JP2004514077A - Processing method for gaps and cracks in the airfield runway surface - Google Patents

Abstract

A process of finishing slits in the surface layer of a runway involves a first step in which a slit (11) is heated such that the surface of the slit (11) is dry, and that the capillary holes of the slit (11) are opened up. The surface of the slit (11) is then provided with a coating (50) of an asphalt synthetic agent. The coating (50) is subsequently heated to cause the molecules of the asphalt synthetic agent to diffuse into the capillary holes of the slit (11), thereby preventing water from finding its way into the gradation layer (A) of the runway. The slit (11) is provided with a soft interface (60) capable of preventing the water from finiding its way into the slits of the surface layer of the runway. The soft interface (60) is securely attached to the slits.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method of treating and processing gaps and cracks in the surface of an airfield runway, and particularly when a new airfield runway is to be constructed or a runway already in use is cracked in the surface. Involved in the method of waterproofing at individual locations.
[0002]
[Prior art]
As a well-known technique, when a runway of an airfield having a length of 3000 m, a width of 60 m and a thickness of 30 cm is to be constructed at an airfield (including a place for taking off and landing of an airplane and a tarmac), the procedure is as follows. is there.
[0003]
A. As shown in FIG. 1, a surface layer 10 made of a material such as concrete (PC) or reinforced concrete (RC) is provided on the ground A.
B. As shown in FIG. 2, several surface units 10A having the same length are paved at intervals of 6 m along the runway of the airfield.
C. As shown in FIG. 3, when the concrete (PC) or reinforced concrete (RC) of the surface unit 10A is dried and hardened, several surface units 10B are paved to complete the runway surface layer 10 of the airport.
D. As shown in FIG. 4, a vertical elastic gap 11 having a depth of 3 cm and a width of 1 cm is formed in the surface layer 10 where the surface unit 10A and the surface unit B are in contact.
E. FIG. As shown in FIG. 5, an artificial crack 12 having a length equal to the length of the runway of the airfield and having a vertical length is provided on the runway surface layer 10 at regular intervals and divided into several hundreds. No irregular cracks are formed in 10.
F. As shown in FIG. 6, on the artificial crack 12, a horizontal stretching gap 13 having a depth of 3 cm and a width of 1 cm is further opened, and a cut is provided on the runway surface layer 10, and a plurality of blocks 14 are formed. (See FIG. 7). This prevents expansion and contraction due to a change in temperature after construction, and prevents the runway surface layer 10 from being uneven or damaged.
G. FIG. As shown in FIGS. 8 and 9, a PE rod 15 is provided in each of the vertical elastic gap 11 and the horizontal elastic gap 13, and a filler 16 such as PU (polyurea) is placed on the PE rod 15. Coated. In this way, all the vertical expansion gaps 11 and the horizontal expansion gaps 13 on the surface layer 10 are all filled and sealed, and the prevention process is completed.
[0004]
B. of the above procedure. And C.I. In the surface layer unit 10A and the surface layer unit 10B, since the construction is performed twice, the place where both are adjacent naturally has the secondary construction gap 17 (see FIGS. 3, 4, and 8). Has been formed and E. coli during the procedure. At the same time as the artificial crack 12 is completed, the bottom of the artificial crack 12 forms a natural crack 18 toward the ground A (see FIGS. 5, 6, and 9). The filler 16 only bonds the gap 11 to the wall surface of the horizontal expansion gap 13 and expands or contracts due to a change in weather or temperature, and the filler 16 becomes one of the vertical expansion gap 11 and the horizontal expansion gap 13 or Both cause peeling.
This is because the filler 16 is a soft material, and the surface units 10A and 10B are PC or RC rigid materials, that is, the difference between the properties of the two materials is large, and the expansion coefficients naturally differ. Therefore, the two peel off after a certain use time elapses. The vertical expansion gap 11 and the horizontal expansion gap 13 are respectively formed with gaps 11 ′ and 13 ′ (see FIGS. 10 and 11) for injecting water between the filler 16, and water W is secondary from the gap 11 ′. It enters into the construction gap 17 and further into the ground A (see FIGS. 8 and 10), or from the gap 13 ′ through the artificial cracks 12 and the cracks 18, and into the ground A (FIGS. 9 and 11). ), Aggregates such as fine soil and stone in the ground A are washed away, and a cavity A1 (see FIG. 12) is formed.
Therefore, the strength of the structure of the surface layer 10 located in the vicinity of the vertically extending and contracting gap 11 is weakened, and when landing of an airplane or other heavy equipment or the like is parked, the pressure applied from the tires causes the runway surface 10 to be damaged. Is pressed and collapsed, or cracks 19 (see broken lines in FIG. 13) are generated. The splinters 19 are cleaned by a cleaning car or a human hand. If the splinters 19 are not cleaned, it is sufficiently considered that the splinters 19 will jump up by the front wheels of the airplane and be sucked into the engine, so that the maintenance is performed. Not only is it expensive, but it can also lead to fatal accidents.
[0005]
These known fillers 16 do not completely penetrate into the pores of the vertically and horizontally stretchable gaps 11 and 13, so that they tend to peel off during expansion and contraction, and cause loss of the waterproof function. It has become one of. Therefore, when the time elapses, the vertical and horizontal expansion gaps 11 and 13 change into a main route for the water W to enter the ground A and corrode, so that a certain time elapses in the filler 16. A method of filling each time with a new one is adopted, thereby preventing the ground A from being corroded.
In addition, F.D. In the place where the vertical and horizontal expansion gaps 11 and 13 on the block 14 are adjacent to each other (see FIG. 14), the ground A is inevitably the fastest place for the aggregate to flow away. On the blocks 14 adjacent to the vertical and horizontal expansion gaps 11 and 13, cracks 14 ′ are most likely to be formed in the surface layer. It shortens the service life. The following is a list of repairing methods that have already been implemented to prevent this.
[0006]
a1. As shown in FIG. 14, narrow gaps 141 are previously provided on the blocks 14 on both sides of the surface crack 14 '.
a2. As shown in FIG. 15, the surface layer 10 between the two narrow gaps 141 is shaved to form a shallow groove 142 having a width of 30 cm and a depth of 10 cm.
a3. As shown in FIG. 16, a filling material 20 obtained by wetting and stirring a material such as an epoxy resin quartz sand, a cement concrete, and a fast-setting cement is applied in the shallow groove 142 to be flattened, and the surface crack 14 'is formed. Repair work.
[0007]
However, according to the method described above, the procedure a3. The filling material 20 filled in the shallow groove 142 is a mixture of epoxy resin quartz sand, cement concrete, fast-setting cement, and the like. The material of the surface layer 10 on both sides and the bottom of the shallow groove 142 is concrete (PC) or reinforced concrete ( RC), the difference in the expansion coefficient is large due to the difference in the material. Naturally, after a certain period of time, the two different materials are not dense due to the difference in their expansion and contraction, and the joint is not dense. A secondary working gap 21 (see FIG. 17) is formed between the bottom 20 and both sides of the shallow groove 10 and the bottom. Therefore, the moisture W enters the crack 14 ′ on the bottom surface of the shallow groove 142 from the two-time gap 21, and further flows into the ground A through the crack 14 ′ on the surface. Further, as shown in FIG. 18, the filling material 20 is pressed by the expansion of the four circumferential wall surfaces of the shallow groove 142 and then peels off, and a gap 23 is formed at the bottom of the shallow groove 142. The material 20 bulges upward and protrudes on the runway surface layer 10, causing punctures in tires such as airplanes and other heavy equipment running at high speed.
As described above, in the case where the number of surface cracks 14 'on the blocks 14 in the runway surface layer 10 increases, a method of entirely renewing the surface layer 10 will be adopted. The method is described below.
[0008]
b1. As shown in FIG. 19, the runway surface layer 10 of the airfield is shaved downward with a thickness of about 10 cm.
b2. Further, asphalt is sprayed on the surface layer 10 ′ after the shaving to form an adhesive layer 101.
b3. An asphalt concrete (AC) 30 having a thickness of about 5 cm is first laid on the adhesive layer 101, and PRF (Pavement Reinforcing Fabrics), which is a reinforcing material such as a polypropylene or polyester fiber net material, is laid on the asphalt concrete (AC) 30. 40 are provided.
b4. Finally, an asphalt concrete (AC) 30 having a thickness of about 5 cm is laid on the reinforcing material 40 to complete a new runway surface layer 30 '(see FIG. 20).
[0009]
[Problems to be solved by the invention]
As a disadvantage of the above-described method, a secondary working gap 17 or a natural crack 18 is also present in the old block 14 at the bottom of the surface layer 30 ′. Since the work is not performed, it can be said that the secondary construction gap 17 and the natural crack 18 generate a crack toward the new surface layer 30 ′ due to expansion and contraction due to gravity and weather change due to takeoff and landing of the airplane. .
If the usage time exceeds a certain period of time, the new surface layer 30 ′ also generates a gap 31 (see FIG. 20) due to these results, and the moisture W directly enters the ground A from the gap 31, causing a cavity or the like. The depression due to the rupture is gradually formed. Finally, the width of the gap 31 is further increased to generate a crack 19, and as a result, the service life of the surface layer 30 'is shortened.
Therefore, in order to prevent moisture from penetrating into the ground from cracks and gaps on the runway surface, prevent the generation of cracks, and secure the safety of airplane takeoff and landing and traveling, gaps and cracks in the runway surface of the airfield To provide processing and construction methods.
[0010]
[Means for Solving the Problems]
First, the crack surface prepared for construction was heated to rapidly dehydrate and dry and expand the pores, an appropriate amount of asphalt synthesizing agent was applied on the crack surface, and further cracking was caused by heating on the asphalt synthesizing agent. A soft surface that completely dissolves and penetrates into the pores on the surface, fills the cracks and completely seals them, and does not peel off on the cracks even if it expands and contracts due to a change in temperature. And completely shut out to prevent moisture from entering the ground on the soft surface.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
First, the asphalt synthesizing agent used in the present invention is a mixture of straight asphalt and blown asphalt (Blown Asphalt) at an appropriate ratio depending on conditions such as room temperature in a construction area. Occasionally, it exhibits the solubility and permeability of the parent material and the small parent material into the pores, and the adhesiveness that seals the gap between the surface layers of the parent material, and further enhances the sealing of the gap and the adhesion of the surface layer. Adhesiveness is provided by attaching a waterproof tape as much as possible. At room temperature, having elasticity provides drainage and antiseptic properties so that the surface layer can be stably paved with the building material.
[0012]
The construction method in the present invention is described below.
(1) First, the surface of the gap to be constructed is heated, and the surface of the gap is rapidly dehydrated and dried to expand the pores.
(2) Next, an appropriate amount of asphalt synthesizing agent 50 is applied to the gap surface after the heat treatment.
(3) Further heating is performed from above the applied asphalt synthetic agent 50 to completely dissolve and penetrate into the pores of the gap surface, and completely fill the gap opening without any gap. And
Prior to the start of the procedure (1), it is desirable to perform operations such as cutting, shaving, polishing, and cleaning.
[0013]
The construction procedure in the vertical stretch gap 11, the horizontal stretch gap 13, the surface layer crack 14 'of the block 14, and the resurfacing of the runway surface layer 10 in the runway surface layer 10 of the airfield will be described below.
As shown in FIG. 22 to FIG. 24, the procedure in the case of processing the vertical stretch gap 11 in the runway surface layer 10 according to the present invention is as follows.
(1c) The surface of the vertical stretching gap 11 is heated from above, and the surface of the gap 11 is rapidly dehydrated and dried to expand the pores.
(2c) Apply an appropriate amount of asphalt synthesizing agent 50 on the surface of the vertically stretched gap 11 after the heating.
(3c) Further heating from above the asphalt synthetic agent 50 paved in the step (2c), the inside of the pores of the gap wall 111, the gap bottom 112, and the gap top 113 of the vertical stretching gap 11, It is dissolved and penetrated in the working gap 17, and the gap opening of the secondary working gap 17 is completely sealed by filling to form the sticking surface 51 (see FIG. 22).
(4c) A waterproof tape 60 is attached on the attaching surface 51 (see FIG. 23).
(5c) A high-temperature asphalt mixture 50 'is injected into the vertically extending and contracting gap 11 and reaches the uppermost portion of the gap opening, whereby the whole is joined and integrated (see FIG. 24).
The asphalt synthesizing agent 50 ′ and the attaching surface 51 are made of the same material, and the attaching surface attaching surface 51 is completely formed of the gap wall 111, the gap bottom portion 112, and the fillet 113 of the vertical elastic gap 11. Because it penetrates into the pores, it expands as the temperature rises, or even when the temperature rises and shrinks, the asphalt synthetic agent 50 'does not peel off from the sticking surface 51, and Since the elastic gap 11 and the secondary working gap 17 are all completely sealed by the asphalt synthetic agents 50 and 50 ′ and the waterproof tape 60, the gap wall 111, the gap bottom 112, and the corner of the vertical elastic gap 11 are formed. There is no gap between the meats 113 so as to be submerged, that is, water cannot enter the ground A, and fine aggregates in the ground A flow away to form the cavity A1. It becomes strange. Furthermore, since the sticking surface 51 covers the fillet 113, even when a heavy machine such as an airplane runs through the vertically extending and contracting gap 11, the crack 19 is not generated by the pressing gravity, Accidents caused by cracks on the engine of the airplane are prevented.
[0014]
As shown in FIG. 25, a procedure for processing the lateral expansion gap 13 in the runway surface layer 10 according to the present invention will be described below.
(1d) The surface of the horizontal expansion gap 13 is heated from above, and the surface of the gap 13 is rapidly dehydrated and dried to expand the pores.
(2d) Apply an appropriate amount of asphalt synthesizing agent 50 on the surface of the horizontal stretching gap 13 after the heating.
(3d) Further heating from above the asphalt synthetic agent 50 applied in the procedure of (2d), the inside of the pores 131 of the horizontal expansion gap 13, the gap bottom 132 and the fillet 133 and the artificial crack 12 The artificial cracks 12 are completely dissolved and penetrated therein, and the cracks of the artificial cracks 12 are sealed by filling to form a sticking surface 51.
(4d) A waterproof tape 60 is attached on the attachment surface 51.
(5d) A high-temperature asphalt synthetic agent 50 ′ is injected into the laterally stretchable gap 13 to reach the uppermost portion of the gap, whereby the whole is joined and integrated.
The procedure of the horizontal expansion / contraction gap 13 is the same as that of the vertical expansion / contraction gap 11, and similarly, the gap between the gap wall 131, the gap bottom 132, and the fillet 133 of the horizontal expansion / contraction gap 13 is also effective. Is completely absent and water does not penetrate, so that it is impossible for water to enter the ground A, thereby preventing the formation of a cavity A1 in fine aggregate in the ground A. Also, as described above, the generation of cracks 19 due to the traveling of heavy equipment such as an airplane is also prevented, thereby preventing the engine of the airplane from inhaling the cracks 19 and suffering damage such as an accident. Is done.
[0015]
As shown in FIGS. 15 and 16 and FIGS. 26 and 32, a procedure for processing a crack 14 'in the runway surface layer 10 according to the present invention will be described.
(1e) Cut out narrow gaps 141 (see FIG. 14) on the blocks 14 on both sides of the cracks 14 ′ of the runway surface layer 10, and cut the runway surface layer 10 between the gaps 141 to obtain an appropriate width. And a shallow groove 142 (see FIG. 15) having a depth equal to that of the first groove 142, and dust in the shallow groove 142 is removed.
(2e) By heating from above the shallow groove 142, the groove wall 141 'and the groove bottom 142' are dehydrated and dried to expand the pores (see FIG. 26).
(3e) An appropriate amount of asphalt synthetic agent 50 is applied to the surface of the groove wall 141 'on the shallow groove 142 and the surface of the groove bottom 142' after heating.
(4e) Further, the asphalt synthetic agent 50 after paving in the step (3e) is heated to dissolve in the pores 141 ′ of the shallow groove 142 and the pores of the groove bottom 142 ′ and in the surface crack 14 ′. (See FIG. 27) to seal the cracks of the surface cracks 14 ′ to form the first attachment surface 52.
(5e) A waterproof tape 60 is attached on the first attaching surface 52 (see FIG. 28).
(6e) The asphalt synthetic agent 50 is heated and applied on the waterproof tape 60 to form a second attaching surface 53 on the waterproof tape 60 (see FIG. 29).
(7e) A small base material 70 having a volume substantially equal to that of the shallow groove 142 is provided, and the four circumferential surfaces of the small base material 70 are heated to expand the pores on the surface. (See FIG. 30).
(8e) The asphalt synthetic agent 50 on the small base material 70 and the second attachment surface 53 of the shallow groove 142 are heated, and the small base material 70 is placed on the second attachment surface 53 on the shallow groove 142. And the small base material 70 is tightly coupled with the second attaching surface 53 on the shallow groove 142 (see FIG. 32).
Since the asphalt synthetic agent 50 on the small base material 70 and the asphalt synthetic agent 50 on the second attaching surface 53 are of the same material, they are melted and integrated, and the small base material 70 is After being occupied and joined, it does not expand or contract due to a change in temperature or the like after construction. That is, phenomena such as separation of the secondary working gap 21 and the filling material 20 which are problems with the known technology are prevented (see FIG. 18), and tires of a vehicle or an airplane running at high speed are prevented from being punctured. You.
[0016]
As shown in FIG. 19 and FIGS. 32 to 35, a construction procedure for re-paving the runway surface layer 10 according to the present invention will be described below.
(1f) The runway surface layer 10 having an appropriate thickness is shaved (see FIG. 19).
(2f) An appropriate amount of asphalt synthetic agent 50 is applied on the runway surface layer 10 'after the shaving (see FIG. 32).
(3f) The applied asphalt synthetic agent 50 is heated and completely dissolved and penetrated in all cracks (including the secondary construction gap 17 and the cracks 18) on the runway surface layer 10 ', and all the cracks The mouth is sealed to form an attachment surface 54 (see FIG. 32).
(4f) A new runway surface layer 10 'is formed by paving an asphalt mixture (AC) 30 having an appropriate thickness on the attachment surface 54 (see FIG. 34).
A waterproof tape 60 is further applied on the adhering surfaces 54 such as the vertical expansion gap 11, the artificial crack 12, the horizontal expansion gap 13, the secondary construction gap 17, and the crack 18 during the procedure of (3f). (See FIG. 35), an upward (vertical) force generated by the reaction to the load during take-off and landing or running of the airplane, or the expansion or contraction due to the weather causes the sticking surface 43 and the waterproof tape 60 to It is converted into a lateral (horizontal) force by the double barrier, so that the newly paved asphalt mixture (AC) 30 does not crack by reflection in the surface layer 10 ′, the adhesive surface 54 and the waterproof tape 60. Further enhances the waterproofing effect and completely prevents the water W from entering the ground A, thereby causing cracks, sinking, peeling, swelling, or cracks on the runway surface layer 10 '. There is no .
[0017]
In addition to the purpose of the present invention as a runway surface layer of an airfield, even when applied to a newly erected or already used bridge surface layer or road surface, the same effect as described above, The construction is simple and speedy, and effects such as prevention of cracks and launching due to secondary construction, and prevention of peeling, depression, swelling, and generation of cracks are obtained.
[0018]
【The invention's effect】
According to the present invention, it is possible to overcome severe conditions such as takeoff and landing of an airplane or other heavy equipment traveling, parking, and weather change, and to effectively treat a gap of a runway surface layer by a special material and construction method. As a result, the surface layer is prevented from peeling off and unevenness is formed on the surface, ensuring the safety of the aircraft, and at the same time preventing the generation of cracks and the penetration of moisture into the ground, the runway Have less fatigue and have a relatively long life.
[Brief description of the drawings]
FIG.
It is sectional drawing in a known runway.
FIG. 2
It is a figure (1) which shows the surface unit cross section in the runway paved in the airport.
FIG. 3
It is a figure (2) which shows the surface unit cross section in the runway paved in the airport.
FIG. 4
It is sectional drawing which shows a mode that the vertical expansion gap was cut in the runway surface layer.
FIG. 5
It is sectional drawing which shows a mode that the artificial crack was cut in the runway surface layer.
FIG. 6
It is sectional drawing which shows a mode that the horizontal expansion gap was cut in the runway surface layer.
FIG. 7
It is an overhead view which shows the mode which cut in several blocks of the runway surface layer.
FIG. 8
It is sectional drawing which shows a mode that waterproof processing was performed on the vertical expansion-contraction gap at the time of paving a runway newly at an airport.
FIG. 9
It is sectional drawing in BB in FIG.
FIG. 10
FIG. 4 is an enlarged view showing a state in which a vertically extending elastic gap and a filling material are separated from each other, and a gap for launching water is formed.
FIG. 11
FIG. 4 is an enlarged view showing a state in which a horizontal expansion gap and a filler material are separated from each other, and a gap for launching water is formed.
FIG.
It is sectional drawing which shows the mode that the vertical expansion-contraction gap in the runway surface layer was torn under the weight.
FIG. 13
FIG. 4 is an overhead view illustrating a state in which a crack has occurred on the upper surface of the block.
FIG. 14
It is a figure which shows a mode that the narrow gap was cut in both sides of the surface crack in FIG.
FIG.
It is sectional drawing in CC in FIG.
FIG.
FIG. 16 is a cross-sectional view illustrating a state where a filling material is filled in the shallow groove in FIG. 15.
FIG.
FIG. 17 is an enlarged view showing a state in which a secondary working gap is formed between a filling material and a shallow groove in FIG. 16.
FIG.
FIG. 18 is a cross-sectional view showing a state in which the filling material in FIG. 17 protrudes.
FIG.
It is sectional drawing which shows a mode that the runway surface layer of suitable thickness was shaved and removed.
FIG.
FIG. 3 is a cross-sectional view showing a state in which a runway surface layer having an appropriate thickness is shaved, an adhesive layer is sprayed, and a reinforcing material is applied.
FIG. 21
It is sectional drawing which shows a mode that the crack by reflection occurred on the surface layer of the new airfield runway after paving.
FIG.
It is sectional drawing which shows a mode that the sticking surface was formed on the vertical expansion-contraction surface.
FIG. 23
FIG. 23 is a cross-sectional view showing a state in which a waterproof tape is stuck on the sticking surface in FIG. 22.
FIG. 24
FIG. 24 is a cross-sectional view showing a state in which the vertically extending elastic gap in FIG. 23 is filled with an asphalt synthetic agent and sealed.
FIG. 25
It is sectional drawing which shows a mode that the asphalt synthetic agent was filled and sealed in the horizontal expansion gap.
FIG. 26
It is sectional drawing which shows the mode that the shallow groove was cut in on the surface crack of the block.
FIG. 27
FIG. 27 is a cross-sectional view showing a state where a first attaching surface is formed on a shallow groove in FIG. 26.
FIG. 28
It is sectional drawing which shows a mode that the waterproof tape was stuck on the 1st sticking surface in FIG.
FIG. 29
FIG. 29 is a cross-sectional view illustrating a state where a second attaching surface is formed on the waterproof tape in FIG. 28.
FIG. 30
It is sectional drawing which shows a mode that the asphalt synthetic agent was melt | dissolved and infiltrated into four circumferences of the small base material.
FIG. 31
FIG. 31 is a cross-sectional view showing a state where the small base material of FIG. 30 is inserted into a shallow groove in FIG. 29.
FIG. 32
It is sectional drawing which shows a mode that the asphalt synthetic agent was laid on the runway surface layer after shaving.
FIG. 33
FIG. 33 is a cross-sectional view showing a state in which the asphalt synthetic agent in FIG. 32 has sealed all cracks on the runway surface layer and has a sticking surface.
FIG. 34
FIG. 34 is a cross-sectional view showing a state in which one layer of asphalt concrete is laid on the sticking surface in FIG. 33 to form a new runway surface layer.
FIG. 35
FIG. 34 is a cross-sectional view showing a state in which a layer of asphalt concrete is laid after a waterproof tape is stuck on the stuck surfaces above all cracks in FIG. 33.
[Explanation of symbols]
10, 10 ', 30' Airfield runway surface layer 101 Adhesive layers 10A, 10B Surface layer unit 11 Vertically stretchable gaps 11 ', 13' Launch gaps 111, 131 Gap walls 112, 132 Gap bottoms 113, 133 Gap Top fillet 12 Artificial crack 13 Lateral stretching gap 14 Block 141 Thin gap 142 Shallow groove 14 ′ Surface crack 141 ′ Groove wall 142 ′ Groove bottom 15 PE rod 16 Gap filler 17, 21 Secondary construction gap 18 Natural crack 19 Fragment 20 Filling material 22 Gap 30 Asphalt concrete 31 Reflection gap 40 Reinforcement material 50, 50 'Asphalt synthetic agent 51, 54 Sticking surface 52 First sticking surface 53 Second sticking surface 60 Waterproof tape 70 Small base material A Ground A1 Cavity W Moisture

Claims (11)

In the processing method for gaps and cracks in the runway surface of the airport,
Procedure 1. Heat treatment is applied to the crack surface to be constructed, the crack surface is rapidly dehydrated to expand the pores,
Procedure 2. Apply an appropriate amount of asphalt synthesizing agent on the crack surface after heating,
Procedure 3. Further heating the applied asphalt synthesizing agent, the asphalt synthesizing agent completely dissolves and penetrates into the pores of the crack surface, completely closing the crack opening,
A method for treating and processing gaps and cracks in a runway surface of an airfield, comprising the steps described above. 2. The method according to claim 1, wherein a procedure such as cutting, shaving, polishing, and cleaning is appropriately performed before executing the procedure 1. When processing the vertical stretch gap of the runway surface of the airfield,
1c. Heating from the surface of the vertical stretching gap, rapidly dehydrating the surface of the vertical stretching gap to expand the pores,
2c. Apply an appropriate amount of asphalt synthetic agent on the surface of the vertically stretched gap after heating,
3c. Further, the procedure 2c. By heating from above the asphalt synthetic agent applied in step 2, the asphalt synthetic agent dissolves and penetrates into the wall of the vertical expansion and contraction gap and the pores at the bottom and top fillet in the secondary construction gap, Seals the opening of the time work gap, forms a sticking surface,
4c. Paste a waterproof tape on the sticking surface,
5c. Injecting the asphalt synthetic agent heated to a high temperature into the vertically extending and contracting gap up to the opening of the gap, sticking and bonding each other,
The method for treating and processing a gap or a crack in a surface of a runway of an airfield according to claim 1, comprising each of the above procedures. When processing the lateral expansion gap in the airfield runway surface,
1d. Heating from the surface of the horizontal stretching gap, rapidly dehydrating the surface of the vertical stretching gap to expand the pores,
2d. Applying an appropriate amount of asphalt synthetic agent on the surface of the horizontal stretch gap after heating,
3d. Further, the procedure 2d. By heating from above the asphalt synthesizing agent applied in the above, the asphalt synthesizing agent is dissolved and penetrated by the artificial cracks and the pores of the wall of the horizontal stretching gap and the bottom and the fillet portion of the upper fillet, and the artificial cracks Seals the opening of the gap and forms a sticking surface,
4d. Paste a waterproof tape on the sticking surface,
5d. Injecting the asphalt synthetic agent heated to a high temperature into the horizontally extending and contracting gap up to the opening of the gap, sticking and bonding each other,
The method for treating and processing a gap or a crack in a surface of a runway of an airfield according to claim 1, comprising each of the above procedures. The procedure for treating surface cracks in the airfield runway surface is:
1e. A narrow gap is provided on each of the blocks on both sides of the crack on the airfield runway surface, a surface layer between the two narrow gaps is cut, and a shallow groove having an appropriate width and depth is formed. Remove the debris inside,
2e. By heating from above the shallow groove, the groove wall and groove bottom are dehydrated and dried to expand the pores,
3e. Apply an appropriate amount of asphalt synthetic agent on the groove wall and groove bottom surface of the heated shallow groove,
4e. Further, the asphalt synthesizing agent is heated from above the asphalt synthesizing agent applied in the step 3e, and the asphalt synthesizing agent is dissolved and penetrated into the pores of the shallow groove wall, the pores at the bottom of the groove, and the surface cracks to crack the surface crack. Closes the mouth and forms the first sticking surface,
5e. Pasting a prevention tape on the sticking surface,
6e. Heating the asphalt synthetic agent and applying it on the waterproof tape, forming a second adhesive surface on the waterproof tape,
7e. A small base material having the same volume as the shallow groove is prepared, and the pores are expanded by heating the four peripheral surfaces of the small base material, and the asphalt synthetic agent is dissolved in the surface pores of the small base material. Let it penetrate,
8e. After heating the asphalt synthetic agent on the small base material and the second attachment surface of the shallow groove, the small base material is inserted into the second attachment surface of the shallow groove, and the small base material is Tightly bonded on the second sticking surface on the shallow groove,
The method for treating and processing a gap or a crack in a surface of a runway of an airfield according to claim 1, comprising each of the above procedures. The construction procedure for treating cracks on the airfield runway surface is as follows:
1e. A narrow gap is provided on each of the blocks on both sides of the crack on the airfield runway surface, a surface layer between the two narrow gaps is cut, and a shallow groove having an appropriate width and depth is formed. Remove the waste
2e. By heating from above the shallow groove, the groove wall and groove bottom are dehydrated and dried to expand the pores,
3e. Apply an appropriate amount of asphalt synthetic agent on the groove wall and groove bottom surface of the heated shallow groove,
4e. Further, the asphalt synthesizing agent is heated from above the asphalt synthesizing agent applied in the step 3e, and the asphalt synthesizing agent is dissolved and penetrated into the pores of the shallow groove wall, the pores at the bottom of the groove and the surface cracks, and the cracks of the surface crack Closes the mouth and forms the first sticking surface,
5e. Pasting a prevention tape on the sticking surface,
6e. Heating the asphalt synthetic agent and applying it on the waterproof tape, forming a second adhesive surface on the waterproof tape,
7e. A small base material having the same volume as the shallow groove is prepared, and the pores are expanded by heating the four peripheral surfaces of the small base material, and the asphalt synthetic agent is dissolved in the surface pores of the small base material. Let it penetrate,
8e. After heating the asphalt synthetic agent on the small base material and the second attachment surface of the shallow groove, the small base material is inserted into the second attachment surface of the shallow groove, and the small base material is Tightly bonded on the second sticking surface on the shallow groove,
3. The method according to claim 2, further comprising the steps of: performing a process on a gap or a crack in a runway surface of an airfield. Construction procedures when paving the airfield runway surface newly include:
1f. Shaving the runway surface of the airfield with an appropriate thickness,
2f. Apply an appropriate amount of asphalt synthetic agent on the runway surface after shaving,
3f. The applied asphalt synthesizing agent is heated from above, completely dissolving the asphalt synthesizing agent on the surface layer, and penetrating into pores on all crack surfaces on the surface layer, sealing all crack openings, Form the sticking surface,
4f. An asphalt synthetic agent (AC) having an appropriate thickness is applied on the application surface to form a pavement,
The method for treating and processing a gap or a crack in a surface of a runway of an airfield according to claim 1, comprising each of the above procedures. The construction procedure when paving the airfield runway surface newly,
1f. Shaving the runway surface of the airfield with an appropriate thickness,
2f. Apply an appropriate amount of asphalt synthetic agent on the runway surface after shaving,
3f. The applied asphalt synthesizing agent is heated from above, completely dissolving the asphalt synthesizing agent on the surface layer, and penetrating into pores on all crack surfaces on the surface layer, sealing all crack openings, Form the sticking surface,
4f. An asphalt synthetic agent (AC) having an appropriate thickness is applied on the application surface to form a pavement,
3. The method according to claim 2, further comprising the steps of: performing a process on a gap or a crack in a runway surface of an airfield. The procedure 3f. 8. The waterproof tape according to claim 7, wherein a waterproof tape is further applied on all the vertical and horizontal expansion gaps therein, as well as on the attachment surfaces of artificial cracks, secondary construction gaps, natural cracks, and the like. Processing method for gaps and cracks in the airfield runway surface. The procedure 3f. 9. The waterproof tape according to claim 8, wherein all the vertical and horizontal expansion gaps therein, as well as artificial cracks, secondary construction gaps, natural cracks, etc., are pasted on a sticking surface. Processing method for gaps and cracks in the airfield runway surface. The asphalt synthesizing agent is one in which straight asphalt and blown asphalt are adjusted at an appropriate ratio.
Soluble at high temperature (burning point 250 ° C), permeability (penetration into pores of base material), and weldability (enhancement of crack sealing and bonding with building material by sticking with waterproof tape), at room temperature 11. The method for treating and treating gaps and cracks in a runway surface of an airfield according to claim 1, wherein the method has elasticity (stable bonding of building materials paved on a surface layer) and waterproofness and corrosion resistance. .

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