CN112082873B - Concrete compressive strength detection device and method - Google Patents
Concrete compressive strength detection device and method Download PDFInfo
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- CN112082873B CN112082873B CN202010959123.3A CN202010959123A CN112082873B CN 112082873 B CN112082873 B CN 112082873B CN 202010959123 A CN202010959123 A CN 202010959123A CN 112082873 B CN112082873 B CN 112082873B
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- 239000004567 concrete Substances 0.000 title claims abstract description 108
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 114
- 238000003825 pressing Methods 0.000 claims abstract description 72
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 238000010998 test method Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Abstract
The invention discloses a concrete compressive strength detection device and method, the method comprises the steps of gradually lowering a top pressing plate to the top of a concrete test block along a steel upright post by utilizing hydraulic equipment, wherein the top pressing plate in a certain jacking groove is just contacted with the concrete test block, and the pressure degree of the concrete test block is just displayed in a computer control console. Gradually loading according to the loading mode of the strain control chamber until the pressure degrees of all concrete test blocks are displayed in the computer control console, and stopping the hydraulic equipment in time. The hydraulic cylinder is connected to the computer control console through a hydraulic equipment wire, then the pressure of the computer control console is completely cleared, the loading mode of the strain control type is restarted, the computer control console is utilized to record the pressure, the stress, the displacement and the strain until the concrete test block is completely destroyed, and the detection work of the compressive strength of the concrete is completed. The compression strength test can be carried out on batch concrete test blocks at one time, and compared with the existing concrete compression strength detection device which mainly aims at single test block tests, the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of concrete detection, in particular to a concrete compressive strength detection device and method.
Background
In recent years, concrete has been widely used in various construction projects, and is not available in reinforced concrete structures or in brick-concrete structures. The quality of the concrete has great influence on the safety of a building structure and the manufacturing cost of a building engineering, so that the quality detection of the concrete is one of important links in the whole detection work. The compressive strength is one of main indexes of concrete quality, namely, a cube test piece with the side length of 150mm manufactured and maintained according to a standard method is qualified when the total distribution of the compressive strength measured by a standard test method is a value in the 28d age, and the percentage of the strength lower than the value is not more than 5%.
At present, the existing concrete compressive strength detection device is mainly used for single test block tests, improves test precision and is convenient for waste collection and cleaning. However, little research is done on how to improve the detection efficiency, for example, the prior art patent CN111257127a provides a dual-detection-cavity concrete compressive strength detection device, which is to detect two test blocks simultaneously, but the purpose is to observe the compressive resistance of the concrete test block under different forces, and the detection efficiency cannot be improved.
Therefore, there is a need for a concrete compressive strength detecting device with simple structure and high detecting efficiency.
Disclosure of Invention
Based on the above, the application provides a concrete compressive strength detection device and a method thereof, which at least solve the problem that the detection efficiency is low because the concrete compressive strength detection device and the method in the related art are mainly aimed at a single test block test.
In a first aspect, the present application provides a method for detecting compressive strength of concrete, for performing a compressive strength test on a batch of concrete test blocks, comprising the steps of: step one: at least two test block clamping grooves are formed in the bottom pressing plate, and a pressure gauge clamping groove is formed in the bottom of each test block clamping groove; step two: installing a pressure gauge in a pressure gauge clamping groove, arranging a base plate above the pressure gauge, arranging the base plate in a test block clamping groove, and connecting the pressure gauge with a computer control console; step three: a steel upright post is arranged on the bottom clamping groove, a top pressing plate is sleeved on the steel upright post, a tightening groove is arranged at the position of the top pressing plate corresponding to the test block clamping groove, the tightening groove comprises a groove, a jacking post, a spring and a jacking pressing plate, the groove is formed in the bottom surface of the top pressing plate, the jacking post is arranged in the groove, and the jacking pressing plate is connected with the bottom of the groove through the spring and is suspended below the jacking post and has a gap; step four: a top plate is arranged at the top end of the steel upright post, hydraulic equipment is arranged on the top plate, a top pressing plate is pulled up to the top along the steel upright post through the hydraulic equipment, and a concrete test block is placed on the backing plate; step five: contacting the top pressing plates with the corresponding concrete test blocks from the lower part of the steel upright post to each top pressing plate through hydraulic equipment; when the top pressing plate does not press the concrete test block, the top pressing plate is not contacted with the top column, a gap exists, when the top pressing plate in one of the top pressing grooves is just contacted with the corresponding concrete test block, the computer control console displays the pressure reading of one concrete test block, when the top pressing plate is gradually lowered to the top pressing plate in each top pressing groove to be contacted with the corresponding concrete test block, the computer control console displays the pressure degree of all the concrete test blocks, and the hydraulic equipment controls the top pressing plate to temporarily stop being lowered; step six: and (3) carrying out zero clearing treatment on the pressure degree in the computer control console, repeating the lowering mode in the step five by the hydraulic equipment, recording the pressure, the stress, the displacement and the strain by the computer control console until the concrete test block is completely destroyed, and finishing the detection work of the compressive strength of the concrete. In one possible implementation, in the first step, a wire groove is formed in the bottom pressing plate, the pressure gauge clamping groove is communicated with the wire groove, the pressure gauge is connected with the computer control console through a pressure gauge wire, and the pressure gauge wire is limited in the wire groove.
In one possible implementation, the hydraulic device includes a hydraulic cylinder, the hydraulic cylinder is fixed in the middle of the top plate, the output end of the hydraulic cylinder is provided with a hydraulic rod, the hydraulic rod is connected with the hydraulic cylinder and the top pressing plate, and the input end of the hydraulic cylinder is connected with the computer console through a hydraulic device wire.
In one possible implementation, the hydraulic device is a strain-controlled hydraulic device, the strain-controlled hydraulic device is loaded step by step according to a loading mode of a strain control type, and the lowering displacement of the top pressing plate is controlled until the pressure readings of all concrete test blocks can be displayed in the computer console.
In one possible implementation, a wire output port is formed in the test block clamping groove, and a pressure gauge wire extends to the outer side of the bottom pressing plate along the wire output port and the wire groove and is connected with the computer console.
In one possible implementation, the pressure gauge wires at different locations are numbered, with the numbers corresponding to the readings of the concrete test block displayed by the computer console.
In one possible implementation manner, at least one jacking column is arranged in number and is arranged at the middle position of the bottom of the groove, and the gap between the jacking column and the jacking plate is the height error of the batch of concrete test blocks.
In one possible implementation, in step six, the hydraulic cylinder is wired to the computer console via a hydraulic device.
In one possible implementation, the computer console records the lowering displacement of the top platen and the stress variation of the concrete test block.
In a second aspect, the application provides a concrete compressive strength detection device, which is detected by the concrete compressive strength detection method.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
(1) The scheme can carry out compressive strength test on batch concrete test blocks at one time, and compared with the existing concrete compressive strength detection device which mainly aims at single test block test, the working efficiency is greatly improved.
(2) According to the scheme, the jacking groove is formed in the top pressing plate, so that the error in the height of the concrete test blocks can be overcome, the jacking compression of each concrete test block can be ensured when the compression strength test is carried out on the batch concrete test blocks, and the test precision is improved.
(3) The hydraulic oil press is simple in structure, the purpose of carrying out compressive strength test on a plurality of concrete test blocks at one time can be achieved by improving the hydraulic oil press on the basis of a traditional hydraulic oil press, and the hydraulic oil press is high in practicability.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings required for the description of the embodiments will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic view of a concrete compressive strength testing apparatus;
FIG. 2 is a schematic view of a bottom platen;
FIG. 3 is a schematic view of a pressure gauge arrangement;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the construction of the cinching slot;
Fig. 6 is a schematic operation diagram of the concrete compressive strength detecting device.
Wherein: 1, a top plate; 2, a top pressing plate; 3, a steel upright post; 4, a bottom pressing plate; 5 hydraulic equipment wires; 6, a hydraulic cylinder; 7, a hydraulic rod; 8, tightly pushing the groove; 9 concrete test blocks; 10 backing plates; 11 manometers; 12 gauge wires; 13 a computer console; 14 grooves; 15 top posts; a 16 spring; 17 a pressing plate; 18 test block clamping grooves; 19a pressure gauge clamping groove; 20 wire grooves; 21 wire outlet.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other examples, based on examples in this application, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the application.
It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is apparent to those of ordinary skill in the art that the present application may be applied to other similar situations according to the drawings without inventive effort. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Unless defined otherwise, technical or scientific terms used in the claims and specification should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "a" and "an" and "the" and similar referents used in the specification and claims are not to be construed to limit the scope of the application, which is defined in the singular or the plural. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are immediately preceding the word "comprising" or "comprising", are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the present specification and claims, the term "plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
It is noted that when an element is referred to as being "mounted to" another element, it can be directly mounted to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
The following describes the technical scheme of the present application with reference to the accompanying drawings, such as fig. 1,2, 3, 4, 5 and 6. The embodiment of the application provides a concrete compressive strength detection device, which comprises a top plate 1, a top pressing plate 2 and a bottom pressing plate 4, wherein the bottom pressing plate 4 is provided with at least two test block clamping grooves 18, the bottom of each test block clamping groove 18 is provided with a pressure gauge clamping groove 19, a pressure gauge 11 is arranged in each pressure gauge clamping groove 19, a base plate 10 is arranged on each pressure gauge 11, the base plate 10 is arranged in each pressure gauge clamping groove 19, and a concrete test block 9 for compressive strength detection is arranged on each base plate 10; be equipped with steel stand 3 on the bottom clamp plate 4, the four corners cuff setting of top clamp plate 2 is on steel stand 3, and roof 1 sets up to be fixed on the top of steel stand 3, is equipped with hydraulic equipment on the roof 1, and hydraulic equipment's output shaft is connected with top clamp plate 2 for control top clamp plate 2 is along steel stand 3 transfer down, and manometer 11 passes through manometer wire 12 and links to each other with computer control cabinet 13, is used for testing the compressive strength of top clamp plate 2 transfer in-process concrete test block 9.
In this embodiment, the number of the test block slots 18 is at least 2, but may be 4,5,6 or 8. The test block clamping groove 18 is provided with a pressure gauge 11 for detecting the compressive strength of the concrete test block 9, when the top pressing plate 2 is lowered along the steel upright post 3, the top pressing plate 2 is just contacted with the concrete test block 9, and the computer control console 13 displays the pressure degree of the concrete test block 9.
In some embodiments, the bottom surface of the top pressing plate 2 is provided with a jacking groove 8, the jacking groove 8 comprises a groove 14, jacking columns 15, springs 16 and a jacking plate 17, the groove 14 is formed in the bottom surface of the top pressing plate 2, the jacking columns 15 are arranged in the groove 14, the jacking plate 17 is connected with the bottom of the groove 14 through the springs 16 and is hung below the jacking columns 15, the hydraulic equipment controls the top pressing plate 2 to be lowered to each jacking plate 17 to be in contact with the corresponding concrete test block 9, when the jacking plate 17 does not jack the concrete test block 9, the jacking plate 17 is not in contact with the jacking columns 15, and a gap exists, when the jacking plate 17 in one jacking groove 8 is just in contact with the corresponding concrete test block 9, a pressure reading of one concrete test block 9 is displayed in the computer console 13, and when the jacking plate 17 gradually lowered to each jacking plate 2 in each jacking groove 8 is in contact with the corresponding concrete test block 9, the degrees of the pressure of all concrete test blocks 9 are displayed in the computer console 13. The hydraulic equipment is strain control type hydraulic equipment, the strain control type hydraulic equipment is gradually loaded according to a strain control type loading mode, the lowering displacement of the top pressing plate 2 is controlled, and the pressure readings of all concrete test blocks 9 can be displayed in the computer control console 13.
In this embodiment, the tightening slot 8 is used to overcome the height error of different concrete test blocks 9. Specifically, when the spring 16 is in a stretched state by the tension of the pressing plate 17, the pressing plate 17 is not in contact with the top column 15, and there is a gap, the size of which is determined by the height error of each concrete block 9, and if the height error is ±x mm, the size of the gap may be set to 2x mm. For example, the concrete test block 9 to be detected is placed on the backing plate 10, the computer console 13 is connected with the pressure gauge 11 through the pressure gauge wire 12, the error height of the concrete test block 9 to be detected is + -3 mm, the size of the gap between the top pressing plate 17 and the top column 15 is 6 mm, the hydraulic equipment gradually lowers the top pressing plate 2 to the top of the concrete test block 9 along the steel upright column 3, at this time, the top pressing plate 17 in a certain tightening groove 8 is just contacted with the concrete test block 9, and the pressure degree of one concrete test block 9 is just displayed in the computer console 13. Gradually loading according to the strain control type loading mode until the pressure degrees of all concrete test blocks 9 are displayed in the computer control console 13, and stopping the hydraulic equipment in time. The hydraulic cylinder 6 is connected to the computer console 13 through the hydraulic equipment lead 5, then the pressure of the computer console 13 is completely cleared, the loading mode of the strain control type is restarted, the computer console 13 is utilized to record the pressure, the stress, the displacement and the strain until the concrete test block 9 is completely destroyed, and the detection work of the compressive strength of the concrete is completed.
In some of these embodiments, the dimensions of the pull-up slot 8 are greater than the dimensions of the test block card slot 18.
In this embodiment, the dimensions are numbers representing the length values in specific units, specifically, as shown in fig. 6, when the compressive strength of the concrete is detected, the upper surface of the concrete test block 9 is completely contacted with the bottom surface of the top pressing plate 17, so that the top pressing plate 17 can move vertically in the top tightening groove 8 without being scratched by the inner wall of the top tightening groove 8, the dimensions of the top pressing plate 17 should be smaller than the notch dimensions of the top tightening groove 8, and correspondingly, the length and width of the top tightening groove 8 should be larger than the length and width of the test block clamping groove 18.
In some of these embodiments, the spring 16 expands and contracts in the vertical direction within the recess 14, driving the top pressure plate 17 to move within the recess 14.
In this embodiment, when the spring 16 is in a stretched state, the lower bottom surface of the top pressing plate 17 exceeds the notch of the groove 14, and the groove 14 plays a limiting role of enabling the spring 16 to drive the top pressing plate 17 to stretch in the vertical direction all the time.
In some of these embodiments, the number and location of the jacking slots 8 match the number and location of the test block detents 18 in order to overcome the height errors of all concrete test blocks 9 to be tested.
In summary, the present solution provides a device and a method for detecting compressive strength of concrete, which can perform compressive strength test on batch concrete test blocks 9 at one time, and compared with the existing device for detecting compressive strength of concrete, which is mainly aimed at single test block 9 test, the working efficiency is greatly improved. Specifically, the method comprises the following steps: at the time of detection, as shown in fig. 2, a test block clamping groove 18 and a wire groove 20 are regularly provided on the bottom pressing plate 4, and a pressure gauge clamping groove 19 and a wire output port 21 are provided in the test block clamping groove 18. As shown in fig. 3 and 4, the pressure gauge 11 is installed in the pressure gauge clamping groove 19, the backing plate 10 is arranged above the pressure gauge 11, the pressure gauge wire 12 extends to the outer side of the bottom pressing plate 4 along the wire output port 21 and the wire groove 20, is connected with the computer control console 13, and then the pressure gauge wires 12 at different positions are numbered for recording preparation. As shown in fig. 5, the top platen 2 is provided with the jack grooves 8 at positions corresponding to the test block clamping grooves 18 in the bottom platen 4, and the number of the jack grooves 8 corresponds to the number of the test block clamping grooves 18: a groove 14 with a corresponding size is arranged on the bottom surface of the top pressing plate 2, one or more jacking posts 15 are arranged in the middle of the groove 14, the top pressing plate 17 is connected with the bottom of the groove 14 through springs 16, and is suspended below the jacking posts 15, and appropriate gaps exist. As shown in fig. 1, the top platen 2 is pulled up to the top along the steel columns 3 by hydraulic equipment, and then the concrete test block 9 is placed on the backing plate 10 in the test block clamping groove 18 of the bottom platen 4. As shown in fig. 6, the top pressing plate 2 is gradually lowered to the top of the concrete test block 9 along the steel upright 3 again by using hydraulic equipment, at this time, the top pressing plate 17 in one of the tightening grooves 8 just contacts with the concrete test block 9, and the degree of pressure of one concrete test block 9 is just displayed in the computer console 13. Gradually loading according to the loading mode of the strain control chamber until the pressure degrees of all concrete test blocks 9 are displayed in the computer control console 13, and stopping the hydraulic equipment in time. The hydraulic cylinder 6 is connected to the computer console 13 through the hydraulic equipment lead 5, then the pressure of the computer console 13 is completely cleared, the loading mode of the strain control type is restarted, the computer console 13 is utilized to record the pressure, the stress, the displacement and the strain until the concrete test block 9 is completely destroyed, and the detection work of the compressive strength of the concrete is completed.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. The method for detecting the compressive strength of the concrete is characterized by being used for carrying out compressive strength tests on batch concrete test blocks (9) and comprising the following steps of:
Step one: at least two test block clamping grooves (18) are formed in the bottom pressing plate (4), and a pressure gauge clamping groove (19) is formed in the bottom of each test block clamping groove (18);
Step two: a pressure gauge (11) is arranged in a pressure gauge clamping groove (19), a base plate (10) is arranged above the pressure gauge (11), the base plate (10) is arranged in a test block clamping groove (18), and the pressure gauge (11) is connected with a computer control console (13);
Step three: a steel upright post (3) is arranged on the bottom clamping groove, a top pressing plate (2) is sleeved on the steel upright post (3), a tightening groove (8) is arranged at the position, corresponding to the test block clamping groove (18), of the top pressing plate (2), the tightening groove (8) comprises a groove (14), a jacking post (15), a spring (16) and a jacking plate (17), the groove (14) is formed in the bottom surface of the top pressing plate (2), the jacking post (15) is arranged in the groove (14), and the jacking plate (17) is connected with the bottom of the groove (14) through the spring (16) and is hung below the jacking post (15) with gaps;
At least one jacking column (15) is arranged in number and is arranged in the middle of the bottom of the groove (14), and the gap between the jacking column (15) and the jacking plate (17) is the height error of the batch of concrete test blocks (9);
Step four: a top plate (1) is arranged at the top end of the steel upright post (3), hydraulic equipment is arranged on the top plate (1), a top pressing plate (2) is pulled to the top along the steel upright post (3) through the hydraulic equipment, and a concrete test block (9) is placed on a backing plate (10);
Step five: contacting the top pressing plate (2) with the corresponding concrete test block (9) along the lower part of the steel upright post (3) to each top pressing plate (17) through hydraulic equipment; when the top pressing plate (17) does not press against the concrete test blocks (9), the top pressing plate (17) is not contacted with the top columns (15) and has a gap, when the top pressing plate (17) in one of the top pressing grooves (8) is just contacted with the corresponding concrete test block (9), the computer control console (13) displays the pressure reading of one concrete test block (9), when the top pressing plate (2) is gradually lowered to the top pressing plate (17) in each top pressing groove (8) to be contacted with the corresponding concrete test block (9), the computer control console (13) displays the pressure degree of all the concrete test blocks (9), and the hydraulic equipment controls the top pressing plate (17) to suspend the lowering;
Step six: and (3) carrying out zero clearing treatment on the pressure degree in the computer control console (13), repeating the lowering mode in the step five by the hydraulic equipment, recording the pressure, the stress, the displacement and the strain through the computer control console (13) until the concrete test block (9) is completely destroyed, and completing the detection work of the compressive strength of the concrete.
2. The method for detecting the compressive strength of concrete according to claim 1, wherein in the first step, a wire groove (20) is formed in the bottom pressing plate (4), the pressure gauge clamping groove (19) is communicated with the wire groove (20), the pressure gauge (11) is connected with the computer control console (13) through a pressure gauge wire (12), and the pressure gauge wire (12) is limited in the wire groove (20).
3. The method for detecting the compressive strength of concrete according to claim 1, wherein the hydraulic equipment comprises a hydraulic cylinder (6), the hydraulic cylinder (6) is fixed in the middle of the top plate (1), a hydraulic rod (7) is arranged at the output end of the hydraulic cylinder (6), the hydraulic rod (7) is connected with the hydraulic cylinder (6) and the top pressing plate (2), and the input end of the hydraulic cylinder (6) is connected with the computer console (13) through a hydraulic equipment lead (5).
4. A method for detecting the compressive strength of concrete according to claim 3, wherein the hydraulic equipment is strain-controlled hydraulic equipment, the strain-controlled hydraulic equipment is loaded step by step according to a strain-controlled loading mode, and the lowering displacement of the top pressing plate (2) is controlled until the pressure readings of all concrete test blocks (9) can be displayed in the computer console (13).
5. The method for detecting the compressive strength of concrete according to claim 1, wherein a wire outlet (21) is formed in the test block clamping groove (18), and the pressure gauge wire (12) extends to the outer side of the bottom pressing plate (4) along the wire outlet (21) and the wire groove (20) and is connected with the computer console (13).
6. The method for detecting the compressive strength of concrete according to claim 5, wherein the pressure gauge wires (12) at different positions are numbered, and the numbers correspond to the readings of the concrete test block (9) displayed by the computer console (13).
7. A method of testing the compressive strength of concrete according to claim 3, wherein in step six, the hydraulic cylinder (6) is connected to the computer console (13) via the hydraulic equipment wires (5).
8. The method for detecting the compressive strength of concrete according to claim 1, wherein a computer control console (13) records the lowering displacement of the top pressing plate (2) and the stress change of the concrete test block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010959123.3A CN112082873B (en) | 2020-09-14 | 2020-09-14 | Concrete compressive strength detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010959123.3A CN112082873B (en) | 2020-09-14 | 2020-09-14 | Concrete compressive strength detection device and method |
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| CN112082873A CN112082873A (en) | 2020-12-15 |
| CN112082873B true CN112082873B (en) | 2024-04-26 |
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| CN202010959123.3A Active CN112082873B (en) | 2020-09-14 | 2020-09-14 | Concrete compressive strength detection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113295532A (en) * | 2021-04-23 | 2021-08-24 | 河南省基本建设科学实验研究院有限公司 | Pressure test device and multi-station pressure test machine |
| CN114034570A (en) * | 2021-11-04 | 2022-02-11 | 浙江辰鑫机械设备有限公司 | Intelligent maintenance and detection method for concrete test block |
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| DE102016115090A1 (en) * | 2016-08-15 | 2018-02-15 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | sample holder |
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| DE102016115090A1 (en) * | 2016-08-15 | 2018-02-15 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | sample holder |
| CN207336242U (en) * | 2017-08-30 | 2018-05-08 | 河南省大融高科建材有限公司 | A kind of compression strength of concrete test parts detection device |
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