Test mold cover plate for detecting strength of cement mortar

Abstract

The utility model relates to a test mold cover plate for detecting the strength of cement mortar. The test mold cover plate for cement mortar strength detection comprises a rectangular plate body, the length of the plate body is 18-19 cm, the width of the plate body is 15.5-16.5 cm, the thickness of the plate body is 4 mm, supporting columns extending to the two ends of the plate body in the width direction of the plate body are arranged at the two ends of the lower side face of the plate body in the length direction respectively, the height of the supporting columns is 3 mm, and the height of the supporting columns is 4 mm. A groove used for containing a label is formed in the center of the upper side face of the plate body. The size of the test mold cover plate for detecting the strength of the cement mortar is enlarged, when the test mold cover plate is used, the cover plate directly covers the upper side of a test mold, the operation is simple and convenient, the distance between the cover plate and the test mold is adjusted to be 3mm, and the contact probability of the cover plate and cement is reduced. Besides, the groove is formed in the upper side of the cover plate, the label is placed in the groove, and the pressing plate is arranged on the upper side of the groove, so that the label is prevented from falling off or being blown off in the maintenance process, and the problems that mold testing is disordered and cannot be distinguished are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building material detection, and in particular relates to a test mold cover plate for cement mortar strength detection. Background Art

[0002] Cement mortar is made of cement, fine aggregate and water, that is, cement + sand + water, and is prepared according to needs. Cement mixed mortar is made of cement, fine aggregate, lime and water. The two are different concepts, with different names and uses. Cement mortar raw materials can be used to make cement mortar.

[0003] The cement mortar strength test is a test method for testing cement standards. According to the national standard "Test Method for Cement Mortar Strength (ISO Method)" GB / T17671-2021, the cement mortar specimen should be marked immediately after forming and placed on the horizontal shelf of the curing box for curing. The humid air should be able to contact all sides of the test mold and continue to cure until the specified demolding time. The temperature of the curing box should be maintained at 20℃±1℃, and the relative humidity should not be lower than 90%. Due to the high humidity in the curing box, water droplets often gather inside the curing box and easily drip onto the test piece. On the one hand, the ratio of cement mortar changes and the strength decreases; on the other hand, puddles appear on the surface of the test piece. Therefore, it is usually required to add a cover plate to the test mold, and the distance between the cover plate and the test mold should be controlled at 2-3mm.

[0004] At present, there are three main problems with the cover plate. First, the size is just right for the test mold. When the test mold is placed in the curing box, it is difficult to align the test mold at once due to the limited viewing angle, resulting in the cover plate often touching the cement slurry and forming potholes. Second, a large number of molded test pieces need to be numbered, but there is no place to place the numbers on the cover plate. During the curing process, the numbers often fall off, making the numbers confusing. Third, the distance between the cover plate and the test mold is usually controlled at 2mm. The space is too small and it is easy to touch the cement slurry. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a test mold cover plate for cement mortar strength testing.

[0006] The technical solution of a test mold cover plate for cement mortar strength detection of the utility model is:

[0007] A test mold cover plate for cement mortar strength testing comprises a plate body, which is rectangular, has a length of 18 to 19 cm, a width of 15.5 to 16.5 cm, a thickness of 4 mm, support columns extending along the width direction of the plate body to both ends of the plate body are respectively provided at both ends of the length direction of the lower side surface of the plate body, the height of the support columns is 3 mm, and a groove for placing a label is provided at the center position of the upper side surface of the plate body.

[0008] Furthermore, the groove is square, and the side length of the groove is 4 cm.

[0009] Furthermore, the length of the plate body is 18.4 centimeters, the width of the plate body is 16 centimeters, the width of the support column is 1 centimeter, and the length of the support column is 16 centimeters.

[0010] Furthermore, a pressing plate for pressing the label in the groove is provided on the upper side of the plate body, and the pressing plate is square and is a transparent plate.

[0011] Furthermore, the upper side of the plate body is provided with four blind holes respectively located at the four corners of the groove, and a first magnet is provided in the blind hole. The lower side of the pressure plate is provided with four second magnets corresponding to the first magnets one by one, and the lower magnetic pole of the second magnet is attracted to the upper magnetic pole of the first magnet.

[0012] The utility model provides a test mold cover plate for cement mortar strength testing. Compared with the prior art, the utility model has the following beneficial effects:

[0013] When placing the test mold in the curing box, in order to avoid the cement from contacting the cover plate due to bumps during the movement of the test mold, causing potholes in the test mold. Usually, the test mold is placed in the curing box first, and then the cover plate is covered on the test mold. The size of the traditional test mold cover plate is basically the same as the size of the test mold. The cover plate is clamped on the test mold through the claws at the four corners, and the distance between the cover plate and the test mold is controlled at 2 mm. However, placing a traditional cover plate on the test mold placed in the curing box often causes the cover plate to contact with cement, which affects the cement surface. The size of the test mold cover plate for cement mortar strength testing of the utility model is enlarged. When used, the cover plate directly covers the upper side of the test mold. The operation is simple and convenient. The distance between the cover plate and the test mold is adjusted to 3 mm, which reduces the probability of contact between the cover plate and the cement. In addition, by setting a groove on the upper side of the cover plate, placing the label in the groove, and setting a pressure plate on the upper side of the groove, the label is prevented from falling or being blown off during the curing process, thereby avoiding the problem of confusion and indistinguishability of the test mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the test mold cover plate for cement mortar strength testing of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The structure of the test mold cover plate for cement mortar strength testing of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 It is a structural schematic diagram of a second embodiment of a test mold cover plate for cement mortar strength testing of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the plate body in the second embodiment of the test mold cover plate for cement mortar strength testing of the utility model;

[0018] Figure 5 It is a structural schematic diagram of a pressure plate in a second embodiment of a test mold cover plate for testing the strength of cement mortar of the utility model;

[0019] In the figure: 1. plate body; 2. support column; 3. groove; 4. pressure plate; 5. first magnet; 6. second magnet. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0021] A specific embodiment 1 of a test mold cover plate for testing the strength of cement mortar according to the utility model is as follows: Figure 1 , Figure 2 As shown, it includes a plate body 1, which is rectangular, has a length of 18 to 19 cm, a width of 15.5 to 16.5 cm, a thickness of 4 mm, and support columns 2 extending along the width direction of the plate body 1 to both ends of the plate body 1 are respectively provided at both ends of the length direction of the lower side of the plate body 1, and the height of the support column 2 is 3 mm. A groove 3 for placing a label is provided at the center position of the upper side of the plate body 1.

[0022] In this embodiment, the groove 3 is square, and the side length of the groove 3 is 4 cm. The length of the plate body 1 is 18.4 cm, the width of the plate body 1 is 16 cm, the width of the support column 2 is 1 cm, and the length of the support column 2 is 16 cm.

[0023] When placing the test mold into the curing box, in order to avoid the cement from contacting the cover plate due to bumps during the movement of the test mold, causing potholes in the test mold. Usually, the test mold is first placed in the curing box, and then the cover plate is covered on the test mold. The size of the traditional test mold cover plate is basically the same as the size of the test mold. The cover plate is clamped on the test mold by claws at the four corners, and the distance between the cover plate and the test mold is controlled at 2 mm. However, placing a traditional cover plate on the test mold placed in the curing box often causes the cover plate to contact with cement, affecting the cement surface. The size of the test mold cover plate for cement mortar strength testing of the utility model is enlarged. When in use, the cover plate directly covers the upper side of the test mold. The operation is simple and convenient. The distance between the cover plate and the test mold is adjusted to 3 mm, which reduces the probability of contact between the cover plate and cement.

[0024] A specific embodiment 2 of a test mold cover plate for testing the strength of cement mortar according to the utility model is as follows: Figures 3 to 5As shown, it includes a plate body 1, which is rectangular, has a length of 18 to 19 cm, a width of 15.5 to 16.5 cm, a thickness of 4 mm, and support columns 2 extending along the width direction of the plate body 1 to both ends of the plate body 1 are respectively provided at both ends of the length direction of the lower side of the plate body 1, and the height of the support column 2 is 3 mm. A groove 3 for placing a label is provided at the center position of the upper side of the plate body 1.

[0025] In this embodiment, the groove 3 is square, and the side length of the groove 3 is 4 cm. The length of the plate body 1 is 18.4 cm, the width of the plate body 1 is 16 cm, the width of the support column 2 is 1 cm, and the length of the support column 2 is 16 cm. The upper side of the plate body 1 is provided with a pressing plate 4 for pressing the label in the groove 3, the pressing plate 4 is square, and the pressing plate 4 is a transparent plate.

[0026] In this embodiment, the upper side surface of the plate body 1 is provided with four blind holes respectively located at the four corners of the groove 3, and a first magnet 5 is provided in the blind hole. The lower side surface of the pressure plate 4 is provided with four second magnets 6 corresponding to the first magnets 5 one by one, and the lower magnetic pole of the second magnet 6 is attracted to the upper magnetic pole of the first magnet 5.

[0027] When the test mold is placed in the curing box, in order to avoid the cement from contacting the cover plate due to bumps during the movement of the test mold, causing potholes in the test mold. Usually, the test mold is placed in the curing box first, and then the cover plate is covered on the test mold. The size of the traditional test mold cover plate is basically the same as the size of the test mold. The cover plate is clamped on the test mold through the claws at the four corners, and the distance between the cover plate and the test mold is controlled at 2 mm. However, placing a traditional cover plate on the test mold placed in the curing box often causes the cover plate to contact with cement, which affects the cement surface. The size of the test mold cover plate for cement mortar strength testing of the utility model is enlarged. When used, the cover plate directly covers the upper side of the test mold, which is simple and convenient to operate. The distance between the cover plate and the test mold is adjusted to 3 mm, which reduces the probability of contact between the cover plate and cement. The utility model arranges a groove 3 on the upper side of the cover plate, places the label in the groove 3, and arranges a pressing plate 4 on the upper side of the groove 3, thereby avoiding the label from falling or being blown off during the curing process, thereby avoiding the problem of confusion and indistinguishability of the test mold.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A test mold cover plate for cement mortar strength testing, characterized in that: It includes a plate body, which is rectangular, has a length of 18 to 19 cm, a width of 15.5 to 16.5 cm, a thickness of 4 mm, and support columns extending along the width direction of the plate body to both ends of the plate body are respectively provided at both ends of the length direction of the lower side of the plate body, and the height of the support columns is 3 mm. A groove for placing a label is provided at the center of the upper side of the plate body.

2. The test mold cover plate for cement mortar strength testing according to claim 1, characterized in that: The groove is square, and the side length of the groove is 4 cm.

3. The test mold cover plate for cement mortar strength testing according to claim 2, characterized in that: The length of the plate body is 18.4 centimeters, the width of the plate body is 16 centimeters, the width of the support column is 1 centimeter, and the length of the support column is 16 centimeters.

4. The test mold cover plate for cement mortar strength testing according to claim 1, characterized in that: A pressing plate for pressing the label in the groove is disposed on the upper side of the plate body. The pressing plate is square and is a transparent plate.

5. The test mold cover plate for cement mortar strength testing according to claim 4, characterized in that: The upper side of the plate body is provided with four blind holes respectively located at the four corners of the groove, and a first magnet is provided in the blind hole. The lower side of the pressure plate is provided with four second magnets corresponding to the first magnets one by one, and the lower magnetic pole of the second magnet is attracted to the upper magnetic pole of the first magnet.

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