Device for testing tensile adhesive strength of tile adhesive

Abstract

The utility model discloses a device for testing the tensile bonding strength of ceramic tile glue, which comprises a concrete plate, a ceramic tile and a drawing head, the drawing head is a wooden drawing head, a clamp is arranged at the top of the wooden drawing head, the concrete plate and the ceramic tile are connected through the ceramic tile glue, clamping arms are arranged on two sides of the clamp, and the clamping arms are clamped on two side walls of the ceramic tile. Clamping parts are arranged on the side walls of the clamping arms; by adopting the scheme of the utility model, when the tensile adhesive strength is tested, if the damage mode is that the adhesive between the ceramic tile and the drawing head is damaged, under the condition, the adhesive strength is greater than the test value, the test data is invalid, and the test needs to be carried out again. The situation is very easy to occur when the metal drawing head is used, so that the experimental quantity is increased. And the bonding force between the wooden drawing head and the ceramic tile is large, so that damage between the drawing head and the ceramic tile is not easy to generate in the drawing process, and the effectiveness of experimental data is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tensile bonding strength testing of tile adhesives, and more specifically, relates to a device for testing the tensile bonding strength of tile adhesives. Background Art

[0002] Ceramic tile cement-based adhesive is the most widely used adhesive among ceramic tile adhesives. It is mainly used to stick ceramic tiles, facing tiles, floor tiles and other decorative materials, and is widely used in decorative places such as interior walls, floors, bathrooms, kitchens and other buildings. However, if the quality of ceramic tile cement-based adhesive is not up to standard, it is easy to cause the ceramic tiles to fall off, affecting their normal use. At the same time, indoor shedding may cause harm to indoor personnel. Therefore, before the ceramic tile cement-based adhesive is put into use, its tensile bond strength or shear bond strength must be tested to ensure that it meets the use requirements.

[0003] The utility model patent with patent number CN201820987215.0 and titled "A ceramic tile cement-based adhesive bonding strength testing device" discloses a ceramic tile cement-based adhesive bonding strength testing device. The device suspends a rectangular concrete block above a first groove, places a rectangular ceramic tile in the first groove, and directly applies force to the rectangular ceramic tile to disconnect the rectangular ceramic tile from the rectangular concrete block, thereby avoiding the influence of factors such as uneven concrete slab surface or crooked pulling head that make the tested tensile bonding strength inaccurate.

[0004] It uses grooves to solve the problem of inaccurate tensile bond strength test due to uneven concrete slab surface or crooked pulling head, but it still does not solve the problem that the pulling head is specified in 7.8.3.2 of JC / T547-2017 "Ceramic Tile Adhesive": It consists of a metal block with a side length of (50±1) mm and a minimum thickness of 10 mm connected to the testing machine. The disadvantage of the use of the pulling head in this standard is that the adhesive between the pulling head and the tile is difficult to clean after use. After bonding, it takes a lot of time to clean the adhesive on the pulling head, which affects the efficiency of the experiment. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the utility model provides a device for testing the tensile bonding strength of tile adhesive.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a device for testing the tensile bonding strength of tile adhesive, comprising a concrete slab, a tile and a pulling head, wherein the pulling head is a wooden pulling head, a clamp is arranged on the top of the wooden pulling head, wherein the concrete slab and the tile are connected by a gelling agent, clamp arms are arranged on both sides of the clamp, the clamp arms are clamped on the two side walls of the tile, and the side walls of the clamp arms are provided with clamping parts.

[0007] The utility model discloses a device for testing the tensile bonding strength of tile adhesive. The clamping part is a clamping surface of a clamping arm that is arranged to be a toothed clamping surface.

[0008] The utility model discloses a device for testing the tensile bonding strength of tile adhesive. The side walls of the clamping arms and the side walls of the wooden pulling heads are both provided with rectangular through holes, and the side walls of the clamping arms correspond to the rectangular through holes of the side walls of the wooden pulling heads. The clamping part is a steel sheet, and the steel sheet can pass through the rectangular through holes.

[0009] Through the above arrangement: whether it is the toothed clamping surface or the steel sheet and through hole with a clamping structure, the clamping force of the clamp can be increased to ensure uniform and balanced force during the drawing process.

[0010] The utility model discloses a device for testing the tensile bonding strength of tile adhesive, which also comprises a testing machine. The testing machine can apply uniform force on the top of a wooden pulling head.

[0011] The utility model discloses a device for testing the tensile bonding strength of tile adhesive. A pulling rod is arranged on the top of the clamp.

[0012] Through the above arrangement: pulling can be performed using a pulling rod, which can make pulling more convenient, save time and effort.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Change the original metal pulling head to wooden material, which does not need to be cleaned after use, thus improving experimental efficiency.

[0015] 2. When testing the tensile bond strength, if the failure mode is the failure of the adhesive between the tile and the pulling head, in this case, the bond strength is greater than the test value, the test data is invalid, and the test needs to be repeated. This is very likely to happen when using a metal pulling head, which increases the amount of testing. The wooden pulling head has a strong bond with the tile, and it is not easy to cause damage between the pulling head and the tile during the pulling process, which improves the validity of the test data.

[0016] 3. The toothed contact surface increases the friction between the wooden pulling head and prevents slipping during the pulling process.

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the prior art of the utility model.

[0021] The markings in the figure are: 1. metal pulling head; 2. tile; 3. adhesive; 4. concrete board; 5. wooden pulling head; 6. clamp; 6-1. toothed clamping surface. DETAILED DESCRIPTION

[0022] The following, with reference to the accompanying drawings, describes the embodiments and further explains the specific implementation methods of the utility model, such as the shapes and structures of the components involved, the relative positions and connection relationships between the components, the functions and working principles of the components, the manufacturing process and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model.

[0023] like Figure 1 The device shown is a device for testing the tensile bonding strength of tile adhesive, comprising a concrete slab 4, a tile 2 and a pulling head, characterized in that the pulling head is a wooden pulling head 5, a clamp 6 is arranged on the top of the wooden pulling head 5, wherein the concrete slab 4 and the tile 2 are connected by a gelling agent 3, clamp arms are arranged on both sides of the clamp 6, the clamp arms are clamped on the two side walls of the tile 2, and the side walls of the clamp arms are arranged with clamping parts; the clamping part is a clamping surface of the clamp arm set to a toothed clamping surface (6-1); the side walls of the clamp arm and the side walls of the wooden pulling head 5 are both provided with rectangular through holes and the side walls of the clamp arm correspond to the rectangular through holes of the side walls of the wooden pulling head 5, the clamping part is a steel sheet, and the steel sheet can pass through the rectangular through holes; it also includes a testing machine, which can apply uniform force on the top of the wooden pulling head 5; a pulling rod is arranged on the top of the clamp 6.

[0024] Working principle and method

[0025] Test conditions: ambient temperature (23±2)℃, relative humidity (50±5)%, and the circulating wind speed in the test area should be less than 0.2m / s.

[0026] Experimental materials: The concrete slabs used in the experiment are of two sizes: 400mm×400mm×40mm and 400mm×200mm×40mm. The moisture content of the concrete slabs should be less than 3% (mass percentage), and the surface water absorption in 4 hours should be controlled between 0.5cm and 1.5cm. The concrete slabs used in the experiment should be placed under standard test conditions for 3 months before the test. The slabs can also be placed at 105℃ for 5 hours and then placed under standard test conditions for 24 hours before use.

[0027] Experimental steps:

[0028] 1: Use a straight-edged spatula to apply a thin layer of adhesive on the concrete slab 4, scrape it vigorously, then use a toothed spatula to apply a slightly thicker layer of adhesive 3, and comb it with the toothed spatula. When holding the toothed spatula, it should be about 60° to the concrete slab 4, at a right angle to one side of the concrete slab 4, and applied parallel to the edge of the concrete slab 4 (moving in a straight line).

[0029] 2: At least 10 test tiles 2 are placed on the adhesive 3 at the specified time. For all adhesives 3, the number of combs on which the tiles 2 are placed should be 4. A pressure of (2000 ± 15) g is placed on each tile 2 for 30 seconds.

[0030] 3: After curing for 27 days under standard test conditions, use a suitable high-strength adhesive (such as epoxy adhesive) to stick the wood pulling head 5 to the ceramic tile 2. Then fix the clamp 6 on the wood pulling head 5 and start pulling.

[0031] 4: After the pulling is completed, continue to place it under standard test conditions for 24 hours and measure the tensile bond strength of the adhesive using a tensile rate of (250±50)N / s.

[0032] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A device for testing the tensile bond strength of tile adhesive, comprising a concrete slab, a tile and a pulling head, It is characterized in that The pulling head is a wooden pulling head, and a clamp is arranged on the top of the wooden pulling head, wherein the concrete slab and the tile are connected by tile glue, and clamp arms are arranged on both sides of the clamp, and the clamp arms are clamped on the two side walls of the tile, and the side walls of the clamp arms are provided with clamping parts.

2. A device for testing the tensile bonding strength of tile adhesive according to claim 1, It is characterized in that The clamping portion is a clamping surface of the clamping arm that is configured as a toothed clamping surface.

3. A device for testing the tensile bonding strength of tile adhesive according to claim 1, It is characterized in that The side walls of the clamp arm and the side walls of the wooden pulling head are both provided with rectangular through holes, and the side walls of the clamp arm correspond to the rectangular through holes of the side walls of the wooden pulling head. The clamping part is a steel sheet, and the steel sheet can pass through the rectangular through holes.

4. A device for testing the tensile bonding strength of tile adhesive according to claim 1, It is characterized in that Also included is a testing machine that applies a uniform force to the top of the wood pulling head.

5. A device for testing the tensile bonding strength of tile adhesive according to claim 1, It is characterized in that A pulling rod is arranged on the top of the clamp.

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