Method for disposing of residual concrete, and method for disposing of residual concrete.

Abstract

By using materials that can be procured on-site, the time and effort required for disposing of leftover concrete can be reduced. [Solution] A method for processing residual concrete discharged during the cleaning of a concrete pump truck comprises a preparation step of preparing a residual concrete processing device in the washing area of ​​the concrete pump truck, the device comprising a steel plate and a frame detachably provided on the steel plate, the frame being formed of square timbers; a discharge step after the preparation step of discharging the residual concrete from the concrete pump truck into the frame area on the steel plate; a dewatering step after the discharge step of dewatering the residual concrete discharged into the frame area; a removal step after the dewatering step of removing the frame from the steel plate; and a crushing step after the removal step of crushing the residual concrete after dewatering.

Description

Technical Field

[0005]

[0001] The present disclosure relates to a residual concrete processing method and a residual concrete processing apparatus for processing residual concrete discharged during the cleaning of a concrete pump truck.

Background Art

[0002] Conventionally, residual concrete has been discharged onto a sheet, and after drying, workers have crushed it using a hammer or the like. Then, the crushed residual concrete is transported to an accumulation location (congala storage location) and temporarily stored. Such processing of residual concrete takes time and labor. Furthermore, in this processing method, the sheet is damaged, so it is necessary to prepare another sheet. For this reason, various improvements have been made regarding the processing of residual concrete. For example, Patent Document 1 discloses a residual concrete processing apparatus including a box-shaped main body that is disassemblably assembled and has an open upper portion, a partition wall that partitions the inside of the main body into small compartments, and a vibration generating device that generates vibration in the main body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the technique described in Patent Document 1, a dedicated apparatus and members for processing residual concrete are required. Therefore, the present inventors have devised a residual concrete processing method and a residual concrete processing apparatus that can suppress time and labor using materials that can be procured on-site. <000002​​This disclosure has been made in view of the above-mentioned problems, and aims to provide a method for processing leftover concrete and a method for processing leftover concrete that can reduce the time and labor required for processing leftover concrete using materials that can be procured on-site. [Means for solving the problem]

[0006] To achieve the above objective, the residual concrete treatment method according to the present disclosure is a residual concrete treatment method for treating residual concrete discharged during the cleaning of a concrete pump truck, comprising: a preparation step of preparing a residual concrete treatment device in the washing area of ​​the concrete pump truck, the device comprising a steel plate and a frame body detachably provided on the steel plate, the frame body being formed of square timbers; a discharge step, after the preparation step, of discharging the residual concrete from the concrete pump truck into the frame body area on the steel plate; a dewatering step, after the discharge step, of dewatering the residual concrete discharged into the frame body area; a removal step, after the dewatering step, of removing the frame body from the steel plate; and a crushing step, after the removal step, of crushing the residual concrete after dewatering.

[0007] To achieve the above objective, the residual concrete treatment device according to the present disclosure is a residual concrete treatment device for treating residual concrete discharged during the cleaning of a concrete pump truck, comprising: a steel plate; a frame detachably provided on the steel plate, the frame being formed of square timbers; and a pressing device for pressing the steel plate and the frame together so that moisture contained in the residual concrete discharged into the frame region defined by the steel plate and the frame can pass between the steel plate and the frame. [Effects of the Invention]

[0008] According to the residual concrete treatment method and residual concrete treatment apparatus of this disclosure, the time and labor required for processing residual concrete can be reduced by using materials that can be procured on-site. [Brief explanation of the drawing]

[0009] [Figure 1] This is a flowchart of a residual concrete treatment method according to one embodiment. [Figure 2] This is a schematic perspective view showing the configuration of a residual concrete processing device according to one embodiment. [Figure 3] This is a schematic perspective view showing the configuration of a steel plate support member according to one embodiment. [Figure 4] This is a diagram illustrating the discharge step according to one embodiment. [Figure 5] This is a diagram illustrating the dewatering step according to one embodiment. [Figure 6] This diagram illustrates the transport step according to one embodiment. [Figure 7] This is a diagram illustrating the drop-in step according to one embodiment. [Figure 8] This diagram schematically shows the configuration of a pressure welding device according to several embodiments. [Modes for carrying out the invention]

[0010] The residual concrete treatment method and residual concrete treatment apparatus according to the embodiments of this disclosure will be described below with reference to the drawings. The embodiments described below represent one aspect of this disclosure and are not limiting, and can be modified at will within the scope of the technical idea of ​​this disclosure.

[0011] (Method for disposing of leftover concrete) The residual concrete treatment method described herein is a method for treating residual concrete discharged during the cleaning of a concrete pump truck 100. Figure 1 is a flowchart of the residual concrete treatment method according to one embodiment.

[0012] As shown in Figure 1, the residual concrete treatment method includes a preparation step S1, a discharge step S2, a dewatering step S3, a removal step S4, a transport step S5, a crushing step S6, and a drop-in step S7. In the embodiment illustrated in Figure 1, the residual concrete treatment method further includes a drying step S8, a residue crushing step S9, and a residue accumulation step S10.

[0013] In preparation step S1, the residual concrete treatment device 1 is prepared in the washing area of ​​the concrete pump truck 100. The washing area of ​​the concrete pump truck 100 is located at or near the site where the concrete pouring work is to be carried out. The residual concrete treatment device 1 is a device for treating the residual concrete X discharged when the concrete pump truck 100 is washed.

[0014] The configuration of the residual concrete treatment device 1 will now be described. Figure 2 is a schematic perspective view showing the configuration of the residual concrete treatment device 1 according to one embodiment. As shown in Figure 2, the residual concrete treatment device 1 includes a steel plate 2, a frame 4, a pressure welding device 6, a water receiving sheet 8, a water receiving sheet support member 10 on one side, a water receiving sheet support member 12 on the other side, and a steel plate support member 14.

[0015] The steel plate 2 has a rectangular shape. The width and length of the steel plate 2 are not particularly limited, for example, it may be 1.5m wide and 3m long. The steel plate 2 is laid, for example, for vehicle traffic at the site or to support the outriggers of the concrete pump truck 100. In other words, the steel plate 2 can be procured on site. This disclosure does not limit the steel plate 2 to a rectangular shape. The steel plate 2 may have other shapes such as a square, triangle, or pentagon.

[0016] In this disclosure, the shorter side (horizontal direction) of the rectangular steel plate 2 is described as the left-right direction D1, and the longer side (vertical direction) of the rectangular steel plate 2 is described as the front-back direction D2. One of the left-right directions D1 is defined as the left, and the other as the right. One of the front-back directions D2 is defined as the front, and the other as the rear. Furthermore, the direction of gravity is defined as below the up-down direction D3, and the direction opposite to the direction of gravity is defined as above the up-down direction D3.

[0017] The frame body 4 is detachably provided on the iron plate 2. This frame body 4 is formed by the square timbers 7. The square timbers 7 are made of wood and have a bar shape with a rectangular cross-section. In one embodiment, the frame body 4 is formed by four square timbers 7. The frame body 4 is a rectangular frame 4A(4), and each of the four square timbers 7 is arranged on the iron plate 2 so as to constitute one side of the rectangular frame 4A. Further, the tip portions of each of the four square timbers 7 form the corner portions 4a of the rectangular frame 4A. Each of the four square timbers 7 is arranged along the edge of the iron plate 2. The square timbers 7 are installed, for example, for supporting and reinforcing the formwork used during casting on site. That is, the square timbers 7 can be procured on site. Note that the present disclosure does not limit the frame body 4 to the rectangular frame 4A. The frame body 4 may be a triangular frame, a pentagonal frame, a circular frame, or the like. Further, the present disclosure does not limit the arrangement of the square timbers 7 to the edge of the iron plate 2. The square timbers 7 may be arranged closer to the center than the edge of the iron plate 2.

[0018] Hereinafter, the square timber 7 constituting the front side of the rectangular frame 4A will be referred to as the front side square timber 7A(5), the square timber 7 constituting the rear side of the rectangular frame 4A will be referred to as the rear side square timber 7B(5), the square timber 7 constituting the left side of the rectangular frame 4A will be referred to as the left side square timber 7C(5), and the square timber 7 constituting the right side of the rectangular frame 4A will be referred to as the right side square timber 7D(5).

[0019] In one embodiment, on the iron plate 2, a release agent Y for peeling off the remaining concrete X is applied to the entire upper surface of the surface. That is, on the iron plate 2, the release agent Y is applied to the receiving surface 16 facing the frame inner region 5 of the frame body 4. The release agent Y is, for example, a formwork release agent (manufactured by MANOL Co., Ltd.). In some embodiments, the release agent Y is applied to the frame body 4. More specifically, on the frame body 4, the release agent Y is applied to the inner surface facing the frame inner region 5.

[0020] The welding tool 6 presses the steel plate 2 and the frame 4 together so that the water XW contained in the residual concrete X discharged into the frame area 5 can pass between the steel plate 2 and the frame 4 (see Figure 5). In one embodiment, the welding tool 6 is configured to clamp the steel plate 2 and the frame 4, for example, a clamp. This welding tool 6 clamps the corners 4a of the rectangular frame 4A and the steel plate 2. Each of the four corners 4a of the rectangular frame 4A is pressed against the steel plate 2 by one welding tool 6. In other words, the tip of each of the four corner members 7 is pressed against the steel plate 2.

[0021] The water receiving sheet 8 is positioned below the steel plate 2 and is capable of receiving moisture XW falling from the steel plate 2 (see Figure 5). The water receiving sheet 8 is not particularly limited as long as it is configured to receive moisture XW without allowing it to pass through, for example, it could be a waterproof sheet. The length of the water receiving sheet 8 in the left-right direction D1 is greater than that of the steel plate 2, and the length in the front-back direction D2 is also greater (the water receiving sheet 8 is larger in both width and height than the steel plate 2). When viewed from above, the water receiving sheet 8 covers the entire steel plate 2 from below. In other words, the water receiving sheet 8 is spread out to surround the perimeter of the steel plate 2.

[0022] The one-sided water receiving sheet support member 10 supports one side of the water receiving sheet 8 in one direction. In one embodiment, the one-sided water receiving sheet support member 10 is a square timber 7 and is positioned to extend along the front-rear direction D2 below the left end of the left side in the left-right direction D1 of the water receiving sheet 8. The one-sided water receiving sheet support member 10 is located to the left of the iron plate 2. The water receiving sheet 8 is fixed to the one-sided water receiving sheet support member 10 by screws 18.

[0023] The other-side water receiving sheet support member 12 supports the other side of the water receiving sheet 8 in one direction so that the water receiving sheet 8 bends downward. In one embodiment, the other-side water receiving sheet support member 12 is a square timber 7 and is positioned to extend along the front-rear direction D2 below the right end of the right side in the left-right direction D1 of the water receiving sheet 8. The other-side water receiving sheet support member 12 is located to the right of the iron plate 2. The water receiving sheet 8 is fixed to the other-side water receiving sheet support member 12 by screws 18 so that it bends downward.

[0024] The steel plate support member 14 is positioned between the water receiving sheet 8 and the steel plate 2 and supports the steel plate 2. Figure 3 is a schematic perspective view showing the configuration of the steel plate support member 14 according to one embodiment. As illustrated in Figure 3, in one embodiment, the steel plate support member 14 includes four spacers 20 and two upper members 22. Two of the four spacers 20 are arranged side by side with a gap between them along the left-right direction D1. One of the two upper members 22 rests on these two spacers 20. The spacers 20 have a height of 10 cm to 30 cm, for example, a concrete block with a height of 22 cm. The upper member 22 is a square timber 7 and rests on the two spacers 20 so as to extend along the left-right direction D1. The remaining two spacers 20 and the one upper member 22 are arranged similarly. In other words, the steel plate support member 14 includes two support members 24, each composed of two spacers 20 and one upper member 22. One of the two support members 24 is positioned below the front portion of the steel plate 2, and the other support member 24 is positioned below the rear portion of the steel plate 2. However, this disclosure is not limited to the configuration of the steel plate support member 14 as illustrated in Figure 3. The number of spacers 20 may be other than four, and the number of upper members 22 may be other than two. For example, the steel plate support member 14 may consist of one spacer 20 and three upper members 22 placed on this spacer 20.

[0025] Let's return to the explanation of preparation step S1. In preparation step S1, the above-described residual concrete treatment device 1 is prepared in the washing area of ​​the concrete pump truck 100. In one embodiment, workers procure steel plates 2, square timbers 7 (frame 4, one-sided water receiving sheet support member 10, the other-sided water receiving sheet support member 12, and upper member 22), clamps (pressure welding tools 6), waterproof sheets (water receiving sheets 8), concrete blocks (spacers 20), and screws 18 from the site, and assemble the residual concrete treatment device 1 using these procured materials.

[0026] This disclosure does not particularly limit the method of assembling the residual concrete treatment device 1. For example, the residual concrete treatment device 1 is assembled by sequentially arranging the components of the residual concrete treatment device 1, starting from the components closest to the installation surface GL, such as the ground. Specifically, a worker places two square timbers 7 (one-sided water receiving sheet support member 10, the other-sided water receiving sheet support member 12) on the installation surface GL, and attaches a waterproof sheet (water receiving sheet 8) to these two square timbers 7 using screws 18. Next, the worker places a steel plate support member 14, which is composed of four concrete blocks (spacers 20) and two square timbers 7 (upper members 22), on the water receiving sheet 8. Next, the worker places a steel plate 2 on the steel plate support member 14, and places a frame 4 formed by the square timbers 7 on this steel plate 2. Finally, the worker presses the frame 4 to the steel plate 2 using a clamp (pressure welding tool 6).

[0027] In discharge step S2, after preparation step S1, the remaining concrete X is discharged from the concrete pump truck 100 into the frame area 5 of the frame body 4 on the steel plate 2. Figure 4 is a diagram illustrating the discharge step S2 according to one embodiment. As shown in Figure 4, the remaining concrete X discharged from the concrete pump truck 100 falls into the frame area 5. The concrete pump truck 100 is parked to the left of the remaining concrete treatment device 1.

[0028] In the dewatering step S3, the remaining concrete X discharged into the frame area 5 after the discharge step S2 is dewatered. Figure 5 is a diagram illustrating the dewatering step S3 according to one embodiment, showing the remaining concrete processing device 1 viewed from the front. As shown in Figure 5, in the dewatering step S3, the water XW contained in the remaining concrete X is passed between the steel plate 2 and the frame body 4 and dropped from the steel plate 2. The water receiving sheet 8 then receives the dropped water XW and stores it. In other words, in the dewatering step S3, the worker waits until the remaining concrete X discharged into the frame area 5 is dewatered and hardens appropriately. In one embodiment, as described above, the tip of the square timber 7 (corner 4a of the rectangular frame 4A) is pressed against a clamp (pressure welding tool 6). Therefore, as shown in Figure 5, as you move from the tip (left end) of the front square timber 7A to the other end (right end), the pressure acting between the steel plate 2 and the frame body 4 decreases, and the amount of water XW passing through increases. The rear corner timber 7B, left corner timber 7C, and right corner timber 7D are the same as the front corner timber 7A.

[0029] In removal step S4, the frame 4 is removed from the steel plate 2 after the dewatering step S3. In one embodiment, the worker loosens the pressure clamp 6 (claw clamp) and then removes the frame 4 and the pressure clamp 6. Once the frame 4 and the pressure clamp 6 are removed, moderately hardened dewatered concrete X remains on the steel plate 2.

[0030] In the transport step S5, after the removal step S4 and before the crushing step S6, the steel plate 2, on which the dewatered remaining concrete X is placed, is transported to the storage area 200 by the transporter 110. Figure 6 is a diagram illustrating the transport step S5 according to one embodiment. As shown in Figure 6, the transporter 110 is a forklift 110A (110), and the forks 112 (tines) of the forklift 110A are inserted under the steel plate 2. In one embodiment, the remaining concrete processing device 1 includes a spacer 20, so that the steel plate 2 is positioned above the one-sided water receiving sheet support member 10 by the height of the spacer 20 (22 cm). The forks 112 are inserted under the steel plate 2 by utilizing the height difference created by the installation of this spacer 20. Furthermore, the forks 112 are inserted between two support members 24 in the front-rear direction D2. The storage area 200 is a so-called rubble storage area where concrete rubble is temporarily stored. Furthermore, if the location where the residual concrete treatment device 1 is installed is adjacent to the collection area 200 and transportation of the steel plates 2 is unnecessary, the transportation step S5 may be skipped. The steel plates 2 may also be transported by a transport device 110 other than a forklift. For example, the steel plates 2 may be transported by a mobile crane such as a Unic truck.

[0031] In the crushing step S6, the remaining concrete X after dewatering is crushed after the removal step S4. In one embodiment, the remaining concrete X after dewatering is crushed with an excavator after the transport step S5. More specifically, a worker operates the excavator and crushes the remaining concrete X after dewatering on the steel plate 2 by pressing it from above with the bucket of the excavator. However, this disclosure is not limited to the method of crushing the remaining concrete X after dewatering. The remaining concrete X after dewatering may be crushed with heavy machinery other than an excavator. The remaining concrete X after dewatering may also be crushed indirectly by a non-contact method, such as applying vibration to the steel plate 2.

[0032] In the dropping step S7, after the crushing step S6, the steel plate 2 is tilted to drop the crushed, dewatered remaining concrete X on the steel plate 2 into the collection area 200. Figure 7 is a diagram illustrating the dropping step S7 according to one embodiment. As shown in Figure 7, in the dropping step S7, a worker operates a crane 150 to lift one end of the steel plate 2 that is opposite to the collection area 200. However, this disclosure is not limited to the method of tilting the steel plate 2 as described above. The steel plate 2 may be tilted using heavy machinery other than a crane.

[0033] In the drying step S8, the moisture XW on the water receiving sheet 8 is dried after the dewatering step S3. In one embodiment, after the removal step S4, the worker allows the moisture XW on the water receiving sheet 8 to air dry until residue XA is generated. The air drying period is not particularly limited, but for example, it may be until the next day. In some embodiments, the drying step S8 accelerates the drying of the moisture XW on the water receiving sheet 8 by removing the supernatant of the moisture XW accumulated on the water receiving sheet 8. The drying step S8 can be performed at any time as long as it is performed after the dewatering step S3. The drying step S8 may be performed before the transport step S5 or after the drop-in step S7.

[0034] In the residue crushing step S9, the residue XA generated after the drying step S8 by the drying of moisture XW on the water receiving sheet 8 is crushed. In one embodiment, a worker crushes the residue XA using a hammer or the like. Since the residue XA is more brittle than the remaining concrete X after dewatering, it can be crushed with less effort. Alternatively, the residue XA may be crushed using heavy machinery.

[0035] In the residue accumulation step S10, after the residue crushing step S9, the crushed residue XA is accumulated in the accumulation area 200. In one embodiment, a worker places the crushed residue XA on the water receiving sheet 8 into the water receiving sheet 8 by folding the water receiving sheet 8. The worker then carries the water receiving sheet 8 containing the crushed residue XA to the accumulation area 200 and accumulates the crushed residue XA in the accumulation area 200. Alternatively, the crushed residue XA may be transported to the accumulation area 200 by a transporter 110.

[0036] (Effects / Actions) The operation and effects of the residual concrete treatment method described herein will now be explained. Conventionally, residual concrete X was discharged onto a sheet and, after drying, was crushed by workers using hammers or the like. Such methods of treating residual concrete X are time-consuming and labor-intensive. In contrast, according to one embodiment, the residual concrete treatment device 1 can be prepared with just a steel plate 2, a square timber 7, a clamp, a waterproof sheet, a concrete block, and screws 18. Since the dewatered residual concrete X is on the steel plate 2, it can be easily crushed by pressing down on the dewatered residual concrete X on the steel plate 2 from above with the bucket of an excavator. Therefore, the time and labor required for treating residual concrete X can be reduced by using materials that can be procured on-site. Furthermore, since the steel plate 2 is less prone to damage than a sheet, it is advantageous that the same steel plate 2 can be used multiple times to treat residual concrete X.

[0037] In one implementation, a worker operates a crane 150 to tilt the steel plate 2, causing the crushed, dewatered remaining concrete X on the steel plate 2 to fall into the collection area 200. Therefore, compared to the case where a worker places the crushed, dewatered remaining concrete X into the collection area 200, the labor required for processing the remaining concrete X can be reduced.

[0038] According to one embodiment, the steel plate 2 on which the dewatered remaining concrete X is placed is transported to the collection area 200 by a forklift 110A. Therefore, compared to the case where workers transport the dewatered remaining concrete X, the labor required for processing the remaining concrete X can be reduced.

[0039] According to one embodiment, the residual concrete treatment method includes a drying step S8, a residue crushing step S9, and a residue accumulation step S10, so that the residue XA is also accumulated in the accumulation area 200. Therefore, the amount of residual concrete X accumulated in the accumulation area 200 can be increased.

[0040] According to one embodiment, since a release agent Y is applied to the receiving surface 16 of the steel plate 2, the adhesion of residual concrete X to the steel plate 2 can be suppressed.

[0041] According to one embodiment, since the residual concrete treatment device 1 includes a water receiving sheet 8, the infiltration of moisture XW contained in the residual concrete X into the ground can be suppressed, thereby suppressing contamination of the surrounding soil and groundwater. According to one embodiment, since the water receiving sheet 8 is bent downward, the amount of moisture XW that the water receiving sheet 8 can receive can be increased.

[0042] According to one embodiment, since the steel plate support member 14 includes a spacer 20, space can be secured below the steel plate 2 for inserting the forks 112 of the forklift 110A. According to one embodiment, since the spacer 20 is 30 cm or less, interference between the residual concrete treatment device 1 (especially the frame 4) and the concrete pump truck 100 can be suppressed.

[0043] According to one embodiment, since the pressure welding device 6 is a clamp, the corner 4a of the rectangular frame 4A is clamped with the steel plate 2, thereby suppressing the movement of the rectangular frame 4A when discharging the remaining concrete X into the frame area 5, and allowing the remaining concrete X in the frame area 5 to be suitably dewatered. However, this disclosure does not limit the pressure welding device 6 to a clamp. Figure 8 is a schematic diagram showing the configuration of the pressure welding device 6 according to several embodiments. As illustrated in Figure 8, in some embodiments, the pressure welding device 6 includes a batten 30 and two nails 32. The batten 30 rests on two square timbers 7 that correspond to adjacent sides of the four sides of the rectangular frame 4A. The nails 32 penetrate the batten 30 and the square timbers 7, thereby fixing the batten 30 to the rectangular frame 4A. One of the two nails 32 penetrates the batten 30 and one of the timbers 7 (for example, the front timber 7A), while the other of the two nails 32 penetrates the batten 30 and the other timber 7 (for example, the left timber 7C).

[0044] The contents described in each of the above embodiments can be understood, for example, as follows:

[0045] [1] The residual concrete treatment method relating to this disclosure is a residual concrete treatment method for treating residual concrete (X) discharged during the cleaning of a concrete pump truck (100), Preparation step (S1) involves preparing a residual concrete treatment device (1) in the washing area of ​​the concrete pump truck, which comprises a steel plate (2) and a frame (4) formed of square timbers (7) that is detachably mounted on the steel plate. Following the preparation step, a discharge step (S2) is performed in which the remaining concrete is discharged from the concrete pump truck into the frame area (5) of the frame on the steel plate, Following the discharge step, a dewatering step (S3) is performed to dewater the remaining concrete discharged into the area within the frame, After the dewatering step, a removal step (S4) is performed to remove the frame from the iron plate, The process includes a crushing step (S6) in which the remaining concrete after dewatering is crushed, following the removal step.

[0046] Traditionally, leftover concrete was discharged onto sheets and, after drying, was broken up by workers using hammers or other tools. This method of processing leftover concrete is time-consuming and labor-intensive. In contrast, the method described in [1] above allows for the preparation of a leftover concrete processing device using only steel plates and lumber. Since the dewatered leftover concrete is on the steel plates, it can be easily broken up with heavy machinery such as an excavator. Therefore, the time and labor required for processing leftover concrete can be reduced by using materials that can be procured on-site. Furthermore, since steel plates are less prone to damage than sheets, it is advantageous that the same steel plate can be used multiple times for processing leftover concrete.

[0047] [2] In some embodiments, the method described in [1] above, The crushing step involves crushing the remaining concrete after dewatering with heavy machinery. The method further includes a dropping step (S7) in which the crushed dewatered remaining concrete on the steel plate is dropped into a collection area (200) by tilting the steel plate.

[0048] The method described in [2] above reduces the labor required for processing the remaining concrete compared to when workers crush the remaining concrete after dewatering or when workers place the crushed remaining concrete after dewatering at a collection point.

[0049] [3] In some embodiments, the method described in [2] above, After the removal step and before the crushing step, the system further includes a transport step (S5) in which the steel plate on which the dewatered remaining concrete is placed is transported to the storage area by a transport machine (110).

[0050] The method described in [3] above reduces the labor required for processing the remaining concrete compared to the case where workers transport the remaining concrete after dewatering.

[0051] [4] In some embodiments, in the method described in [2] or [3] above, The residual concrete treatment device further comprises a pressure welding tool (6) that presses the steel plate and the frame body together so that the water (XW) contained in the residual concrete discharged into the frame area can pass between the steel plate and the frame body, and a water receiving sheet (8) positioned below the steel plate to receive the water falling from the steel plate. The dewatering step removes the moisture from the iron plate. Following the dewatering step, a drying step (S8) is performed to dry the moisture on the water receiving sheet, Following the drying step, a residue crushing step (S9) is performed to crush the residue (XA) generated by the drying of the moisture on the water receiving sheet. The process further includes a residue accumulation step (S10) in which the crushed residue is accumulated in the accumulation location after the residue crushing step.

[0052] According to the method described in [4] above, the residue is also collected at the collection site, so the amount of residual concrete collected at the collection site can be increased.

[0053] [5] In some embodiments, the method described in any one of [1] to [4] above, The steel plate has a release agent (Y) applied to the receiving surface 16 of its surface that faces the area within the frame, which is used to remove the remaining concrete.

[0054] According to the method described in [5] above, the adhesion of residual concrete to the steel plate can be suppressed.

[0055] [6] The residual concrete treatment device relating to this disclosure is A residual concrete treatment device (1) for treating residual concrete (X) discharged during the cleaning of a concrete pump truck (100), Iron plate (2), A frame body that is detachably provided on the aforementioned iron plate, comprising a frame body (4) formed by square timbers (7), The system includes a pressure welding tool (6) that presses the steel plate and the frame together so that the moisture (XW) contained in the residual concrete discharged into the frame-in-frame region (5) of the frame on the steel plate can pass between the steel plate and the frame.

[0056] Traditionally, leftover concrete was discharged onto a sheet and, after drying, was broken up by workers using hammers or other tools. This method of processing leftover concrete is time-consuming and labor-intensive. In contrast, according to the configuration described in [6] above, the leftover concrete processing device can be easily prepared in the washing area of ​​a concrete pump truck if a steel plate, a square timber, and a pressure welding tool such as a clamp are available. Since the leftover concrete after dewatering is on the steel plate, it can be easily broken up with heavy machinery such as an excavator. Therefore, the time and labor required for processing leftover concrete can be reduced by using materials that can be procured on-site. Furthermore, since steel plates are less prone to damage than sheets, it is advantageous that the same steel plate can be used multiple times for processing leftover concrete.

[0057] [7] In some embodiments, in the configuration described in [6] above, The system further includes a water receiving sheet (8) positioned below the iron plate to receive the moisture falling from the iron plate.

[0058] According to the configuration described in [7] above, the infiltration of moisture contained in the residual concrete into the ground can be suppressed, thereby suppressing contamination of the surrounding soil and groundwater.

[0059] [8] In some embodiments, in the configuration described in [7] above, A one-sided water receiving sheet support member (10) that supports one side of the water receiving sheet in one direction (D1), A water receiving sheet support member (12) supports the other side of the water receiving sheet in the one direction such that the water receiving sheet bends downward, The system further comprises a metal plate support member (14) positioned between the water receiving sheet and the metal plate, and supporting the metal plate.

[0060] According to the configuration described in [8] above, the amount of moisture that the water receiving sheet can receive can be increased.

[0061] [9] In some embodiments, in the configuration described in [8] above, The aforementioned steel plate support member includes a spacer (20) and an upper member (22) that rests on the spacer. Each of the aforementioned one-sided water receiving sheet support member, the other-sided water receiving sheet support member, and the upper member is a square timber (7).

[0062] According to the configuration described in [9] above, space can be secured below the steel plate for inserting the arm of a transport vehicle (e.g., a forklift).

[0063]

[10] In some embodiments, in the configuration described in any one of [6] to [9] above, The frame is a rectangular frame (4A), The clamping device is configured to clamp the corner (4a) of the rectangular frame and the iron plate.

[0064] According to the configuration described in

[10] above, the corners are held between the steel plates, which suppresses the movement of the frame when discharging the remaining concrete into the frame area, and also allows for effective dewatering of the remaining concrete within the frame area. [Explanation of symbols]

[0065] 1. Remaining concrete treatment device 2 Iron plate 4 Frame 4A Rectangular frame 4a Corner of the rectangular frame 5. Area within the frame 6. Compression fittings 7 square timber 7A Front square timber 7B Rear corner timber 7C Left corner timber 7D Right corner timber 8. Water receiving sheet 10 One-sided water receiving sheet support member 12 Other side water receiving sheet support member 14. Steel plate support member 16 Receiving surface 18 screws 20 Spacers 22 Upper member 24 Support 30 wooden beams 32 nails 100 Concrete pump trucks 110 Transport Machine 110A Forklift 112 Forks 150 Cranes 200 collection points D1 Left / right direction D2 Anteroposterior direction D3 Vertical direction GL installation surface S1 Preparation Steps S2 Discharge Step S3 Dehydration Step S4 Removal Step S5 Transport Step S6 Crushing step S7 Drop-in Step S8 Drying Step S9 Residue crushing step S10 Residue accumulation step X Remaining concrete XA residue XW Moisture Y Stripping Agent

Claims

1. A method for treating residual concrete discharged during the cleaning of a concrete pump truck, A preparation step involves preparing a residual concrete treatment device in the washing area of ​​the concrete pump truck, which comprises a steel plate and a frame detachably mounted on the steel plate, the frame being formed from square timbers. After the preparation step, a discharge step is performed in which the remaining concrete is discharged from the concrete pump truck into the frame area of ​​the frame on the steel plate, Following the discharge step, a dewatering step is performed to dewater the remaining concrete discharged into the area within the frame, After the dewatering step, a removal step is performed to remove the frame from the iron plate, The method further includes a crushing step, which involves crushing the remaining concrete after dewatering, following the removal step. Methods for disposing of leftover concrete.

2. The crushing step involves crushing the remaining concrete after dewatering with heavy machinery. The invention further comprises a dropping step in which, after the crushing step, the crushed, dewatered remaining concrete on the steel plate is dropped into a collection area by tilting the steel plate. The method for treating residual concrete according to claim 1.

3. The method further includes a transport step, after the removal step and before the crushing step, in which the steel plate on which the dewatered remaining concrete is placed is transported by a transport machine to the storage area. The method for treating residual concrete according to claim 2.

4. The residual concrete treatment device further comprises a pressing device that presses the steel plate and the frame body together so that moisture contained in the residual concrete discharged into the frame area can pass between the steel plate and the frame body, and a water receiving sheet positioned below the steel plate to receive the moisture falling from the steel plate. The dewatering step removes the moisture from the iron plate. Following the dewatering step, a drying step is performed to dry the moisture on the water receiving sheet, Following the drying step, a residue crushing step is performed to crush the residue generated by the drying of the moisture on the water receiving sheet, The method further comprises a residue accumulation step of accumulating the crushed residue in the accumulation location after the residue crushing step. The method for treating residual concrete according to claim 2 or 3.

5. The aforementioned steel plate has a release agent applied to the receiving surface of its surface that faces the area within the frame, which is used to remove the remaining concrete. A method for treating residual concrete according to any one of claims 1 to 3.

6. A device for treating residual concrete discharged during the cleaning of a concrete pump truck, Iron plate and, A frame that is detachably provided on the aforementioned steel plate, the frame being formed of square timbers, The system includes a pressure welding tool that presses the steel plate and the frame together so that moisture contained in the residual concrete discharged into the frame-internal region of the frame on the steel plate can pass between the steel plate and the frame. A device for disposing of residual concrete.

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