JPH10219118A - Dissolution treatment liquid for asphalt and method for using dissolution treatment liquid for polystyrene and asphalt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dissolution treatment liq. for polystyrene and asphalt which enables a hot-asphalt waterproofing to be repaired safely without needing skill and without causing an odor problem and which enables the effective utilization of pavement asphalt formerly disposed of and to provide a method for using the same. SOLUTION: This dissolution treatment liq. for polystyrene and asphalt comprises a sesquiterpene, a diterpene, a triterpene, or a mixture of at least two of these substances. The liq. is supplied to a water-leak spot 6 including a heat-insulating polystyrene material 4 and/or an waterproof asphalt layer 3 to dissolve the heat-insulating material 4 and/or the waterproof layer 3, and the resultant soln. fills the water leak spot to restore the waterproofness. A soln. obtd. by bringing the liq. into contact with polystyrene products or waste asphalt is supplied to a water leak spot to restore the waterproofness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of using a solution for dissolving asphalt and a solution for dissolving polystyrene and asphalt, and more particularly, to cracking a waterproof layer of asphalt on a rooftop, a tunnel or an elevated road made of concrete. The present invention relates to a method for using an asphalt dissolving solution and a polystyrene or asphalt dissolving solution used in waterproofing repair or the like performed when water leakage occurs due to occurrence of water leakage.

[0002]

2. Description of the Related Art Asphalt waterproofing methods include a hot method and a normal temperature method (cooling method). In many cases, a hot method is used. Asphalt waterproofing method is about 6 of all waterproofing methods
Because it accounts for 0% or more, the roof waterproofing method for buildings and the like often refers to the hot asphalt waterproofing method.
The asphalt waterproofing method has a long history of about 80 years, and has received overestimation. In the asphalt waterproofing method, durability is a problem because the waterproofing material is mainly used for a portion exposed to the outside air.

The aging phenomenon of asphalt is caused by ultraviolet rays, heat,
It progresses under the action of oxygen, and volatile oil is gradually lost from the surface and hardly deteriorates. When oxidation proceeds under the influence of oxygen, carbides are formed on the surface, cracks such as fine wrinkles are formed, and the surroundings rise due to the action of cohesion. Due to such properties, asphalt has a short life when exposed to the outside air, so that it cannot be considered as a waterproof material used outside.

[0004] Asphalt includes natural asphalt and petroleum asphalt, and petroleum asphalt is used for waterproofing work. Petroleum asphalt is divided into straight asphalt and blown asphalt due to the difference in the production method, but straight asphalt is unsuitable for waterproofing because its physical properties change sensitively with temperature changes.

[0005] Asphalt concrete and asphalt felt for road pavement, and blown asphalt used for impregnating roofing into base paper are used for coating asphaltolfing. As the asphalt for waterproofing, there are used those obtained by adding elasticity to blown asphalt to prevent elasticity at low temperatures and hardening at high temperatures, and asphalt compounds having improved properties such as weather resistance. Asphalt used for asphalt waterproofing is the one specified in JIS K2207-1980.
There are 4 species, of which 3 are used for architectural purposes.
Species to four, four of which are for use in cold regions, and the other three are used in regions other than cold regions.

Asphalt has been used for more than 80 years in the construction-related, especially in the roof waterproofing of concrete buildings. When performing asphalt method on a general flat roof, first put the solid asphalt in a bag on the rooftop into a kettle, heat it with a gas burner to dissolve the asphalt, apply it to the flat roof, and apply roofing 2 to 3
Laminate and paste. In the case of this asphalt thermal waterproofing method,
The odor when asphalt is melted by heat is a problem in the neighborhood, and it is easy to ignite because the asphalt is boiled in a kettle, and the construction site has to submit a work permit to the fire department. There is a problem that work conditions are poor due to work, and that skilled workers are not raised.

[0007] As a roof waterproofing method for a concrete building, there is an external insulation asphalt waterproofing method. In this method, a foamed polystyrene foam is attached as a heat insulating material on the concrete, and a waterproof asphalt is placed on the foam.
This is an external heat insulation method in which three additional sheets are attached.
The waterproof layer on the surface of the fins is susceptible to thermal degradation and weathering, wrinkles are likely to be formed at the joints of the heat insulating material, the grade of the waterproof layer needs to be improved, and the heat insulating material has a surface treatment that can respond to asphalt heat. It is necessary to remove all parts, if the insulation material undergoes moisture absorption and thermal deformation and the insulation function deteriorates, if the asphalt cracks or repairs and repairs, all must be removed, even if it is partially repaired There is a problem that the cost increases.

On the other hand, civil engineering, general roads, highways, bridges,
General name petroleum-based coater used on factory premises, etc.
Asphalt for paving uses a mixture of coal tar and aggregate, but this asphalt is replaced once every several years, and is also used for pipe work buried in roads. Each time the road is excavated, the road is replaced, and the excavated asphalt is discarded without any use.

[0009]

As described above, since the conventional hot asphalt waterproofing method has many problems, the present invention does not have such problems, that is, it requires no skill and can be safely operated. It is possible to perform hot asphalt waterproofing repair that can work and does not cause odor problems,
It is an object of the present invention to provide polystyrene and asphalt dissolving solution capable of effectively utilizing asphalt for paving, which has been conventionally disposed of, and a method of using the same.

[0010]

According to the present invention, there is provided a polystyrene comprising one of sesquiterpenes, diterpenes, and triterpenes, or a mixture of two or more of these.
The above problem was solved by utilizing the asphalt dissolving solution. The treatment liquid is d-limonene, isoamyl acetate, benzyl propionate, any one of ethyl butyrate, or a monobasic acid ester composed of a combination thereof, or dimethyl gluconate, dimethyl adipate, dimethyl succinate It contains at least one dibasic acid ester composed of any one or a combination thereof.

[0011] The treatment liquid is supplied to a water leaking portion of a portion including a polystyrene heat insulating material and / or an asphalt waterproof layer, thereby dissolving the heat insulating material and / or the waterproof layer, and filling the water leaking portion with the solution. Repairing waterproof,
A solution obtained by contacting a polystyrene product or waste asphalt is supplied to a leak location and used for waterproof repair.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The solution for dissolution according to the present invention (hereinafter simply referred to as “the treatment solution”) comprises any one of sesquiterpene, diterpene and triterpene, or a mixture of two or more of these. Usually, d-limonene, isoamyl acetate, benzyl propionate, any one of ethyl butyrate, or a monobasic acid ester composed of a combination thereof, or dimethyl gluconate, dimethyl adipate, any of dimethyl succinate, or And at least one dibasic acid ester composed of a combination thereof. The main active ingredient of this treatment liquid is selected from the group consisting of p-menthanedienes or pinene compounds.

The method of using the processing solution will be described in detail with reference to the drawings. FIG. 1 shows an example of a rooftop exterior insulation and waterproofing repair work made of concrete.
G), 2 is Cinder (asphalt insulation waterproof presser), 3
Denotes an asphalt waterproof layer, 4 denotes a heat insulating material made of polystyrene foam, 5 denotes a contraction joint, 6 denotes a crack, 7 denotes an injection hole, and 8 denotes a crack in the waterproof layer.

In this rooftop waterproofing method, when a crack 8 is generated in the waterproof layer 3 and water leakage occurs, conventionally, Cinder-2
Was removed and the waterproof layer 3 was repaired, and then pressed again with concrete to stretch Cinder-2. However, in the present invention,
The contraction joint 5 is partially removed without removing the cylinder-2, or an injection hole 7 is appropriately formed in the cylinder-2, and the treatment liquid is injected into the cylinder 7 to dissolve the asphalt waterproof layer 3 and dissolve the same. Waterproofing is performed by naturally filling the cracks 8 with the liquid. At the same time, the heat insulating material 4 made of polystyrene foam is also dissolved, and a waterproof material mixed with the above solution is generated.

The treatment liquid injected from the shrink joint 5 removal section or the injection hole 7 passes through the rainwater path inside the Cinder-2, reaches the crack 6 while dissolving the waterproof layer 3 and the heat insulating material 4, and is generated. The crack hole is filled with a dissolving solution to form a waterproof protective layer. In addition, the polystyrene constituting the heat insulating material 4 was completely dissolved by a chemical reaction with the present treatment liquid, and even if rainwater entered the inside of Cinda-2 during construction, the polystyrene dissolved liquid was perfectly integrated to repel water. A waterproof layer is formed.

The treatment liquid is characterized in that it contains an ester, particularly an ester of a dibasic acid. These esters, in particular the aliphatic esters of dibasic acids, such as dimethyl gluconate, dimethyl adipate, and dimethyl succinate (CAS # 1119-40-1; 62-93-
0; 106 65-0) reacts rapidly with polystyrene, acting as a stress cracking agent, destroying the highly stressed reticulated cell walls and then remaining. Destroy the inter-bubble structure. Esters of these dibasic acids differ from the vapor process in which polystyrene products are acted upon by dissolving the polystyrene product in the vapor of a natural organic compound, such as has previously been used to reduce the volume of polystyrene products. .

The treatment liquid functions as a liquid. The dibasic acid ester has a boiling point of 196 to 255 ° C. and a vapor pressure of only 0.2 mmHg at 20 ° C. The evaporation rate of the dibasic acid ester is 1/10 that of the commonly mentioned butyl acetate. Specific gravity is slightly larger than water,
Separation from formulations such as water and ethylene glycol is easy because the compatibility is limited. Further, the ester of dibasic acid has low solubility in water and ethylene glycol, and has extremely high solubility in many alcohols. It can be easily carried out by using ethylene glycol or the like.

As described above, the shrinkable joint removing portion and the injection hole 7 are formed.
In addition to the method of directly injecting the treatment solution or the lysis solution generated by using the treatment solution, a fish box, tray,
After dissolving polystyrene industrial waste such as packing materials, toys, architectural frame materials, and heat insulating materials with this treatment liquid, separating with ethanol and removing this treatment liquid with ethylene glycol, etc. It is also conceivable to inject a lysate obtained by purification.
In this case, the solution is injected into the crack 6 or the crack 8 by a low-pressure injector or a manual pressure pump. In addition, polystyrene dissolved with d-limonene, terpene, dibasic acid ester, etc. is considered as having no polarity, and alcohol, etc. is considered as having polarity, by vapor separation using ethylene glycol or the like. , Each can be played.

In a condominium made of concrete, after newly built or moved, the expansion joint 10
Depending on the thermal expansion and road conditions, the building may move due to the vibration of the car and rub against the polystyrene foam 11 used also as a formwork to generate noise (FIG. 2). The residents of the room facing the wall will suffer from the noise. To solve this problem, polystyrene foam
The first step is to remove the fuel system, but at present it must be removed manually or using dangerous chemicals such as methyl chloride (dichloromethane), toluene, gasoline, and kerosene. It had to be dangerous work.

However, if the styrofoam and styrene foam at the expansion joint for buildings and civil engineering are dissolved and removed using the treatment liquid or the dissolution liquid, the above-mentioned noise problem caused by styrene foam can be solved. can do. Further, a polystyrene foam 14 at a notch 13 such as a pillar portion of a handrail 12 for civil engineering and construction, a decorative formwork, various cushioning materials, a driving formwork, a pit shaving place formwork,
The treatment solution or the dissolving solution can be used as an effective means for dissolving and removing the polystyrene portion existing under the road by the groove mold, each mold, and the freezing method. FIG.
In the case of the handrail 12 shown in (1), the treatment liquid is applied to the polystyrene foam 14 at the cut-off portion of the support portion to generate a solution, and the solution serves as a waterproof material.

The solution obtained by dissolving the above-mentioned polystyrene can be used for various uses as described below, in addition to the above-mentioned method of use. That is, the foundation of the receiving tank of buildings, condominiums, factories, etc. is currently made with an H-shaped steel frame and fixed with bolts, but after several years, water leaks from the receiving tank and the H-shaped steel frame is corroded by rust and the like. For this reason, it may be necessary to redo the painting or replace the steel frame, but the gel made from recycled industrial waste (polystyrene)
Manufactures polystyrene recycle molded products such as
If the steel frame is covered with this, the rust-preventing effect is increased.

Further, since the existing manhole cover is made of a heavy casting, the work efficiency is reduced due to considerable labor at the time of maintenance. However, polystyrene as industrial waste is dissolved and regenerated to recover other materials. By mixing with plastic waste (polyethylene terephthalate, polyvinyl chloride, polypropylene, etc.), a recycled manhole cover having the same strength as that of a casting can be manufactured.

Further, the existing steel stair tread is made of a secondary product made of concrete and an iron plate. However, the concrete product is subject to cracks and the like with the passage of time. However, recycled polystyrene has the advantage that it does not crack or corrode, has abrasion resistance and can be used for a long period of time, and can contribute to solving the current environmental problems of refuse. When the industrial waste (polystyrene or the like) is dissolved in the treatment liquid, another mixed substance (petrochemical product) is mixed therein. However, the mixed substance is mixed at the time of reusing polystyrene or the like to increase the strength.

[0024]

The present invention is as described above, and since the present treatment liquid can easily dissolve polystyrene and asphalt, it can be used for the treatment thereof.
In particular, it is suitable for waterproofing repair of a leaked portion generated in a portion including a polystyrene heat insulating material and / or an asphalt waterproofing layer, and the operation can be performed quickly and at low cost without skill. Further, since the used dissolving solution has a high boiling point and a high flash point, there is an effect that the work can be performed safely.

Further, as another aspect of the present invention, a waterproofing treatment can be performed using a solution obtained by dissolving and refining industrial waste such as polystyrene and asphalt as an injecting material. -There is an effect that can be used for manufacturing structures such as a lid of a stall, a tread of a stair, and the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a waterproof repair method using a treatment liquid according to the present invention.

FIG. 2 is a perspective view showing an example of using a processing solution or a solution according to the present invention.

FIG. 3 is a perspective view showing another example of using the processing liquid or the dissolving liquid according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Cinder 3 Waterproof layer 4 Insulation material made of polystyrene 5 Shrink joint 6 Crack 7 Injection hole 8 Crack of waterproof layer 10 Expansion joint part 11 Polystyrene foam 12 Handrail 13 Notch 14 Polystyrene foam

Claims (11)

[Claims] 1. An asphalt dissolution solution comprising any one of sesquiterpenes, diterpenes, and triterpenes, or a mixture of two or more of these. 2. The dissolution treatment solution is a monobasic acid ester composed of d-limonene, isoamyl acetate, benzyl propionate, ethyl butyrate, or a combination thereof, dimethyl gluconate, dimethyl adipate. 2. The asphalt dissolving solution according to claim 1, wherein the solution contains at least one dibasic acid ester composed of any one of dimethyl succinate and dimethyl succinate. 3. The main active ingredient of the solution for dissolution is p
The solution for dissolving asphalt according to claim 1 or 2, which is menthandiene. 4. The asphalt dissolution solution according to claim 1, wherein the main active ingredient of the dissolution solution is selected from the group consisting of pinene compounds. 5. A portion containing a polystyrene or asphalt dissolving solution composed of any one of sesquiterpene, diterpene, and triterpene, or a mixture of two or more thereof, including a polystyrene heat insulating material and / or an asphalt waterproofing layer. A method for dissolving polystyrene and asphalt, comprising: dissolving the heat insulating material and / or the waterproof layer by supplying the water to the water leaking point; 6. A solution obtained by contacting a polystyrene or asphalt dissolution liquid comprising any one of sesquiterpenes, diterpenes, and triterpenes, or a mixture of two or more thereof with a polystyrene product or waste asphalt. A method for using a solution for dissolving polystyrene and asphalt, characterized in that the solution is supplied to a leak location for waterproof repair. 7. A polystyrene or asphalt dissolving solution comprising any one of sesquiterpene, diterpene, and triterpene, or a mixture of two or more of these, is treated with a synder at a leak site on a concrete building.
Between the asphalt waterproof layer and / or a heat insulating material made of polystyrene supplied from an injection hole formed in the cinder or between the shrinkable joint between the waterproof layer and the waterproof layer.
Alternatively, a method for using a solution for dissolving polystyrene or asphalt, comprising dissolving a heat insulating material, filling a leak location with the solution and performing waterproof repair. 8. An expansion joint for a concrete apartment, office building, road, bridge, etc., a handrail anchor pad at the base of a handrail support for a building, various cushioning materials,
Makeup form, Driving formwork, Pit kamaba blanking formwork, Groove formwork,
Applying or injecting polystyrene or asphalt dissolving solution consisting of any one of sesquiterpene, diterpene, triterpene, or a mixture of two or more of these to polystyrene existing under a road in a molding method or a freezing method, or the like. Reducing the volume of polystyrene by, or dissolved and removed polystyrene,
How to use asphalt dissolution solution. 9. A monobasic acid ester composed of any of d-limonene, isoamyl acetate, benzyl propionate, ethyl butyrate, or a combination thereof, dimethyl gluconate, dimethyl adipate The solution for dissolving polystyrene and asphalt according to any one of claims 5 to 8, which comprises at least one of dibasic acid esters composed of any one of dimethyl succinate and a combination thereof. How to Use. 10. The main active ingredient of the solution for dissolution is p
-The method of using a solution for dissolving polystyrene or asphalt according to any one of claims 5 to 9, which is menthandiene. 11. The method according to claim 5, wherein a main active ingredient of the solution for dissolving is selected from the group consisting of a pinene compound.