Standard curing system for concrete test piece

Abstract

The utility model belongs to the technical field of concrete test piece curing, and particularly relates to a concrete test piece standard curing system which comprises a sealed storage cabinet used for placing concrete test pieces, a humidifying device connected with the sealed storage cabinet, a temperature and humidity sensor installed in the sealed storage cabinet and an electric cabinet arranged outside the sealed storage cabinet. The electric control box is electrically connected with the humidifying equipment and the temperature and humidity sensor; then the environment in the sealed storage cabinet is humidified through the humidifying equipment, the temperature and humidity in the sealed storage cabinet are monitored through the temperature and humidity sensor, and an independent closed space is provided through the sealed storage cabinet to conduct humidifying and temperature control curing on the concrete test piece, so that moisture does not overflow; the influence of moisture on indoor workers and other detection rooms is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete specimen curing, and in particular relates to a concrete specimen standard curing system. Background Art

[0002] For the test laboratories of ready-mixed concrete enterprises, the standard curing room for concrete specimens is an essential inspection (test) site. According to the "Standard for Test Methods for Physical and Mechanical Properties of Concrete" (GB / T 50081-2019), after the concrete specimens are demolded, they should be immediately placed in a standard curing room with a temperature of 20℃±2℃ and a relative humidity of more than 95% for curing until the curing age is reached and they are removed from the curing room for testing. The curing age can be divided into 7d, 28d, 60d, 90d, 180d, etc., but the most common curing age is 28d. The standard curing room is in a constant temperature and humidity uninterrupted operation state all year round. In order to meet the temperature and humidity requirements of the standard curing room, it is usually equipped with temperature control and humidification equipment, especially humidification equipment, which is required to be turned on all year round. The high humidity environment is not friendly to the staff who frequently enter the curing room on a daily basis, and it will greatly reduce the service life of the temperature control and humidification equipment in the curing room, and usually needs to be replaced every 2 to 3 years. In addition, when the standard curing room is in the same space as physical and chemical testing rooms such as cement testing room, aggregate testing room, mechanical testing room, and trial mixing room, opening the curing room will inevitably cause moisture to overflow, which will inevitably affect the normal use of other testing rooms. Utility Model Content

[0003] The utility model discloses a concrete specimen standard curing system, which mainly solves the problem of moisture overflow in the current concrete specimen standard curing room.

[0004] To achieve the above objectives, the utility model provides a standard curing system for concrete specimens, including a sealed storage cabinet for placing concrete specimens, a humidifying device connected to the sealed storage cabinet, a temperature and humidity sensor installed in the sealed storage cabinet, and an electrical control box arranged outside the sealed storage cabinet, wherein the electrical control box is electrically connected to the humidifying device and the temperature and humidity sensor.

[0005] Preferably, the humidifying device is connected to the constant temperature water tank through a pipeline.

[0006] Preferably, the sealed storage cabinet includes a cabinet body, a bracket arranged in the cabinet body for placing concrete specimens, and a water collecting tank arranged at the bottom of the cabinet body, a drain outlet is arranged below the water collecting tank, and a cabinet door is also arranged on the cabinet body.

[0007] Preferably, the drain outlet is connected to a PVC drain pipe.

[0008] Preferably, a multi-layer bracket is arranged in the cabinet, and the bracket includes a plurality of square tubes, and the square tubes are galvanized square tubes.

[0009] Preferably, the size of the galvanized square tube is 45mm-55mm×45mm-55mm.

[0010] Preferably, the water temperature in the constant temperature water tank is constant at 18°C ​​to 22°C.

[0011] The utility model also provides a standard curing method for concrete specimens, comprising the following steps:

[0012] Environmental temperature control steps: control the ambient temperature to 18℃~22℃ through air conditioning;

[0013] Humidification steps: The humidification equipment is started by controlling the electric control box. The humidification equipment sprays the water in the constant temperature water tank into the sealed storage cabinet for placing concrete specimens to adjust the temperature and humidity in the sealed storage cabinet; the temperature and humidity sensor is installed in the sealed storage cabinet. When the sensor senses that the temperature is <18℃ or >22℃, the humidification equipment is turned on and will not turn off until it reaches 18℃~22℃; when the sensor senses that the relative humidity is ≤95%, the humidification equipment is turned on and will not turn off until it reaches >95%.

[0014] The technical solution provided by the utility model has at least the following technical effects:

[0015] The present application places the concrete specimen in a sealed storage cabinet, then humidifies the environment inside the sealed storage cabinet through a humidifying device, and monitors the temperature and humidity inside the sealed storage cabinet through a temperature and humidity sensor. The sealed storage cabinet provides an independent closed space for humidifying and temperature-controlled maintenance of the concrete specimen, so that the moisture will not overflow, thereby avoiding the impact of moisture on indoor staff and other testing rooms. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a structural diagram of a standard curing system for concrete specimens in Example 1 of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the sealed storage cabinet in Example 1 of the utility model.

[0019] Explanation of main reference numerals: 1. cabinet body; 2. bracket; 21. square tube; 3. water collecting tank; 4. drain pipe; 5. cabinet door. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. Example 1

[0023] Reference Figure 1 , Figure 2 This embodiment discloses a concrete specimen standard curing system, which is an important building inspection equipment. Its main function is to simulate the curing process of concrete specimens under a standard environment. This system has a wide range of applications and can be used in various fields such as construction engineering, road and bridge engineering, and water conservancy engineering.

[0024] The system mainly includes a sealed storage cabinet, which is used to place concrete specimens.

[0025] The sealed storage cabinet includes a cabinet body 1, a bracket 2 arranged in the cabinet body 1 for placing concrete specimens, and a water collection tank 3 arranged at the bottom of the cabinet body 1, a drain outlet is arranged below the water collection tank 3, and a cabinet door 5 is also arranged on the cabinet body 1. The cabinet door 5 is an aluminum alloy glass door with a magnetic suction function; when the aluminum alloy glass door is closed, the cabinet body 1 is in a closed state and moisture will not overflow.

[0026] The cabinet 1 is made of high-quality stainless steel material, with a solid structure and strong durability, which can ensure the safety and stability of the storage environment. Inside the cabinet 1, a bracket 2 for placing concrete specimens is provided. The bracket 2 includes a plurality of square tubes 21 arranged in an array. The square tubes 21 are made of galvanized square tubes 21, which have a strong bearing capacity and good anti-corrosion performance. Moreover, the bracket 2 adopts a hollow structure design to better meet the placement requirements of the concrete specimens. The size of the galvanized square tube in this embodiment is 50mm×50mm.

[0027] In addition to the sealed storage cabinet, the system also includes a humidification device, which is connected to the sealed storage cabinet to ensure that the humidity inside the cabinet meets the standard requirements. The humidification device is connected to the thermostatic water tank through a pipe to ensure that the device's requirements for the water temperature of the thermostatic water tank are met. The water temperature in the thermostatic water tank should be strictly controlled between 18℃ and 22℃.

[0028] The humidification equipment adopts advanced atomization technology, which can refine water molecules into tiny particles, so that they can better penetrate into the concrete specimens and ensure that the specimens are fully moistened. The specific structure and principle of the humidification equipment are well known to technicians in this field and will not be described in detail in this embodiment.

[0029] Temperature and humidity sensors are also installed in the sealed storage cabinet to monitor the temperature and humidity in the cabinet in real time. These data can be read and analyzed by the electric control box to better control the maintenance process. The electric control box is electrically connected to the humidification equipment and temperature and humidity sensors, and can control the operation of the entire system through electronic components.

[0030] A water collection tank 3 is provided at the bottom of the sealed storage cabinet. The function of this water collection tank 3 is to collect the moisture generated by humidification during the curing process of the specimen. A drain port is provided below the water collection tank 3 to discharge the collected moisture out of the cabinet. At the same time, in order to facilitate cleaning and maintenance, the drain port is connected to a drain pipe 4, which is a PVC drain pipe.

[0031] In this embodiment, three layers of brackets 2 for placing concrete specimens are arranged in the cabinet 1, and partitions are arranged between each layer of brackets 2 for separation. Such a design can better meet the placement requirements of a large number of concrete specimens. The structure and quantity of the specific brackets 2 can be set according to actual needs. In general, this standard maintenance system for concrete specimens has the advantages of simple structure, convenient operation, and stable performance. It can provide a standard maintenance environment, which can better guarantee the quality and performance of concrete specimens. At the same time, the design of the system also fully considers practicality and durability, and can meet the needs of long-term use. Therefore, the system has broad application prospects in the field of building inspection.

[0032] The humidity in the sealed storage cabinet is adjusted by humidification equipment, and the temperature and humidity in the cabinet are monitored in real time by temperature and humidity sensors. Through the sealed storage cabinet, we provide a relatively independent and closed space for humidification and temperature control of concrete specimens, which not only ensures that moisture will not overflow, but also prevents moisture from having adverse effects on indoor staff and other testing rooms. Example 2

[0033] This embodiment discloses a standard curing method for concrete specimens, which uses the standard curing system for concrete specimens in Embodiment 1 and includes the following steps:

[0034] Ambient temperature control steps: The ambient temperature of the curing room should be controlled by installing a wall-mounted air conditioner or a vertical air conditioner to keep the temperature within the range of 20℃±2℃.

[0035] Humidification steps: Each independent cabinet 1 should be equipped with a humidification device. The humidification device will atomize the water in the constant temperature water tank and spray it into the cabinet 1. The start of the humidification device is controlled by the electric control box. The humidification device atomizes the water in the constant temperature water tank and sprays it into the sealed storage cabinet for placing concrete specimens to adjust the temperature and humidity in the sealed storage cabinet.

[0036] Installation of temperature and humidity sensors: At least one temperature and humidity sensor should be installed at the top, middle and bottom of each independent cabinet 1. The temperature and humidity sensed by the temperature and humidity sensor can be displayed on the display on the electric control box for easy viewing by the staff. When the sensor senses that the temperature is lower than 18°C ​​or higher than 22°C, the humidification device will automatically turn on and spray constant temperature water mist until the temperature returns to the range of 18°C ​​to 22°C and then turns off. Similarly, when the sensor senses that the relative humidity is lower than 95%, the humidification device will automatically turn on and turn off until the relative humidity reaches >95%.

[0037] By adjusting the ambient temperature in the curing room, the water temperature of the humidification equipment, and the opening time of the humidification equipment, we can accurately control the curing temperature of the specimens in the sealed storage cabinet, thereby achieving "dry-wet separation", greatly improving the working environment of the standard curing room and extending the service life of other metal devices in the room. In addition, this improved curing room can accommodate the same number of specimens as the traditional standard curing room, and the size of the storage cabinet can be customized according to the actual situation of the site and the number of specimens to be accommodated, without the need for special waterproofing and moisture-proofing of the curing room enclosure structure. Therefore, this new curing room is an ideal alternative to traditional standard curing rooms and mobile curing boxes for concrete companies and construction sites.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A standard curing system for concrete specimens, characterized in that: The invention comprises a sealed storage cabinet for placing concrete test pieces, a humidifying device connected to the sealed storage cabinet, a temperature and humidity sensor installed in the sealed storage cabinet, and an electric control box arranged outside the sealed storage cabinet, wherein the electric control box is electrically connected to the humidifying device and the temperature and humidity sensor, and the humidifying device is connected to a constant temperature water tank through a pipeline. The sealed storage cabinet comprises a cabinet body (1), a bracket (2) arranged in the cabinet body (1) for placing concrete test pieces, and a water collection tank (3) arranged at the bottom of the cabinet body (1), a drainage outlet is arranged below the water collection tank (3), and a cabinet door (5) is also arranged on the cabinet body (1).

2. The standard curing system for concrete specimens according to claim 1 is characterized in that: The drain outlet is connected to a drain pipe (4).

3. The standard curing system for concrete specimens according to claim 2 is characterized in that: A multi-layer bracket (2) is arranged in the cabinet (1), and the bracket (2) comprises a plurality of square tubes (21), and the square tubes (21) are galvanized square tubes (21).

4. The standard curing system for concrete specimens according to claim 3 is characterized in that: The size of the galvanized square tube (21) is 45 mm to 55 mm×45 mm to 55 mm.

5. The standard curing system for concrete specimens according to claim 1, characterized in that: The water temperature in the constant temperature water tank is constant at 18°C ​​to 22°C.

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