CN105466774A - Handheld concrete compression testing apparatus - Google Patents
Handheld concrete compression testing apparatus Download PDFInfo
- Publication number
- CN105466774A CN105466774A CN201510817705.7A CN201510817705A CN105466774A CN 105466774 A CN105466774 A CN 105466774A CN 201510817705 A CN201510817705 A CN 201510817705A CN 105466774 A CN105466774 A CN 105466774A
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- CN
- China
- Prior art keywords
- steel bar
- steel
- steel bars
- test piece
- concrete compression
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000006835 compression Effects 0.000 title abstract description 4
- 238000007906 compression Methods 0.000 title abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 238000012669 compression test Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 17
- 238000005553 drilling Methods 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000639 Spring steel Inorganic materials 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0041—Human or animal power
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a handheld concrete compression testing apparatus, which comprises two parallelly-arranged steel bars. One end of both the two steel bars is hinged to a vertical steel bar which is perpendicular to the two steel bars. Two circular steel plates are parallelly arranged in the space formed by the two steel bars and the vertical steel bar. A test piece is disposed between the two circular steel plates. A pressure gage used for displaying pressure is arranged between the upper circular steel plate and the upper steel bar. A spring is mounted at the inner side of the other ends of both the two steel bars. Based on a core-drilling method, a cylindrical test piece with its diameter and height being both 50 mm is drilled in an existing concrete structure. The test piece is placed between the two circular steel plates of the apparatus. A low-stress carbon spring steel wire is connected between the upper and lower steel bars. by manually compressing the upper and lower steel bars and reading display number on the digital display pressure gage, strength of the test piece can be known. Through deformation quantity of the spring, elastic modulus of the test piece can be calculated. The whole apparatus is convenient to carry. The detection operation is simple; processing is easy; and cost is low. The apparatus of the invention is convenient for promotion.
Description
Technical field
The present invention relates to a kind of concrete strength on-site detecting device, particularly relate to a kind of hand-held concrete compression test device.
Background technology
At present, the method for Site Detection concrete strength is generally divided into three kinds: rebound method, core drilling method, ultrasonic-rebound method.Rebound method instrument is simple, easy to operate, it is simple and direct to calculate, but being used for the basic premise of detection architecture concrete strength is that inside and outside detected structure or concrete members, quality is basically identical, has the xoncrete structure of notable difference or inner existing defects or component then inapplicable to top layer and internal soundness.Core drilling method is rebound method complicated operation comparatively, and with certain destructiveness, by the impact of local quality quality, core crudy directly has influence on the intensity results of surveyed component, but more directly perceived.The relatively simple and convenient operation of ultrasonic-rebound method, testing result considers concrete surface and internal soundness two factors, and the advantage of existing inspection by rebound method, can reflect inside concrete quality condition again, but Whole Equipment cost is higher.For the relative merits of above detection method, when carrying out engineering site and detecting, study a kind of intensity detecting device easy to carry, simple to operate and have important practical significance.
Because the defect that above-mentioned existing concrete situ strength detecting instrument exists, the design people, actively in addition research and innovation, to founding a kind of hand-held concrete compression test device of new structure, make it have more practicality.
Summary of the invention
Fundamental purpose of the present invention is, overcomes the defect that existing concrete situ strength detecting instrument exists, and provides a kind of novel hand-held concrete compression test device, easy to carry, simple to operate, thus be more suitable for practicality, and there is the value in industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of hand-held concrete compression test device that the present invention proposes, include the steel bar of setting parallel to each other, the vertical steel bar of perpendicular setting is hinged with in one end of described two steel bars, in the space that two steel bars and vertical steel bar are formed, level is provided with two round plates, test specimen is placed with between two round plates, being provided with the tensimeter for showing pressure between the round plate on top and the steel bar on top, inside the other end of described two steel bars, being provided with spring.
Further, aforesaid hand-held concrete compression test device, is provided with height adjuster in the centre position of described vertical steel bar.
Further, aforesaid hand-held concrete compression test device, is provided with rectangle bloom between the round plate and the steel bar of bottom of described bottom, and bloom and round plate are according to the position of round plate bottom the shape adjustments of test specimen.
Further, aforesaid hand-held concrete compression test device, described vertical steel bar by the upper and lower two ends of height adjuster respectively connecting thread steel bar form, screw thread in the other direction, turns adjustable-height.
By technique scheme, hand-held concrete compression test device of the present invention at least has following advantages:
Hand-held concrete compression test device of the present invention is in conjunction with core drilling method advantage more intuitively, by the boring of 50mm on the basis of core drilling method, in active service xoncrete structure, drill through diameter and be highly all the cylinder specimen of 50mm, between two pieces of round plates test specimen being placed on instrument, low stress carbon spring steel wires is connected between upper and lower steel bar, manually in compression, lower two steel bars, the registration read on digital display manometer just knows the intensity of test specimen, by the deformation quantity of spring, the bullet mould of test specimen can be calculated, overall instrument is easy to carry, detect simple to operate, easy processing, cost is low, convenient popularization.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of hand-held concrete compression test device of the present invention;
Fig. 2 is that round plate of the present invention is connected vertical view with test specimen;
Fig. 3 is core boring sampling schematic diagram;
Fig. 4 is height regulator structure schematic diagram;
Implication is marked: 1. tensimeter, 2. spring, 3. steel bar, 4. round plate, 5. test specimen in figure, 6. hinged, 7. height adjuster, 8. rectangle bloom, 9. vertical steel bar.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, the specific embodiment of the present invention is described in detail as follows.
The structural representation of hand-held concrete compression test device of the present invention as depicted in figs. 1 and 2, includes tensimeter 1, spring 2, steel bar 3, round plate 4, test specimen 5, hinged 6, height adjuster 7, rectangle bloom 8 and vertical steel bar 9.
Wherein the contour structures of hand-held concrete compression test device comprises the steel bar 3 of upper and lower two settings parallel to each other, the vertical steel bar 9 of perpendicular setting is had in one end of two steel bars 3 hinged 6, spring 2 is connected with inside the other end of two steel bars 3, spring 2 is low stress carbon spring steel wires, and elasticity is between 30MPa ~ 100MPa.Two round plates 4 parallel to each other are provided with in the middle of the steel bar 3 of upper and lower two settings parallel to each other, tensimeter 1 is provided with between the round plate 4 of its middle and upper part and the steel bar 3 on top, rectangle bloom 8 is welded with between bottom round plate 4 and the steel bar 3 of bottom, test specimen 5 is placed between two round plates 4, and the radius of round plate 4 is 40mm.The centre position of vertical steel bar 9 is provided with height adjuster 7, and the two ends up and down of height adjuster 7 respectively connecting thread steel bar form vertical steel bar 9, and hand of spiral is contrary, can rotate adjustment height by height adjuster 7.
In testing process, bore core machine in place and lay steadily, rig should be fixed, so that unlikely generation position skew when working.Fixing method should make the concrete condition with working-yard according to brill core mechanism, adopts the methods such as push rod support, counterweight, vacuum suction or expansion bolt respectively.Bored core machine before drill bit is not installed, first should be energized and check main shaft sense of rotation.When sense of rotation is clockwise, drill bit can be installed.Bore the rotation of core owner axle, should adjust to perpendicular by the concrete surface of core boring sampling.Bore that core machine switches on power, behind water source, stir speed change button adjusting to required rotating speed.Rotating forward operating grip makes drill bit slowly contact concrete surface, enters after mortise is stablized can pressurize until drill bit blade.After entering to get into predetermined depth, rotate backward operating grip, drill bit is risen to close to concrete surface, then cut off the water.The test specimen 5 taken out from boring, after drying a little, should be put on and mark clearly.If get the requirement that the height of test specimen 5 and quality can not meet specification, then resample.
Each component has three test specimens 5 to be one group, is placed on round plate 4 by three test specimens 5 respectively.In the process of placing, the center of circle, test specimen 5 bottom surface will overlap with the center of circle of round plate 4, then regulates height adjuster 7, makes upper and lower round plate 4 fix with test specimen 5, be close to.During test concrete stress, both hands act on upper and lower two steel bars 3 and just can, by connecting the compression deformation of low stress carbon spring steel wires between upper and lower steel bar 3, simply can measure the deflection of spring, utilize the registration that pressure device reads, can according to stress (σ
o) calculate play mould (E) with strain (ξ) relation.
Measured value (σ
o) not the intensity of final test specimen, actual strength also will consider following factor:
1. component surface intensity temperature when 4. humidity test when 2. 3. the age of concrete tests
So the intensity of last test specimen is as follows:
σ＝σ
o*K1*K2*K3*K4
Wherein, K
1(coefficient in the length of time)=1.0, K
2(residing for structure environment)=1.0, K
3(experiment condition coefficient)=1.0, K
4(hardness correction factor)=0.8 ~ 1.0.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. a hand-held concrete compression test device, it is characterized in that: the steel bar (3) including setting parallel to each other, the vertical steel bar (9) of perpendicular setting is had in one end hinged (6) of described two steel bars (3), in the space that two steel bars (3) and vertical steel bar (9) are formed, level is provided with two round plates (4), test specimen (5) is placed with between two round plates (4), the tensimeter (1) for showing pressure is provided with between the round plate (4) on top and the steel bar (3) on top, spring (2) is provided with inside the other end of described two steel bars (3).
2. hand-held concrete compression test device according to claim 1, is characterized in that: the centre position of described vertical steel bar (9) is provided with height adjuster (7).
3. hand-held concrete compression test device according to claim 1 and 2, is characterized in that: between the round plate (4) and the steel bar (3) of bottom of described bottom, be provided with rectangle bloom (8).
4. hand-held concrete compression test device according to claim 2, is characterized in that: described vertical steel bar (9) is made up of height adjuster (7) upper and lower two ends difference connecting thread steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817705.7A CN105466774A (en) | 2015-11-20 | 2015-11-20 | Handheld concrete compression testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817705.7A CN105466774A (en) | 2015-11-20 | 2015-11-20 | Handheld concrete compression testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105466774A true CN105466774A (en) | 2016-04-06 |
Family
ID=55604715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510817705.7A Pending CN105466774A (en) | 2015-11-20 | 2015-11-20 | Handheld concrete compression testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105466774A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680092A (en) * | 2017-01-22 | 2017-05-17 | 中国电建集团华东勘测设计研究院有限公司 | Vacuum negative pressure-based device for measuring strength and deformation characteristics of coarse-grained soil |
| CN108181181A (en) * | 2018-02-01 | 2018-06-19 | 塔里木大学 | A kind of test compression and the device and method of cyclic bending concrete durability |
| CN109781525A (en) * | 2019-01-23 | 2019-05-21 | 武汉船用机械有限责任公司 | A kind of compression test device |
| CN112945722A (en) * | 2021-01-25 | 2021-06-11 | 周新星 | Bearing wall body bearing pressure simulation experiment device based on pressure sensing determination |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB399614A (en) * | 1932-06-18 | 1933-10-12 | Avon India Rubber Company Ltd | Improvements, in or relating to apparatus for testing of articles by compression |
| GB1310530A (en) * | 1969-12-04 | 1973-03-21 | Craig W D | Apparatus for use in testing the strength of materials |
| US3861201A (en) * | 1972-06-12 | 1975-01-21 | Richards Owen | Method and apparatus for early strength testing of in-place concrete |
| US4501153A (en) * | 1981-02-23 | 1985-02-26 | Ferenc Mehes | Test machine for determining concrete strength |
| JP2006078384A (en) * | 2004-09-10 | 2006-03-23 | Momose Kikai Sekkei Kk | Load variable type strength tester |
| CN201527381U (en) * | 2009-11-12 | 2010-07-14 | 兰州理工大学 | Handheld device for detecting strength of steel bar |
| CN202330182U (en) * | 2011-09-18 | 2012-07-11 | 齐齐哈尔大学 | High polymer material compressive creepmeter |
| CN202522482U (en) * | 2012-04-26 | 2012-11-07 | 北京隆盛泰科石油管科技有限公司 | Extensometer for measuring yield strength of plate-shaped tensile test sample of pipeline steel |
| CN202631363U (en) * | 2012-07-09 | 2012-12-26 | 重庆大学 | Multi-directional stress loading device |
| CN104181039A (en) * | 2014-06-30 | 2014-12-03 | 山东省水利科学研究院 | Elastic modulus measuring method and device for flexible concrete with strength of 1-5MPa |
| CN104792611A (en) * | 2015-04-20 | 2015-07-22 | 郑州大学 | Concrete compression breaking stress-strain total curve testing device |
| CN205228948U (en) * | 2015-11-20 | 2016-05-11 | 苏交科集团股份有限公司 | Portable concrete compressive strength tester |
-
2015
- 2015-11-20 CN CN201510817705.7A patent/CN105466774A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB399614A (en) * | 1932-06-18 | 1933-10-12 | Avon India Rubber Company Ltd | Improvements, in or relating to apparatus for testing of articles by compression |
| GB1310530A (en) * | 1969-12-04 | 1973-03-21 | Craig W D | Apparatus for use in testing the strength of materials |
| US3861201A (en) * | 1972-06-12 | 1975-01-21 | Richards Owen | Method and apparatus for early strength testing of in-place concrete |
| US4501153A (en) * | 1981-02-23 | 1985-02-26 | Ferenc Mehes | Test machine for determining concrete strength |
| JP2006078384A (en) * | 2004-09-10 | 2006-03-23 | Momose Kikai Sekkei Kk | Load variable type strength tester |
| CN201527381U (en) * | 2009-11-12 | 2010-07-14 | 兰州理工大学 | Handheld device for detecting strength of steel bar |
| CN202330182U (en) * | 2011-09-18 | 2012-07-11 | 齐齐哈尔大学 | High polymer material compressive creepmeter |
| CN202522482U (en) * | 2012-04-26 | 2012-11-07 | 北京隆盛泰科石油管科技有限公司 | Extensometer for measuring yield strength of plate-shaped tensile test sample of pipeline steel |
| CN202631363U (en) * | 2012-07-09 | 2012-12-26 | 重庆大学 | Multi-directional stress loading device |
| CN104181039A (en) * | 2014-06-30 | 2014-12-03 | 山东省水利科学研究院 | Elastic modulus measuring method and device for flexible concrete with strength of 1-5MPa |
| CN104792611A (en) * | 2015-04-20 | 2015-07-22 | 郑州大学 | Concrete compression breaking stress-strain total curve testing device |
| CN205228948U (en) * | 2015-11-20 | 2016-05-11 | 苏交科集团股份有限公司 | Portable concrete compressive strength tester |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680092A (en) * | 2017-01-22 | 2017-05-17 | 中国电建集团华东勘测设计研究院有限公司 | Vacuum negative pressure-based device for measuring strength and deformation characteristics of coarse-grained soil |
| CN108181181A (en) * | 2018-02-01 | 2018-06-19 | 塔里木大学 | A kind of test compression and the device and method of cyclic bending concrete durability |
| CN109781525A (en) * | 2019-01-23 | 2019-05-21 | 武汉船用机械有限责任公司 | A kind of compression test device |
| CN112945722A (en) * | 2021-01-25 | 2021-06-11 | 周新星 | Bearing wall body bearing pressure simulation experiment device based on pressure sensing determination |
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Application publication date: 20160406 |