Concrete winter curing structure

Abstract

The utility model relates to the technical field of concrete curing, in particular to a concrete winter curing structure. The concrete winter curing structure comprises a pre-buried pipe fitting pre-buried in concrete and covering and protecting cloth used for covering the surface of the concrete. According to the concrete winter curing structure provided by the utility model, on one hand, the heating and curing area of the diversion pipe on the peripheral concrete is increased, and on the other hand, the contact area of the diversion pipe and the concrete is also increased, so that the diversion pipe is placed more stably when the concrete is poured; the water hammer effect generated by the pipeline when steam or hot water flows along the pipeline is eliminated, the embedded flow guide pipe and the branch curved pipe are additionally arranged in the concrete and can serve as reinforcing steel bars to be combined with the concrete in a pouring area, and the flow guide pipe and the branch curved pipe can work cooperatively; the flow guide pipes and the branch curved pipes can bear tensile force and shear force, and the defects of concrete in the aspects are overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete maintenance technical field especially relates to a concrete winter maintenance structure. BACKGROUND

[0002] Concrete in winter construction, low temperature environment can significantly delay cement hydration reaction, lead to concrete strength development slowly, be frozen easily, even produce crack, seriously influence engineering quality and durability. The traditional winter maintenance method mainly includes external heating (such as electric blanket, steam heating) and covering insulation material (such as straw mat, plastic film). However, these methods have many limitations: 1, low heating efficiency: external heating equipment energy consumption is high, and heat transfer is uneven, and temperature difference stress appears in the interior of concrete, and cracking is caused;2, poor insulation effect: single covering layer is difficult to effectively isolate cold air, and heat loss is fast, and concrete long-term suitable temperature cannot be maintained.

[0003] In recent years, part of technology attempts to pass in steam or hot water through pre-embedded pipeline and carries out internal heating, but still has the following problems:

[0004] 1, straight pipe type pre-embedded pipe and concrete contact area is small, and heating efficiency is low, and pipe vibration even rupture is caused due to water hammer effect;

[0005] 2, pipeline is only used as heating carrier, does not form mechanical synergy with concrete, and the congenital defect of concrete tensile property cannot be made up.

[0006] Therefore, it is necessary to provide a new concrete winter maintenance structure to solve the above technical problems. INVENTION CONTENTS

[0007] To solve the above technical problems, the utility model provides a concrete winter maintenance structure.

[0008] The concrete winter maintenance structure provided by the utility model includes a pre-embedded pipe piece embedded in concrete and a cover cloth used for covering the surface of concrete;

[0009] The pre-embedded pipe piece includes a flow guide pipe, a plurality of branch curved pipes are installed on the flow guide pipe and are in communication with each other, both ends of the flow guide pipe are fixedly installed with butt vertical pipes used for extending out of concrete, and a connecting flange is fixedly installed on the butt vertical pipe;

[0010] The cover cloth includes a plastic film layer, the plastic film layer is provided with a plurality of layers, a straw mat layer is laid on the plastic film layer, a thermal insulation cotton layer is laid on the straw mat layer, and a rainproof canvas layer is laid on the thermal insulation cotton layer;

[0011] The inner cloth surface of the cover cloth is fixedly installed with a fixed flange.

[0012] Preferably, the branch curved pipe is in a mouth structure, and two joints of the branch curved pipe extend into the flow guide pipe and communicate with each other.

[0013] Preferably, an arc-shaped bearing part is arranged on the lower pipe body of the branch curved pipe, and the arc-shaped bearing part abuts against an arc surface of the lower pipe body of the flow guide pipe.

[0014] Preferably, a spiral rib is fixedly embedded on the flow guide pipe between adjacent branch curved pipes.

[0015] Preferably, the rainproof canvas layer and the uppermost plastic film layer are fixed by nacre sewing thread.

[0016] Preferably, a plurality of fixing flanges are arranged, and the plurality of fixing flanges are fixedly embedded on the lowermost plastic film layer.

[0017] Preferably, non-woven fabric is sewn on the plastic film at a connection between the plastic film layer and the fixing flange.

[0018] Compared with the related art, the concrete winter maintenance structure has the following beneficial effects:

[0019] The branch curved pipe increases the heating and maintenance area of the flow guide pipe on the surrounding concrete, and also increases the contact area between the flow guide pipe and the concrete, so that the flow guide pipe is placed more stably during concrete pouring, and the water hammer effect of the pipeline is eliminated when steam or hot water flows along the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure schematic view of a preferred embodiment of the concrete winter maintenance structure provided by the utility model;

[0021] Figure 2 The structure schematic view of a preferred embodiment of the concrete winter maintenance structure provided by the utility model; Figure 1 The structure schematic view of the embedded pipe shown in the figure;

[0022] Figure 3 The structure schematic view of the embedded pipe shown in the figure; Figure 1 The structure schematic view of the embedded pipe shown in the figure;

[0023] Figure 4 The structure schematic view of the embedded pipe shown in the figure; Figure 3 The cross-sectional structure schematic view of the flow guide pipe and the branch curved pipe connection shown in the figure;

[0024] Figure 5 As Figure 1 The installation structure diagram of the fixed flange of the protective cover is shown in the figure.

[0025] Figure 6 As Figure 5 The structure diagram of the protective cover is shown in the figure.

[0026] The figure label: 100, pre-buried pipe fitting; 101, flow guide pipe; 102, branch curved pipe; 1021, arc-shaped bearing part; 103, spiral rib; 104, butt joint vertical pipe; 105, connecting flange; 200, protective cover; 201, plastic film layer; 202, straw mat layer; 203, thermal insulation cotton layer; 204, rainproof canvas layer; 300, fixed flange. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clearly and clearly, the following will be combined with the drawings and examples to make a further detailed description of the utility model. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0028] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0029] Please refer to Figures 1 to 6 The utility model embodiment provides a concrete winter curing structure, the concrete winter curing structure includes pre-buried pipe fitting 100 pre-buried in concrete and protective cover 200 used for covering in the surface of concrete.

[0030] In the embodiment of the utility model, please refer to Figures 1 to 6 The pre-buried pipe fitting 100 includes the flow guide pipe 101, a plurality of branch curved pipes 102 are installed on the flow guide pipe 101 and are in communication with each other, specifically, the branch curved pipe 102 is in the mouth structure, and the two joints of the branch curved pipe 102 extend into the flow guide pipe 101 and are in communication with each other, the lower pipe body of the branch curved pipe 102 is provided with the arc-shaped bearing part 1021, and the arc-shaped bearing part 1021 is in abutment with the lower pipe body arc surface of the flow guide pipe 101, and the two ends of the flow guide pipe 101 are fixedly installed for extending the butt joint vertical pipe 104 out of concrete, and the butt joint vertical pipe 104 is fixedly installed with the connecting flange 105.

[0031] It is to be noted that: after pouring a layer of concrete, multiple diversion pipes 101 are laid on the concrete, the branch curved pipes 102 are kept erected on the underlying concrete, then the concrete is poured again so that the diversion pipes 101 are completely embedded in the concrete layer, and the butt-joint vertical pipes 104 are located outside the concrete layer, at this time, the butt-joint vertical pipes 104 at one end of the diversion pipes 101 are connected with the steam (or hot water) supply pipeline output end, and the butt-joint vertical pipes 104 at the other end of the diversion pipes 101 are connected with the steam (or hot water) recovery pipeline, so that the steam (or hot water) is transported through the diversion pipes 101, the cement hydration reaction is effectively accelerated, the concrete can still be normally coagulated and hardened in a low-temperature environment, the construction period is shortened, and the early strength growth speed is improved.

[0032] The branch curved pipes 102 increase the heating and curing area of the diversion pipes 101 on the surrounding concrete, and also increase the contact area of the diversion pipes 101 and the concrete, so that the diversion pipes 101 are placed more stably during pouring of the concrete, and the water hammer effect of the pipeline is eliminated when the steam (or hot water) flows along the pipeline.

[0033] In the embodiment, the arc-shaped bearing part 1021 is in abutment with the lower pipe body arc surface of the diversion pipe 101, so that the arc-shaped bearing part 1021 can support the diversion pipe 101, the diversion pipe 101 is more stable, and the embedded diversion pipe 101 and branch curved pipe 102 in the concrete can act as a steel bar to be combined with the concrete in the pouring area, so that the two can work together, when the concrete platform bears a load, the diversion pipe 101 and the branch curved pipe 102 can bear tensile force and shear force, make up for the deficiency of the concrete in these aspects, so that the concrete can bear various types of loads, and the diversion pipe 101 and the branch curved pipe 102 acting as a steel bar in the concrete can limit the deformation of the concrete, when the concrete is subjected to tensile stress, the diversion pipe 101 and the branch curved pipe 102 can bear a part of the tensile stress, thereby delaying the occurrence of cracks and controlling the expansion of the cracks, and improving the crack resistance of the concrete platform.

[0034] Further, the spiral rib 103 is fixedly embedded on the diversion pipe 101 between adjacent branch curved pipes 102, the spiral rib 103 is arranged on the diversion pipe 101, so that the diversion pipe 101 has the function of a steel bar, which can be used to support the internal structure of mass concrete and also can be used to cure the internal structure of mass concrete by hot water or steam.

[0035] In the embodiment of the utility model, please refer to Figures 1 to 6The cover cloth 200 comprises a plastic film layer 201, the plastic film layer 201 is provided with multiple layers, a straw mat layer 202 is arranged on the plastic film layer 201, a thermal insulation cotton layer 203 is arranged on the straw mat layer 202, a rainproof canvas layer 204 is arranged on the thermal insulation cotton layer 203, and a plurality of fixing flanges 300 are arranged and fixedly embedded on the lowermost plastic film layer 201.

[0036] It should be noted that: when laying the cover cloth 200, the cover cloth 200 is covered on the concrete, and the stone and the wooden board are used for pressing, the plastic film layer 201 is mainly used for preventing water evaporation in the concrete, and the water is crucial for the hydration reaction of the concrete; sufficient water can fully hydrate the cement, improve the strength and durability of the concrete, meanwhile, the plastic film layer 201 can also play a role in isolating the external cold air to a certain extent, and reducing heat loss, and the straw mat layer 202 and the thermal insulation cotton layer 203 covered on the plastic film layer 201 have good thermal insulation performance, can effectively block the heat dissipation to the outside, slow down the temperature reduction speed of the concrete surface, and keep the concrete in a suitable temperature range for a long time, which is beneficial to the growth of the strength of the concrete, and the rainproof canvas layer 204 is mainly used for protecting the inner thermal insulation material, preventing the thermal insulation material from being blown away by the wind or being wetted by the rain and snow, and reducing the thermal insulation effect.

[0037] In the scheme, when steam (or hot water) is not needed for curing the concrete, the fixing flanges 300 on the cover cloth 200 and the connecting flanges 105 on the butt-joint vertical pipes 104 are fixedly connected by screws, so that the cover cloth 200 can be stably covered on the concrete area and is more beautiful.

[0038] When the concrete curing is completed, the butt-joint vertical pipes 104 extending out of the concrete part are cut, and the remaining butt-joint vertical pipes 104 are filled with concrete for sealing treatment.

[0039] In the embodiment, the rainproof canvas layer 204 and the uppermost plastic film layer 201 are fixed by pearl luster sewing thread, the fixing flanges 300 are provided in plurality, and the plurality of fixing flanges 300 are fixedly embedded on the lowermost plastic film layer 201, so that the plastic film layer 201 is prevented from being damaged due to the sewing points in the middle layer.

[0040] The non-woven fabric is sewn on the plastic film at the connection between the plastic film layer 201 and the fixing flange 300, so as to avoid the cracking risk of the plastic film layer 201 and the fixing flange 300.

[0041] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0042] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A concrete winter curing structure, characterized in that, Includes embedded pipe fittings (100) embedded in concrete and cover fabric (200) for covering the concrete surface; The embedded pipe fitting (100) includes a guide pipe (101), on which multiple branch curved pipes (102) are installed at equal intervals and connected to each other. Both ends of the guide pipe (101) are fixedly installed with connecting vertical pipes (104) for extending out of concrete. Connecting flanges (105) are fixedly installed on the connecting vertical pipes (104). The cover fabric (200) includes a plastic film layer (201), which has multiple layers, and a straw mat layer (202) is laid on the plastic film layer (201), an insulation cotton layer (203) is laid on the straw mat layer (202), and a rainproof canvas layer (204) is laid on the insulation cotton layer (203). A fixing flange (300) is fixedly installed on the inner fabric surface of the cover (200).

2. The concrete winter curing structure according to claim 1, characterized in that, The branch curved pipe (102) has an orifice-shaped structure, and the two joints of the branch curved pipe (102) extend into the guide pipe (101) and are interconnected with the guide pipe (101).

3. The concrete winter curing structure according to claim 2, characterized in that, The lower tube of the branch curved pipe (102) is provided with an arc-shaped bearing part (1021), and the arc-shaped bearing part (1021) abuts against the arc surface of the lower tube of the guide pipe (101).

4. The concrete winter curing structure according to claim 3, characterized in that, Spiral ribs (103) are fixedly embedded on the guide pipe (101) between adjacent branch curved pipes (102).

5. The concrete winter curing structure according to claim 1, characterized in that, The rainproof canvas layer (204) and the top plastic film layer (201) are sewn together with pearlescent sewing thread.

6. The concrete winter curing structure according to claim 5, characterized in that, Multiple fixed flanges (300) are provided, and the multiple fixed flanges (300) are fixedly fitted onto the lowest plastic film layer (201).

7. The concrete winter curing structure according to claim 6, characterized in that, Non-woven fabric is sewn onto the plastic film at the connection between the plastic film layer (201) and the fixed flange (300).

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