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A concrete maintenance device and maintenance method for winter construction in cold regions

A technology for concrete and cold regions, which is applied in manufacturing tools, ceramic molding machines, etc., can solve the problems of difficulty in developing compressive strength of concrete, high energy consumption of concrete curing measures, and potential safety hazards, so as to achieve uniform maintenance effect and uniform maintenance. , the effect of simple structure

Active Publication Date: 2020-08-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a concrete maintenance device and maintenance method for winter construction in cold regions to solve the problem that concrete maintenance measures consume a lot of energy and have potential safety hazards during winter construction in cold regions, and the current maintenance measures are difficult to match the cold Concrete construction in winter in the district, resulting in the difficulty of developing the concrete to the critical compressive strength after curing

Method used

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  • A concrete maintenance device and maintenance method for winter construction in cold regions
  • A concrete maintenance device and maintenance method for winter construction in cold regions
  • A concrete maintenance device and maintenance method for winter construction in cold regions

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specific Embodiment approach 1

[0048] Specific implementation mode one: combine figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 Describe this embodiment, this embodiment comprises formwork frame, phase-change material layer 2 and insulation layer 3, and described formwork frame comprises top board 1-1, bottom board 1-2 and four side boards 1-3, and four side boards 1 -3 are vertically arranged side by side, four side panels 1-3 are enclosed in turn to form a rectangular frame body, the rectangular frame body is filled with concrete 4, the top plate 1-1 and the bottom plate 1-2 are horizontally arranged on the top and bottom of the rectangular frame body , the outer wall of the template frame is provided with a phase change material layer 2; the phase change material layer 2 outside the top plate 1-1 plays a role in the maintenance of the top surface of the concrete 4, and the phase change material laye...

specific Embodiment approach 2

[0055] Specific embodiment two: this embodiment is a further limitation of specific embodiment one, such as Figure 8 , Figure 9 and Figure 10 As shown, the transverse section of the rectangular frame can be arranged in various forms. The first is that the transverse section of the rectangular frame is smaller than the area of ​​the top plate 1-1, and the second is that the transverse section of the rectangular frame is smaller than that of the bottom plate 1-2. Plate area, the third is that the transverse section of the rectangular frame is smaller than the plate area of ​​the top plate 1-1, and the transverse section of the rectangular frame is smaller than the plate area of ​​the bottom plate 1-2. The above-mentioned various settings are all for the rectangular frame. A space filled with the phase-change material layer 2 is formed between the outer wall and the top plate 1-1 or the bottom plate, which facilitates side maintenance of the concrete 4 .

[0056] The outer w...

specific Embodiment approach 3

[0062] Embodiment 3: This embodiment is the maintenance method implemented by the maintenance device mentioned in Embodiment 1 or 2. Specifically, a suitable phase change material is selected and prepared, and the phase change material is placed between the formwork frame and the insulation layer 3 to form Phase-change material layer 2, pre-embedded temperature sensors in the formwork frame, phase-change material layer 2 realizes heat transfer to concrete 4 through the formwork frame, and phase-change material layer 2 realizes continuous heating and maintenance of concrete 4 by repeated charging and discharging process, when the concrete 4 is molded to a predetermined age, the compressive strength of the concrete 4 is detected. The predetermined age is three days.

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Abstract

The invention relates to a concrete curing device and a curing method for winter construction in a cold region. During winter construction in the cold region, a current concrete curing measure is highin energy consumption, has potential safety hazard, and is difficult to fit for concrete curing in winter in the cold region. The curing device is a rectangular frame body sequentially enclosed by four side plates, wherein concrete is filled in the rectangular frame body; a top plate and a bottom plate are horizontally arranged on the top part and the bottom part of the rectangular frame; a phase-change material layer is arranged on the outer wall of a template frame and is an electrified and heat-storage layer body; and a heat insulating layer is arranged on the outer wall of the phase-change material layer. According to the method provided by the invention, the phase-change material layer located between the template frame and the heat-insulating layer transfers heat to the concrete through the template frame, and continuously heats and cures the concrete through a repetitive heating and heat releasing way. The concrete curing device and the curing method for winter construction inthe cold region provided by the invention are used for concrete curing in winter site construction in the cold region.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a concrete curing device and a curing method for winter construction in cold regions. Background technique [0002] During winter construction in cold regions, the biggest problem faced by concrete is the problem of concrete damage caused by freezing. Improper maintenance will lead to cracks, insufficient strength development, and reduced durability and quality. In order to prevent concrete freezing damage, the "Construction Engineering Winter Construction Regulations" defines "freezing critical strength" as an important index for concrete winter construction, which is used to judge whether concrete has the ability to resist freezing. There are many methods for winter construction, mainly including heat storage method, comprehensive heat storage method, external heating method (electric heating curing method, steam curing method, greenhouse method) and anti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B11/24C04B40/02
Inventor 刘雨时杨英姿孙夫整
Owner HARBIN INST OF TECH
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