Temperature-adjustable template for mass concrete member and forming method

Abstract

The invention relates to the field of concrete construction and production, in particular to a temperature-adjustable formwork for a mass concrete member and a forming method. A temperature adjusting formwork for a mass concrete member comprises a face plate and an inner plate, and reinforcing ribs which are arranged in parallel at intervals are arranged on the side face of the face plate; the inner plate is provided with a connecting rod in abutting contact with the reinforcing ribs so that the inner plate and the reinforcing ribs can be arranged at intervals, the extending direction of the connecting rod is perpendicular to the extending direction of the reinforcing ribs, and a containing space used for containing heat preservation materials is formed between the panel and the inner plate. By arranging the panel and the inner plate, the containing space is conveniently formed between the inner plate and the panel, heat preservation is conveniently conducted on concrete by storing a heat preservation material in the containing space, and cracking caused by the too large temperature difference between the concrete and the environment temperature is avoided; therefore, the problem that in the prior art, in the concrete pouring process, due to cement hydration heat, the temperature difference between the concrete and the environment is too large, and consequently the concrete cracks easily is solved.

Description

Technical Field

[0001] This invention relates to the field of concrete construction production, and in particular to a temperature-adjustable template and molding method for large-volume concrete components. Background Technology

[0002] The heat of hydration in concrete is the heat released when cement reacts chemically with water. This process causes a significant increase in the internal temperature of the concrete. When the temperature difference between the inside and outside of the concrete is too large, the resulting thermal stress may reduce the tensile strength of the material, leading to cracks.

[0003] Current technologies typically involve pre-embedding cooling water pipes within the concrete structure and circulating cold water to reduce the temperature rise caused by the heat of cement hydration, thereby minimizing the temperature difference between the inside and outside and preventing cracks. However, the cooling water pipes themselves (usually steel or HDPE pipes), along with the connected pumps, water tanks, and distributors, represent a significant expense. On-site pipe laying requires substantial manpower and often involves overlapping work with rebar tying, making construction complex and time-consuming. After cooling is complete, for embedded pipes (which are typically non-recoverable), the cost is sunk; for pull-out pipes, while some costs can be recovered, the removal process may damage the concrete surface, and grouting to seal the pipe holes incurs additional costs. Summary of the Invention

[0004] In view of this, the present invention provides a temperature-adjustable template for large-volume concrete components to solve the problem in the prior art that the concrete is prone to cracking due to the large temperature difference between the concrete and the environment caused by the heat of hydration of cement during the concrete pouring process; the present invention also provides a method for forming large-volume concrete components.

[0005] A temperature-regulating template for large-volume concrete components includes a panel for abutting against the concrete component. The panel has parallel, spaced-apart reinforcing ribs arranged horizontally or vertically on its side facing away from the concrete component. The template also includes an inner panel with connecting rods that abut against the reinforcing ribs, allowing the inner panel and reinforcing ribs to be spaced apart. The connecting rods are parallel and spaced-apart, with their extension directions perpendicular to the extension directions of the reinforcing ribs. The side edges of the panel and / or inner panel have side flanges for sealing the side gaps between the panel and inner panel. The bottom edges of the panel and / or inner panel have bottom flanges for sealing the bottom gaps between the panel and inner panel, forming a receiving space between the panel and inner panel for accommodating insulation material. The bottom of the template also has a drain valve connecting to the bottom of the receiving space.

[0006] Furthermore, the inner plate includes multiple sub-inner plates, and multiple connecting rods are provided. Each sub-inner plate has a connecting rod on both sides, and the edge of the sub-inner plate is welded and fixedly connected to the connecting rod.

[0007] Furthermore, the inner plate is provided with a side folded edge, which is fixedly connected to the connecting rod by fasteners.

[0008] Furthermore, a scaffold is provided on the side of the connecting rod away from the panel, and a walking passage is provided on the scaffold and at the upper end of the temperature-regulating template.

[0009] Furthermore, the scaffolding includes vertically arranged vertical support rods that correspond one-to-one with the connecting rods and horizontal support rods connecting the vertical support rods and the connecting rods, with the walking passage located on the uppermost horizontal support rod.

[0010] Furthermore, at least one of the reinforcing ribs and connecting rods is provided with a magnetic attracting element for magnetically attracting another component.

[0011] Furthermore, the length of the connecting rod is greater than the height of the front panel and the inner panel, and the heights of the front panel and the inner panel are equal.

[0012] Furthermore, the reinforcing ribs are arranged horizontally, and the connecting rods are arranged vertically.

[0013] The beneficial effects of the temperature-regulating template for large-volume concrete components in this invention are as follows: The invention facilitates the formation of a receiving space between the front and inner panels by setting up a front panel and an inner panel. Placing insulation material in this space allows for easy insulation of the concrete, preventing excessive temperature differences between the concrete and the environment that could lead to cracking. The addition of reinforcing ribs and connecting rods strengthens the structure and creates a complete space between the inner and outer panels through a crisscrossing arrangement. When liquid insulation material needs to be injected, it can be injected from one side to fill the entire receiving space, reducing workload. The side and bottom folds facilitate sealing of the receiving space. Drain valves facilitate the discharge of liquid insulation material during injection. Scaffolding facilitates construction and ground placement. This solves the problem in existing technologies where the heat of hydration during concrete pouring causes excessive temperature differences between the concrete and the environment, leading to cracking.

[0014] A method for forming large-volume concrete components involves using a temperature-regulating template for the aforementioned large-volume concrete components and assembling it before pouring, keeping the panel facing the concrete component to be formed. Before pouring or before setting, insulation material is filled into the space between the inner panel and the panel. When filling the insulation material, if the ambient temperature is lower than a first threshold value but higher than a second threshold value, a liquid insulation material with a temperature higher than the ambient temperature is injected into the space. If the ambient temperature is lower than the second threshold value, a plate-shaped solid insulation material is inserted into the space.

[0015] Furthermore, when using solid insulation materials, insert the solid insulation materials vertically.

[0016] The beneficial effects of the large-volume concrete component molding method in this invention are as follows: Using the aforementioned temperature-regulating template for large-volume concrete components, after assembly, a space is formed between the inner and outer panels. To reduce the temperature difference between the concrete and the environment, insulation material is filled into this space. Since insulation is required during the concrete molding process, a certain period of time is needed. When the temperature is below the first threshold but above the second threshold, the temperature is relatively high, so filling with liquid insulation material can reduce the temperature difference. Furthermore, because the temperature is relatively high, the liquid insulation material cools down relatively slowly, maintaining the temperature for a period of time. When the temperature is below the second threshold, it indicates a relatively low temperature. If liquid insulation material is still used, it may cool down in a short time, failing to achieve the insulation effect. Therefore, solid insulation material is used to maintain a temperature slightly higher than the ambient temperature, thus solving the problem in the prior art where the heat of hydration of cement during concrete pouring causes a large temperature difference between the concrete and the environment, leading to easy cracking of the concrete. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an embodiment of the temperature-adjustable template for large-volume concrete components in this invention. Figure 2 This is a cross-sectional view of an embodiment of the temperature-adjustable template for large-volume concrete components in this invention.

[0019] The labels in the diagram represent the following: 1. Panel; 11. Side fold; 12. Bottom fold; 13. Reinforcing rib; 21. Inner panel; 22. Connecting rod; 23. Reinforcing column; 31. Horizontal support rod; 32. Vertical support rod; 4. Walkway panel; 5. Railing; 6. Accommodation space; 7. Drain valve. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0021] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0022] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0023] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] In the following description, suffixes such as "module," "part," or "unit" used to denote elements are used only for the convenience of the description of the invention and have no specific meaning in themselves. Therefore, "module" and "part" can be used interchangeably.

[0026] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0027] In the embodiment of the temperature-adjustable template for large-volume concrete components (hereinafter referred to as temperature-adjustable template) in this invention: In this embodiment, the temperature-adjustable template is used for the molding and curing of concrete components during the pouring process. The shape of the concrete component is defined by the panel, and the space formed between the inner plate and the panel is filled with thermal insulation material, so that the temperature of the edge of the concrete component can be higher than the ambient temperature, thereby reducing the temperature difference between the core temperature and the edge temperature of the concrete component and reducing the probability of cracking.

[0028] like Figure 1 and Figure 2 As shown, specifically, the temperature-adjustable template includes a panel 1 and an inner panel arranged at intervals. The panel 1 is used to contact the concrete component to be formed and define the shape of the concrete component. Since the concrete component has not formed a fixed shape in the early stage of pouring, the fluid concrete tends to expand outward. To prevent the panel 1 from deforming, horizontally spaced reinforcing ribs 13 are arranged on the side of the panel 1 away from the concrete component. In this embodiment, multiple reinforcing ribs 13 are provided, and the starting and ending positions are located at the side edges of the panel 1, respectively, to strengthen the entire panel 1. Alternatively, in other embodiments, the reinforcing ribs can also be arranged vertically at intervals. However, it should be noted that whether arranged horizontally or vertically, the structural strength must be guaranteed, and there should be no cross-interference between adjacent reinforcing ribs. Alternatively, in other embodiments, the reinforcing ribs can be shorter than the length of the panel.

[0029] An inner panel is also provided on one side of the panel 1, located near the reinforcing rib 13. The inner panel includes a sub-inner panel 21 and connecting rods 22, wherein the connecting rods 22 are rectangular steel pipes, arranged vertically at intervals, and perpendicular to the reinforcing rib 13. The edges of the sub-inner panels 21 are welded and fixed to the sides of the connecting rods 22, and each sub-inner panel 21 has a corresponding connecting rod 22 on both sides. The length of the connecting rod 22 is greater than the height of the sub-inner panel 21, so that the top of the connecting rod 22 extends beyond the sub-inner panel 21. At this time, the sub-inner panels 21 and the connecting rods 22 together form the inner panel. The connecting rods 22 of the inner panel protrude from the sub-inner panel 21, forming a plate-like structure with protruding ends. After the inner panel and the panel 1 are installed together, the connecting rods 22 abut against the reinforcing rib 13. Since the connecting rods 22 and the reinforcing rib 13 are perpendicular to each other, the space between the inner panel and the panel 1 is interconnected, thus forming a space 6 for filling insulation material between the inner panel and the panel 1. To facilitate the drainage of water and other liquids from the containment space 6, a drain valve 7 connected to the containment space 6 is installed at the bottom of the temperature-adjustable template, through which water can be drained.

[0030] To seal the accommodating space 6, the sides and bottom of the inner panel need to be sealed. Connecting rods 22 are located on the left and right edges of the inner panel, and there is a certain gap between the connecting rods 22 and the panel 1. Therefore, side flanges 11, bent towards the inner panel, are also provided on the left and right sides of the panel 1. Simultaneously, a bottom flange 12 is provided at the bottom of the panel 1, and correspondingly, a bottom flange 12 is also provided at the bottom of the inner panel, thus ensuring a reliable connection between the sides and the bottom without leakage. During use, bolts are used to secure the side flanges 11 and connecting rods 22, and bolts are also used to secure the bottom flange 12, preventing the inner panel and panel 1 from expanding apart after insulation material is filled. The bolt connection allows the inner panel and panel 1 to be disassembled for cleaning and maintenance after use. Furthermore, the disassembly capability reduces the weight during transfer, facilitating reuse. Of course, in other embodiments, connecting rods may not be used on the inner panel; instead, additional side flanges may be provided on the sides of the inner panel. Alternatively, in other implementations, the inner panel and the front panel can be welded together, but in this case, they cannot be disassembled, the interior is not easy to clean, and reuse is more troublesome.

[0031] In addition, for convenient temporary fixation, magnetic blocks are provided on the connecting rod 22 to magnetically attract the reinforcing rib 13, allowing the panel 1 and the inner panel to be temporarily connected together. The magnetic attraction also creates a certain suction force between the inner panel and the panel 1 in the middle position, preventing them from expanding and deforming in the center after the liquid insulation material is filled into the accommodating space 6. Of course, in other embodiments, magnetic blocks can be provided on the reinforcing rib 13, or magnetic blocks that attract each other can be provided on both the panel 1 and the inner panel. Alternatively, in other embodiments, the panel and inner panel can be thickened, in which case magnetic blocks are not required.

[0032] To facilitate construction, scaffolding is installed on the side of the inner panel away from panel 1. Specifically, the scaffolding includes horizontal support rods 31 and vertical support rods 32. The vertical support rods 32 are correspondingly installed with the connecting rods 22, and are arranged parallel and spaced equidistantly from each other. Multiple horizontal support rods 31 are arranged parallel and spaced from top to bottom between the connecting rods 22 and the vertical support rods 32. A walkway 4 and railing 5 are installed on the uppermost horizontal support rod 31, defining a passageway for personnel to perform insulation material filling and other pouring operations. The scaffolding also ensures that the temperature-adjustable formwork can be placed stably on the ground. Furthermore, to improve the structural strength of the inner panel, reinforcing columns 23 are installed at the bottom of the inner panel, extending laterally to enhance its structural strength. These reinforcing columns 23 are fixedly connected to the connecting rods 22.

[0033] After concrete components are poured, they generate heat of hydration, causing the concrete temperature to be higher than the ambient temperature. While the temperature of the parts in contact with the environment is not significantly different from the ambient temperature, the core temperature of the concrete component will be much higher due to heat accumulation, resulting in a large temperature difference and causing the concrete component to crack. Therefore, it is necessary to raise or maintain the temperature of the edges of the concrete component. Thus, in this embodiment, the space 6 between the inner panel and the outer panel 1 can be filled with thermal insulation material.

[0034] When selecting insulation materials, since the core temperature of the concrete component is relatively small while the ambient temperature varies considerably, the insulation material can be chosen based on the ambient temperature. This embodiment provides two insulation materials: water and insulation cotton. When filling the insulation material, if the ambient temperature is below a first threshold but above a second threshold, water with a temperature higher than the ambient temperature is injected into the containing space 6; if the ambient temperature is below the second threshold, a plate-shaped solid insulation material is inserted into the containing space 6. In other words, when the temperature is slightly higher, water with a temperature higher than the ambient temperature is injected, resulting in a smaller temperature difference between the water and the ambient temperature, slower cooling, and longer insulation duration. However, if the ambient temperature is too low, the water cools down faster. In this case, insulation cotton can also be used, made into a plate shape and inserted vertically into the containing space 6. It is important to note that the size of the insulation cotton should not exceed the space between two adjacent connecting rods 22. Due to the porous insulation properties of the insulation cotton, the heat emitted by the concrete is stored within the space enclosed by the insulation cotton, separating the concrete component from the environment and preventing excessive temperature differences. Alternatively, in other embodiments, other insulation materials can be selected, such as adding other solvents to the water for rust prevention, or using plastic boards as solid insulation materials. Alternatively, in other embodiments, warm water can be continuously injected into the containment space, while simultaneously draining the water from the containment space through a drain valve, thereby reducing the temperature of the edge portion of the concrete component.

[0035] In an embodiment of the method for forming large-volume concrete components (hereinafter referred to as the component forming method) of the present invention: In the component forming method, using the structure of the above-described embodiment of the temperature-adjustable template for large-volume concrete components, the template is first assembled, with the panel facing the concrete component to be formed. Before pouring, insulation material is filled into the space between the inner panel and the outer panel. The specific type of insulation material used can be selected according to the insulation material selection in the above embodiment, and will not be repeated here. Of course, in other embodiments, the insulation material can also be filled after pouring and before setting.

[0036] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A temperature-regulating template for large-volume concrete components, comprising a panel for supporting the concrete component, characterized in that: The panel has parallel, spaced reinforcing ribs on its side facing away from the concrete component. The reinforcing ribs are arranged horizontally or vertically. The temperature-regulating template also includes an inner plate with connecting rods that abut against the reinforcing ribs to space the inner plate and the reinforcing ribs. The connecting rods are arranged parallel and spaced apart, and their extension directions are perpendicular to the extension directions of the reinforcing ribs. The side edges of the panel and / or the inner plate have side folds to seal the side gaps between the panel and the inner plate. The bottom edges of the panel and / or the inner plate have bottom folds to seal the bottom gaps between the panel and the inner plate, thus forming a space between the panel and the inner plate for accommodating insulation material. The bottom of the temperature-regulating template also has a drain valve connected to the bottom of the space.

2. The temperature-regulating template for large-volume concrete components according to claim 1, characterized in that: The inner plate includes multiple sub-inner plates, and multiple connecting rods are provided. Each sub-inner plate has a connecting rod on both sides, and the edge of the sub-inner plate is welded and fixedly connected to the connecting rod.

3. The temperature-regulating template for large-volume concrete components according to claim 2, characterized in that: The inner plate is provided with a side folded edge, which is fixedly connected to the connecting rod by fasteners.

4. The temperature-regulating template for large-volume concrete components according to claim 2 or 3, characterized in that: A scaffold is also provided on the side of the connecting rod away from the panel, and a walking passage is also provided on the scaffold and at the upper end of the temperature regulating template.

5. The temperature-regulating template for large-volume concrete components according to claim 4, characterized in that: The scaffolding includes vertically arranged vertical support rods that correspond one-to-one with the connecting rods and horizontal support rods connecting the vertical support rods and the connecting rods. The walking passage is located on the uppermost horizontal support rod.

6. The temperature-regulating template for large-volume concrete components according to claim 3, characterized in that: At least one of the reinforcing ribs and connecting rods is provided with a magnetic attractor for magnetically attracting another component.

7. The temperature-regulating formwork for large-volume concrete components according to any one of claims 1-3, characterized in that: The length of the connecting rod is greater than the height of the front panel and the inner panel, and the height of the front panel and the inner panel are equal.

8. The temperature-regulating formwork for large-volume concrete components according to any one of claims 1-3, characterized in that: The reinforcing ribs are arranged horizontally, and the connecting rods are arranged vertically.

9. A method for forming large-volume concrete components, characterized in that: Before pouring, the large-volume concrete component temperature-regulating template as described in any one of claims 1-8 is used and assembled, with the panel facing the concrete component to be formed. Before pouring or before setting, insulation material is filled into the space between the inner panel and the panel. When filling the insulation material, if the ambient temperature is lower than the first threshold value but higher than the second threshold value, liquid insulation material with a temperature higher than the ambient temperature is injected into the space. If the ambient temperature is lower than the second threshold value, plate-shaped solid insulation material is inserted into the space.

10. The method for forming large-volume concrete components according to claim 9, characterized in that: When using solid insulation material, insert it vertically.

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