Mortar water retention rate detection device

Abstract

The utility model relates to a mortar water-retention rate detection device, which comprises an electronic scale provided with a scale pan on the upper surface and a display panel on the side surface; the positioning rod is fixed on the scale pan; the wedge block is connected to the positioning rod in a penetrating manner; the test mold is in a circular groove shape, is made of a heat conduction material, is connected to the positioning rod in a penetrating manner, is placed on the wedge block and is used for containing mortar, and a slot is formed in one side of the bottom wall of the test mold; the test mold cover is connected to the positioning rod in a penetrating manner and is used for pressing the mortar; a gap is reserved between the inner wall of the test mold; the weight stack is connected to the positioning rod in a penetrating manner and is pressed on the test mold cover; and the heating rod is inserted into the slot. Mortar does not need to be transferred before and after detection, and the detection efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of building material performance detection, in particular to a mortar water retention rate detection device. Background Art

[0002] The water retention rate of mortar refers to the ratio of the moisture content in the mortar to the weight of dry sand. In layman's terms, it is the moisture content that the mortar can retain after mixing. The water retention rate of mortar directly affects the construction performance and strength development of the mortar. When the drying method is used to determine the water retention rate of mortar, microwave drying equipment or oven drying is required. This method is not conducive to direct reading. There are many mortar transfer processes, that is, the mortar needs to be re-weighed before and after heating. During the transfer process, there is a risk of the mortar falling due to artificial transfer, and re-testing leads to low detection efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a mortar water retention rate detection device, which does not require mortar transfer before and after detection and can effectively improve the detection efficiency.

[0004] In order to solve the above problems, a mortar water retention rate detection device is adopted, which includes:

[0005] An electronic scale, with a scale pan disposed on the top and a display panel disposed on the side;

[0006] A positioning rod, which is fixed on the weighing pan;

[0007] A wedge block is connected to the positioning rod;

[0008] The test mold is in the shape of a circular groove and is made of heat-conducting material. It is connected to the positioning rod and placed on the wedge block to hold the mortar. A slot is provided on one side of the bottom wall.

[0009] The test mold cover is connected to the positioning rod and is used to press on the mortar; a gap is reserved between the test mold and the inner wall;

[0010] The weight plate is connected to the positioning rod and pressed on the test mold cover;

[0011] The heating rod is inserted into the slot.

[0012] With such a structure, before placing mortar in the test mold, all structures placed on the electronic scale are weighed to obtain a basic weight. After placing the wet mortar, a total weight is obtained. The total weight minus the basic weight is the weight of the wet mortar. The heating rod is heated for a period of time. When the weight stabilizes for a period of time and no longer decreases, the total dry weight after dehydration is obtained. The total dry weight minus the basic weight is the weight of the dry mortar. The weight of the wet mortar minus the weight of the dry mortar is the weight of the water contained in the mortar. The water retention rate of the mortar is obtained by dividing the water weight by the weight of the dry mortar.

[0013] Among them, the wedge block is convenient for tilting the test mold and mortar, so that after the test mold cover and the counterweight plate are pressed tightly, it is helpful to press out the moisture, and the moisture naturally gathers in the low place, which is beneficial to improve the efficiency of heating and evaporating the moisture.

[0014] Among them, the reserved space between the test mold cover and the inner wall of the test mold is conducive to the evaporation of water.

[0015] As a further improvement of the utility model, the wedge block is made of refractory bricks.

[0016] With such a structure, the refractory bricks have good thermal insulation effect, which can prevent heating from affecting the internal structure of the electronic scale and thus affecting the reading.

[0017] As a further improvement of the utility model, a threaded hole is drilled on the weighing pan, and an external thread is provided at the lower end of the positioning rod to match the threaded hole.

[0018] With such a structure, the threaded connection structure is stable, which is conducive to installing or disassembling the positioning rod.

[0019] As a further improvement of the utility model, a metal heat-conducting grid is set up in the test mold.

[0020] With this structure, the metal heat-conducting grid and the test mold cover divide the mortar, which is beneficial to improving the efficiency of water evaporation.

[0021] As a further improvement of the utility model, it also comprises a platform and a transparent cover, wherein the platform is placed under the electronic scale and the transparent cover is placed on the platform to enclose the space.

[0022] Such a structure can protect the test process from external interference.

[0023] As a further improvement of the utility model, a bagged desiccant is placed on the platform.

[0024] With such a structure, the bagged desiccant is helpful to ensure a dry environment.

[0025] As a further improvement of the utility model, the weight plate adopts a dumbbell plate.

[0026] With this structure, the dumbbell pieces have a standard mass and do not require additional weighing. Even if dumbbell pieces are added during the test, it is only necessary to subtract the standard weight of the corresponding dumbbell pieces to accurately obtain the indicators required for the test.

[0027] As a further improvement of the utility model, the portion where the positioning rod passes through the bottom wall of the test mold is also provided with an external thread, and an adapted rubber pad is sleeved thereon and then tightened on the rubber pad with a nut.

[0028] With such a structure, the sealing of the perforated position is achieved by utilizing the property that the rubber pad will expand when squeezed.

[0029] The utility model does not need to transfer mortar before and after detection, and can effectively improve detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an embodiment.

[0031] Figure 2 Schematic diagram of the structure for drilling threaded holes in the weighing pan.

[0032] Figure 3 Schematic diagram of the internal structure of the test mold.

[0033] Figure 4 This is a schematic diagram of the transparent cover installation structure.

[0034] Figure numerals: 1, electronic scale; 101, weighing pan; 102, display panel; 103, threaded hole; 2, positioning rod; 3, wedge; 4, test mold; 401, slot; 5, test mold cover; 6, counterweight; 7, heating rod; 8, nut; 9, metal heat-conducting grid; 10, platform; 11, transparent cover; 12, bagged desiccant; 13, rubber pad. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model 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 limiting the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Example 1

[0038] like Figure 1-Figure 4 As shown, a mortar water retention rate detection device comprises:

[0039] An electronic scale 1, on which a scale pan 101 is arranged, and on the side thereof a display panel 102 is arranged;

[0040] A positioning rod 2, which is fixed on the scale pan 101;

[0041] A wedge 3, which is connected to the positioning rod 2;

[0042] The test mold 4 is in the shape of a circular groove and is made of a heat-conducting material. It is connected to the positioning rod 2 and placed on the wedge block 3 for containing mortar. A slot 401 is provided on one side of the bottom wall.

[0043] The test mold cover 5 is connected to the positioning rod 2 and is used to be pressed on the mortar; a gap is reserved between it and the inner wall of the test mold 4;

[0044] The weight plate 6 is connected to the positioning rod 2 and pressed on the test mold cover 5;

[0045] The heating rod 7 is plugged into the slot 401 .

[0046] With such a structure, before placing mortar on the test mold 4, all structures placed on the electronic scale 1 are weighed to obtain a basic weight. After placing the wet mortar, a total weight is obtained. The total weight minus the basic weight is the weight of the wet mortar. The heating rod 7 works for heating for a period of time. When the weight is stable for a period of time and no longer decreases, the total dry weight after dehydration is obtained. The total dry weight minus the basic weight is the weight of the dry mortar. The weight of the wet mortar minus the weight of the dry mortar is the weight of the water contained in the mortar. The water weight is then divided by the weight of the dry mortar to obtain the water retention rate of the mortar. The heating temperature of the heating rod can be controlled at 50-60°C; the heating time can be controlled at 1-2 hours.

[0047] The wedge block 3 facilitates the tilted placement of the test mold 4 and the mortar, so that after the test mold cover 5 and the counterweight plate 6 are pressed tightly, it is conducive to squeezing out the moisture, and the moisture naturally gathers at a low place, which is conducive to improving the efficiency of heating and evaporating the moisture.

[0048] The test mold 4 can be made of materials with good thermal conductivity such as metal or alloy materials.

[0049] In this embodiment, the wedge block 3 is made of refractory bricks.

[0050] With such a structure, the refractory bricks have good thermal insulation effect, which can prevent heating from affecting the internal structure of the electronic scale and thus affecting the reading.

[0051] In this embodiment, a threaded hole 103 is drilled on the weighing pan 101 , and an external thread is provided at the lower end of the positioning rod 2 to match the threaded hole 103 .

[0052] With such a structure, the threaded connection structure is stable, which is conducive to installing or disassembling the positioning rod 2.

[0053] In this embodiment, a metal heat-conducting grid 9 is set up in the test mold 4 .

[0054] With such a structure, the metal heat-conducting grid 9 cooperates with the test mold cover 5 to divide the mortar, which is beneficial to improving the efficiency of evaporating water.

[0055] In this embodiment, a platform 10 and a transparent cover 11 are also included. The platform 10 is placed under the electronic scale 1, and the transparent cover 11 is placed on the platform 10 to enclose the space.

[0056] Such a structure can protect the test process from external interference.

[0057] In this embodiment, a bagged desiccant 12 is placed on the platform 10 .

[0058] With such a structure, the bagged desiccant 12 is helpful to ensure a dry environment.

[0059] In this embodiment, the weight plate 6 is a dumbbell plate.

[0060] With this structure, the dumbbell pieces have standard mass and do not require additional weighing. Even if dumbbell pieces are added during the test, it is only necessary to subtract the standard weight of the corresponding dumbbell pieces to accurately obtain the indicators required for the test. Moreover, the dumbbell pieces themselves have round holes and do not require additional drilling.

[0061] In this embodiment, the portion where the positioning rod 2 passes through the bottom wall of the test mold 4 is also provided with an external thread, and is sleeved with an adapted rubber pad 13 , and then is tightened on the rubber pad 13 with a nut 8 .

[0062] With such a structure, the sealing of the perforated position is achieved by utilizing the property that the rubber pad 13 expands when squeezed.

[0063] The utility model does not need to transfer mortar before and after detection, and can effectively improve detection efficiency.

[0064] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A mortar water retention rate detection device, characterized in that include: An electronic scale (1) having a scale pan (101) disposed on the top and a display panel (102) disposed on the side thereof; A positioning rod (2) fixed on the weighing pan (101); A wedge (3) which is connected to the positioning rod (2); The test mold (4) is in the shape of a circular groove and is made of a heat-conducting material. It is connected to the positioning rod (2) and placed on the wedge block (3) for containing mortar. A slot (401) is provided on one side of the bottom wall. A test mold cover (5) is connected to the positioning rod (2) and is used to be pressed against the mortar; a gap is reserved between the test mold cover and the inner wall of the test mold (4); A weight plate (6) is connected to the positioning rod (2) and pressed on the test mold cover (5); The heating rod (7) is plugged into the slot (401).

2. The mortar water retention rate detection device according to claim 1, characterized in that The wedge block (3) is made of refractory bricks.

3. The mortar water retention rate detection device according to claim 1, characterized in that A threaded hole (103) is drilled on the weighing pan (101), and an external thread is provided on the lower end of the positioning rod (2) to match the threaded hole (103).

4. The mortar water retention rate detection device according to claim 1, characterized in that A metal heat-conducting grid frame (9) is set up in the test mold (4).

5. The mortar water retention rate detection device according to claim 1, characterized in that It also comprises a platform (10) and a transparent cover (11), wherein the platform (10) is placed under the electronic scale (1), and the transparent cover (11) is placed on the platform (10) to enclose the space.

6. The mortar water retention rate detection device according to claim 5, characterized in that A bagged desiccant (12) is placed on the platform (10).

7. The mortar water retention rate detection device according to claim 1, characterized in that The weight plate (6) is a dumbbell plate.

8. The mortar water retention rate detection device according to claim 1, characterized in that The portion of the positioning rod (2) passing through the bottom wall of the test mold (4) is also provided with an external thread, and is sleeved with an adapted rubber pad (13), and then is tightened onto the rubber pad (13) with a nut (8).

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