CN219806252U - Test block forming device for detecting concrete strength - Google Patents
Test block forming device for detecting concrete strength Download PDFInfo
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- CN219806252U CN219806252U CN202322295087.7U CN202322295087U CN219806252U CN 219806252 U CN219806252 U CN 219806252U CN 202322295087 U CN202322295087 U CN 202322295087U CN 219806252 U CN219806252 U CN 219806252U
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- plate
- bottom plate
- test block
- plates
- side plates
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- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 14
- -1 polytetrafluoroethylene Polymers 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a test block forming device for concrete strength detection, which comprises a bottom plate and side plates which are perpendicular to the bottom plate and detachably connected with the bottom plate, wherein a hollow cube structure is formed by surrounding the bottom plate and the side plates, and smooth plates are fixedly arranged on the inner walls of the bottom plate and the side plates and made of high-molecular polymers. The surface of the poured test block is smooth and has no pits, so that the influence of the surface roughness of the test block on the anti-pressure intensity test is avoided, and an operator can accurately find the mixing ratio of the concrete really meeting the design value; the method is suitable for civil engineering and is used for pouring the concrete test block with smooth surface.
Description
Technical Field
The utility model relates to a forming device, in particular to a test block forming device for detecting the strength of concrete.
Background
Concrete is a material commonly used in construction engineering, and its strength is one of important indexes for ensuring safety of a building, so that it is necessary to perform a compressive strength test on the concrete. The compressive strength of concrete refers to the specific cross-sectional area (mm) of the concrete 2 ) The limit value of the upper bearable pressure (N) is a mechanical index of the concrete and is also a basis for determining the grade of the concrete.
Therefore, before concrete is poured to form a test piece (such as a beam and a column) to be used, concrete with different mix ratios is formed according to three basic parameters (water cement ratio, sand ratio and slump) of the concrete, then the concrete with different mix ratios is poured into a forming device, rammed, finally different test blocks are formed, and then compressive strength tests are respectively carried out on the different test blocks. If the compressive strength is smaller than the design value, the strength of the beam and the column poured by the concrete is insufficient, and collapse accidents are easy to occur when the beam and the column bear load for a long time or are subjected to external forces (strong wind, snow, earthquake and the like); when the compressive strength is far greater than the design value, the material waste is caused. Therefore, the mix proportion meeting the design value is found through the compressive strength test, and then the test block meeting the requirements is formed according to the mix proportion, so that the test block is used in the building engineering.
The existing concrete forming device is shown in fig. 1, a cube structure is integrally formed by a bottom plate 1 and a side plate 2 which are detachably connected (the detachable structure is not shown in fig. 1), concrete is poured into the forming device during pouring, tamping is performed, and the device is removed after the concrete is solidified. But the device is easy to make concrete and device inner wall adhesion, and the pit can appear around the test block and the bottom when the drawing of patterns, and the pit can influence the compressive strength test result of test block, leads to compressive strength test result not only to lead to by the mix proportion, and easy misleading operating personnel makes it can not find out the mix proportion that really satisfies the design value.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model aims to provide a test block forming device for detecting the strength of concrete so as to form a test block with a smooth surface, and the problems that the shape of the test block has an influence on the compressive strength test and the mixing ratio really meeting the design value cannot be found are avoided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a test block forming device for concrete strength detects, includes the bottom plate to and perpendicular to bottom plate setting, with the curb plate of bottom plate detachable connection, enclose into hollow cube structure between bottom plate and the curb plate, all set firmly smooth panel on the inner wall of bottom plate, curb plate, its material is polymer.
As a limitation of the present utility model: the smooth plate is a polytetrafluoroethylene plate.
As a further limitation of the utility model: the polytetrafluoroethylene plate is fixed on the inner wall of the bottom plate or the side plate through rivets or glue.
As another definition of the utility model: the bottom plate is provided with a pin hole, the side plate is provided with a pin shaft, and the bottom plate is connected with the side plate through a pin.
As a further limitation of the utility model: the edge positions of the bottom plate and the side plates, which are contacted, are all set to be saw-tooth-shaped, and the bottom plate and the side plates are meshed and connected with tooth grooves through teeth.
As a further limitation of the utility model: the side plates comprise two first side plates which are oppositely arranged and two second side plates which are oppositely arranged, and the two first side plates and the two second side plates enclose a cube structure; the adjacent first side plate and second side plate are connected by a connecting piece.
As a further limitation of the utility model: the connecting piece is an L-shaped fixing plate, the L-shaped fixing plate is arranged on one surface of the first side plate and the second side plate, which is far away from the bottom plate, pin shafts are arranged on one surfaces of the L-shaped fixing plate, which face the first side plate and the second side plate, and pin shaft holes which are matched with the pin shafts are formed in the first side plate and the second side plate.
As a further limitation of the utility model: the surface of the pin shaft, which is contacted with the pin shaft hole, is coated with grease with lubricating effect.
As a further limitation of the utility model: the bottom plate, the side plates and the L-shaped fixing plates are all steel plates.
By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
the utility model is an improvement to the concrete forming device in the prior art, and the concrete improvement point is that a smooth plate is additionally arranged, namely, a polytetrafluoroethylene plate is arranged on the inner walls of a bottom plate and a side plate which enclose a hollow cube structure, the surface of the polytetrafluoroethylene plate is very smooth, concrete is poured into the device when pouring, after being fully solidified and dried, demoulding is carried out, the situation that adhesion between the concrete and the polytetrafluoroethylene plate cannot occur during demoulding is avoided, the device can be quickly dismantled, a test block is taken out, the smooth surface of the test block is ensured, no pits exist, and under the situation, the test result of the test block compressive strength is completely dependent on the proportion of the concrete, and the influence caused by the test of the uneven surface of the test block on the compressive strength is avoided.
In conclusion, the surface of the test block poured by the method is smooth and has no pits, so that the influence on the pressure intensity test caused by the surface roughness of the test block is avoided, and an operator can accurately find the mixing ratio of the concrete really meeting the design value; the method is suitable for civil engineering and is used for pouring the concrete test block with smooth surface.
Drawings
The utility model will be described in more detail below with reference to the accompanying drawings and specific examples.
FIG. 1 is a prior art concrete block forming apparatus;
FIG. 2 is a top view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a cross-sectional view of the base plate;
FIG. 5 is a cross-sectional view of the first side plate;
FIG. 6 is a cross-sectional view of the second side plate;
FIG. 7 is a schematic view of the structure of an L-shaped fixing plate;
FIG. 8 is a cross-sectional view taken along the direction B-B in FIG. 7;
fig. 9 is a cross-sectional view taken along the direction C-C in fig. 7.
In the figure: the novel high-strength steel plate comprises a 1-bottom plate, a 2-side plate, a 21-first side plate, a 22-second side plate, a 3-pin shaft, a 4-pin shaft hole, a 5- 'L' -shaped fixing plate and a 6-polytetrafluoroethylene plate.
Detailed Description
Preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that a test block forming apparatus for concrete strength testing as described herein is a preferred embodiment and is provided for illustration and explanation of the present utility model only and is not intended to be limiting.
The terms or positional relationships of "upper", "lower", "left", "right", "front", "rear", and the like in the embodiments are based on the positional relationships of fig. 2 and 3 in the drawings of the present specification, and are merely for convenience of describing the present utility model and simplifying the description, and are not intended to indicate or imply that the apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the protection of the present utility model.
Example test block forming device for concrete strength detection
As shown in fig. 2 to 9, the embodiment includes a bottom plate 1 and a side plate 2 perpendicular to the bottom plate 1 and detachably connected to the bottom plate 1, wherein a hollow cube structure is enclosed between the bottom plate 1 and the side plate 2, smooth plates are fixedly arranged on inner walls of the bottom plate 1 and the side plate 2, and the inner walls refer to all inner surfaces of the bottom plate 1 and the side plate 2 in the cube structure. The surface of the test block poured by the device is smooth and has no pits, so that the influence on the pressure resistance test caused by the surface roughness of the test block is avoided, and an operator can accurately find the mixing ratio of the concrete really meeting the design value.
Specifically, as shown in fig. 2, the four side plates 2 include two first side plates 21 and two second side plates 22, where the two first side plates 21 are oppositely disposed at the left and right edges of the bottom plate 1, and the two second side plates 22 are oppositely disposed at the front and rear edges of the bottom plate 1. The first side plate 21 is detachably connected with the bottom plate 1, the second side plate 22 is detachably connected with the bottom plate 1, namely, a pin shaft hole 4 along the height direction of the bottom plate 1 is formed in the upper surface of the bottom plate 1, the height direction refers to the up-down direction, the lower surfaces of the first side plate 21 and the second side plate 22 are respectively provided with a pin shaft 3 matched with the pin shaft hole 4, and the fixing of the bottom plate 1 and the side plate 2 is realized by inserting the pin shafts 3 into the pin shaft holes 4; in this embodiment, two pins 3 are disposed at one end of each first side plate 21 and one end of each second side plate 22 facing the bottom plate 1, and the number of pins 3 can be increased or decreased according to the field requirement, and correspondingly, the number of pin holes 4 on the bottom plate 1 is also increased or decreased, so long as the fixation between the bottom plate 1 and the side plates 2 can be achieved. Of course, the connection between the bottom plate 1 and the side plate 2 may be replaced by other detachable connection besides pin connection, for example, a through hole is formed in the bottom plate 1 along the height direction thereof, a threaded hole is formed in the side plate 2 corresponding to the through hole, and a bolt is screwed into the threaded hole of the side plate 2 after passing through the through hole, so as to fix the bottom plate 1 and the side plate 2.
As shown in fig. 3 to 6, the positions of the lower ends of the first side plate 21 and the second side plate 22 except the pin shaft 3 are set to be saw-tooth-shaped, the positions of the bottom plate 1, which are in contact with the first side plate 21 or the second side plate 22, are also set to be saw-tooth-shaped, when the assembly is performed, the pin shafts 3 on the two first side plates 21 are aligned with the pin shaft holes 4 positioned at the left end and the right end of the bottom plate 1 respectively and inserted, the teeth at the lower ends of the two first side plates 21 are meshed with the tooth grooves on the bottom plate 1, the pin shafts 3 on the two second side plates 22 are aligned with the pin shaft holes 4 positioned at the front end and the rear end of the bottom plate 1 respectively and inserted, and the teeth at the lower ends of the two second side plates 22 are meshed with the tooth grooves on the bottom plate 1. The structure that adopts tooth-shaped meshing connection between bottom plate 1, curb plate 2 has both increased the fixed area between curb plate 2 and bottom plate 1, makes fixed more firm, can prevent again that concrete slurry from flowing out in the gap of curb plate 2 and bottom plate 1. The wavy line in fig. 3 to 6 represents a zigzag shape, and is only for illustration, and is not intended to limit the tooth-shaped engagement direction between the bottom plate 1 and the side plate 2.
A cube groove is formed between the two first side plates 21, the two second side plates 22 and the bottom plate 1. After the two first side plates 21 and the two second side plates 22 are vertically fixed on the bottom plate 1, each two adjacent first side plates 21 and second side plates 22 are connected through connecting pieces, as shown in fig. 2 and 7, the connecting pieces are L-shaped fixing plates 5, the L-shaped fixing plates 5 are arranged at the connecting positions of the upper surfaces of the first side plates 21 and the second side plates 22, the L-shaped fixing plates 5 are four, and the four L-shaped fixing plates 5 are respectively arranged at the four corners where the first side plates 21 and the second side plates 22 are in contact, and a single L-shaped fixing plate 5 is taken as an example for illustration: as shown in fig. 7 to 9, the "L" -shaped fixing plate 5 includes long sides and short sides, where the long sides refer to sides in the left-right direction and the short sides refer to sides in the front-rear direction; the inner angle enclosed by the long side and the short side faces the inside of the cube groove, the long side is fixed on the second side plate 22, the short side is fixed on the first side plate 21, three pin shafts 3 are arranged on the L-shaped fixing plate 5, the connecting line of the central lines of the three pin shafts 3 is also L-shaped, pin shaft holes 4 matched with the pin shafts 3 are formed at the upper ends of the first side plate 21 and the second side plate 22, the adjacent first side plate 21 and the second side plate 22 are fixed through pin connection, and finally, the two first side plates 21, the two second side plates 22 and the bottom plate 1 form a tight cube groove. Of course, the connecting piece may also be a "in-line" fixing plate, and two ends of the "in-line" fixing plate are respectively connected and fixed to the adjacent first side plate 21 and second side plate 22 through pins, so as to fix the adjacent two side plates 2. In the embodiment, the connection between the bottom plate 1 and the side plate 2, and the connection between the first side plate 21 and the second side plate 22 are all connected through pins, so that the installation and the disassembly operations are simple and convenient.
It should be noted that the surface of the pin shaft 3 is coated with grease having a lubricating effect, so that the pin shaft 3 can be taken out of the pin shaft hole 4 more quickly and more effort-saving when the device is removed later.
As shown in fig. 3, smooth plates are arranged on the inner walls of the bottom plate 1, the two first side plates 21 and the two second side plates 22, the smooth plates in the embodiment are polytetrafluoroethylene plates 6, the polytetrafluoroethylene plates 6 are fixed on the inner walls of the bottom plate 1 and the side plates 2 through glue, the polytetrafluoroethylene plates 6 can also be fixed through rivets, the surfaces of the polytetrafluoroethylene plates 6 are very smooth, after concrete pouring and solidification, adhesion between the concrete and the polytetrafluoroethylene plates 6 can not occur during demolding, the structure can be used for rapidly dismantling the device and taking out test blocks, the smooth surfaces of the periphery and the bottom of the demolded test blocks are ensured, pits are avoided, the test block compressive strength test result is ensured to be completely dependent on the mix proportion of the concrete, and the influence caused by the test of uneven surface anti-pressure intensity of the test blocks is avoided. Of course, the polytetrafluoroethylene plate 6 in the present embodiment may be replaced with another polymer material, for example, a material having high smoothness such as a polymethyl methacrylate plate or a polycarbonate plate.
In order to complete the embodiment, the bottom plate 1, the first side plate 21, the second side plate 22 and the L-shaped fixing plate 5 are all made of steel plates, and when concrete is poured into the device, the device can be prevented from deforming during tamping, so that the device is convenient to reuse.
When the concrete pouring device is used, concrete is poured into the cube groove of the device, ramming is carried out, after the concrete is fully solidified and dried, the L-shaped fixing plate 5 is removed firstly, then the two first side plates 21 and the two second side plates 22 are removed, a concrete test block is taken out, a compressive strength test is carried out on the concrete test block, the periphery and the bottom surface of the test block formed by the device are smooth, pits are not formed, the result of the compressive strength test of the test block is ensured to be completely dependent on the proportion of the concrete, the influence caused by the compressive strength test due to the uneven surface of the test block is avoided, and the concrete pouring device is simple in structure, convenient to assemble and disassemble and reusable.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but the present utility model is described in detail with reference to the foregoing embodiment, and it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. A test block forming device for concrete strength detects, including the bottom plate to and perpendicular to bottom plate setting, with the curb plate of bottom plate detachable connection, enclose into hollow cube structure, its characterized in that between bottom plate and the curb plate: the bottom plate is provided with a pin shaft hole, the side plate is provided with a pin shaft, and the bottom plate is connected with the side plate through a pin; the edge positions of the bottom plate and the side plates, which are contacted, are all arranged in a zigzag shape, and the bottom plate and the side plates are meshed and connected with tooth grooves through teeth; smooth plates are fixedly arranged on the inner walls of the bottom plate and the side plates, and the smooth plates are made of high-molecular polymers.
2. The test block forming device for concrete strength detection as claimed in claim 1, wherein: the smooth plate is a polytetrafluoroethylene plate.
3. The test block forming device for concrete strength detection according to claim 2, wherein: the polytetrafluoroethylene plate is fixed on the inner wall of the bottom plate or the side plate through rivets or glue.
4. A test block forming device for concrete strength detection according to any one of claims 1 to 3, characterized in that: the side plates comprise two first side plates which are oppositely arranged and two second side plates which are oppositely arranged, and the two first side plates and the two second side plates enclose a cube structure; the adjacent first side plate and second side plate are connected by a connecting piece.
5. The test block forming device for concrete strength detection as claimed in claim 4, wherein: the connecting piece is an L-shaped fixing plate, the L-shaped fixing plate is arranged on one surface of the first side plate and the second side plate, which is far away from the bottom plate, pin shafts are arranged on one surfaces of the L-shaped fixing plate, which face the first side plate and the second side plate, and pin shaft holes which are matched with the pin shafts are formed in the first side plate and the second side plate.
6. The test block forming device for concrete strength detection as claimed in claim 5, wherein: the surface of the pin shaft, which is contacted with the pin shaft hole, is coated with grease with lubricating effect.
7. The test block forming device for concrete strength detection as claimed in claim 6, wherein: the bottom plate, the side plates and the L-shaped fixing plates are all steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322295087.7U CN219806252U (en) | 2023-08-25 | 2023-08-25 | Test block forming device for detecting concrete strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322295087.7U CN219806252U (en) | 2023-08-25 | 2023-08-25 | Test block forming device for detecting concrete strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219806252U true CN219806252U (en) | 2023-10-10 |
Family
ID=88213469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322295087.7U Active CN219806252U (en) | 2023-08-25 | 2023-08-25 | Test block forming device for detecting concrete strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219806252U (en) |
-
2023
- 2023-08-25 CN CN202322295087.7U patent/CN219806252U/en active Active
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