 ° C. to form a fibrous resin. When this is done, there is no dripping of the resin and no unevenness in water permeability and bonding strength.

[Brief description of the drawings]

FIG. 1 shows a paste-like weather-resistant epoxy fiberized resin according to the present invention.

FIG. 2 is a partial cross-sectional structural view of a structure formed by using a weatherable epoxy fiberized resin as a binder in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Weather-resistant epoxy resin 2 ... Fiber 3 ... Weather-resistant epoxy fiberized resin 4 ... Aggregate 5 ... Structure

[Reference number] UMS99002

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI E01C 7/30 B29C 67/14 G // B29K 63:00 U 105: 12 B29L 31:10

Claims (4)

[Utility model registration claims] 1. An alicyclic epoxy resin having an aromatic benzene ring substituted by a reduction reaction, and ceramic wool, glass wool, metal, carbon or polymer fiber having a fiber diameter of 100 μm or less and a fiber length of 1 mm or less. Or layered pavement structure obtained by molding a weather-resistant epoxy fibrous resin kneaded with a resin into a block shape or a layer shape. 2. A weather-resistant, epoxy-based fibrous resin to which a weathering-resistant, non-yellowing hardening agent and / or a hardening-adjusting catalyst comprising a compound containing no aromatic benzene ring is added. The pavement structure according to claim 1, wherein: 3. An alicyclic epoxy resin having an aromatic benzene ring substituted by a reduction reaction, and a ceramic wool, glass wool, metal, carbon or polymer material fiber having a fiber diameter of 100 μm or less and a fiber length of 1 mm or less. A curing agent and / or a curing control catalyst is added to a weather-resistant epoxy fiberized resin kneaded with, and the mixture is kneaded with aggregates such as gravel, crushed stone, shells, glass cullet of industrial waste, and molten slag to block. Block-shaped or layered pavement structure characterized by being shaped into a shape or a layer 4. The block-shaped or layered pavement according to claim 3, wherein the added curing agent and / or curing control catalyst is a compound having no aromatic benzene ring and being resistant to yellowing. Structure