JP2000290930A - Method and device for applying waterproof sheet to concrete surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform waterproofing work just after placing concrete by providing a work device for press-fitting the waterproof sheet to a concrete surface while applying proper tensile force to the waterproof sheet, a sheet carriage for loading the waterproof sheet to be supplied to the work device, and a work carriage for loading the work device so as to be liftable and capable of moving the sheet carriage. SOLUTION: At execution work time, first of all, while moving a work carriage 1 until a work device 3 comes up to the just above side of an execution work position, a sheet carriage 2 is moved and stopped so that a waterproof sheet 11 loaded on the sheet carriage 2 together with an exclusive pallet comes just under the work device 3. Next, while gripping both end parts of the waterproof sheet 11 by clamps 5, 6, proper tensile force is applied to the waterproof sheet 11, and mold releasing paper sticking to an under surface of the waterproof sheet is wound by a mold releasing paper winder 7 so that the waterproof sheet 11 is press-fitted to a concrete surface by a roller 8. Afterwards, the work device 3 is moved upward, and a procedure hitherto is repeated. Thus, waterproof execution work can be performed in an unhardened situation just after placing concrete, and can be particularly effectively applied to a floorboard upper surface thickness increasing construction method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for applying a waterproof sheet to a concrete surface in which a waterproof sheet such as a sheet-type floor slab waterproofing material is pressed onto a concrete surface immediately after casting.

[0002]

2. Description of the Related Art Conventionally, it has been a common practice to apply waterproofing to a concrete surface after confirming that the amount of water on the surface of the concrete after setting is reduced to a predetermined value or less after hardening.

[0003] However, there is a sheet-type floor slab waterproofing material characterized in that it can be applied to a concrete surface immediately after casting. In such a waterproofing sheet, the concrete is hardened, and the waterproofing is performed only when the surface water amount falls below a certain value. It has been found that it has many advantages compared to conventional concrete floor slab waterproofing materials that allow for construction.

On the other hand, in the conventional method, the hardened concrete floor slab itself can be used as a workbench for floor slab waterproofing, that is, a working scaffold for working the work or a working table serving as a work space. The waterproof sheet made of the sheet-type floor slab waterproofing material has a drawback that a normal work table cannot be secured because it can be constructed on a soft concrete surface immediately after casting concrete.

That is, in the case of the sheet type floor slab waterproofing material, since the concrete on the construction surface has not been hardened yet, the construction surface cannot be used as a work table. Since the construction width changes or the height of the roadside structure adjacent to the construction position changes, a construction system that can cope with such a change is required.

[0006]

SUMMARY OF THE INVENTION The present invention makes it possible to perform waterproofing work in a situation where the concrete has not yet been hardened immediately after casting concrete, and can be applied to a method of increasing the thickness of a floor slab. The present invention provides a method and an apparatus for installing a waterproof sheet on a concrete surface, which can be expected to reduce the work time, save labor in concrete work, and improve the quality of concrete.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a work cart having a working device and a seat cart is moved so that the work device is located on a waterproof sheet installation position, and the tarpaulin is positioned immediately below the work device. Move the sheet cart to stop it together, stretch the waterproof sheet, peel off the release paper, press the waterproof sheet on the construction surface, move the working device upward, and repeat this operation It consists of waterproofing construction method on concrete surface, and more specifically, while loading work equipment, and moving the work trolley which can move the seat trolley, while moving the work equipment just above the construction position, Move the seat trolley so that the waterproof sheet loaded on the seat trolley comes to the position directly below the work equipment, stop together,
Peel off one end of the release sheet of the uppermost waterproof sheet appropriately and fix it to the release paper winder, then pass the waterproof sheet over the release paper winder and grab it with one clamp to remove the waterproof sheet. The other end is gripped by the other clamp, the roller is lowered to a predetermined position on the upper surface of the sheet, and the seat trolley is moved out of the installation position in a state where the waterproof sheet is suspended by the clamps at both ends, and the working device is moved. By lowering to the concrete tarpaulin construction surface and moving the working device from one end to the other end, the release paper is taken up by the release paper winder, and the waterproof sheet is pressed against the construction surface by moving the roller. Opening the clamps at both ends, raising the working equipment, moving to the next construction position, and repeating the above procedure, a method for constructing a waterproof sheet on a concrete surface.

An apparatus to which the method for applying a waterproof sheet according to the present invention is applied is a working device for applying a waterproof sheet to a concrete waterproof sheet application surface while applying appropriate tension to both ends of the waterproof sheet, and a working device. Seat cart loaded with a waterproof sheet to be supplied to a vehicle, and a work cart equipped with a power unit and a self-propelled device, loaded with a working device so as to be able to move up and down, and capable of moving the seat cart. Consisting of a construction device, the present invention further comprises a waterproof sheet construction device provided with a clamp that applies an appropriate tension while grasping both ends of the waterproof sheet to the above working device, and the waterproof sheet construction device of the present invention further comprises: Whether the work equipment described above is provided with a roller that presses the waterproof sheet to the waterproof sheet installation surface while applying tension while grasping both ends of the waterproof sheet. It made.

[0009] Further, the device of the present invention comprises:
The apparatus of the present invention is capable of reloading a predetermined amount of waterproof sheets together with a special pallet on the above-mentioned sheet carriage, which is provided with a release paper winding machine that winds the release paper adhered to the lower surface of the waterproof sheet. To be loaded on

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of a method for applying a waterproof sheet to a concrete surface and a waterproof sheet applying apparatus to which the method is applied according to the present invention will be described. FIG. 2 is a front sectional view taken along the line AA of FIG. 1 and FIG. 3 is a side view of FIG.

[0011] The waterproofing sheet construction apparatus comprises:
The work vehicle 1 is provided with a power device such as a generator and a compressor, and a self-propelled device capable of moving on a rail 12 by wheels 13. The device 3 is loaded so as to be able to move up and down, and the seat cart 2 can be moved by being pulled or pushed.

The seat cart 2 has, for example, 300 to 50
The work carriage 1 can move the position so that the waterproof sheet 11 for 0 m ² is loaded and the waterproof sheet 11 is supplied to the working device 3 as the work progresses.

Further, since the working device 3 functions so as to press the waterproof sheet 11 on the waterproof sheet application surface while giving appropriate tension to both ends of the waterproof sheet 11 supplied from the seat cart 2, the waterproof device is waterproof. A clamp 5 at one end for grasping both ends of the sheet 11 and a clamp 6 at the other end are provided, so that the clamps 5 and 6 can apply appropriate tension to the waterproof sheet 11 while grasping the waterproof sheet 11. It has become.

Further, the working device 3 is provided with a roller 8 for gripping both ends by the clamps 5 and 6 and pressing the waterproof sheet 11 in a tensioned state against the waterproof sheet application surface. Further, a release paper winder for winding release paper adhered to the lower surface of the waterproof sheet 11 supplied to the working device 3 is provided.

A waterproof sheet 11 cut to a predetermined size at a factory is placed on the seat cart 2 by, for example, 30 pieces.
The pallet 4 is loaded on the dedicated pallet 4 every minute from 0 to 500 m ² , carried into the construction site, and reloadable together with the pallet 4 by a crane or the like.

Next, the procedure for applying the waterproof sheet 11 to the concrete surface immediately after casting using the above waterproof sheet applying apparatus will be described. First, as shown in FIG. 3 is moved right above the first construction position, and at the same time, the seat trolley 2 is moved so that the waterproof sheet 11 loaded with the exclusive pallet 4 on the sheet trolley 2 comes to a position directly below the working device 3. Stop. Next, in this state, the release paper at one end of the uppermost waterproof sheet 11 of the waterproof sheet 11 stacked on the dedicated pallet 4 is peeled off from the end by an appropriate length, for example, about 30 cm by human power. One end, that is, the left end of FIG. 1 is sandwiched between release paper winders 7 and then the waterproof sheet 1
1 is passed over the release paper winder 7, and the left end of the waterproof sheet 11 in FIG. 1 is gripped by the left clamp 5, and at the same time, the other end of the waterproof sheet 11, that is, the right end in FIG. Hold it to the clamp 6 on the right side. Next, the roller 8 is lowered to a predetermined position above the waterproof sheet between the left clamp 5 and the release paper winder 7 to apply necessary tension to the waterproof sheet 11, and as shown in FIG. It is moved back out of the construction position.

Next, as shown in FIG. 6, the working device 3 is lowered together with the clamps 5 and 6 through the frame 9 of the work vehicle 1 to the concrete surface immediately after the waterproof sheet application surface 14 is cast, and the waterproof sheet 11 is removed. Contact the concrete surface,
The clamp 5 at the left end in FIG. 1 is opened, and the working device 3 is moved from one end, that is, from the left side in FIG. 1 to the right.

With the movement of the working device 3, the release paper adhered to the lower surface of the waterproof sheet 11 is taken up by the release paper take-up machine 7, while the waterproof sheet 11 is moved by the movement of the rollers 8. Is pressed against the concrete surface
When the roller 8 moves to the right end, the clamp 6 opens and the waterproof sheet 11 comes into close contact with the construction surface 14 immediately after the concrete is cast.

As described above, when the release paper winder 7 and the roller 8 are moved from the left side to the right end in FIG. 1 to complete the waterproofing, the waterproofing sheet 11 is left on the concrete working surface 14 and As shown in FIG. 7, the working device 3 and the left and right clamps 5, 6 move upward.

Next, as shown in FIG. 8, the work cart 1 and the work device 3 move to the next construction position in the direction of arrow F in FIG.
The work device 3 comes to a position just above the next waterproof sheet construction position and stops. At this time, the seat trolley 2 also moves so that the waterproof sheet 11 on the dedicated pallet 4 comes directly below the working device 3. Thereafter, returning to the procedure of FIG. 4, the construction of the waterproof sheet on the concrete surface is continuously performed while repeating the procedures of FIGS. 4 to 8.

The above embodiment is an example in which the present invention is applied to a floor slab thickening method. In this case, a concrete finisher is usually used, and a rail 12 for running the concrete finisher is laid. Although used, if there is no such rail 12, a self-propelled type in which tires are attached to wheels 13 may be used.

In addition, the above-mentioned waterproofing sheet construction apparatus, when installed on the site, has a width of 25 mm depending on the working width of the construction site.
It can be changed from a minimum of 3,500 mm to a maximum of 5,500 mm every 0 mm, and if there are steps on the left and right due to curbs or ground covering, etc. It is also possible to provide a difference in height so as to be able to respond.

[0023]

According to the method and apparatus for installing a waterproof sheet on a concrete surface according to the present invention described above, waterproofing can be performed in a condition that has not yet been hardened immediately after casting. 5 to 10 thicknesses on the concrete slab to increase the load capacity of the bridge concrete slab
Sheet concrete floor slab waterproofing material was used as a waterproof layer to prevent water from penetrating into the floor slab after the thickening of the floor slab by thickening the floor slab by adding new concrete of cm. It can be applied effectively in such cases, and can be expected to shorten the construction time, save labor in concrete work, and improve the quality of concrete.

Further, the present invention can be effectively applied not only as a waterproof layer of the above-described thickening method for an upper surface but also as an intermediate layer of a composite pavement and a waterproof layer of a precast slab. Further, when the present invention is applied as a waterproof layer of the floor slab upper surface thickening method, the traveling rail of the concrete finisher is used as it is, and the sheet system floor is run while running immediately after the concrete finisher. The plate waterproofing material can be installed, and the work efficiency and labor can be further reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of a waterproof sheet construction apparatus of the present invention.

FIG. 2 is a front sectional view in the AA direction of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a side view for explaining a state in which the waterproof sheet is transferred from the seat trolley to the working device, for explaining a procedure for performing waterproof sheet construction using the construction apparatus of FIG.

FIG. 5 is an explanatory side view of a state where the seat trolley is moved backward from the construction position in the state of FIG. 4;

FIG. 6 is an explanatory side view of the state in which the working device has been lowered to the construction surface, following FIG. 5;

7 is an explanatory side view of a state in which sheet working has been completed from the state of FIG. 6 and the working device has been raised;

FIG. 8 is a side view for explaining a state in which the seat trolley is pulled directly below the working device from the state of FIG. 7 and a waterproof sheet is set.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Working cart 2 Sheet cart 3 Working device 4 Dedicated pallet 5 Clamp 6 Clamp 7 Release paper winder 8 Roller 11 Waterproof sheet

Claims (7)

[Claims] 1. A work cart having a seat cart and a working device is positioned on a waterproof sheet application position of the work machine, and the seat cart is moved and stopped so that the waterproof sheet comes directly under the work device, and then waterproofed. Stretch the seat, retract the seat trolley out of the seat construction position, peel off the release paper,
A method for waterproofing a concrete surface, in which a working device is moved upward after a waterproof sheet is pressed on a working surface and this operation is repeated. 2. A work vehicle loaded with a working device and capable of moving a seat truck is moved to a position directly above the installation position, and a waterproof sheet loaded on the seat truck is positioned directly below the working device. Move the sheet carriage so that it comes to a stop, peel off one end of the release sheet of the upper waterproof sheet appropriately, fix it to the release paper winder, and pass the waterproof sheet at the end portion over the release paper winder. Hold the sheet by the clamp, hold the other end of the waterproof sheet by the other clamp, lower the roller to the predetermined position on the upper surface of the sheet, and place the seat cart with the waterproof sheet suspended by each clamp on both ends. Moving the work equipment out, lowering the work equipment to the concrete sheet waterproofing surface, and moving the work equipment from one end to the other end, the release paper is taken up by the release paper winder, and the waterproof sheet is rolled up by the roller. By moving A method for applying a waterproof sheet to a concrete surface, in which the work equipment is raised by pressing the work surface, the clamps at both ends are opened, the work device is moved to the next work position, and the above procedure is repeated. 3. A working device for pressing the waterproof sheet on the concrete waterproof sheet construction surface while applying appropriate tension to both ends of the waterproof sheet, a seat cart for loading the waterproof sheet to be supplied to the working device, and a power unit. And a self-propelled device, a work vehicle capable of vertically moving the work device, and a work vehicle capable of moving the seat vehicle. 4. The apparatus for applying a waterproof sheet to a concrete surface according to claim 3, wherein the working device is provided with a clamp for applying an appropriate tension while gripping both ends of the waterproof sheet. 5. The concrete surface according to claim 3, wherein the working device is provided with a roller that presses the waterproof sheet on the waterproof sheet application surface while applying tension while gripping both ends of the waterproof sheet. Waterproof sheet construction equipment. 6. The apparatus for applying a waterproof sheet to a concrete surface according to claim 3, wherein the work apparatus is provided with a release paper take-up machine for winding release paper adhered to a lower surface of the waterproof sheet. 7. The apparatus for applying a waterproof sheet to a concrete surface according to claim 3, wherein a predetermined amount of a waterproof sheet is mounted on the sheet carriage so as to be reloadable together with a dedicated pallet.