KR101596013B1 - Concrete repair precess using mtltiple vibrator - Google Patents

Abstract

The present invention relates to a method for repairing a damaged concrete pavement in the field of civil engineering. More specifically, for a re-pavement of a damaged part, the cutting, washing, and brooming work of the damaged part as well as the casting of concrete are performed in the repair work. While removing bubbles from the concrete, an automatic film former included in the concrete composition is floated onto the surface of the concrete swiftly, by an additionally prepared vibration process to reduce the initial occurrence of cracks on the repaired surface and frequency of damage reoccurrence. The vibrator used in the vibration process is made in a compact size, in order to enable a user to control the vibration process. Thereby, the repair work can be applied to places with a small area.

Description

TECHNICAL FIELD [0001] The present invention relates to a concrete repair method using a multiple vibrator,

More particularly, the present invention relates to a method of repairing broken packages in the field of civil engineering, and more particularly, to a method of repairing damaged packages by cutting, cleaning, brooming, The present invention further provides a vibration process for removing air bubbles in concrete and causing the autocapsulating material contained in the composition to quickly float on the concrete surface to reduce the incidence of initial cracking and re- The present invention relates to a method for repairing concrete using a multivibrator, which can be used for a concrete repair area in a narrow area by miniaturizing the vibrator used for the vibration process so that the user can control it.

In order to prevent cracks from being generated in the concrete when the concrete is laid, various techniques for removing bubbles by applying vibration in the concrete using a vibration means called 'vibrator' have been proposed.

Such a conventional technique is disclosed in Korean Patent No. 10-0782997 entitled " Vibrator for a concrete pouring vibrator and method for manufacturing the same,

In the conventional art, a BLDC motor having a power supply cable connected to a body is rotatably incorporated in a body, a tab is attached to an upper portion of the body, and a shoe is connected to a lower portion of the body. The present invention relates to a vibration bar of a vibrator for generating vibration while rotating a vibrator, and more particularly, to a vibration bar for a concrete pouring vibrator capable of removing air bubbles contained in a mortar during a concrete pouring operation, and a manufacturing method thereof.

Also, as a prior art, there is a " vibrator for removing concrete bubbles " in Japanese Patent Application Laid-Open No. 10-2014-0063160,

The conventional technique includes a fixing part detachably assembled from a lower end of a vibrating rod to a flexible hose connected to the vibrating rod at a position spaced apart from the flexible hose by a predetermined distance and a fixing part having one end fixed to the fixing part, And a shock absorber for preventing a noise from being generated due to direct contact between the vibrating bar and the formwork, the vibrating rod being connected to the vibrating rod, .

Further, according to the prior art, there is a registered utility model No. 20-0224729 entitled " Vibrating apparatus for concrete molding "

The above-mentioned conventional technique has a vibration means having a vibrating bar for vibrating the concrete, an elevating means for elevating and lowering the vibrating means, and a frame for supporting the elevating means so that the vibrating means is elevated and can perform a concrete vibration operation And a vibration device for concrete molding is proposed.

However, the above-mentioned prior arts relate to a vibrator used for giving vibration to suppress the occurrence of bubbles in concrete. Such a vibrator is a large-sized equipment. When the concrete is laid for the first time, it is advantageous for use in a large area, There is a problem in that it is difficult to use it for maintenance work.

In addition, existing pavement pavement and repair of concrete pavement are cut and pavement repair using concrete. In this case, the most important factor of quality after repairing concrete pavement is bond strength, and when the bond strength is excellent, crack development and re - fracture occur frequently on the repair surface. Therefore, the increase of the bond strength is the most important process for securing the quality after construction and it is brooming work. However, even if the brooming works well, there is a shortage of bond strength because of the surface condition of the cutting surface that the repair concrete is hard to adhere completely to the cutting surface. Particularly, a cutting face is cut using a packaging cutter called a rod cutter, and a rod cutter is used for cutting a concrete face by using a drum equipped with a plurality of iridium blades, and a large number of uneven faces are formed. In addition, the cut surface is generally cleaned using a water jet, and the washing water is removed by vacuum suction. Since the uneven surface by the rod cutter is insufficient in the brooming work and the brooming work when the repair concrete is put, So that it is liable to be caused by poor adhesion of the repaired concrete.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a concrete repair method using a multi vibrator,

The cutting part of the concrete to be repaired is cleaned by cutting and cleaning processes and the foreign matter generated in the cutting part is cleaned and the adhesion of the concrete is improved through the brooming work process. However, when the concrete is laid, To remove bubbles or water in the concrete and to float the autocapsulant contained in the concrete composition to the surface as fast as possible, thereby improving initial cracking and improving the adhesion strength, thereby providing an excellent repair method for repairing concrete .

Another object of the present invention is to provide a method of repairing concrete using a vibrator that is miniaturized so that the vibrator can be easily used by a user in a work environment having a small area requiring maintenance due to the housing, the moving member, and the vibration member.

Further, since the moving member is provided in the vibrator, it is easy to move during the moving operation. By having the moving member and the vibrator in the supporting member, the vibrator can be inserted into the concrete at the same depth and moved in parallel, The present invention also provides a method for repairing concrete.

In order to achieve the above object, a concrete repair method using a multivibrator according to the present invention comprises:

A cutting step of cutting the package to form a cutting portion;

A cleaning step of cleaning the cut portion;

A working step of performing brooming on the cleaned cutting portion;

And a concrete pouring step of pouring concrete into the cutting portion after the brooming operation,

The above-

And a vibration process using a vibrator to remove bubbles in the concrete,

The vibrator

A moving member provided in the housing, and a vibration member provided in the housing to cause vibration in the concrete.

As described above, according to the concrete repair method using the multivibrator according to the present invention,

A cleaning step, a brooming work step, and a concrete casting step for forming a cut part in a package to be repaired and for pouring concrete into a cut part, the brooming work step and the vibration included in the pouring step It is possible to remove the air bubbles and water in the concrete through the process and float the autocapsulant to the surface so as to improve the initial cracking and adhesion after the construction,

The vibrator for the vibration process is composed of a housing, a moving member, and a vibration member, so that the user can move easily, so that the construction is convenient,

Since the moving member and the vibration member are provided on the supporting member provided in the housing, a plurality of vibration members are provided at equal intervals, and a constant vibration effect can always be provided.

Further, since the vibration member can be inserted into the concrete at the same depth in the concrete by the support member, uniform vibration effect can be imparted, so that it is possible to further secure the adhesive force after the construction.

In other words, the repair concrete is laid at the time of pavement maintenance, and the pavement surface is made quick by using a multiple vibrator and the autoclaving agent is quickly floated to the surface, thereby improving the adhesion strength of the repair concrete and suppressing the occurrence of initial cracks .

1 is a sectional view of a cutting surface according to a raising process according to the present invention.
2 is a block diagram of a concrete repair method according to the present invention.
3 is a perspective view of a vibrator according to the present invention;
4 is a schematic view of a vibrator according to the present invention
5 is a view showing a modification example of the vibrator according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious 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 invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 and 2, a concrete repair method using a multivibrator 10 according to the present invention (hereinafter referred to as a concrete repair method) includes a cutting step, a cleaning step, a brooming work step 300, And a pouring step (400).

More particularly, in the case where a crack is generated in the existing package and the breakage is found, repair work is performed for safety. The present invention is based on this repair method, and in order to remove the broken package, So that the cutting process for forming the cut portion is performed. In this cutting process, generally, a package cutter called a rod cutter is used to cut such a package. The rod cutter generally cuts the existing packaging face by using a drum equipped with a diamond blade, Plane is generated. In addition, foreign matter may be included in such a cut portion, and a cleaning process using water or the like is performed in order to prevent the adhesion strength of concrete to be described later from being lowered by the foreign matter.

After the cleaning process, the brooming 310 is performed to improve adhesion with concrete before the concrete is poured. The brooming 310 is generally composed of sludge of a maintenance concrete composition.

After the brooming 310 coating process 300 is completed, the maintenance concrete 410 to be used for repairing is installed.

1, the repair concrete 410 is composed of a mixture of ultra fast cement, aggregate, polymer resin, autocapsulant, additive, and water, and the autocapsulant is a polymer resin, a bead and a wax (Wax).

At this time, when the repair concrete 410 is laid, bubbles, water, etc. are generated in the concrete, which lowers the adhesive force and may cause cracks again after the construction. Therefore, in order to solve such a problem, the vibration process using the vibrator 10 is added to the casting process 400 to release the water and bubbles formed in the concrete by the vibration to improve the cohesion of the concrete, And at the same time, floats the surface of the autocapsule body to the surface within 10 minutes after pouring, thereby suppressing initial cracking.

3 and 4, the vibrator 10 is miniaturized so that the user can easily use the vibrator 10, and the housing 11 and the housing 11 And a vibrating member 15 provided on the housing 11. The vibrating member 15 includes a movable member 13 and a vibration member 15,

More specifically, the housing 11 includes a handle 111 and a support member 113 provided at the end of the handle 111 and intersecting the handle 111 . A control unit 111A is provided on the handle 111 so as to control the operation and frequency of the vibrator 10. A support member 113 is attached to the end of the handle 111 And are formed so as to be orthogonal to each other so as to have a 'T' shape in plan view. Therefore, when the user pushes the handle 111, the support member 113 is naturally moved along the cut portion to be repaired. At this time, the movable member 13 is attached to both ends of the support member 113 And the moving member 13 is made of a wheel so that the moving member 13 moves along both sides of the cutting portion to improve the convenience of use.

In addition, a plurality of vibrating members 15 are further provided between the pair of moving members 13. More specifically, although the vibrating members 15 are shown as being two in the drawing, Or may be provided in various numbers such as two, three, etc., and they are coupled to the support member 113 at equal intervals.

The vibration member 15 may be composed of various vibration rods used in the prior art and the vibration member 15 may protrude further downward from the supporting member 113 than the moving member 13, In order to be able to be inserted into the apparatus.

The vibrator 10 preferably has a frequency of 3,000 to 20,000 revolutions per minute and is used for removing air and water in concrete. Although the concrete vibrator 10 is used for filling, the filling range of the concrete vibrator 10 varies considerably depending on the skill of the operator, and the filling amount varies depending on the position of the vibrator 10. Therefore, in order to maximize the filling property of the packed and repairable concrete 410 caused by such proficiency, position, and the like, the present invention determines the width of the cut portion (repair surface) of the vibrating member 15 ) To the support member 113 at a rate of 0.5 to 0.6 m per minute to maximize the filling to improve the physical properties of the concrete such as adhesion and cracking.

If the vibrating member 15, that is, the vibrator 10 has a frequency of less than 3,000, it is difficult to expect a filling effect. If the vibrating member 15 is 20,000 or more, the size of the vibrator 10 must be increased. . In addition, when the running speed of the vibrator 10 is less than 0.5 m / min, the amount of air in the concrete becomes too small, so that the resistance against freezing and thawing of the concrete may deteriorate. It is difficult to do.

In addition, when the distance is smaller than 0.1 m, the adjacent vibration members 15 may not be effective due to mutual interference or excessive filling may occur. When the vibration member 15 is larger than 1 m, The concrete may be absorbed and the filling property may be deteriorated.

Therefore, the interval between the vibration members 15 is preferably 0.1 to 1 m, more preferably 0.15 to 0.5 m, and the size, diameter, and output of the vibration member 15 can be variously selected by the user depending on the concrete Can be used.

It is preferable that the vibration member 15 should be used immediately after the installation of the repairing concrete 410. It is preferable that the vibration member 15 is operated at a distance of 0.1 m or more at the lower end of the cut portion. So that the concrete cutting portion or the vibration member 15 may be damaged.

Table 1 below shows the performance evaluation of the concrete repair method using the multivibrator 10 according to the present invention.

[Table 1]

As shown in Table 1 above,

In the case of using the multivibrator 10, the bonding strength and the compressive strength after 200 cycles of freezing and thawing were all improved as compared with the case where the vibrator 10 was not used. Compared with the case of using the vibrator 10 by hand, The strength is also measured to be excellent, and it can be confirmed that when the present invention is used, the occurrence of defects after concrete guaranteed repair can be reduced.

In addition, in the repair method according to the present invention, the concrete casting process 400 may be repeated a plurality of times, and the scope of the rights should not be limited.

5 shows a modification of the multivibrator used in the present invention. A supporting member 113 having a different number of the vibration members 15 according to a space to be inserted is inserted into the knob portion 111, And a fastening means 60 is further provided to facilitate such replacement.

The fastener 40, the grip 111 and the fastening means 60 will be described in more detail.

The fastener 40 is provided at an end portion of the handle 111 and a hollow 41 is formed therein so that the insertion portion 63 provided in the support member 113 can be inserted and fastened.

The insertion part (63) is inserted into the hollow (41) of the fastener (40) and fastened. The end of the insertion part 63 preferably has a square structure corresponding to the shape of the hollow 41 of the fastener 40.

The fastening means 60 limits the unintentional separation of the inserts 63 inserted into the fasteners 40 and allows for easy separation when intentionally disconnected.

The fastening means 60 includes an elastic member 61, a fitting groove 65, an internal groove 67, and the like.

The elastic member 61 includes a circular twist portion 611, a pressing portion 613, and a bent portion 615.

The elastic member 61 is formed by folding a metal wire having excellent elasticity one-at-a-time and bending both end portions so that the circular twisted portion 611 is formed at the center, and the pressing portion 613 and the bent portion 615 .

The circular twist portion 611 is disposed in the inner hollow 41 of the fastener 40 and the pressing portion 613 is disposed outside the fastener 40. The bent portion 615 And is caught and engaged in the catch groove 67 formed on the inner surface of the fastener 40.

A movement hole 68 is formed on one side wall of the fastening hole 40 so as to allow the elastic member 61 to be housed in the fastening hole 40 so that the round hole 611 and the bent portion 615 The elastic member 61 can be moved along the movement hole 68 while being inserted into the hollow 41 and formed in the connection hole 69 in the vertical direction of the movement hole 68, A minute protrusion 69a for reducing the width is protruded in the hole so that the elastic member 61 moved to the connection hole is not released.

The catch groove (67) formed on the inner surface of the fastener (40) has a jar structure so that the bent portion (615) is held in a detentable manner and is not easily detached.

The bent portion 615 of the holding groove 67 is positioned such that the hole formed by the circular twisted portion 611 is directed toward the hollow 41 of the fastening hole 40, Thereby allowing the portion 63 to be inserted without any difficulty. That is, the circular twist portion 611 is not arbitrarily rotated so that the hole formed by the circular twist portion 611 coincides with the hollow 41 direction of the fastener 40.

The insertion portion 63 is provided at one side of the support member 113 and is inserted into the hollow 41 of the fastening member 40 and is urged toward the inside of the circular twist portion 611 of the elastic member 61. [ Is inserted in the fitting manner. That is, the outer diameter of the insertion portion 63 is longer than the inner diameter of the circular twist portion 611, so that the insertion portion 63 is inserted into the circular twist portion 611 in an interference fit manner. At this time, the elastic member 61 has elasticity so that the inner diameter of the circular twisted portion 611 can be easily expanded, and the insertion portion 63 can be easily inserted.

The fitting groove 65 is formed in the outer periphery of the insertion portion 63, and the circular twist portion is inserted and engaged.

The process of fastening the handle 111 to the support member 113 and the process of separating the handle 111 from each other through the fastening means 60 will be briefly described below.

When the front end of the insertion portion 63 is pushed into the hollow 41 of the fastener 40 when the holding member 113 is fastened to the holding portion 111, 611. At this time, the inner diameter 611 of the circular twist portion naturally expands while being in contact with the insertion portion, allowing the insertion portion to advance, and the insertion portion 63 is inserted at a predetermined distance or more, The inner diameter of the circular twisted portion 611 is reduced by the resilient restoring force and is seated in the fitting groove 63 so that the insertion portion 63 is prevented from retreating, The member (113) is fastened to the fastener (40).

Next, when the support member 113 is separated from the grip portion 111, when the operator presses the pressing portion 613 of the elastic member 61 with his or her finger, the inner diameter of the circular-shaped twist portion 611 expands, The portion 611 is released from the fitting groove 65 and the insertion portion 63 is separated from the fastener 40 without any interference when the supporting member 113 is pulled in this state.

While the present invention has been described with reference to the accompanying drawings, 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. And substitutions are to be construed as falling within the scope of protection of the present invention.

P: Concrete repair method
300: Brooming work process 400: Concrete placement process
310: Bruming 410: Repair concrete
10: vibrator 11: housing
111: handle 113: support member
13: moving member 15: oscillating member

Claims (4)

A cutting step of cutting a conventional package to form a cut portion;
A cleaning step of cleaning the cut portion;
Performing a brooming (310) operation on the cleaned cutting portion (300);
And a step (400) of pouring concrete into the cutting portion where the brooming operation is performed,
The pouring step (400)
And a vibration process using a vibrator (10) for removing water and bubbles in the concrete and floating the autocompounding body to the surface,

The vibrator (10)
A moving member 13 provided in the housing 11 and a vibration member 15 provided in the housing 11 to cause vibration in the concrete,
The housing (11)
And a support member 113 provided at an end portion of the grip portion 111 and perpendicular to the grip portion 111,
The moving member 13 is provided on both sides of the support member 113, and the plurality of vibrating members 15 are provided between the moving members 13,

A fastener 40 having a hollow 41 is formed at the end of the handle 111. An insertion part 63 is formed in the support member 113 to be inserted into the hollow 41,
The fastening means 40 and the insertion portion 63 are further provided with fastening means 60 for fastening them,
The fastening means (60)
The elastic member 61 forming the pressing portion 613 and the bent portion 615 provided on both sides of the circular twist portion 611 and the elastic member 61 formed on the outer peripheral edge of the insertion portion 63 And an insertion groove 65 in which the circular twisted portion 611 is inserted and engaged and an insertion groove 67 formed in the inner surface of the fastening hole 40 while the bent portion 615 is securely inserted , ≪ / RTI >
A movement hole 68 is formed in one side wall of the fastener 40 so that the elastic member 61 is inserted into the hollow hole 41 after the round twisted portion 611 and the bent portion 615 are inserted into the hollow 41, 68,
A connection hole 69 is formed in the vertical direction of the moving hole 68 and a fine protrusion 69a for reducing the width is protruded from the connection hole 69 to prevent the elastic member 61 from being separated Wherein said concrete repairing method comprises the steps of: The method according to claim 1,
Wherein the recessed groove (67) formed on the inner surface of the fastener (40) is formed in a jar structure so that the bent portion (615) can be constrained. 3. The method according to claim 1 or 2,
Wherein the vibration process is performed at a speed of 0.5 to 0.6 m / minute, and a vibration frequency of the vibration member is oscillated at 3000 to 20,000 times / minute. delete

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