JP2003336207A - Permeable structure and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a permeable structure, which has high water permeability and mechanical strength while having excellent weather resistance and ultraviolet resistance characteristics and in which breaking, warping, crack, peeling, gap or the like hardly occurs over a long term. <P>SOLUTION: The permeable structure is composed of a waste-material ground product and the cured substance of an organic polysiloxane-polyoxyalkylene copolymer. The permeable structure contains (i) a paving body in which a paving material containing the waste-material ground product and the copolymer is cured on a bedrock, (ii) the paving body in which a cast cured substance comprising the ground product and the copolymer is bonded on the bedrock and (iii) the cast cured substance or the like of the mixture of the ground product and the copolymer. The ground product may also comprise at least a waste- plastic ground product. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a water-permeable structure such as a sidewalk, a park road, a platform, a pedestrian bridge, a water-permeable structure such as a horticultural water-permeable pot, a method for producing the same, and a method for producing the water-permeable structure. The present invention relates to a pavement material useful for, and a cast cured product of the pavement material.

[0002]

2. Description of the Related Art Conventionally, concrete and asphalt have been widely used for pavement on roads and sidewalks, but since they generally do not have water permeability, surface water concentrates on gutters etc. when a large amount of precipitation occurs. Roads were frequently flooded locally. In order to solve this, concrete pavement is performed with water-permeable joints left, but with this method, joints are depressed, sand flows backward from the joints, and weeds grow. The problem arises.

On the other hand, as a pavement for sidewalks, park roads, etc., there has been proposed a construction in which a resin pavement in which an aggregate is hardened with a resin is laid on a roadbed or a concrete base layer. For example, JP-A-6
JP-A-4-29502 discloses a water-permeable pavement including an upper layer in which an aggregate is connected with an epoxy-based or urethane-based resin adhesive, a water-permeable lower layer, and an adhesive layer interposed between the upper layer and the lower layer. It is disclosed. Japanese Unexamined Patent Publication No. 11-114540 discloses a board-like paving material in which crushed plastics are fixed with urethane resin or epoxy resin. Japanese Unexamined Patent Publication No. 2001-234503 discloses a water-permeable pavement obtained by mixing an aggregate such as brick and an epoxy resin adhesive. In addition, JP-A-11
No. 247118 discloses a water-permeable soil pavement by laying on a roadbed a mixed material obtained by kneading aggregated soil obtained from natural soil and a coagulant and a urethane-based resin binder and rolling the mixture evenly. A method of forming is disclosed.

However, a pavement using an epoxy resin or a urethane resin as a binder has low weather resistance and ultraviolet resistance, and the pavement is chipped or warped in a relatively short period of time and shrinks in winter. There is a drawback that there are gaps. When an epoxy-based or urethane-based binder is used, the volatile components contained in the binder are volatilized after curing to form voids, which often cause cracking or peeling. Furthermore, epoxy resins and urethane resins are usually two-part mixed type, but when two parts are mixed during use, curing progresses rapidly, so the kneaded material of aggregate and binder is laid on the roadbed within a short time. There is also a problem that it is difficult to carry out the repair work. In addition, plant seeds are implanted and weeds easily grow.

[0005]

Therefore, an object of the present invention is to have high water permeability and mechanical strength, excellent weather resistance and ultraviolet resistance, and to provide a long-term chipping or warping,
It is to provide a water-permeable structure that is unlikely to cause cracks, peeling, gaps, and the like. Another object of the present invention is to provide a water permeable structure which can be manufactured with good workability and which can be easily modified. Still another object of the present invention is to provide a water-permeable structure in which weeds hardly grow. Another object of the present invention is to provide a method for easily producing a water-permeable structure having the above-mentioned excellent properties.
Still another object of the present invention is to provide a pavement material useful for obtaining a water-permeable structure having the above properties, and a cast cured product of the pavement material.

[0006]

Means for Solving the Problems As a result of intensive studies for achieving the above-mentioned object, the inventors of the present invention mixed a pulverized product of waste materials such as waste plastic with a specific silicone polymer to cure the polymer. And, having not only high water permeability and mechanical strength, but also excellent weather resistance and ultraviolet resistance properties, it was found that a water permeable structure that does not cause chipping, warpage, cracking, etc. even after long-term use can be obtained, The present invention has been completed.

That is, the present invention provides a water-permeable structure comprising a pulverized waste material and a cured product of an organic polysiloxane-polyoxyalkylene copolymer.

This water-permeable structure includes (i) a pavement obtained by curing a pavement material containing a ground waste material and an organic polysiloxane-polyoxyalkylene copolymer on a base, (i)
i) A pavement in which a cast cured product of a pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer is adhered onto a substrate, (iii) a pulverized waste material and an organic polysiloxane-polyoxy It includes a cast cured product of a mixture with an alkylene copolymer. The surface of the base can be made of, for example, soil, gravel, crushed stone, mortar, asphalt, concrete, resin, or the like. It is preferable that the pulverized material of the waste material contains at least a pulverized material of the waste plastic.

The organic polysiloxane-polyoxyalkylene copolymer has the following formula (1) R ₃ SiO (R ₂ SiO) _n SiR ₃ (1) [wherein R is independently a hydrogen atom, A substituted or unsubstituted monovalent hydrocarbon group or an acyl group is shown, and n is 1 to 1.
Indicates an integer of 0. However, 1 to 1 out of all existing R
5, the formula _{-C x H 2x O (C 2} H 4 O) y (C 3 H 6 O) z A
(In the formula, x independently represents an integer of 2 to 6, y independently represents an integer of 3 to 10, z independently represents an integer of 0 to 10, and A independently represents a hydrogen atom. , A substituted or unsubstituted monovalent hydrocarbon group, or a group represented by an acyl group)].

The present invention also provides a paving material containing a ground waste material and an organic polysiloxane-polyoxyalkylene copolymer.

The present invention further provides a cast cured pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer.

The present invention still further provides a method for producing a water-permeable structure characterized by casting and curing a mixture of a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer.

The present invention is also a water-permeable structure characterized in that a paving material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer is cured on a base to form a paving material. To provide a manufacturing method of. This manufacturing method includes a step of treating a substrate surface with a primer composed of an organic polysiloxane-polyoxyalkylene copolymer, and a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer on the primer-treated substrate. The step of laying and curing the paving material may be included.

In each of the above production methods, an isocyanate compound can be used as a curing agent.

The present invention is further characterized in that a pavement is formed by adhering a cast cured pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer onto a substrate. A method for producing a water-permeable structure is provided.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION [Water-permeable structure] The water-permeable structure of the present invention comprises a pulverized waste material as an aggregate and a cured product of an organic polysiloxane-polyoxyalkylene copolymer as a binder. ing.

Examples of the "waste material" in the pulverized waste material include waste plastic (thermoplastic resin such as polyester, polyolefin, styrene resin, methacrylic resin; thermosetting resin such as polyurethane), waste rubber, waste glass, And other waste materials (brick, roof tile, pottery, mustard,
Wood, paper, shells, charcoal, coal, slag, incineration ash, sludge,
Rice husks, sawdust, etc.). The waste materials may be used alone or in combination of two or more kinds. The waste material pulverized product can be obtained by pulverizing the waste material using an appropriate pulverizing means. When two or more kinds of waste materials are used, they can be obtained by once melting the waste material or its pulverized product, solidifying it, and pulverizing it. By using the crushed waste material as the aggregate, the waste material can be effectively used. Of these waste materials, waste plastic is particularly preferable.

The size of the pulverized waste material can be appropriately selected within a range that does not impair the workability in manufacturing the water-permeable structure, the water-permeable function and mechanical strength of the water-permeable structure, but is usually. , As an average particle size of about 0.3 to 50 mm,
Preferably about 0.5 to 20 mm, more preferably 1
It is about 10 mm.

Examples of the organic polysiloxane-polyoxyalkylene copolymer include the copolymer represented by the above formula (1). In the formula (1), 1 to 5 of all Rs present are represented by the formula —C _x H _2x O (C ₂ H ₄ O) _y.
It is a group represented by (C ₃ H ₆ O) _z A. When there are a plurality of this groups, they may be the same or different. Preferably from 1 to 3 of all Rs present, more preferably 1 or 2, most preferably 1 is this group. This group may be present at any position of the organic polysiloxane chain represented by the above formula, and may be present, for example, in the middle of the chain or at the terminal.

If the above conditions are satisfied, the other R's may be each independently a hydrogen atom, a substituted or unsubstituted monovalent hydrocarbon group or an acyl group. Among them, as other R, an alkyl group having 1 to 8 carbon atoms (eg, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, hexyl, octyl group, etc.), a haloalkyl group having 1 to 8 carbon atoms (eg, , Trifluoropropyl, chloropropyl groups, etc.)
8 cycloalkyl group (for example, cyclopentyl, cyclohexyl group, etc.), C2-C8 alkenyl group (for example, allyl, hexenyl group, etc.), C6-C14 aryl group (for example, phenyl, naphthyl group, etc.) An alkylaryl group having 7 to 17 carbon atoms (eg, toluyl, xylyl group, etc.), an aralkyl group having 7 to 17 carbon atoms (eg, benzyl, phenylethyl group, etc.), an acyl group having 1 to 12 carbon atoms (eg, Saturated or unsaturated aliphatic acyl groups such as formyl, acetyl, propionyl, butyryl, acryloyl and methacryloyl groups; aromatic acyl groups such as benzoyl group) are preferred. In particular, the number of carbon atoms is 1
An alkyl group of 8 is preferable, and a methyl group is most preferable.

The formula _{-C x H 2x O (C 2} H 4 O) y (C 3 H 6 O)
x in _z A represents an integer of 2 to 6, but 2 to
4 is preferable and 3 or 4 is particularly preferable. y is 3 to 10
Is shown, z shows the integer of 0-10. z is not equal _{0, (C 2 H 4 O} ) y (C 3 H 6 O) z are ethylene oxide and propylene oxide (in particular, 1,2-propylene oxide) represents a block or random copolymer chain with. y and z can be selected so that the sum of y and z is preferably 2 to 15, more preferably 4 to 12, and most preferably 6 to 12. A independently represents a hydrogen atom, a substituted or unsubstituted monovalent hydrocarbon group, or an acyl group. Examples of the substituted or unsubstituted monovalent hydrocarbon group and acyl group are R
And a preferable specific example is also the same as R, but in addition to them, a hydrogen atom and an acyl group having 1 to 12 carbon atoms (in particular, 1 to 6 carbon atoms) are also preferable.

As typical examples of the organic polysiloxane-polyoxyalkylene copolymer used in the present invention, the following formulas (1a), (1b), (1c), (1d), (1e),
Examples thereof include compounds represented by (1f), (1g) and (1h).

[Chemical 1]

The organic polysiloxane-polyoxyalkylene copolymer can be produced by a known method, but a commercially available product can also be used.

The cured product of the organic polysiloxane-polyoxyalkylene copolymer can be obtained by curing the organic polysiloxane-polyoxyalkylene copolymer with a curing agent. Examples of the curing agent include urea resin prepolymer, melamine resin prepolymer, polyamide resin prepolymer, polyimide resin prepolymer, polyester resin prepolymer, alkyd resin prepolymer, epoxy resin prepolymer, furan resin prepolymer, polyurethane prepolymer. , Isocyanate compounds, silicone resin prepolymers, phenol resin prepolymers, resorcinol resin prepolymers, and composite resins of these compounds with other polymers or low molecular weight compounds, but are not limited thereto. Among these, isocyanate compounds are particularly preferable.

The isocyanate compound may be a compound having an isocyanate group in the molecule, and examples thereof include tolylene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, xylylene diisocyanate, methylenebis (cyclohexyl isocyanate),
Bis (isocyanatomethyl) cyclohexane, 1,
Examples thereof include, but are not limited to, prepolymer-type modified products, nurate-type modified products, carboxylic acid diimide-type modified products, and other modified products of these isocyanates such as 6,11-undecanetriisocyanate.

Among the above isocyanate compounds,
A nurate-type modified product represented by the following formula (2) is preferable.

[Chemical 2] (In the formula, R'represents a divalent hydrocarbon group)

The divalent hydrocarbon group for R'is as follows:
For example, divalent aliphatic hydrocarbon group such as alkylene group such as methylene, ethylene, propylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, octamethylene, decamethylene, dodecamethylene group; divalent aromatic such as phenylene group Group hydrocarbon group; divalent alicyclic hydrocarbon group such as cyclohexylidene, 1,2-cyclohexylene, 1,3-cyclohexylene, and 1,4-cyclohexylene group; And a divalent hydrocarbon group. Among these, carbon number 2 to 2
A divalent hydrocarbon group of 0 is preferable, and particularly has 2 to 12 carbon atoms.
Is preferred.

The mixing ratio of the organic polysiloxane-polyoxyalkylene copolymer and the curing agent is not particularly limited, but the amount of the curing agent used is usually 100 parts by weight of the organic polysiloxane-polyoxyalkylene copolymer. 20-2
000 parts by weight, preferably 50 to 1500 parts by weight, and more preferably 100 to 1000 parts by weight. If the amount of the curing agent used is too small, the physical properties such as strength and adhesiveness after curing tend to deteriorate, and if it is too large, the viscosity increases and the handleability tends to deteriorate.

When the organic polysiloxane-polyoxyalkylene copolymer is cured, a crosslinking agent can be used. Examples of the cross-linking agent include reactive silicones such as alkoxysilanes, epoxy-modified silicone, amino-modified silicone, and carbinol-modified silicone, amino compounds (polyamines, etc.), amide compounds, urethane compounds, polyols (eg, ethylene. Alkylene glycol such as glycol and propylene glycol;
Polyalkylene glycols such as polyethylene glycol and polypropylene glycol; polyether polyols; polyester polyols; polycarbonate polyols) and other hydroxyl group-containing compounds. Among these, polyols are particularly preferable.

The amount of the cross-linking agent used is an organic polysiloxane-
It can be appropriately set depending on the kind of the polyoxyalkylene copolymer and the kind of the cross-linking agent used, etc., but generally 0 to 2000 parts by weight, preferably 100 parts by weight of the organic polysiloxane-polyoxyalkylene copolymer, Is 0-10
The amount is 00 parts by weight, more preferably about 50 to 500 parts by weight.

When the organic polysiloxane-polyoxyalkylene copolymer is cured, a curing accelerating catalyst can also be used if necessary. Examples of the curing accelerating catalyst include tin octylate, dibutyltin diacetate, dibutyltin dilaurate, dibutyltin mercaptide, dibutyltin thiocarboxylate, dibutyltin dimaleate, dibutyltin oxide, monobutyltin oxide, dioctyltin thiocarboxylate, dioctyltin mercaptide. Organotin compounds such as
Organic lead compounds such as lead octenoate; Organic mercury compounds such as phenylmercuric propionate; Organic antimony compounds; Potassium, sodium, calcium, iron, magnesium,
Examples thereof include carboxylates of metals such as tin, vanadium, and titanium; amine salts such as dibutyltinamine-2-ethylhexoate; amines; other acidic catalysts or basic catalysts. Among these, organotin compounds are particularly preferable.

The curing accelerating catalyst can be used in an amount of, for example, about 0.001 to 6% by weight based on the curing agent.

In the water-permeable structure of the present invention, the ratio of the pulverized waste material to the cured product of the organic polysiloxane-polyoxyalkylene copolymer can be appropriately selected within a range that does not impair mechanical strength or water permeability. Generally, the former / latter (weight ratio) = 70/30 to 98/2, preferably the former / latter (weight ratio) = 80/20 to 96/4, and more preferably about 85/15 to 95/5. .

The water-permeable structure of the present invention may contain an organic or inorganic additive and a resin other than a cured product of an organic polysiloxane-polyoxyalkylene copolymer, if necessary. Organic or inorganic additives include, for example:
Reinforcing agent, colorant (pigment, etc.), extender pigment, plasticizer, anti-sagging agent, ultraviolet absorber, light stabilizer, antioxidant, flame retardant,
Diluents, rust preventives, antibacterial agents, fungicides, algae preventatives and the like are included.

Examples of the reinforcing agent include carbon black, finely divided silica, carbon fiber, glass fiber, other fibers, non-woven fabric, calcium carbonate, talc, clay, bentonite, inorganic or organic filler such as silica, and the like. . Examples of the colorant include inorganic pigments such as iron oxide, chromium oxide, and titanium oxide; phthalocyanine blue,
Examples include organic pigments such as phthalocyanine green. Examples of the plasticizer include dioctyl phthalate,
Examples thereof include dibutyl phthalate, dioctyl adipate, chlorinated paraffin, petroleum plasticizers and the like. Examples of the anti-sagging agent include hydrogenated castor oil, aluminum stearate, calcium stearate, zinc stearate and the like.

In the water-permeable structure of the present invention, the pulverized waste materials are firmly adhered to each other via the thin film made of the cured product of the organic polysiloxane-polyoxyalkylene copolymer formed on the surface thereof. This water-permeable structure, compared to the case of using a binder of epoxy resin or urethane resin,
Since the thin film of the cured resin product can be thinned and the distance between the pulverized waste materials can be reduced, the mechanical strength such as bending strength and compression strength can be remarkably improved. Further, unlike the case of an epoxy resin or the like, since the volatile component does not remain after the resin is cured, after completion of the water-permeable structure, voids or cracks due to volatilization of the volatile component, peeling, etc. No trouble occurs. Further, in the case of an epoxy resin or the like, work is difficult because the pot life (adhesion retention time) is short, whereas in the present invention, the pot life is reasonably long (for example, about 0.5 to 1 hour). Therefore, it is possible to perform the repair work with a margin, and the workability and the operability are significantly improved because the work tools such as the trowel are not easily attached. Further, the curing speed of the resin is fast, and the resin is cured within a few hours at room temperature, so that the production efficiency (construction efficiency) is high.

Further, in the water-permeable structure of the present invention, since the cured product of the organic polysiloxane-polyoxyalkylene copolymer is stronger against ultraviolet rays and is excellent in weather resistance as compared with the cured product such as epoxy resin, chipping or warpage is caused. Is less likely to occur, and it does not shrink in the winter to create a gap, and it can be used for a long time. Further, since a cured product of an organic polysiloxane-polyoxyalkylene copolymer is used, when the water-permeable structure of the present invention is laid on a roadbed, weeds can be suppressed from growing and an epoxy resin or the like is used. The peeling phenomenon caused by metal ions contained in the groundwater that occurs in some cases is unlikely to occur.
In addition, since waste plastics or waste rubber pulverized products are used, it is possible to reduce the weight and develop appropriate elasticity. Furthermore, since the porosity is large, the sound deadening effect and the heat retaining effect are exhibited, and the breathability is also excellent. In addition, especially when using a waste rubber chip, safety (difficult to slip and injured when falling), comfort (a moderate elasticity gives a light walking feeling), noise reduction (noise prevention), Particularly excellent in heat retention and versatility (whether it is indoors or outdoors).

As an example of a preferred embodiment of the water-permeable structure of the present invention, there is a pavement obtained by curing a pavement material containing (i) a ground waste material and an organic polysiloxane-polyoxyalkylene copolymer on a base. Can be mentioned. This pavement is, for example, a binder composition comprising a crushed material of a predetermined amount, an organic polysiloxane-polyoxyalkylene copolymer, a curing agent, and if necessary, a curing accelerating catalyst, a crosslinking agent, an additive, and a solvent. Thing (hereinafter sometimes simply referred to as "binder") is added and mixed using a mixing means such as a mixer, and the resulting mixture (paving material) is sprinkled on a base to form a trowel or an electric trowel. It can be obtained by laying and leveling it and then rolling it with a roller or the like to cure and cure the resin.

As the solvent, organic polysiloxane
There is no particular limitation as long as it does not impair the curing of the polyoxyalkylene copolymer, and for example, esters such as ethyl acetate can be preferably used. The amount of the solvent to be used can be appropriately selected in consideration of workability, handleability and the like, but is generally about 5 to 60% by weight of the whole binder, preferably about 15 to 45% by weight of the whole binder.

The mixing time of the pulverized waste material and the binder is, for example, 5 to 60 minutes, preferably 15 to 40 minutes. When the waste material pulverized product and the binder are mixed, the viscosity is extremely low at first, but thereafter the viscosity gradually increases and the tackiness is developed. Since the viscosity of the binder is low at the beginning of mixing, the binder can be uniformly attached to the surface of the waste material pulverized even if the size thereof is different. When a certain amount of viscosity is developed, the mixture of pulverized waste material and binder is sprinkled on the substrate, but since the stickiness retention time is longer than with epoxy adhesives, etc., the surface is smoothed even after sprinkling. It is possible to easily perform work such as reworking.

The pavement can also be obtained by first sprinkling the crushed waste material on the base, spraying the binder thereon, and curing the resin without premixing the crushed waste material and the binder. You can

As the base, for example, sidewalks (promenades, general sidewalks, etc.), roadways, roadbeds such as park roads, parking lots, stairs,
Examples include landings, rooftops of buildings, pedestrian bridges, and platforms. The surface of the base is, for example, soil, ballast, crushed stone, mortar, asphalt, concrete,
It may be made of any resin or the like. Therefore, the pavement body may be formed after the roadbed is subjected to mortar construction or crushed stone construction. It is also possible to subject the surface of the substrate to a primer treatment and then apply the waste material pulverized product and the binder thereon. The primer is not particularly limited as long as it can improve the adhesiveness between the base and the water-permeable structure to be formed, and any primer generally used when manufacturing a pavement (for example, a urethane-based primer) Etc.) can be used, but the above binders can be preferably used. Further, the mixture of the pulverized waste material and the binder may be sprinkled on the substrate, and then the above binder may be further applied or sprinkled. By doing so, it is possible to more reliably bond the waste pulverized products to each other.

The pavement of (i) above is, for example, a permeable pavement, a park pavement, a pavement for parking lots, a pavement for stairs / landings, a pavement for protecting a roof waterproof layer, a pavement for a rooftop greening system, and a pedestrian bridge. It can be used as a pavement (replacement of concrete pavement, etc.), platform pavement (replacement of concrete pavement, etc.), road shoulder / planting pavement, planting gravel, etc. The rooftop waterproof layer is usually
It is made of urethane resin, epoxy resin, mortar, etc.

The permeable pavement according to the present invention has a water permeability of about 2 to 3 times and a durability of more than 2 times that of the conventional permeable pavement.
It is useful for controlling the temperature rise phenomenon, rainwater countermeasures, and ground subsidence countermeasures due to groundwater reduction. It also has the great advantage that it does not freeze and thaw and does not require a drain. When used as a pavement for a park pavement or a parking lot, it is not necessary to lay a U-shaped groove, etc., and clogging is less likely to occur, and a puddle cannot be formed. Also, weeds are difficult to grow. When used as a pavement for stairs and landings, noise can be prevented. When it is used as a pavement for protecting a roof waterproof layer, the weight of the building can be reduced, and the functions of suppressing growth of weeds, suppressing an increase in temperature, and shading are exhibited. Further, according to the pavement for a rooftop greening system based on the present invention, it is possible to reduce the weight, improve the water permeability, and alleviate the heat island phenomenon due to the greening of the rooftop of the city. When used as a pavement for a pedestrian bridge or a pavement for a platform, it is difficult to form a puddle, the weight of the pedestrian bridge and the platform can be reduced, and the life of these structures can be extended. Further, when it is used as a road shoulder / pavement for planting, weed growth can be suppressed. Further, when it is used as a tree planting tree, it is possible not only to give more water to the roots of trees to assist the growth of plants, but also to prevent the roots from being lifted.

As the construction method of the above-mentioned water-permeable pavement, for example, (a) roadbed leveling work-roadbed ground stone laying work-roadbed binder spraying work-pavement material application work (laying by spreading a mixture of waste ground material and binder) Leveling process), (b) Roadbed grading work-Roadwork ground stone laying work-Waste material crushed material laying work (Process of laying waste material crushed material on the construction surface) -Binder application process (process of spreading binder to waste material crushed material) , (C) Roadbed grading work-Roadbed ground stone laying work-Pavement material coating work-Binder coating work. Park pavement, pavement for parking lot,
Construction of stairs and landing pavements can also be performed according to these methods.

As the construction method of the above-mentioned pavement for protecting the roof waterproof layer, for example, (d) base treatment (washing etc.)-Primer coating-paving material coating (e) ground treatment (washing etc.)- Examples of the method include laying pulverized waste material-binder coating, (f) ground treatment (washing, etc.)-Paving material coating-binder coating. Pavement for rooftop greening system,
Pavements for pedestrian bridges, pavements for platforms, etc. can also be constructed according to these methods.

Examples of the construction method of the pavement for road shoulder / planting and tree grouting are: (g) road grading-paving material application, (h) road grading-waste material crushed material laying-binder application Etc. are exemplified.

As another example of a preferred embodiment of the water-permeable structure of the present invention, (ii) a cast cured pavement material containing a ground waste material and an organic polysiloxane-polyoxyalkylene copolymer is used as a base. The pavement adhered to the.
Whereas the (i) pavement is a pavement that is constructed on-site, the (ii) pavement is commercialized as a block for pavement (cast cured product) in factories, etc. It is a pavement that is manufactured by loading in, laying it out on a base, and adhering it.

The cast cured product is a palletized material containing a pulverized waste material, an organic polysiloxane-polyoxyalkylene copolymer, and, if necessary, the above-mentioned curing agent, crosslinking agent, additive, solvent and the like. It can be obtained by filling and curing. The conditions for preparing and curing the pavement material are the same as above. The size of the cast cured product can be appropriately set in consideration of handleability, etc., but generally it is 10 to 100 cm square and the thickness is 5 to 5.
The size is about 200 mm. The cast cured product may be accompanied by a substrate such as a concrete flat plate. When the cast cured product is adhered to the substrate, a known or commonly used adhesive or primer can be used, but the binder in the present invention can also be used.

Still another example of the preferred embodiment of the water-permeable structure of the present invention is (iii) a cast cured product of a mixture of a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer. The cast cured product (iii) is, for example, a pulverized waste material, an organic polysiloxane-polyoxyalkylene copolymer, and, if necessary, a binder containing the curing agent, the crosslinking agent, the additive, the solvent, or the like. Mix
It can be obtained by a method of filling this mixture in a mold and curing / molding it, or a method of filling the mold with a waste material crushed product and then pouring the binder into it to cure / mold it. The conditions for preparing and curing the pavement material are the same as above. The size and shape of the cast cured product are not particularly limited, and can be set to a desired shape and size according to the application.

The above-mentioned cast cured product (iii) can be used, for example, as a horticultural permeable pot (plant pot), rainwater permeable mass, permeable grating, permeable flat plate block or interlocking, green form (green box), etc. . According to the above-mentioned horticultural aerial bowl, excellent water permeability and good drainage prevent root rot from occurring, and since the porosity is high and the air permeability is good, the roots of the plant are activated and the growth of the plant is promoted. To be done. Also, since it is water permeable, it is not necessary to make a hole in the bottom. Furthermore, it is lightweight, hard to break, and has excellent durability. In the above-mentioned rainwater permeable mass, rainwater does not collect because the whole is permeable. In the above water-permeable grating, the lid can be made entirely water-permeable with no groove, so that the weight can be reduced. According to the water-permeable flat plate block or interlocking, work efficiency can be improved by weight reduction, water accumulation can be prevented, and added value can be added by coloring. In the above greening form, water permeability and air permeability can be remarkably improved by adding synthetic resin fibers as a reinforcing agent to increase communicating voids.

In addition to the above, the water-permeable structure of the present invention can also be used as a basic material of a structure, an aggregate such as a lower layer roadbed material and the like.

[0053]

The water-permeable structure of the present invention has high water permeability and mechanical strength, as well as excellent weather resistance and ultraviolet resistance, and has a long-term chipping, warping, cracking and peeling.
It is difficult to create gaps. Further, it can be easily manufactured with good workability and can be easily reworked. Moreover, the growth of weeds can be suppressed. According to the manufacturing method of the present invention, it is possible to easily manufacture the water-permeable structure having the above-described excellent properties. The pavement material of the present invention and the cast-cured product of the pavement material are useful for obtaining a water-permeable structure having the above properties.

[0054]

The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited by these examples.

Production Example 1 (Preparation of Binder for Waste Material) 30 parts by weight of isocyanate compound (compound represented by the above formula (2)), 10 parts by weight of polypropylene glycol (molecular weight about 700), polysiloxane-polyoxyalkylene copolymer A binder 1 for waste material is prepared by mixing 10 parts by weight of a combination (a molecular weight of about 700; a compound represented by the formula (1e)), 1 part by weight of tin octylate, 20 parts by weight of bentonite, and 29 parts by weight of ethyl acetate. did.

Production Example 2 (Preparation of Binder for Waste Material) 35 parts by weight of isocyanate compound (compound represented by the above formula (2)), 10 parts by weight of polypropylene glycol (molecular weight about 700), polysiloxane-polyoxyalkylene copolymer A binder 2 for waste material is prepared by mixing 5 parts by weight of a combination (a molecular weight of about 700; a compound represented by the formula (1e)), 1 part by weight of tin octylate, 20 parts by weight of bentonite, and 29 parts by weight of ethyl acetate. did.

Production Example 3 (Preparation of Binder for Waste Material) 40 parts by weight of isocyanate compound (compound represented by the above formula (2)), 10 parts by weight of polypropylene glycol (molecular weight about 700), 1.5 parts by weight of tin octylate. , Bentonite 20 parts by weight, and ethyl acetate 28.5 parts by weight were mixed to prepare a binder 3 for waste material.

Production Example 4 (Preparation of pulverized waste material) Polyethylene terephthalate bottle (PET bottle)
85 parts by weight, 10 parts by weight of polyethylene bag, and 5 parts by weight of extender pigment were mixed, melted by heat, cooled, and then pulverized by a pulverizer to obtain a pulverized waste material having a particle diameter of 5 mm or less.

Example 1 300 g of the pulverized waste material obtained in Production Example 4 and 60 g of the binder 1 for waste material obtained in Production Example 1 were placed in a beaker made of polyethylene having a volume of 1 L and stirred with a glass rod for 30 minutes. When the development of tackiness was observed, the preparation was completed, and a crushed waste material-containing adhesive (paving material) 1 was obtained.

Example 2 The same operation as in Example 1 was carried out except that 60 g of the binder 2 for waste material obtained in Production Example 2 was used in place of the binder 1 for waste material, and an adhesive (pavement material) containing pulverized waste material. Got 2.

Comparative Example 1 The same operation as in Example 1 was carried out except that 60 g of the binder 3 for waste material obtained in Production Example 3 was used in place of the binder 1 for waste material, and an adhesive (pavement material) containing pulverized waste material. Got 3.

Comparative Example 2 Commercially available epoxy adhesive (trade name "Konishi Bond # 20")
6 ”, manufactured by Konishi Co., Ltd., was used as the adhesive 4.

Evaluation test (preparation of test specimen) Specimen 1 Two JIS standard K5410 mortar plates 10 mm x 70 mm x 70 mm (formerly Test Panel Industry Co., Ltd.) left for 6 months or longer were prepared, and these mortar plates were prepared. Between the maximum surfaces of the adhesive layers, using the waste material pulverized material-containing adhesive (pavement material) of Example 1, Example 2, and Comparative Example 1 or the adhesive of Comparative Example 2 as shown in FIG. Was adhered so as to be 10 mm, and left for a normal state for 72 hours to obtain a sample 1.

Specimen 2 JIS standard K5410 mortar board 10 mm × 70 mm ×
Prepare 70 mm (formerly Test Panel Industry Co., Ltd.) 2 sheets and
Immerse one mortar board in normal temperature water for 45 hours to make it hydrated (water content average 17%), and leave the other mortar boards in the normal state,
The maximum surfaces of these two mortar plates were bonded to each other by using the waste material pulverized material-containing adhesive (pavement material) of Examples 1 and 2 and Comparative Example 1 or the adhesive of Comparative Example 2 as shown in FIG. Sample 2 was prepared by adhering the adhesive layer so that the thickness of the adhesive layer was 10 mm and left it in the normal state for 72 hours.

Specimen 3 JIS standard K5410 mortar board 10 mm × 70 mm ×
Prepare 70 mm (formerly Test Panel Industry Co., Ltd.) 2 sheets and
Applying 2 cc of hydrochloric acid concentration solution with 2 cc each time on one surface (adhesive surface) of one mortar plate by brush for 25 times to forcibly deteriorate it, and leave the other mortar plate under normal conditions.
The maximum surfaces of the mortar plates are bonded together as shown in FIG. 1 by using the waste material pulverized material-containing adhesive (pavement material) of Example 1, Example 2, and Comparative Example 1 or the adhesive of Comparative Example 2 described above. Sample 3 was adhered so that the agent layer had a thickness of 10 mm and left standing for 72 hours under normal conditions.

(Adhesion test) Adhesive effect of the adhesive (pavement material) containing pulverized waste material obtained in the examples (adhesion between pulverized waste material and adhesive strength between mortar and pulverized waste material) ), The following adhesive strength test was performed. As shown in FIG. 2, after attaching a metal attachment to each of the above specimens with an epoxy adhesive, curing for 24 hours,
Simple tensile tester (R-10000; maximum load 100
A tensile test was performed using 0 kg, manufactured by Sanko Techno. Table 1 shows the test results (tensile strength (N / mm ² ), breaking position). In addition, in the sample 3 using the adhesive of Comparative Example 2, it was impossible to measure the adhesive force because the deteriorated mortar surface was peeled off when the attachment was attached.

[0067]

[Table 1]

As shown in Table 1, when the waste material pulverized material-containing adhesive (pavement material) of Examples 1 and 2 corresponding to the present invention was used, the adherend was either in a dry state or in a water-containing state. Also showed extremely high adhesiveness, and the breaking position was inside the adhesive in all cases. In particular, the waste material pulverized material-containing adhesive of Example 1 exhibited a very high adhesive force even with respect to the adherend in a deteriorated state. On the other hand, the waste material pulverized material-containing adhesive (urethane type) of Comparative Example 1 and the adhesive (Epoxy type) of Comparative Example 2 do not provide a very high adhesive force to the adherend in a dry state, Practical use is largely limited. Further, it has a very low adhesive strength to an adherend in a water-containing state or a deteriorated state and cannot be used. These results are
A binder for pulverized waste materials is required to have a wetting effect on the waste materials and an effect of permeating the object to be adhered, showing that the use of an organic polysiloxane-polyoxyalkylene copolymer as the binder is an effective means. There is.

(Mechanical Strength Test) Bending strength (JIS K) of the specimen 1 using the waste material pulverized material-containing adhesive (paving material) of Examples 1 and 2 and the adhesive of Comparative Example 2 respectively
According to 7203, load speed 10 mm / min, distance between fulcrums 200 mm) and compressive strength (JIS K 7208; load speed 15 mm / min) were measured. The results are shown in Table 2.

[0070]

[Table 2]

As shown in Table 2, when the waste material pulverized material-containing adhesive (paving material) of Examples 1 and 2 corresponding to the present invention was used, the adhesive of Comparative Example 2 was used. In comparison, extremely high mechanical strength was obtained.

(Weather Resistance Test) JIS A 1415 (polymer-based building material) was used for Specimen 1 using the waste material pulverized material-containing adhesive (paving material) of Examples 1 and 2 and the adhesive of Comparative Example 2 respectively. According to the laboratory light source exposure test method), a weather resistance test was performed under the following conditions. The results are shown in Table 3. Test equipment: Suga Test Instruments Co., Ltd., xenon long life weather meter WEL-75XS-HC.B.Ec (water-cooled 7.5kW xenon arc lamp type weather resistance tester) Temperature inside tester: 63 ± 3 ° C (black panel) Thermometer reading) Humidity inside the tester: 50 ± 5% RH Radiation exposure on one side of test piece: 390 W / m ² Cumulative radiant exposure on one side of test piece: 1400 kJ / m ² / hr Water spray cycle on the test piece side: 51 minutes irradiation After that, 9 minutes irradiation and water spray test time: 100 hours, 200 hours, 300 hours

[0073]

[Table 3]

As shown in Table 3, when the waste material pulverized material-containing adhesive (pavement material) of Examples 1 and 2 corresponding to the present invention was used, the adhesive of Comparative Example 2 was used. In comparison, the weather resistance was remarkably excellent.

Example 3 The pulverized waste material (300 parts by weight) obtained in Production Example 4 and the binder 1 for waste material (60 parts by weight) obtained in Production Example 1 were mixed with a mixer for 30 minutes. The obtained mixture (paving material) is sprinkled on the roadbed of the platform of the station in a thickness of 15 to 20 mm, spread and leveled, and then compacted for 240 minutes to cure the organopolysiloxane-polyoxyalkylene copolymer. To form a water-permeable pavement. When water was sprinkled from the top of this water-permeable pavement, it was found that it showed excellent water permeability.

Example 4 The waste material binder 1 obtained in Production Example 1 was sprayed as a primer on the roadbed of the platform of the station, and then the waste material pulverized product (300 parts by weight) obtained in Production Example 4 and Production Example 1 were used.
A water-permeable pavement was formed by performing the same operation as in Example 3 except that the mixture (pavement material) with the binder 1 for waste material (60 parts by weight) obtained in 1. was sprinkled out. When water was sprinkled on the water-permeable pavement, it showed excellent water permeability.

Example 5 A mixture (paving material) of the pulverized waste material (300 parts by weight) obtained in Production Example 4 and the binder 1 for waste material (60 parts by weight) obtained in Production Example 1 was sprinkled and spread. After leveling, the binder 1 for waste material obtained in Production Example 1 was sprayed, and then the same operations as in Example 3 were performed except that the compaction and curing were performed, to form a water-permeable pavement. When water was sprinkled on the water-permeable pavement, it showed excellent water permeability.

Example 6 The pulverized waste material (300 parts by weight) obtained in Production Example 4 and the binder 1 for waste material (60 parts by weight) obtained in Production Example 1 were mixed in a container for 30 minutes. The obtained mixture was poured into a mold and left for 240 minutes to cure the organopolysiloxane-polyoxyalkylene copolymer, and the diameter was about 200 m.
A pot-shaped water permeable pot for gardening having a height of about 250 mm was prepared. When soil was put in this water permeable bowl and water was sprinkled from above, excellent water permeability was exhibited.

[Brief description of drawings]

FIG. 1 is a perspective view showing a sample used for an adhesive strength test.

FIG. 2 is a perspective view showing a state in which a sample is attached to an attachment in an adhesive strength test.

[Explanation of symbols]

1 mortar board 2 Test adhesives (adhesives containing crushed waste materials or adhesives) 3 attachments 4 Attachment mounting adhesive

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshikazu Yugaki             2-16-7 Yutenji, Meguro-ku, Tokyo (72) Inventor Hozumi Okunishi             15 at 8 Yawata Gomasho, Yawata City, Kyoto Prefecture (72) Inventor Shinshin Hidenobu             3-11-20 Okubochu, Kumatori-cho, Sennan-gun, Osaka Prefecture             issue F term (reference) 2D051 AA02 AB03 AD01 AD07 AD08                       AE04 AE05 AE06 AF06 AF07                       AG03 AG05 AG13 AG15 AG16                       AG17 AG18 AH01 EA01 EA06                 4J002 AA012 AA022 CP181 DA036                       DJ006 DJ016 DJ036 DJ046                       FD016 GL00

Claims (14)

[Claims] 1. A water-permeable structure comprising a pulverized waste material and a cured product of an organic polysiloxane-polyoxyalkylene copolymer. 2. The water-permeable structure according to claim 1, which is a pavement obtained by curing a pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer on a base. 3. The water-permeable structure according to claim 1, which is a pavement in which a cast cured product of a pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer is adhered to a substrate. . 4. The water permeable structure according to claim 2, wherein the surface of the base is made of soil, gravel, crushed stone, mortar, asphalt, concrete or resin. 5. The water-permeable structure according to claim 1, which is a cast cured product of a mixture of a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer. 6. The water permeable structure according to claim 1, wherein the pulverized waste material contains at least a pulverized waste plastic. 7. The organic polysiloxane-polyoxyalkylene copolymer has the following formula (1) R ₃ SiO (R ₂ SiO) _n SiR ₃ (1) [wherein, R is independently a hydrogen atom, A substituted or unsubstituted monovalent hydrocarbon group or an acyl group is shown, and n is 1 to 1.
Indicates an integer of 0. However, 1 to 1 out of all existing R
5, the formula _{-C x H 2x O (C 2} H 4 O) y (C 3 H 6 O) z A
(In the formula, x independently represents an integer of 2 to 6, y independently represents an integer of 3 to 10, z independently represents an integer of 0 to 10, and A independently represents a hydrogen atom. A substituted or unsubstituted monovalent hydrocarbon group, or a group represented by an acyl group)].
Or the water permeable structure as described in 5 above. 8. A paving material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer. 9. A cast cured pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer. 10. A method for producing a water-permeable structure, which comprises casting and curing a mixture of a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer. 11. A method for producing a water-permeable structure, which comprises forming a pavement by curing a pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer on a base. 12. The method for producing a water permeable structure according to claim 10, wherein an isocyanate compound is used as a curing agent. 13. A step of treating a surface of a substrate with a primer comprising an organic polysiloxane-polyoxyalkylene copolymer, and a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer on the primer-treated substrate. 12. The method for producing a water permeable structure according to claim 11, further comprising the step of laying a pavement material to be applied and curing the paving material. 14. A water-permeable structure characterized by forming a pavement by adhering a cast cured product of a pavement material containing a pulverized waste material and an organic polysiloxane-polyoxyalkylene copolymer onto a substrate. Body manufacturing method.