KR101664272B1 - sealant mixi dissolution equipment - Google Patents

Abstract

The present invention relates to a sealant mixer dissolver, an expansion joint using the same, and a construction method for the expansion joint. The present invention provides the sealant mixer dissolver to improve durability and reduce construction costs by reducing personnel costs by improving workability. According to the present invention, the sealant mixer dissolver comprises: a first step of excavating an expansion joint unit of a concrete structure on an asphalt road or a bridge; a second step of drying moisture of an excavated part in an indirect drying method; a third step of installing a backup material in a space unit of the expansion joint unit; a fourth step of constructing a first impact absorbing sealant applied by lining on a coating layer of 3 mm using an impact absorbing sealant; a fifth step of installing a steel plate on the impact absorbing sealant; a sixth step of constructing a second impact absorbing sealant; a seventh step of applying an aggregate sealant onto a work part; and an eighth step of finishing the surface by placing a surface sealant which is strong to ultraviolet rays to be coated and wider than an excavated width, having a protective function and a waterproof function of the aggregate sealant.

Description

Sealant mixi dissolution equipment < RTI ID = 0.0 >

The present invention relates to a sealant mixer dissolver which improves the adhesion of a sealant so that the structure of the expansion joint is robust, and improves workability and labor costs, thereby lowering the cost of the construction and enhancing durability.

Generally, there is a possibility of cracks or breakage in bridges and structures due to expansion and contraction due to temperature changes, creep and shrinkage of concrete, floating settlement of the ground, earthquake, and stress.

Accordingly, in the case of a concrete structure of a bridge or an underground roadway, the upper plate is shrunk or expanded due to a temperature change, so that the upper plate is spaced apart from the adjacent upper plate in consideration of contraction and expansion of the upper plate.

In addition to connecting the roofs between the roofs of these bridges, it is also possible to flexibly cope with the contraction and expansion of the roof, to provide safe operation of the vehicle, and to provide a flexible joint to prevent foreign matter or rainwater from entering the space between the two structures do.

The expansion joints in the concrete structures of bridges and underground roadways compensate for the slip gap to secure the passage of the vehicle and also prevent the storm from entering into the lower structure. Therefore, the performance of the expansion joint, waterproofing and drainage layer is perfect Failure to do so will cause water to flow into the pier or structure and cause damage to the bridge or structure.

A conventional bridge and an expansion joint joint method will be described.

A first step;

First, cut the required area of the bridge and the asphalt road marked by the road cutter. At this time, by working with a wet cutter, the workability of the work site is deteriorated due to moisture.

A second step;

In the case of excavating with a hand braker or an air brake car, there is a problem that the working time is long and the labor cost is increased and the time limit of the traffic is lengthened.

A third step;

Collect and clean excavated wastes. At this time, it is necessary to completely dry the moisture for accurate sealant attachment, and there is a problem that it takes much time to dry the moisture.

Step 4;

Restart the play area. At this time, the backup material to be used is a normal backup material.

Step 5;

Install iron plate on backup material. At this time, by installing the backup material and installing the steel plate directly without shock absorption and waterproofing, when the upper waterproofing problem occurs over time, the rainwater penetrates directly into the backing material portion and the matrix concrete and the ascon, There is a problem that causes.

In addition, the bridge part damages the bridge matrix and the adhesion of the ascon, so that the bridge part is extinguished at both edges, and it is heated by the ultraviolet rays in the summer due to the frequent passage of the automobile, so that the ascon is exhaled by the load of the automobile. It is becoming a cause.

Step 6;

Firstly, sealant is applied.

Step 7;

The aggregate sealant heated by the direct fire is firstly installed. In this case, the sealant and the 25-mm aggregate are put into a mixing mixer, and the aggregate heated by the direct heating is placed on the working site, which causes a problem in the amount of the proper amount and the expansion and contraction in the process of manually mixing the sealant and the aggregate .

In addition, since the material is heated by direct heating, the physical properties of the sealant are impaired, and a change in the physical properties causes a problem of the elongation.

Step 8:

Install a second sealant. That is, conventionally, there is a problem that workability is deteriorated because it is divided into first order and second order.

Step 9;

Secondly, aggregate sealant heated by direct heating is installed.

Step 10;

Apply the finish sealant three times. At this time, since the heated finish sealant is hardened by the air, the sealant is horizontally closed after the sealant is inserted, so that the horizontal level can not be maintained.

As a problem of the conventional method, the aggregate and the sealant separated from the blender are injected and rotated, and the heat is heated by using the torch lamp. In this case, the sealant may burn, and there is a problem that the aggregate sealant may be used in a state where the accurate mixer is not confirmed due to the smoke.

In addition, there is a problem that separation of the new and old parts may occur due to wear of the finishing material, and settlement due to moisture penetration may occur.

On the other hand, there is a construction problem in which the content can not be adjusted by strapping with the balance, and there is a problem that the physical properties of the product may change due to the operation of directly heating the aggregate and the sealant by gas heating.

In particular, the existing construction method has a problem that the cost is increased due to a rise in labor costs due to a long processing time because of a lot of manual work, and there is a disadvantage in that the residual loss of the material after construction is large, and there is a problem that it is difficult to reuse and transport many materials.

As a general problem of the existing method, there is a problem in that the surface finishing material is worn out due to the frequent passage of the vehicle and cracks are generated due to the adhesion of the aggregate sealant at the existing asphalt cutting portion and the joint portion, After the passage of time. Particularly, change of physical properties by the sealant direct heating method has become a main cause of defects due to adhesiveness and durability.

Korean Patent Laid-Open Publication No. 10-1983-0003628, a stretch joint structure of a road. Korean Patent Registration No. 10-1036277, a waterproofing material for a stretch joint of a structure including roads and bridges, and a construction method for a new construction using the same.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art described above, and it is an object of the present invention to improve the adhesion of the sealant so that the structure of the expansion joint is robust, And a sealant mixer for dissolving the sealant.

According to an aspect of the present invention, there is provided an expansion joint construction method for expanding and contracting two concrete structures spaced apart from each other and forming a space portion therebetween, the method comprising: A first step of cutting along a first cutting line and a second cutting line, and also excavating between a first cutting line and a second cutting line; In the first stage of the excavation work, a mobile ultraviolet dryer capable of heating at an instantaneous temperature of 150 to 700 ° C is used to perform maintenance work on cracked or cracked sites, A second step of drying; A third step of installing a backup material to be fitted into the space portion; A fourth step of applying a primary shock absorber sealant applying a lining to form a coating layer of 3 mm in thickness with an impact absorbent sealant having adhesion and waterproofing properties in order to absorb a shock in a downward direction when the vehicle is traveling; A fifth step of installing a steel plate on the shock absorber sealant so as to prevent a lower settling and to prevent an upper shock crack; A second shock absorber sealant including an inner wall surface of the first cutting line and a second cutting line, and a second shock absorber sealant including an inner wall surface of the first cutting line and the second cutting line so as to fix the steel plate not to flow due to load during the vehicle traveling, Step 6: An aggregate sealant mixed with an aggregate suitable for expansion joints is put into a hot box of a sealant mixer dissolver, and then the aggregate sealant is dissolved in the appropriate temperature and the aggregate sealant is discharged to the working site while discharging the aggregate sealant. Step 7; And a surface sealant strongly resistant to ultraviolet rays so as to be applied in a wider width than that excavated so as to protect the aggregate sealant and to have a waterproof function, flatten the surface of the surface sealant using the heated rod-shaped iron, And an eighth step of finishing the surface by spraying a sealant mixed with a surface finishing material such as road color on the sealant.

In the fifth step, holes are formed at predetermined intervals on the steel plate. In some of the holes, a fixing pin is installed so that the fixing pin is embedded in the installed shock absorber sealant, and the fixing pin is installed Through the holes, it is desirable to insert the pre-installed shock absorber sealant into the holes to prevent the warping of the steel plate and the irregular seat movement.

The eighth step comprises: A guide line is set at a position spaced apart from a first cut line and a second cut line by a predetermined distance in the first step, and then a V-cut or a V- The surface sealant may be installed in a state in which a space through which the surface sealant can penetrate into the space formed by the V cutting or perforation cutting is secured in advance.

The V-cut formed along the guide line is formed to have a width of 2 to 3 mm and a depth of 2 to 3 mm. The perforation cutting is performed so that grooves having a depth of 10 mm are formed in a zigzag shape with a width of 10 mm, It is preferable that both end portions of the surface sealant are inserted into the space formed by the V cutting or perforation cutting and the middle portion of the surface sealant is installed to have a thickness of 2 to 5 mm.

When the surface sealant is laid in the eighth step, it is sealed so that the expansion and contraction are filled with a narrow surface and then the sealing is performed so that the expansion and contraction are filled with a wide surface, and ironing is performed with a heated iron rod, It is preferable to apply silica sand so as to increase the visibility of the asphalt.

The surface finishing material is preferably composed of any one of a waste tire chip having a size of 1 to 5 mm, an aggregate material having a size of 1 to 5 mm, and a urethane chip having a size of 1 to 5 mm.

According to another aspect of the present invention, there is provided a backup joint, comprising: a backup member installed to be spaced apart from a space and to be inserted into the space by elastic expansion joints for connecting two concrete structures that form a space between them; An impact absorbent sealant disposed on top of the backup material; An iron plate installed to be embedded in the impact absorbent sealant; An aggregate sealant disposed on an upper portion of the impact absorbent sealant; And an ultraviolet resistant surface sealant disposed on the aggregate sealant to protect the aggregate sealant and have a waterproof function; Wherein the surface sealant has a T-shape, the central portion of the surface sealant has a thickness of 2 to 5 mm, both ends are formed in two concrete structures to be inserted into the grooves, Preferably, the grooves are inclined inward facing each other, and both ends of the surface sealant are provided with inclined portions inward.

The steel plate is provided with holes spaced at a predetermined interval. A part of the holes is provided with a fixing pin. The fixing pin is installed in the impact absorbent sealant, and the shock absorber sealant Is inserted into the holes to prevent the rolling of the iron plate and the irregular movement of the iron plate.

Preferably, silica sand is sprayed on the surface of the surface sealant to improve the visibility of the asphalt.

According to another aspect of the present invention, there is provided a sealant mixer dissolver capable of mixing and melting a sealant material, comprising: a mixer unit capable of mixing and injecting a material; A heater unit capable of heating the mixer unit; A discharge chute installed in communication with the mixer unit to discharge the material; And a discharge height adjuster capable of lifting the discharge chute when a discharge of the material through the discharge chute temporarily occurs, wherein the discharge height adjuster includes: a frame body in which the mixer part, the heater part, and the discharge chute are installed; A wheel installed on the frame so as to facilitate the movement of the frame and spray the material discharged through the discharge chute to a desired position on the road; And a support table provided on the frame for supporting and stopping the movement of the frame through the wheel, wherein the support is detachably installed on one side of the mixer unit, A props consisting of a rolled iron; And a small furnace stove installed at one side of the mixer unit to heat the props.

According to the sealant mixer dissolver according to the present invention, the expansion joint and the expansion joint construction method using the same, it is possible to improve the adhesiveness of the sealant so that the structure of the expansion joint is robust, There is an effect of improving the durability.

1 is a view showing a structure of a stretch joint according to the present invention,
2 to 22 are views sequentially illustrating a method of constructing and expanding joints according to the present invention,
23 to 26 are a front view, a rear view, a plan view, and a side view of the sealant mixer dissolver.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description of the present invention, the following specific structure or functional description is merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms , And should not be construed as limited to the embodiments described herein.

In addition, embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the present invention.

As shown in the drawings, the present invention is a stretch joint that elastically connects two concrete structures 10 spaced apart and forming a space portion 12 therebetween, And a shock absorber sealant 30 is installed on the upper portion of the backup material 20. [

At this time, an iron plate 40 is installed in the shock absorber sealant 30, and it is preferable that the shock absorber sealant 30 is applied twice in order to embed the iron plate 40.

At this time, it is preferable that holes are formed at a predetermined interval in the steel plate 40, and a part of the holes is provided with a fixing pin 44 so that the fixing pin 44 is embedded in the impact absorbent sealant 30 And the shock absorber sealant 30 is inserted into the holes through the holes in which the fixing pin 44 is not installed, thereby preventing the pressing of the iron plate 40 and irregular seat movement.

An aggregate sealant 50 is installed on the upper portion of the shock absorber sealant 30 and an ultraviolet resistant surface sealant 60 is provided on the aggregate sealant 50 to protect the aggregate sealant 50 and to have a waterproof function. Is installed and configured.

At this time, the surface sealant 60 is preferably T-shaped. That is, the central portion of the surface sealant 60 has a thickness of 2 to 5 mm, and both ends are formed in the two concrete structures to be inserted into the grooves. At this time, it is preferable that the grooves are inclined inward facing each other so that both ends of the surface sealant 60 are installed so as to have inclined portions inwardly. This is because the surface sealant 60 is firmly fixed to the concrete structure 10 So that it does not easily fall off.

On the other hand, silica sand may be sprayed on the surface sealant 60 to increase the visibility of the asphalt, and the disturbance to the driver's field of view may be eliminated by spraying the silica sand.

FIG. 2 to FIG. 22 are views sequentially illustrating a method of constructing and expanding joint according to the present invention.

As shown in FIG. 2, work spaces are secured in two concrete structures 10, that is, bridges and asphalt, which are spaced apart and form a space 12 between them. For example, installation of la va-con and transportation water are installed.

As shown in Fig. 3, the cutting site is marked and cut, and then excavated as shown in Fig. In this case, in the conventional method, the work time is lengthened due to the cutting with the hand-breaker, which causes a problem of lengthening the traffic congestion period. In order to solve the problem, the present invention uses a minimum width 1M crane equipment to complete the excavation in a short time .

The cutting according to the present invention is performed by cutting the concrete structure 10 along the first cutting line 14a and the second cutting line 14b at a predetermined interval to the outside of the space 12, 14a and the second cutting line 14b.

Also, in order to prevent the penetration of moisture on the road surface in order to reinforce the weakness of the drain method of waterproofing after the water permeation in the existing method, it is preferable to spray the sealant to be formed in the post-process in a T- As shown in FIG. 5, a guide line is set at a position spaced apart from the excavated portion by a predetermined distance, and a V-cut 16a or a perforated cut 16b is formed along the guide line so that a sealant It is preferable to secure a space that can be infiltrated in advance.

Preferably, the V-cut 16a is formed to have a width of 2 to 3 mm and a depth of 2 to 3 mm, and the perforation cut 16b is formed to have a groove having a depth of 10 mm in a zigzag shape with a width of 10 mm .

As shown in Figs. 6 to 7, the excavated area is dried. At this time, since the excavated part contains moisture for a long period of time and contains a lot of water, it is necessary to perform a repair work in a place where cracks or cracks occur during excavation work, and to dry the water It is good to make sure. That is, in the existing method which is a problem, since it is dried by the direct-drying method using LPG gas, there is a danger in the operation. Therefore, in the present invention, by using a movable ultraviolet drier which is an indirect drying method capable of heating at an instant temperature of 150 to 700 It is desirable to completely dry the attachment area through prevention of safety accidents and heating at appropriate temperature.

As shown in Fig. 8, a backup material 20 is installed in the space 12, and a shock absorber sealant 30 having an adhesive component on the backup material is firstly applied as shown in Fig. It is preferable that the shock absorber sealant 30 is excellent in the primary adhesive force to absorb the impact in the downward direction when the vehicle is traveling, and it is preferable to use a shock absorber sealant having a waterproof function. It is preferable to apply it and apply it.

As shown in Fig. 10A, an iron plate 40 is provided on the shock absorber sealant 30. Fig. This steel plate 40 can prevent the lower settling and prevent the occurrence of the upper shock crack.

10B, holes 42 may be formed at predetermined intervals in the steel plate 40. In some of the holes 42, a fixing pin 44 may be provided as shown in FIG. 10E, The shock absorber sealant 30 is installed so as to be embedded in the shock absorber sealant 30 provided with the fixing pin 44 and the holes 42 in which the fixing pin 44 is not provided. Is inserted into the holes 42 so as to prevent the rolling of the iron plate 40 and the irregular seat movement. That is, as shown in FIG. 10, it is preferable that the holes 42 formed in the steel plate 40 are alternately used as the sealant inducing hole and the fixing pin mounting hole.

As shown in FIG. 11, a shock absorber sealant 30 is secondarily applied on the steel plate 40. At this time, it is preferable to include the inner wall surface formed along the first cutting line 14a and the second cutting line 14b. Such a shock absorber sealant 30 can maintain a high absorption capacity and a role of fixing the steel plate 40 so as not to flow due to a load caused by vehicle traffic.

12 shows the shock absorber sealant material to be applied once and twice, and the iron plate 40 is embedded in the shock absorber sealant 30 by installing the shock absorber sealant material once and twice. Can be installed.

As shown in Fig. 13, an aggregate sealant 50 is laid on the shock absorber sealant 30. Fig. The aggregate sealant (50) is put into a hot box using a sealant mixed with an aggregate suitable for expansion joint, and then melted at an appropriate temperature. Then, the aggregate sealant (50) is discharged through the injection line to the work site by an automatic system. That is, the sealant mixer is melted by using the sealant mixer dissolver 200, and the sealant mixer dissolver is moved while being discharged and installed.

At this time, it is preferable that the aggregate sealant 50 to be used is a material in which aggregates are mixed in advance as shown in FIG.

As shown in FIG. 15, the surface sealant 60 is installed on the top of the aggregate sealant 50, wherein the surface sealant 60 is preferably formed in a T shape. On the other hand, the surface sealant 60 can be coated with a sealant resistant to ultraviolet rays, so that the surface sealant 60 can protect and protect the aggregate sealant 50, It is preferable to apply it more widely.

At this time, the surface sealant 60 used is put into the sealant mixer dissolver 200 as shown in FIG. 16 to mix and melt the material, and the sealant mixer dissolver 200 is moved as shown in FIGS. 17 to 18 It is preferable to dispose it by discharging it.

On the other hand, as shown in Fig. 19, it is preferable that the surface sealant is filled with a stretch joint (crack) at a narrow surface first, then sealed (mixed material), then filled with a stretch joint (crack) , It is preferable to work with ironing with heated iron rod to perform flat work so that it can penetrate well, and then apply silica sand to increase the visibility of asphalt. That is, as shown in FIG. 20, a surface heating ironing process is performed in which the heated and heated iron rod is used to smoothly push the surface sealant 60 to enhance the appearance and adhesion of the surface sealant 60.

Thereafter, as shown in FIG. 21, the new construction and repair are classified according to the site conditions, and aggregate materials such as road color (see FIG. 22) are sprayed on the surface sealant so as to be similar to the existing road colors, .

In this way, when the aggregate is sprayed, the surface sealant 60 is worn to minimize the phenomenon of seam penetration and moisture penetration, thereby extending the service life. At this time, as a surface finishing material, a waste tire chip having a size of 1 to 5 mm may be used, an aggregate (silica sand) having a size of 1 to 5 mm may be used, a urethane chip having a size of 1 to 5 mm may be used, The surface of the sealant can be finished without the sealant.

When the construction of this method is completed, the traffic is opened and the vehicle is allowed to pass.

Advantages according to the present invention include workability. For example, in the existing manual method, the precise performance was adapted to the site by mixing the sealant and the aggregate amount one by one for the accurate use of the material. In the existing method of directly using the gas fire, the sealant was indirectly heated It is different from the existing method because it is made by the performance of the suspended material because it does not change the physical properties of the sealant by using the heating method.

Also, in the conventional method, the sealant and the aggregate are separated from each other, but in the method of the present invention, the sealant and the aggregate are suitably mixed to form a lump, thereby improving the workability.

On the other hand, the advantages of the present invention are economic efficiency. For example, by using mechanized equipment (sealant mixer dissolver), it is possible to shorten the processing time and shorten the labor cost due to manual work, thereby reducing the construction cost. By using the accurate material, It is possible to reduce the cost by about%.

Particularly, the present invention has an advantage of being durable. For example, in the conventional method for identifying and installing the sealant dissolved in the eye, the sensor of the machine is installed at a suitable temperature, and the highest water resistance can be maintained by maintaining the highest efficiency.

The present invention as described above has novelty, that is, a lower shock absorber sealant which is not used in the prior art is used, and the steel plate is wrapped and the flowability of the steel plate is cut off. ), While the sealant and the aggregate were used respectively. However, the new material method of the present invention analyzed the proper elongation and the durability of the adhesive restoration durability and mixed them into one. In the past, Using iron iron, it uses flat iron irons to improve flat surface treatment and adhesion to the surface. Depending on the situation, it uses finishing aggregate to prevent wear of finish sealant and prolong its life by using surface finishing aggregate. Although the aggregate sealant is used twice in the present invention, There is also the advantage of closing the construction.

23 to 26 are views showing a front view, a rear view, a plan view and a side view of a sealant mixer dissolver.

As shown in these drawings, the sealant mixer dissolver capable of mixing and melting the sealant material includes a mixer unit 201 capable of mixing and introducing a material, a heater capable of heating the mixer unit 201, When the discharge chute 203 which is installed in communication with the mixer 201 and is capable of discharging the material and the discharge chute 203 are temporarily obstructed in discharging the material through the discharging chute 203, And an outlet height adjuster 204 capable of lifting the door 203.

The mixer unit 201, the heater unit 202 and the discharge chute 203 are installed integrally with the frame body 205 and the wheels 206 are installed on the frame body 205 to move the frame body 205 So that the material discharged through the discharge chute 203 can be sprayed to a desired position on the road and the frame 205 is supported by the support frame 207 to stop the movement of the frame body through the wheel 206 Is installed.

A props 208 detachably attached to one side of the mixer 201 and made of a rod iron for flattening the material discharged through the discharging chute 203 and sprayed through the discharging chute 203, 208 are installed in the mixer unit so as to be heated.

Accordingly, the present invention is a novel invention having a workability, economy, and durability that can be conveniently and accurately operated by melting a pre-mixed material by a predetermined amount using a sealant mixer dissolver.

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10 - Concrete structure 20 - Backup material
30 - Shock absorber sealant 40 - Steel plate
50 - Aggregate sealant 60 - Surface sealant

Claims (10)

delete delete delete delete delete delete delete delete delete In a sealant mixer dissolver capable of mixing and melting a sealant material,
A mixer unit capable of mixing and feeding a material;
A heater unit capable of heating the mixer unit;
A discharge chute installed in communication with the mixer unit to discharge the material; And
And an outlet height adjuster capable of lifting the discharge chute when the discharge of material through the outlet chute is temporarily impeded,
A frame provided with the mixer unit, the heater unit, and the discharge chute;
A wheel installed on the frame so as to facilitate the movement of the frame and spray the material discharged through the discharge chute to a desired position on the road; And
And a support table installed on the frame body to stop and support the movement of the frame body through the wheels,
A proximal end of a rod-shaped iron for detachably attaching to one side of the mixer and discharging and dispensing the material through the discharging chute; And
And a small-gauge stove installed at one side of the mixer unit to heat the props.

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