KR20200024978A - Waterproof sheet of bridge deck and method constructing it on the bridge deck - Google Patents

Abstract

Water-soluble rubberized asphalt and high-adhesive rubberized asphalt are infiltrated, anchored, and bound to the upper and lower layers of PE compressed long-fiber non-woven fabric, and the water-soluble rubberized asphalt of the upper layer, as a composite waterproof sheet for a bridge deck extending and protruding from the PE compressed long-fiber non-woven fabric, functions as a medium attaching material with asphalt concrete and allows the integrated movement thereof. The infiltrating, anchoring, and binding thickness of the water-soluble rubberized asphalt is 65-75% of the thickness (t) of the PE compressed long-fiber non-woven fabric, and the infiltrating, anchoring, and binding thickness of the high-adhesive rubberized asphalt is 25-35% of the thickness (t) of the PE compressed long-fiber non-woven fabric. Therefore, the present invention prevents penetration of the PE compressed long-fiber non-woven fabric due to sharp rubble of asphalt concrete, and forms a composite waterproof sheet for a bridge deck having high rigidity and non-elasticity to minimize a length elongated by the impact force of a large vehicle, thereby preventing bending of the remaining length, preventing separation of a boundary surface, and enabling the integrated movement thereof.

Description

Composite sheet for bridge construction and waterproof method

The present invention relates to a crosslinked composite waterproof sheet and a method of crosslinked composite waterproofing using the same. More specifically, the water-soluble rubberized asphalt and the high-adhesive rubberized asphalt are respectively infiltrated and anchored on the upper and lower layers of the PE compressed long-fiber nonwoven fabric. As a cross-linked composite waterproof sheet that extends and protrudes from the PE-compressed long-fiber nonwoven fabric as it is bound, the water-soluble rubberized asphalt of the upper layer forms an integration behavior with the role of a mediating agent with ascone, but the penetration and anchorage of water-soluble rubberized asphalt The thickness is 65-75% of the thickness (t) of the PE crimped fiber nonwoven fabric, and the thickness of penetration and anchor binding of the high-adhesive rubberized asphalt is 25-35% so that the PE crimped fiber nonwoven fabric is produced by the sharp crushed stone of ascon. Not only is it prevented from penetrating, but a composite composite sheet with large stiffness and inelasticity is formed. Due to the minimization of the increased length, the bending of the residual length is prevented and at the same time, the separation of the boundary surface is prevented, and thus it is integrated.

Thus, the water-soluble rubberized asphalt and the high-adhesive rubberized asphalt are respectively penetrated and anchored to the upper and lower layers of the cross-linked composite waterproof sheet, thereby forming a double waterproof layer and being rigid and inelastic, resulting in a residual length due to impact load. It is a useful invention that has the advantage of minimizing and preventing imprinting by crushed stone.

Bridge bridge is the surface of slab concrete.

Cross-linked concrete is cracked due to physical and chemical deterioration.

Cracks are the culprit of rebar corrosion. The corroded rebar gradually expands in volume and leads to destruction of the concrete structure, thereby deteriorating the durability and safety of the structure. Bridge bridges are collapsed when rebar corrosion progresses, leading to large accidents.

The cause of the microcracks in the bridge can be attributed to repeated expansion and contraction due to temperature change. It is the repetition of temperature rise in summer and freeze-thawing in winter. In the case of bridges of continuous beam structure type, there is a minor moment section at the point, so the tensile force of the secondary moment section is the cause of the bridge crack. If calcium chloride in winter penetrates in a state where microcracks are generated in the bridge, reinforcing corrosion is further promoted.

As such, the repeated stretching or the tension of the sub-moment section due to seasonal temperature change is unavoidable, and thus, the bridge crack cannot be avoided.

Accordingly, cross-water resistance is a blocking means for preventing rain, acid rain, calcium chloride, etc. from penetrating into the microcracks.

 The blocking means closely attached to the bridge blocks the microcracks of the bridge, but there are elements that adversely affect the block in the block water unit. It is because it is a structure which consists of "a bridge | crosslinking → a blocking means → ascon laying."

Ascon has a lot of crushed stone. Ascending crushed stone penetrates the blocking means during the mechanical compaction of Ascon, and the waterproofing function is lost. The blocking means shall not be penetrated by sharp crushed stone. This is because when the blocking means, which is a waterproof layer, penetrates, the waterproof function is lost.

The blocking means has two upper and lower boundary surfaces.

The upper boundary is the interface between the top of the blocking means and the asphalt concrete.

The lower interface is the interface between the lower part of the blocking means and the concrete substrate.

First, the upper boundary surface is described.

Large vehicles with heavy weights and high speeds pass on the asphalt. The upper boundary and the surface of the blocking means should not be rolled up by the blocking means due to the speed of the vehicle and the weight of the vehicle. If the blocking means is dried at an acute angle, the blocking means is torn by repeated passages. The greater the elastic force of the blocking means, the greater the length that is pushed, and the longer the length is maintained without being restored. Even if the elastic force is large, because there is no restoring space of the blocking means, the extended length is bent at an acute angle. Due to the strong shock caused by the large braking and the rapid start of a large vehicle, it is pushed bigger and bent.

The related art of Patent No. 10-1032451 will be described.

In the prior art, the blocking means is an intersecting waterproof sheet 100 (see Fig. 1). The cross-sectional waterproof sheet structure is a structure in which a double waterproof layer 120 is formed above and below the center reinforcement 110.

The central reinforcement 110 is a "high elastic film". Self-adhesive double waterproof layer 120 is bonded to the top and bottom of the "high elastic film". Self-supporting double waterproof layer 120 is the upper and lower self-adhesive synthetic rubber waterproof layer 121, 123.

The crosslinked waterproof sheet 100 made of the self-adhesive synthetic rubber waterproof layers 121 and 123 adhered to the upper and lower portions of the "high elastic film" has a waterproof function by integrally behaving.

Examine the jungle phenomenon or separation phenomenon of the cross-sectional waterproof sheet (100).

The upper self-adhesive synthetic rubber waterproof layer 121 of the cross-sectional waterproof sheet 100 is bonded to the "high elastic film" while forming the interface-1 with Ascon. The lower self-adhesive synthetic rubber waterproof layer 123 of the crosslinked waterproof sheet 100 forms an interface-2 with the primer of the concrete base material and is bonded with the “high elastic film”.

The integral behavior of the crosslinked waterproof sheet 100 refers to the behavior without being pushed or separated at the interface-1, -2. This is because the upper self-adhesive synthetic rubber waterproof layer 121 should not be pushed or separated from the interface-1 between the asphalt concrete and the upper self-adhesive synthetic rubber waterproof layer 121, but also the upper self-adhesive synthetic rubber waterproof layer should not be separated or separated. It also means that it should not be pushed or separated between 121 and "highly elastic film". In other words, at least the interface between the ascon and the upper self-adhesive synthetic rubber waterproofing layer 121, and the self-adhesive synthetic rubber waterproofing layer 121 and the "high elastic film" should be completely integrated.

However, even if the interface between the interface -1 is a complete unity, the impact tensile force transmitted to the upper self-adhesive synthetic rubber waterproofing layer 121 is transmitted to the "high elastic film" again, so that the upper self-adhesive synthetic rubber waterproofing layer 121 and the "high elastic film" are provided. The adhesive force of is the structure that must bear this tensile force. "High elasticity" easily stretches even with small tensile forces. The extended length remains and accumulates at the end of the braking distance since there is no restoration space. As the cumulative length is bent, the “high elastic film” is torn and there is a problem that the waterproof function is lost.

In addition, the "high elastic film" of the prior art is not a material strong enough not to be penetrated by sharp crushed stone because of its thin thickness. This does not mean that the thickness of the "highly elastic film" can be increased. This is even more so since the crosslinked waterproof sheets are produced in rolls. Self-adhesive synthetic rubber waterproof layer 121 is also not strong enough to protect the sharpness of the crushed stone crushed asphalt. Since the roll is made, its thickness does not exceed 2-3 mm.

In addition, the prior art is a configuration in which the upper and lower self-adhesive synthetic rubber waterproof layers 121 and 123 are bonded to the thermoplastic polyurethane film.

The thermoplastic polyurethane film has a smooth surface. The adhesive force with the film of the self-adhesive synthetic rubber waterproof layer 121 is pushed or separated against the strong impact applied due to the sudden stop and start of the large vehicle.

Next, the lower boundary plane (boundary plane-2) will be described.

The lower boundary surface is a contact portion between the lower self-supporting synthetic rubber waterproof layer 123 of the crosslinked waterproof sheet 100 and the concrete base material. As long as the thermoplastic polyurethane film of the crosslinked waterproof sheet 100 is not torn while the upper boundary surface (boundary plane-1) is not separated, penetration of the concrete base material into the microcracks is blocked.

Thus, the bridge structure is a simple structure consisting of "ascon → bridge waterproof sheet → concrete base material". Because of the simple cross-linking structure, the difference is usually only in the characteristics of the "cross-linked waterproof sheet". The present invention is also an invention made within such a framework.

⒜ The present invention is a PE composite fiber nonwoven fabric, and a water-soluble rubberized asphalt on the upper portion, and a high adhesive rubberized asphalt on the lower portion, the cross-linked composite waterproof sheet respectively extended and protruded from the PE compressed fiber nonwoven fabric As a result, the water-soluble rubberized asphalt anchored and bonded to PE crimped nonwoven fabric is contacted with ascon to form interface-1, and the high-tensioned rubberized asphalt anchored and bound to PE crimped fiber nonwoven fabric is bonded to primer of concrete base material In addition to achieving -2, the composite composite sheet with large stiffness and inelasticity is formed to minimize the increased length due to the impact force of large vehicles, which prevents the remaining length from being broken and at the same time, it is not separated by integrating boundary-1 and -2. The purpose is to make the hybrid composite waterproof sheet behave in unison.

침투 In addition, the penetration and anchoring thickness of water-soluble rubberized asphalt to PE compressed long-fiber nonwoven fabric having a weight of 230g-270g / m2 and a thickness (t) of 0.47mm-0.5mm (t) 65% to 75% of the high adhesion rubberized asphalt penetration and anchoring thickness of the PE compressed long fiber nonwoven fabric by 25 to 35% of the thickness (t) of the PE compressed long fiber nonwoven Has a different purpose in preventing penetration,

In addition, it is another object of integrating the adhesion between the water-soluble rubberized asphalt which is penetrated and anchored by the PE compressed fiber nonwoven fabric and the asphalt concrete.

Referring to the configuration of the composite composite sheet of the present invention is as follows.

The water-soluble rubberized asphalt (10) and the highly adhesive rubberized asphalt (20) is made of a cross-linked composite waterproof sheet (100) in which the upper and lower layers of PE compressed long-fiber nonwoven fabric (30) are respectively penetrated and anchored. PE long fiber raw material nonwoven fabric having 230g-270g / m2 and thickness of 10.0-20.0mm is pressed and processed to be 0.47mm-0.5mm thick (t) PE compressed long fiber nonwoven fabric 30, and the PE crimped The upper layer of the thickness t of the long fiber nonwoven fabric 30 is infiltrated and anchored by the water-soluble rubberized asphalt 14 attached to the ascon 50, and the lower layer of the thickness t is the high adhesive rubberized material. Asphalt 28 penetrates and anchors, while water-soluble rubberized asphalt 14 and high-adhesive rubberized asphalt 28 penetrated and anchored at the upper and lower thicknesses t are each PE compressed long-fiber nonwoven fabric 30. The protruding thickness of the protruding water-soluble rubberized asphalt 18 should be extended and protruded. (30) It is 3.5 to 4.3 times the thickness, and the protrusion thickness of the high-adhesive rubberized asphalt asphalt 24 is a cross-sectional composite waterproof sheet, characterized in that 4.0 to 4.6 times the thickness of the compressed long-fiber nonwoven fabric 30 (see Fig. 2). .

Here,

The thickness of the upper layer of the penetration and anchor anchoring of the water-soluble rubberized asphalt 14 is 65 to 75% of the thickness t of the PE crimped nonwoven fabric 30, and the penetration and anchor of the highly adhesive rubberized asphalt 28 is The thickness of the bottom layer of the binder is a cross-linked composite waterproof sheet, characterized in that 25 to 35% of the thickness (t) of the PE crimped nonwoven fabric 30.

Also, as shown in FIG. 2, the thickness t of the PE-compressed long-fiber nonwoven fabric 30, and the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 penetrated and anchored in the upper and lower layers, respectively, are PE-pressed. It is a cross-linking composite waterproof sheet characterized in that the total length of the vertical extension and protrusion from the long fiber nonwoven fabric 30 is 4.0 to 5.0 mm.

In addition, it is a cross-linked composite waterproof sheet, characterized in that the silica sand 4 to 5 is mixed in the protruding water-soluble rubberized asphalt (18) extended and protruded above the PE compressed long-fiber nonwoven fabric (30).

The cross-linked composite waterproof sheet 100 of the present invention has a structure in which the water-soluble rubberized asphalt 14 is penetrated at the upper portion of the PE compressed long-fiber nonwoven fabric 30, and the high adhesion rubberized asphalt 28 is penetrated and anchored at the lower portion thereof.

65 to 75% of the thickness (t) of the PE compressed long-fiber nonwoven fabric 30 is water-soluble rubberized asphalt (14), the remaining thickness (t) 25 to 35% of the high adhesive rubberized asphalt (28) is infiltrated Anchor is attached. The characteristics of this are summarized below.

First, the PE crimped fiber nonwoven fabric 30 penetrates and anchors the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 at the thickness ratio as described above to become an inelastic material, which is PE crimped due to the impact force of a large vehicle. The long residual length of the long fiber nonwoven fabric 30 is minimized to prevent its bending.

For example, it is a case where a large vehicle is suddenly braked on the assumption that the interfaces 1 and -2 are completely integrated. At this time, the impact force is applied to the asphalt concrete sheet 100 with a strong tensile force with rapid braking of the wheel of a large vehicle. The water-soluble rubberized asphalt 14 and the highly adhesive rubberized asphalt 28 are infiltrated and anchored, and thus the cross-linked composite waterproof sheet 100 becomes an inelastic material. In this state, the cross-linked composite waterproof sheet 100 with respect to the impact tensile strength There is an advantage that the bending is prevented by minimizing the increase and the residual length. If the cross-linked composite waterproof sheet 100 is not bent because the waterproof function is maintained as it is large waterproof.

Second, the water-soluble rubberized asphalt 14 is penetrated and anchored at the upper portion of the PE compressed long-fiber nonwoven fabric 30, and the water-resistant rubberized asphalt 28 is penetrated and anchored to form a waterproof layer and at the same time becomes inelastic as opposed to elastic. Due to the impact force (including dynamic load) of the vehicle, the increased residual length of the PE crimped nonwoven fabric 30 is minimized, thereby preventing its bending, thereby increasing durability of the waterproof function.

Third, the projecting water-soluble rubberized asphalt 18 anchored and protruded on the upper portion of the PE-compressed long-fiber nonwoven fabric 30 acts as a binding medium with the ascon 50, thereby integrating the interface-1.

Fourth, the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 penetrate and anchor the upper and lower portions of the PE crimped fiber nonwoven fabric 30 so that the cross-linked composite waterproof sheet 100 not only behaves integrally but also the upper portion thereof. As the protruding water-soluble rubberized asphalt 18 is integrated with the ascon 50, it is characterized in that it is integrated with the ascon 50.

Fifth, the highly tacky rubberized asphalt 20 of the interface-2 has a characteristic that its tacky fluidity conforms to the behavior of the crosslinked composite waterproof sheet 100.

On the other hand, as shown in Figure 2 to penetrate and anchor the high adhesive rubberized asphalt 28 to the lower portion of the PE compressed long-fiber nonwoven fabric 100, and to penetrate and anchor the water-soluble rubberized asphalt 14 to the remaining upper portion It is preferable.

The thickness of the upper layer of the penetration and anchor anchoring of the water-soluble rubberized asphalt 14 is 65 to 75% of the thickness t of the PE-compressed long-fiber nonwoven fabric 30, and the penetration of the highly adhesive rubberized asphalt 28 The thickness of the lower layer of anchor binding is preferably 25 to 35% of the thickness t of the PE crimped nonwoven fabric 30. Since the impact load of a large vehicle is directly at the interface 1 with the asphalt concrete 50, that is, the water-soluble rubberized asphalt of the upper layer, the penetration and anchor binding thickness of the upper layer is more than twice the penetration and anchor binding thickness of the lower layer. This is because of this great thing.

The successive protrusion thicknesses of the projecting water-soluble rubberized asphalt 18 and the projected high-adhesive rubberized asphalt 24 which penetrate and anchor the PE compressed long-fiber nonwoven fabric 30 are preferably 1.8 to 2.4 mm. The thickness (t) of the PE crimped fiber nonwoven fabric, and the water-soluble rubberized asphalt 14 and the highly tacky rubberized asphalt 28 penetrated and anchored in the upper and lower layers respectively extend and protrude from the PE crimped fiber nonwoven fabric 30, respectively. It is preferable that the sum total of thickness is 4.0-5.0 mm. This is because the roll fabrication of the crosslinked composite waterproof sheet 100 is advantageous for the integration of the interface planes 1 and -2.

In addition, it is preferable that a coating film in which silica sand 4 to 5 is mixed is formed on the water-soluble rubberized asphalt 18 protruding upward from the PE crimped fiber nonwoven fabric 30. In order to enhance the adhesion between the ascon 50 and the PE crimped fiber 30.

As such, the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 are respectively penetrated and anchored to the upper and lower layers of the cross-linked composite waterproof sheet 100 to form a double waterproof layer as well as a rigid and inelastic material. This minimizes the residual length due to impact load (including dynamic load) and has the advantage of being prevented by crushed stone.

⒜ The present invention is a cross-linked composite waterproof sheet which extends and protrudes from a PE compressed fiber nonwoven fabric, respectively, while the water-soluble rubberized asphalt and the high-adhesive rubberized asphalt are infiltrated and anchored to the upper and lower layers of the PE compressed fiber nonwoven fabric, respectively. The water-soluble rubberized asphalt of the product forms the unified behavior with the role of mediating agent with ascone, but the penetration and anchoring thickness of the water-soluble rubberized asphalt is 65-75% of the thickness (t) of the PE compressed fiber nonwoven fabric. The thickness of the penetration of the adhesive rubberized asphalt and anchor anchorage is 25 to 35%, which prevents the penetration of PE-compressed long-fiber nonwoven fabric by the sharp crushed stone of ascon, as well as the formation of a crosslinked composite waterproof sheet having great rigidity and inelasticity. Increased length due to impact force (including dynamic load) of large vehicles is minimized to prevent bending of residual length and separation of interface Has the effect that any behavior while,

수용성 In addition, the water-soluble rubberized asphalt and the high-adhesive rubberized asphalt are respectively penetrated and anchored to the upper and lower layers of the cross-linked composite waterproof sheet, thereby forming a double waterproof layer and being stiff and large inelastic. This is a useful invention having the effect of preventing the imprinting by the crushed stone while minimizing the residual length.

1 is a cross-sectional view of a cross-sectional waterproof sheet of the prior art showing a state in which the upper and lower double rubber waterproof layer 120 is formed around the center reinforcement 110 of the high elastic film.
Fig. 2 is a cross-sectional view of the cross-linked composite waterproof sheet of the present invention showing a state in which the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 are infiltrated and anchored, respectively, on the upper and lower portions of the PE-compressed long-fiber nonwoven fabric (30).
3 is a cross-sectional view of the composite composite sheet of the present invention showing a state in which the cross composite composite sheet of the present invention is installed on the bridge and the ascon is installed thereon;
4 is a cross-sectional view of another embodiment in which the upper penetration and anchor of the cross-linked composite waterproof sheet of the present invention is carried out on-site, and an ascon is installed thereon.

Referring to the configuration of the composite composite waterproof construction method using a composite composite sheet of the present invention as follows.

In the waterproof construction method in which the primer 60 is applied to the bridge 70 as shown in Figure 3, and the waterproof sheet and the asphalt concrete are sequentially installed thereon.

(B) pressing and processing a PE long fiber raw material nonwoven fabric having a weight of 230g-270g / m2 and having a thickness of 10.0-20.0mm to form a PE crimped fiber nonwoven fabric 30 having a thickness of 0.47mm-0.5mm (t) ;

상부 the upper layer of the thickness (t) of the PE-compressed long-fiber nonwoven fabric 30 is infiltrated and anchored with the water-soluble rubberized asphalt (14) attached to the ascon (50), and the lower layer of the thickness (t) is The high adhesion rubberized asphalt 28 penetrates and anchors, while the water-soluble rubberized asphalt 18 and the protruding high-adhesive rubberized asphalt 24 infiltrated and anchored in the upper and lower thickness t are cross-linked and waterproof. The sheet 100 is formed;

이 peeling the release paper of the protruding high-adhesive rubberized asphalt 24 from the cross-linked composite waterproof sheet 100 of step ⒞ above, and attaching it to the primer layer 60 applied to the bridge 70 to form the interface surface-2, At this time, the step of installing on the bridge surface 70 so that the projecting water-soluble rubberized asphalt (18) of the cross-linked composite waterproof sheet (100) faces upward;

경계 forming interface 1 on the projecting water-soluble rubberized asphalt 18 of the cross-linked composite waterproof sheet 100 of step ⒞ to form the interface-1; It is a bridge construction method.

Here,

Penetration and anchoring of the water-soluble rubberized asphalt 14 in the step 이고 is 65 to 75% of the thickness t of the PE compressed long-fiber nonwoven fabric 30, and penetration and anchoring of the high-adhesive rubberized asphalt 28 Is a step of 25 to 35% of the thickness (t) of the PE crimped nonwoven fabric 30; the composite composite waterproof method using a cross-linked composite sheet characterized in that it comprises a.

In addition, the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 24 protruding from the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 infiltrated and anchored at the upper and lower thickness t in the step (i). The step of projecting thickness of 1.8 ~ 2.4mm; Composite composite waterproofing method using a composite composite sheet, characterized in that it comprises a.

not only. Cross-linking composite waterproof sheet comprising a; comprising the step of mixing silica sand No. 4 to No. 5 in the protruding water-soluble rubberized asphalt (18) extended and protruded to the PE compressed long-fiber nonwoven fabric 30 in the step (⒝) This is a composite cross-section waterproofing method.

On the other hand, the primer 60 is applied to the bridge 70 as shown in Figure 4, in the waterproof construction method in which the waterproof sheet and ascon are sequentially installed thereon

(B) pressing and processing a PE long fiber raw material nonwoven fabric having a weight of 230g-270g / m2 and having a thickness of 10.0-20.0mm to form a PE crimped fiber nonwoven fabric 30 having a thickness of 0.47mm-0.5mm (t) ;

PE the thickness t of the PE-compressed long-fiber nonwoven fabric 30 is divided into upper and lower layers, the upper layer of which is not yet coated with water-soluble rubberized asphalt 14, and the lower layer of high-adhesive rubberized asphalt 28 The protruding high-tension rubberized asphalt 24 protruded and extended to the lower portion thereof while the infiltration and anchoring are formed;

이 peeling the release paper of the protruding high-adhesive rubberized asphalt 24 from the cross-linked composite waterproof sheet 100 of step ⒞ above, and attaching it to the primer layer 60 applied to the bridge 70 to form the interface surface-2, In this state, applying, penetrating, and anchoring the water-soluble rubberized asphalt 14 to the upper layer of the PE-compressed long-fiber nonwoven fabric 30, wherein a protruding water-soluble rubberized asphalt 18 protruding and extending thereon is formed;

경계 forming interface 1 on the projecting water-soluble rubberized asphalt 18 of the cross-linked composite waterproof sheet 100 of step ⒞ to form the interface-1; It is a bridge construction method.

Here,

Penetration and anchoring of the high-adhesive rubberized asphalt 28 in the step (은) is 25 to 35% of the thickness (t) of the PE compressed long-fiber nonwoven fabric (30), the step of the water-soluble rubberized asphalt (14) Penetration and anchor anchoring is a hybrid composite construction method using a cross-linked composite waterproof sheet, characterized in that it comprises a; step of 65 to 75% of the thickness (t) of the PE crimped nonwoven fabric 30.

 Release paper is attached to the protruding high-adhesive rubberized asphalt 24, and silica sand 4 to 5 are mixed to the protruded water-soluble rubberized asphalt 18 to prevent adhesion to each other when winding onto a roll. The size of silica sand 5 is 0.4-0.5mm.

Thus, the water-soluble rubberized asphalt (14) and the highly adhesive rubberized asphalt (28) penetrate and anchor each of the upper and lower layers of the cross-linked composite waterproof sheet to form a double waterproof layer as well as a rigid and inelastic impact. Due to the load, the residual length is minimized, and there is an advantage of being prevented by the crushed stone.

100; Bridge Composite Waterproof Sheet (100)
10; Water-soluble rubberized asphalt (10), 14; Anchor water soluble rubberized asphalt (14), 18; Protrusion water-soluble rubberized asphalt (18),
20; High adhesive rubberized asphalt (20), 24; Protruding high adhesive rubberized asphalt 24, 28; Anchor high adhesive rubberized asphalt (28),
30; PE Crimped Nonwoven Fabric (30)
50; Ascon (50)
60; Primer (60)
70; Bridge (70)

Claims (10)

The water-soluble rubberized asphalt (10) and the highly adhesive rubberized asphalt (20) is made of a cross-linked composite waterproof sheet (100) in which the upper and lower layers of PE compressed long-fiber nonwoven fabric (30) are respectively penetrated and anchored. PE long fiber raw material nonwoven fabric having 230g-270g / m2 and thickness of 10.0-20.0mm is pressed and processed to be 0.47mm-0.5mm thick (t) PE compressed long fiber nonwoven fabric 30, and the PE crimped The upper layer of the thickness t of the long fiber nonwoven fabric 30 is infiltrated and anchored by the water-soluble rubberized asphalt 14 attached to the ascon 50, and the lower layer of the thickness t is the high adhesive rubberized material. Asphalt 28 penetrates and anchors, while water-soluble rubberized asphalt 14 and high-adhesive rubberized asphalt 28 penetrated and anchored at the upper and lower thicknesses t are each PE compressed long-fiber nonwoven fabric 30. The protruding thickness of the protruding water-soluble rubberized asphalt 18 should be extended and protruded. 30 projected thickness of 3.5 ~ 4.3 times, and projected adhesive rubberized asphalt 24 in the thickness of the composite bridge deck, characterized in that 4.0 ~ 4.6 times of the thickness compression long-fiber non-woven fabric 30, a waterproof sheet The method of claim 1
The thickness of the upper layer of the penetration and anchor anchoring of the water-soluble rubberized asphalt 14 is 65 to 75% of the thickness t of the PE crimped nonwoven fabric 30, and the penetration and anchor of the highly adhesive rubberized asphalt 28 is The thickness of the lower layer of the binder is a composite composite sheet, characterized in that 25 to 35% of the thickness (t) of the PE crimped nonwoven fabric 30 The method according to claim 1 or 2
The thickness t of the PE crimped fiber nonwoven fabric 30, and the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 penetrated and anchored in the upper and lower layers, respectively, from the PE crimped fiber nonwoven fabric 30, respectively. Cross-section composite waterproof sheet, characterized in that the sum of the thicknesses of the upper and lower extension and protrusion is 4.0 to 5.0 mm The method of claim 1 or 3
Cross-linked composite waterproof sheet, characterized in that the silica sand 4 to 5 is mixed in the protruded water-soluble rubberized asphalt (18) extended and protruded to the PE compressed long-fiber nonwoven fabric 30 In the waterproof construction method in which the primer 60 is applied to the bridge 70, and the waterproof sheet and the asphalt concrete are sequentially installed thereon.
(B) pressing and processing a PE long fiber raw material nonwoven fabric having a weight of 230g-270g / m2 and a thickness of 10.0-20.0mm to form a PE crimped fiber nonwoven fabric 30 having a thickness of 0.47mm-0.5mm (t) ;
상부 the upper layer of the thickness (t) of the PE-compressed long-fiber nonwoven fabric 30 is infiltrated and anchored with the water-soluble rubberized asphalt (14) attached to the ascon (50), and the lower layer of the thickness (t) is The high adhesion rubberized asphalt 28 is penetrated and anchored, while the water-soluble rubberized asphalt 18 and the protruding high-adhesive rubberized asphalt 24 infiltrated and anchored in the upper and lower thicknesses t are water resistant to cross-linking and compounding. The sheet 100 is formed;
이 release the release paper of the protruding high-adhesive rubberized asphalt 24 from the cross-linked composite waterproof sheet 100 of step, above, and attaches it to the primer layer 60 applied to the cross-section 70 to form the interface surface-2, At this time, the step of installing on the bridge surface 70 so that the projecting water-soluble rubberized asphalt 18 of the cross-linked composite waterproof sheet 100 faces upward;
경계 forming interface 1 on the projecting water-soluble rubberized asphalt 18 of the cross-linked composite waterproof sheet 100 of step iii, and forming interface-1; Bridge construction waterproof method The method of claim 5
Penetration and anchoring of the water-soluble rubberized asphalt 14 in the step 이고 is 65 to 75% of the thickness t of the PE compressed long-fiber nonwoven fabric 30, and penetration and anchoring of the high-adhesive rubberized asphalt 28 Interfacial composite waterproof construction method using a composite composite sheet, characterized in that it comprises a; step of 25 to 35% of the thickness (t) of the PE crimped nonwoven fabric 30 The method according to claim 5 or 6
From the water-soluble rubberized asphalt 14 and the high-adhesive rubberized asphalt 28 penetrated and anchored at the upper and lower thicknesses t in the step 의, the water-soluble rubberized asphalt 18 and the high-adhesive rubberized asphalt 24 protruded. Intersection composite waterproofing method using a composite composite sheet characterized in that it comprises a; step of projecting thickness 1.8 ~ 2.4mm; The method of claim 5
Cross-linking composite waterproof sheet comprising a; comprising the step of mixing silica sand No. 4 to No. 5 in the protruding water-soluble rubberized asphalt (18) extended and protruded to the PE compressed long-fiber nonwoven fabric 30 in the step (⒝) Bridge construction waterproof method using In the waterproof construction method in which the primer 60 is applied to the bridge 70, and the waterproof sheet and the asphalt concrete are sequentially installed thereon.
(B) pressing and processing a PE long fiber raw material nonwoven fabric having a weight of 230g-270g / m2 and a thickness of 10.0-20.0mm to form a PE crimped fiber nonwoven fabric 30 having a thickness of 0.47mm-0.5mm (t) ;
PE the thickness t of the PE-compressed long-fiber nonwoven fabric 30 is divided into upper and lower layers, the upper layer of which is not yet coated with water-soluble rubberized asphalt 14, and the lower layer of high-adhesive rubberized asphalt 28 The protruding high-tension rubberized asphalt 24 protruded and extended to the lower portion thereof while the infiltration and anchoring are formed;
이 peeling the release paper of the protruding high-adhesive rubberized asphalt 24 from the cross-linked composite waterproof sheet 100 of step ⒞ above, and attaching it to the primer layer 60 applied to the bridge 70 to form the interface surface-2, In this state, applying, penetrating, and anchoring the water-soluble rubberized asphalt 14 to the upper layer of the PE-compressed long-fiber nonwoven fabric 30, wherein a protruding water-soluble rubberized asphalt 18 protruding and extending thereon is formed;
경계 forming interface 1 on the projecting water-soluble rubberized asphalt 18 of the cross-linked composite waterproof sheet 100 of step ⒞ to form the interface-1; Bridge construction waterproof method The method of claim 9
Penetration and anchoring of the high-adhesive rubberized asphalt 28 in the step (은) is 25 to 35% of the thickness (t) of the PE compressed long-fiber nonwoven fabric (30), and the water-soluble rubberized asphalt (14) Penetration and anchor anchoring is a step of 65 to 75% of the thickness (t) of the PE crimped nonwoven fabric 30;

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