Concrete cooling method and concrete cooling system

Abstract

To provide a concrete cooling method and concrete cooling apparatus that simplify the configuration, reduce costs, and facilitate installation. [Solution] A concrete cooling method according to one embodiment cools poured concrete. The concrete cooling method comprises the steps of cooling water W2 for cooling the concrete, and putting the water W1 cooled in the cooling step into a cooling pipe embedded in the concrete to cool the concrete. In the step of cooling the water, the water W2 for cooling the concrete is poured over a plurality of linear bodies 21c, and the water W2 is cooled by dispersing the water W2 on the plurality of linear bodies 21c.

Description

Technical Field

[0001] The present disclosure relates to a concrete cooling method and a concrete cooling system for cooling placed concrete.

Background Art

[0002] Patent Document 1 describes a pipe cooling system using a plurality of cooling pipes embedded in a concrete structure. The pipe cooling system includes a box-shaped water tank with an open upper surface for storing water as a refrigerant, a water supply section for supplying the water stored in the water tank to the plurality of cooling pipes, and a recovery section for recovering the water used for cooling the concrete structure and returning it to the water tank.

[0003] The pipe cooling system includes a heat exchanger for cooling the water returned to the water tank. The heat exchanger includes a heat exchange section having a plurality of stacked heat dissipation plates and a plurality of single pipes, a plurality of water sprinkling pipes, and a plurality of blowers for sending air to the heat exchange section. Water is sprinkled from the plurality of water sprinkling pipes onto the heat exchange section, and the sprinkled water is cooled while moving downward through the plurality of heat dissipation plates. By the blower sending air to the heat exchange section, the cooling capacity of the water in the plurality of heat dissipation plates is enhanced.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the above-described pipe cooling system, the heat exchanger includes a plurality of heat dissipation plates, a plurality of single pipes, a plurality of water sprinkling pipes, and a plurality of blowers, resulting in a problem that the equipment is large-scale and the cost is high. When the equipment is large-scale, there may also be a problem that installation is not easy.

[0006] The purpose of this disclosure is to provide a concrete cooling method and concrete cooling apparatus that simplifies the configuration, reduces costs, and facilitates installation. [Means for solving the problem]

[0007] (1) The concrete cooling method relating to this disclosure cools poured concrete. The concrete cooling method comprises the steps of cooling water for cooling concrete and cooling concrete by placing the water cooled in the cooling step into a cooling pipe embedded in the concrete. In the step of cooling water, the water for cooling concrete is poured onto multiple linear bodies, and the water is cooled by dispersing the water on the multiple linear bodies.

[0008] In this concrete cooling method, the water used to cool the concrete is cooled during the water cooling process, and the cooled water is then placed into cooling pipes embedded in the concrete. The concrete is cooled by the passage of the cooled water into the cooling pipes. The water used to cool the concrete is poured onto multiple linear bodies, and the water is cooled by dispersing across these linear bodies. When water disperses across multiple linear bodies, the surface area of ​​the water relative to the air increases, thus cooling the water. That is, the water disperses across multiple linear bodies into droplets, and the increased surface area relative to the air cools by evaporation. Therefore, since only multiple linear bodies are needed to cool the water, large-scale equipment is unnecessary. Thus, the configuration for water cooling is simplified, costs are reduced, and installation is easy.

[0009] (2) In the concrete cooling method described in (1) above, the concrete cooling method may include a step of recovering water that overflows from the cooling pipe during the concrete cooling step. In the water cooling step, the water recovered in the recovery step may be cooled. In this case, by recovering and cooling the water that overflows from the cooling pipe, the water can be reused and circulated for cooling.

[0010] (3) In the above (2), the concrete cooling method may include a step of installing formwork around the upper end of the cooling pipe in the concrete and collecting the water that overflows inside the formwork. In the collection step, the water collected inside the formwork may be collected. In this case, the water that overflows inside the formwork can be collected, and the collected water can be collected for cooling. Therefore, the collection of overflow water and cooling can be carried out efficiently.

[0011] (4) In any of (1) to (3) above, one end of the multiple linear bodies may be bundled together at the binding portion, and the other end of the multiple linear bodies may be an open portion that is not bound. In the step of cooling the water, water may be poured over the portion between the binding portion and the open portion of the multiple linear bodies. In this case, by pouring water over the portion between the binding portion and the open portion of the multiple linear bodies, the water can be dispersed more effectively. Therefore, the water can be cooled more effectively.

[0012] (5) The concrete cooling system relating to this disclosure cools poured concrete. The concrete cooling system comprises a cooling pipe embedded in the concrete, a cooling device for cooling water used to cool the concrete, and a hose for introducing the water cooled by the cooling device into the cooling pipe. The cooling device has a plurality of linear bodies to which water used to cool the concrete is applied, and cools the water by dispersing it across the plurality of linear bodies.

[0013] In this concrete cooling system, a cooling device cools the water used to cool the concrete, and the cooled water is then introduced into cooling pipes embedded in the concrete via hoses. The concrete is cooled by the introduction of the cooled water into the cooling pipes. In the cooling device, the water used to cool the concrete is poured onto multiple linear bodies, and the water is cooled by dispersing it across the multiple linear bodies. Similar to the concrete cooling method described above, when water is dispersed into droplets on multiple linear bodies, the surface area of ​​the water relative to the air increases, causing the water to cool by evaporation. Therefore, since only multiple linear bodies are needed as a cooling device to cool the water, large-scale equipment can be avoided. Consequently, the configuration for water cooling can be simplified, costs can be reduced, and installation can be easily performed. [Effects of the Invention]

[0014] According to this disclosure, the configuration can be simplified, costs can be reduced, and installation can be made easier. [Brief explanation of the drawing]

[0015] [Figure 1] Figure 1 shows an example of a concrete structure to which the concrete cooling method according to the embodiment is applied. [Figure 2] Figure 2 is a plan view showing the concrete structure in Figure 1. [Figure 3] Figure 3 is a perspective view showing the cooling device of the concrete cooling system according to this embodiment. [Figure 4] Figure 4 schematically shows how water is applied to multiple linear elements of the cooling device shown in Figure 3. [Figure 5] Figures 5(a) and 5(b) show examples of concrete cooling methods used in the construction of concrete structures. [Modes for carrying out the invention]

[0016] Hereinafter, embodiments of a concrete cooling method and a concrete cooling system according to the present disclosure will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and redundant descriptions will be omitted as appropriate. The drawings may be drawn in a simplified or exaggerated manner for ease of understanding, and dimensional ratios and the like are not limited to those described in the drawings.

[0017] FIG. 1 is a cross-sectional view showing a concrete structure 1 to which the concrete cooling method according to the embodiment is applied. For example, the concrete structure 1 is a pier of a road bridge. For example, the concrete structure 1 is constructed on water. The concrete structure 1 includes a top slab 2, a column portion 3 extending upward from the top slab 2, and a beam portion 4 located at the upper end of the column portion 3. For example, the concrete structure 1 further includes a steel sheet pile 5 located around the top slab 2.

[0018] The top slab 2 is constructed inside the steel sheet pile 5 in plan view. The column portion 3 is constructed, for example, by lift division. Thereby, the temperature rise of the concrete C in the column portion 3 can be suppressed. The column portion 3 has, for example, a first lift portion E1, a second lift portion E2, and a third lift portion E3.

[0019] The first lift portion E1, the second lift portion E2, and the third lift portion E3 are arranged in this order from bottom to top. The beam portion 4 has an overhanging portion 4b that projects horizontally with respect to the upper end of the column portion 3. For example, the cross-section of the beam portion 4 along the horizontal plane is larger than the cross-section of the column portion 3 along the horizontal plane and larger than the cross-section of the top slab 2 along the horizontal plane.

[0020] For example, the concrete structure 1 is constructed at sea. In this case, as a measure against salt damage, it may be important not to cause cracks in the concrete C. In placing the concrete C in a high-temperature environment, it may be important not to generate thermal cracks. Particularly in the beam portion 4 having the largest cross-section along the horizontal plane, there is a concern that thermal cracks may occur. Therefore, the concrete structure 1 includes a concrete cooling system 10 for cooling the placed concrete C.

[0021] The concrete cooling system 10 includes a cooling pipe 11 embedded in the concrete C, a cooling device 20 for cooling water for cooling the concrete C, and a hose 12 for putting the water W1 cooled by the cooling device 20 into the cooling pipe 11. The concrete cooling system 10 has, for example, a plurality of cooling pipes 11.

[0022] The cooling pipe 11 is, for example, a sheath pipe. During the curing of the concrete C, the upper end of the cooling pipe 11 is open, and the concrete C is cooled by putting water W1 into the cooling pipe 11 through this opening. The water in the cooling pipe 11 is warmed by the heat of the concrete C and overflows from the opening at the upper end of the cooling pipe 11.

[0023] For example, the concrete cooling system 10 includes a recovery pump 13 for pumping up the water overflowing from the cooling pipe 11 to the upper surface 4c of the beam portion 4, and a transport pipe 14 for sending the water pumped up by the recovery pump 13 to the cooling device 20. Further, the concrete cooling system 10 includes a formwork 18 that surrounds a portion where a plurality of cooling pipes 11 are provided on the upper surface 4c of the beam portion 4 in plan view.

[0024] Since the pH of the water overflowing from the cooling pipe 11 to the upper surface 4c of the beam portion 4 is greater than 7, it is not preferable to discharge this water to the outside of the concrete structure 1. On the other hand, the concrete cooling system 10 according to the present embodiment can prevent the water overflowing from the cooling pipe 11 to the upper surface 4c of the beam portion 4 from being discharged outside the concrete structure 1 by having the formwork 18. For example, in plan view, the formwork 18 is arranged along the outer periphery of the upper surface 4c of the beam portion 4. The height of the formwork 18 protruding upward from the upper surface 4c is, for example, about 20 cm.

[0025] Figure 2 is a plan view of the concrete structure 1. As shown in Figures 1 and 2, the shape of the concrete structure 1 in plan view is, for example, oval. The opening of the embedded cooling pipe 11 is exposed at the upper end of the concrete structure 1 (beam section 4). The cooling pipe 11 extends from the upper surface 4c of the beam section 4 to the lower side of the beam section 4.

[0026] As mentioned above, the cross-section of beam 4 along the horizontal plane is larger than the cross-section of other parts of the concrete structure 1 along the horizontal plane. Therefore, beam 4 generates more heat than other parts of the concrete structure 1. Consequently, in a plan view, the number of cooling pipes 11 embedded in beam 4 is greater than the number of cooling pipes 11 embedded in other parts of the concrete structure 1 (column 3). This allows for more effective cooling of the beam 4, which has a larger cross-section.

[0027] The central part of the beam section 4 tends to become hotter during the curing of the concrete C than the ends of the beam section 4. Therefore, the number of cooling pipes 11 in the central part of the beam section 4 is greater than the number of cooling pipes 11 at the ends of the beam section 4. This allows for more effective cooling of the central part of the beam section 4, which tends to become hotter.

[0028] For example, in a plan view of the beam section 4, multiple cooling pipes 11 are arranged in a staggered pattern. For example, the upper surface 4c of the beam section 4 is inclined with respect to the horizontal plane. In this case, water overflowing from the cooling pipes 11 onto the upper surface 4c of the beam section 4 flows downwards from the inclined upper surface 4c. The recovery pump 13 is positioned, for example, on the lower part of the inclined upper surface 4c. In this case, the water overflowing onto the upper surface 4c flows towards the recovery pump 13, allowing the recovery pump 13 to efficiently recover the water.

[0029] Figure 3 is a perspective view showing the cooling device 20. As shown in Figures 1 and 3, the cooling device 20 is located at a distance from the concrete structure 1. For example, the cooling device 20 is placed on a platform (not shown) that surrounds the concrete structure 1 in a plan view. For example, the distance from where the cooling device 20 is located to the concrete structure 1 is approximately 10 m.

[0030] The concrete cooling system 10 includes, for example, a storage section 17 for storing water W1 cooled by a cooling device 20, a pump 16 for pumping up the water W1 stored in the storage section 17, and a transport pipe 19 for sending the water W1 pumped up by the pump 16 to the concrete structure 1.

[0031] The concrete cooling system 10 may have multiple pumps 16. For example, the pumps 16 are 1-inch pumps. The housing 17 is, for example, a notch tank. For example, the capacity of the housing 17 is 1 m³ 3 More than 3m 3 (For example, 2m) 3 The transport pipe 19 is connected to, for example, the hose 12, and the water W1 pumped up by the pump 16 is supplied to the hose 12 via the transport pipe 19.

[0032] The concrete cooling system 10 includes, for example, a water supply means 15 that supplies water to the containment section 17 before the cooling of the concrete C begins. As an example, the water supply means 15 is a water truck. Before the cooling of the concrete C begins, the water supply means 15 supplies water to the containment section 17, and when the concrete C is being cooled, the water contained in the containment section 17 is supplied to the cooling pipe 11 via the hose 12. The water W2 that overflows from the cooling pipe 11 and is recovered by the recovery pump 13 is returned to the containment section 17 through the transport pipe 14 and the cooling device 20. Therefore, since the water can be circulated and cooled by the cooling device 20, it is possible to prevent water from being discharged to the outside of the concrete structure 1.

[0033] The transport pipe 14 includes, for example, a conduit 14b through which water W2, heated by concrete C and overflowing from the cooling pipe 11 and recovered by the recovery pump 13, passes. As an example, the transport pipe 14 includes a plurality of conduits 14b. The water W2 pumped up by the recovery pump 13 passes through one of the plurality of conduits 14b. The conduits 14b are, for example, PVC pipes. The conduits 14b have holes 14c for discharging water W2 from the conduits 14b, and the water W2 is supplied to the cooling device 20 from the holes 14c.

[0034] The cooling device 20 includes, for example, a cooling member 21, which has a plurality of linear bodies 21c onto which water W2 for cooling the concrete C is poured. For example, the cooling member 21 has a binding portion 21b located at one end of the plurality of linear bodies 21c. The binding portion 21b is the part that supports the plurality of linear bodies 21c at one end of the cooling member 21.

[0035] Multiple linear bodies 21c are bundled at one end by a binding portion 21b, while the other ends of the multiple linear bodies 21c are left as open portions 21d that are not bound. The cooling member 21 is arranged such that, for example, the binding portion 21b faces upward and the multiple linear bodies 21c face downward. However, the orientation of the cooling member 21 is not particularly limited. As an example, the cooling member 21 is a broom. In this case, for example, a broom used for cleaning on site can be effectively utilized as the cooling member 21.

[0036] The cooling device 20 has, for example, a support member 22 that supports the cooling members 21. The cooling device 20 has, for example, a plurality of cooling members 21, which are arranged in a vertical direction (for example, the vertical direction). Alternatively, the plurality of cooling members 21 may be arranged in a vertical direction along the transport pipe 14 (pipeline 14b). For example, the number of cooling members 21 arranged along the transport pipe 14 is greater than the number of cooling members 21 arranged in the vertical direction. For example, there are five cooling members 21 arranged along the transport pipe 14 and two cooling members 21 arranged in the vertical direction.

[0037] Figure 4 is a schematic diagram showing the transport pipe 14 (pipeline 14b) and the cooling member 21. As shown in Figures 3 and 4, the transport pipe 14 may extend horizontally or diagonally. Thus, the direction in which the transport pipe 14 extends is not particularly limited. As mentioned above, water W2 is discharged from the hole 14c, and the discharged water W2 is poured over the linear body 21c of the cooling member 21.

[0038] Water W2 applied to the linear body 21c is dispersed and cooled within the linear body 21c. That is, the water W2 is cooled by dispersing it across multiple linear bodies 21c. Cooling the water W2 generates water W1 for cooling the concrete C. When water W2 is dispersed across multiple linear bodies 21c, the surface area of ​​water W2 relative to the air increases, thereby cooling the water W2.

[0039] Water W2 is dispersed in multiple linear bodies 21c to form droplets, and the water W2, with its increased surface area relative to the air, is cooled by vaporization, thereby obtaining cooled water W1. For example, the temperature of cooled water W1 is 5°C or more and 10°C or less (6°C as an example) lower than the temperature of water W2 before cooling.

[0040] For example, the hardness of the linear body 21c is set to be such that it does not deform under gravity. In this case, the linear body 21c is set to be such that it does not bend under gravity. The material of the linear body 21c may be, for example, a material that breaks when an external force is applied. If the linear body 21c is set to be such that it does not bend under gravity, the water W2 can be dispersed more effectively when it is applied to the linear body 21c, thereby further enhancing the cooling effect of the water W2.

[0041] The linear body 21c is composed of, for example, naturally derived materials. For instance, the linear body 21c may be wood, bamboo, or straw. The linear body 21c may also be a plant branch. When the linear body 21c is composed of natural materials, it can be made readily available. However, the linear body 21c may also be composed of artificially derived materials. For example, the linear body 21c may be made of resin or metal. Thus, a variety of materials can be used for the linear body 21c.

[0042] Next, the concrete cooling method according to this embodiment will be described with reference to Figures 5(a) and 5(b). In the concrete cooling method, the poured concrete C is cooled. In Figures 5(a) and 5(b), the cooling device 20 is omitted from the illustration to avoid complexity. The concrete cooling method according to this embodiment is performed while the concrete structure 1 is being constructed.

[0043] As shown in Figures 3 and 5(a), the cooling device 20 is installed, and construction of the top slab 2 and column section 3 of the concrete structure 1 begins. The cooling device 20 is installed, for example, on a platform provided around the area where the concrete structure 1 is to be constructed. After the construction of the top slab 2 is completed, the first lift section E1 of the column section 3 is constructed by assembling reinforcing bars on the top slab 2 and pouring concrete C (process of constructing the first lift section E1).

[0044] Next, the second lift section E2 is constructed by assembling reinforcing bars on the first lift section E1, fixing multiple cooling pipes 11 to the reinforcing bars, and pouring concrete C (process of constructing the second lift section). For example, the cooling pipes 11 are fixed to the reinforcing bars by being tied to them with cable ties. The concrete C is poured in such a way that the upper parts of the cooling pipes 11 are exposed.

[0045] After the concrete C has been poured, the concrete C is cured and cooled (the concrete cooling process). For example, the cooling of the concrete C begins one day after it has been poured. The cooling of the concrete C continues for several days (for example, 5 days).

[0046] At this time, water W1 is continuously supplied to the cooling pipe 11 from above to cool the concrete C, and the water W2 that overflows from the cooling pipe 11 is sent to the cooling device 20 by the recovery pump 13 (process of sending water to the cooling device). In this way, the water that overflows from the cooling pipe 11 during the process of cooling the concrete C is recovered (process of recovering water).

[0047] The cooling device 20 cools the water W2 recovered in the recovery process described above. The cooling device 20 cools the water W2 sent from the recovery pump 13 by applying it to a plurality of linear bodies 21c (water cooling process). At this time, the water W2 used to cool the concrete C is applied to the plurality of linear bodies 21c, and the water W2 is cooled by dispersing the water W2 on the plurality of linear bodies 21c. The water W2 is applied to the portion between the binding portion 21b and the open portion 21d of the plurality of linear bodies 21c.

[0048] As described above, the water used to cool the concrete C is cooled. The cooled water W1 is stored in the storage section 17 and also pumped up by the pump 16 and put back into the cooling pipe 11 through the hose 12. In other words, in the cooling process, the cooled water W1 is put into the cooling pipe 11 embedded in the concrete C to cool the concrete C (concrete cooling process). As described above, water is circulated using the concrete cooling system 10.

[0049] The second lift section E2 is completed after the cooling and curing of the concrete C described above is finished. As shown in Figures 3, 5(a), and 5(b), the third lift section E3 is constructed by assembling reinforcing bars on the second lift section E2, fixing multiple cooling pipes 11 to the reinforcing bars, and pouring concrete C (process of constructing the third lift section).

[0050] The cooling pipe 11 used when constructing the third lift section E3 is connected to the upper end of the cooling pipe 11 used when constructing the second lift section E2. As a result, the internal space of the cooling pipe 11 used when constructing the third lift section E3 is in communication with the internal space of the cooling pipe 11 used when constructing the second lift section E2.

[0051] As described above, the cooling pipe 11 is fixed and concrete C is poured to construct the third lift section E3. The construction of the third lift section E3 is carried out in the same way as the construction of the second lift section E2. When constructing the third lift section E3, the concrete C is cured and cooled at the same time as when constructing the second lift section E2 (concrete cooling process). The method of cooling the concrete C when constructing the third lift section E3 is the same as the method of cooling the concrete C when constructing the second lift section E2, so the explanation is omitted.

[0052] After the concrete C has cooled and cured, grout is filled into the internal spaces of the cooling pipes 11 used during the construction of the third lift section E3 and the second lift section E2. The third lift section E3 is then completed after the grout has hardened.

[0053] As shown in Figures 1 and 3, the beam section 4 is constructed by assembling reinforcing bars on the third lift section E3, fixing multiple cooling pipes 11 to the reinforcing bars, and pouring concrete C (beam section construction process). The construction of the beam section 4 is carried out in the same manner as the construction of the second lift section E2 and the third lift section E3 described above.

[0054] Cooling of the concrete C during the construction of the beam section 4 is performed after the concrete C of the beam section 4 has been poured. Before cooling the concrete C, formwork 18 is installed around the outer perimeter of the upper surface 4c in a plan view (formwork installation step). That is, formwork 18 is installed around the upper end of the cooling pipe 11 in the concrete C, and the water that overflows into the formwork 18 is collected (overflow water collection step). Water W1 is continuously supplied from the hose 12 to the cooling pipe 11 to cool the concrete C, and the water W2 that overflows from the cooling pipe 11 and is collected inside the formwork 18 is collected by the recovery pump 13 and sent to the cooling device 20 (water collection step, water sent to cooling device step).

[0055] The cooling device 20 cools the water W2 sent from the recovery pump 13 by directing it onto multiple linear bodies 21c (water cooling process). Then, the pump 16 pumps up the cooled water W1 and puts it back into the cooling pipe 11 from the hose 12 to cool the concrete C. After the concrete C has cooled, grout is filled into the cooling pipe 11 and allowed to harden. After the concrete C has cured, the beam section 4 is completed, and the construction of the concrete structure 1 is completed.

[0056] Next, the effects obtained from the concrete cooling method and concrete cooling system 10 according to this embodiment will be described. In the concrete cooling method and concrete cooling system 10 according to this embodiment, in the step of cooling water, water W2 for cooling concrete C is cooled, and the cooled water W1 is put into a cooling pipe 11 embedded in concrete C. By putting the cooled water W1 into the cooling pipe 11, concrete C can be cooled. Therefore, cracking of concrete C can be prevented.

[0057] The water W2 used to cool the concrete C is poured over multiple linear bodies 21c and cooled by dispersing within the multiple linear bodies 21c. When the water W2 disperses within the multiple linear bodies 21c, the surface area of ​​the water W2 relative to the air increases, thereby cooling the water W2. That is, the water W2, having dispersed into droplets within the multiple linear bodies 21c and with a larger surface area relative to the air, is cooled by vaporization. Therefore, since only multiple linear bodies 21c are needed to cool the water W2, large-scale equipment can be eliminated. In this embodiment, electrical equipment for cooling the water W2 can be eliminated. Thus, the configuration for cooling the water W2 can be simplified, costs can be reduced, and installation can be easily performed.

[0058] In this embodiment, the concrete cooling method includes a step of recovering the water W2 that overflows from the cooling pipe 11 during the step of cooling the concrete C. In the step of cooling the water, the water W2 recovered in the recovery step is cooled. In this case, by recovering and cooling the water W2 that overflows from the cooling pipe 11, the water W2 can be reused and circulated for cooling.

[0059] In this embodiment, the concrete cooling method includes a step of installing a formwork 18 around the upper end of the cooling pipe 11 in the concrete C and collecting the water W2 that overflows inside the formwork 18. In the collection step, the water W2 collected inside the formwork 18 is collected. In this case, the water W2 that overflows inside the formwork 18 can be collected, and the collected water W2 can be collected for cooling. Therefore, the collection of overflowed water W2 and cooling can be carried out efficiently.

[0060] In this embodiment, one end of each of the multiple linear bodies 21c is bundled at a binding portion 21b, and the other end of each of the multiple linear bodies 21c is an open portion 21d that is not bound. In the water cooling process, water W2 is poured over the portion between the binding portion 21b and the open portion 21d of the multiple linear bodies 21c. In this case, by pouring water W2 over the portion between the binding portion 21b and the open portion 21d of the multiple linear bodies 21c, the water W2 can be dispersed more effectively. Therefore, the water W2 can be cooled more effectively.

[0061] Embodiments of the concrete cooling method and concrete cooling system 10 according to this disclosure have been described above. However, the present invention is not limited to the embodiments described above. That is, it will be readily apparent to those skilled in the art that the present invention can be modified and altered in various ways within the scope of the gist described in the claims. In other words, the configuration, shape, size, number, material and arrangement of each part of the concrete cooling system, as well as the content and sequence of steps of the concrete cooling method, can be appropriately changed within the scope of the gist described above.

[0062] For example, the embodiments described above described a concrete cooling system 10 and a concrete cooling method that circulate water. However, the concrete cooling system and concrete cooling method do not necessarily involve circulating water. The embodiments described above described an example of cooling concrete C of a concrete structure 1 having a beam section 4 whose upper surface 4c is inclined with respect to the horizontal plane. However, the upper surface of the beam section of the concrete structure does not necessarily have to be inclined with respect to the horizontal plane, and the concrete structure targeted by the concrete cooling system and concrete cooling method may be a structure different from concrete structure 1. The concrete structure targeted by the concrete cooling system and concrete cooling method does not necessarily have to be a bridge pier of a road bridge built on water, and the concrete cooling system and concrete cooling method are applicable to various concrete structures. [Explanation of Symbols]

[0063] 1...Concrete structure, 2...Top slab, 3...Column section, 4...Beam section, 4b...Overhang section, 4c...Top surface, 5...Steel pipe sheet pile, 10...Concrete cooling system, 11...Cooling pipe, 12...Hose, 13...Recovery pump, 14...Conveyor pipe, 14b...Pipeline, 14c...Hole, 15...Water supply means, 16...Pump, 17...Housing section, 18...Formwork, 19...Conveyor pipe, 20...Cooling device, 21...Cooling member, 21b...Binding section, 21c...Linear body, 21d...Open section, 22...Support member, C...Concrete, E1...First lift section, E2...Second lift section, E3...Third lift section, W1, W2...Water.

Claims

1. A concrete cooling method for cooling poured concrete, A step of cooling the water used to cool the concrete, The step of cooling the water involves placing the cooled water into a cooling pipe embedded in the concrete to cool the concrete, Equipped with, In the step of cooling the water, the water for cooling the concrete is poured onto a plurality of linear bodies, and the water is cooled by dispersing the water on the plurality of linear bodies. Concrete cooling methods.

2. The process of cooling the concrete includes a step of recovering the water that overflows from the cooling pipe, In the step of cooling the water, the water recovered in the recovery step is cooled. The concrete cooling method according to claim 1.

3. The concrete comprises a step of installing formwork around the upper end of the cooling pipe and collecting the overflowing water inside the formwork, In the aforementioned recovery process, the water accumulated inside the mold is recovered. The concrete cooling method according to claim 2.

4. The ends of the multiple linear bodies are bundled together at the binding portion, while the other ends of the multiple linear bodies are left as open portions that are not bound together. In the step of cooling the water, water is poured over the portion between the binding portion and the open portion of the plurality of linear bodies. A concrete cooling method according to any one of claims 1 to 3.

5. A concrete cooling system for cooling poured concrete, The cooling pipe embedded in the aforementioned concrete, A cooling device for cooling the water used to cool the concrete, The cooling device includes a hose into which the cooled water is introduced into the cooling pipe, Equipped with, The cooling device has a plurality of linear bodies to which water for cooling the concrete is poured, and the water is cooled by dispersing the water across the plurality of linear bodies. Concrete cooling system.

Images