CN102589401B - Device for detecting lateral deformation of cement-based material - Google Patents
Device for detecting lateral deformation of cement-based material Download PDFInfo
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- CN102589401B CN102589401B CN201210036890.2A CN201210036890A CN102589401B CN 102589401 B CN102589401 B CN 102589401B CN 201210036890 A CN201210036890 A CN 201210036890A CN 102589401 B CN102589401 B CN 102589401B
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- gauge head
- depression bar
- support
- scale
- connecting link
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Abstract
The invention relates to a device for detecting the lateral deformation of cement-based material. The device comprises a measuring head, blocking rods, a bottom plate, a measuring head bracket, a precession-type compression bar and a compression bar bracket, wherein the blocking rod, the measuring head bracket and the compression bar bracket are all vertically fixed on the bottom plate; the center line of the measuring head bracket and the compression bar bracket and the middle line of the connecting line of the two blocking rods are both arranged on the same horizontal straight line; a measuring head connecting rod passes through the measuring head bracket and can slide along the measuring head bracket; the precession-type compression bar passes through the compression bar bracket and can slide along the compression bar bracket; the measuring head connecting rod and the precession-type compression bar are positioned on the same horizontal straight line; the rear end surface of the measuring head just faces to the front end surface of the precession-type compression bar; the measuring head connecting rod is provided with scales; the upper surface of the measuring head bracket is provided with scales which are matched with the scales of the measuring head connecting rod and can form a metering tool with the measuring head connecting rod; the precession-type compression bar is rotated to forwards push the measuring head to load; and the scales or dial indicators on the measuring head and the measuring head bracket are used for reading numbers. The device for detecting the lateral deformation of cement-based material has the characteristics of simple structure, low cost and strong practicality.
Description
Technical field
The present invention relates to a kind of pick-up unit that detects lateral deformation of cement-based material, be mainly used in the fields such as cement based gap filler, polymer-modified cement mortar, the transversal deformability by test material is to evaluate its pliability.Belong to Inorganic Non-metallic Materials detection field.
Background technology
The detection of material transversal deformability is to evaluate the flexible test method of inclined to one side rigid material, the process of the test of this test method is: under standard conditions, long 300 ± the 1mm of moulding, wide 45 ± 1mm, the rectangular parallelepiped test block of high 3 ± 0.5mm, maintenance is to stipulating the length of time, it is on 200 ± 1mm support that test block is lain in a horizontal plane in to width, in test block centre position, by gauge head, with certain speed, load until obvious crack or fracture appear in test block again, record loads the distance pressing down, and with the size of depression distance, come the flexibility test process of evaluating material with reference to JC/T 1004-2006 Appendix B.Because this test method principle is simple, easy and simple to handle, safe and be widely adopted at cement based gap filler and polymer cement waterproof mortar field.
But, laboratory is for detection of loading equipemtn the disunity of transversal deformability at present, and do not develop the support equipment of special detection transversal deformability, researchist's over-borrowing now be used as detecting the equipment of transversal deformability with the pressure testing machine that can load with certain speed.Pressure testing machine not only price is relatively costly, and during by pressure testing machine, also need the test method detecting according to transversal deformability to customize supporting utility appliance, most of pressure testing machine can not record the distance pressing down simultaneously, be difficult to guarantee to detect the accuracy of data, thereby cause the test method of this soft evaluation to be limited in actual applications.
Summary of the invention
The technical problem to be solved in the present invention is: for current without supporting detection transversal deformability equipment, and use that other equipment costs are higher, the problem of performance difficulty and poor accuracy, the invention provides a kind of device that detects lateral deformation of cement-based material, the reading mode that this device can be different according to the different choice of testing requirement precision.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A pick-up unit for detection of lateral deformation of cement-based material, is characterized in that: described device comprises gauge head, gear stick, base plate, gauge head support, screw type depression bar, depression bar support; Gear stick, gauge head support and depression bar support are all vertically fixed on base plate, and the center line of gauge head support and depression bar support and the center line of two grades of excellent lines are all on same level straight line; Gauge head connecting link also can slide along gauge head support through gauge head support, screw type depression bar also can slide along depression bar support through depression bar support, gauge head connecting link and screw type depression bar are positioned at same level straight line, and the front end face of gauge head connecting link rear end face and screw type depression bar over against; Gauge head connecting link is provided with scale, and gauge head rack upper surface is provided with and matches with gauge head connecting link scale and can form with gauge head connecting link the scale of metering outfit.
Described gauge head is comprised of half-cylindrical pressure head and cylindrical gauge head connecting link, and half cross section, circular diameter place of pressure head is connected with gauge head connecting link; Described gauge head connecting link shaft is provided with scale.
Described gauge head support is the rectangular block support with semicircle endoporus, and rack upper surface semicircle orifice both sides are with the scale matching with gauge head connecting link shaft scale.
The minimum calibration of described gauge head connecting link scale is 1mm; The minimum calibration of described gauge head support scale is 0.9mm, scale overall length 9mm; The scale of gauge head connecting link high scale and gauge head support forms the measuring stick that precision is 0.1mm, and can adjust by change gauge head support high scale minimum division value the measuring accuracy of measuring stick.
Described depression bar support is containing the endoporus of attacking accurate thread, and described screw type depression bar shaft has been attacked accurate thread, and screw type depression bar can move and promote gauge head along depression bar support inner hole centreline direction and load.
Also be provided with dial indicators rack and clock gauge; The center line of dial indicators rack center line and gauge head support and depression bar support is on same level straight line; Described clock gauge is contained on dial indicators rack and dial plate is parallel to floor level placement, and dial plate center line is vertical with two gear stick lines; Described clock gauge can require freely to dismantle according to measuring accuracy.
Described base plate is a smooth steel plate, smooth surface.
During use, screw type depression bar moves along centerline direction, when screw type depression bar turns clockwise with certain speed, precession depression bar is pushed ahead with certain speed, after touching gauge head connecting link, promotes gauge head and pushes ahead with identical speed, until while there is obvious crackle in test specimen pressurized place, the screw type depression bar that stops operating, by the scale on gauge head and gauge head support or clock gauge reading, records the reading of gauge head connecting link and gauge head support high scale scale.
This apparatus structure is simple, and accuracy of detection is expensive low, and can choose flexibly different reading modes according to measuring accuracy, for the detection of lateral deformation of cement-based material ability provides a kind of experimental implementation device of simple and fast.
Accompanying drawing explanation:
Accompanying drawing 2 is front elevations of Fig. 1.
Accompanying drawing 3 is structural representations of gauge head used in Fig. 1 and Fig. 2.
Accompanying drawing 4 is gauge head supporting structure schematic diagram used in Fig. 1 and Fig. 2.
Accompanying drawing 5 is the result of implementation comparison diagrams that adopt this device.
Wherein: 1. gauge head, 2. dial indicators rack, 3. clock gauge, 4. gear stick, 5. base plate, 6. gauge head support, 7. screw type depression bar, 8. depression bar support, 9. scale
Embodiment:
Below in conjunction with embodiment and accompanying drawing, the invention will be further described, but do not limit the present invention.
A kind of pick-up unit for detection of lateral deformation of cement-based material that the present invention implements, is characterized in that: described device comprises gauge head 1, dial indicators rack 2, clock gauge 3, gear stick 4, base plate 5, gauge head support 6, screw type depression bar 7, depression bar support 8, scale 9; Gear stick 4 vertically stands on base plate 5, and two grades of excellent centre distance are 200mm; The center line of dial indicators rack 2, gauge head 1, screw type depression bar 7, depression bar support 8 is on same level straight line.Gauge head connecting link is through gauge head support 6 endoporus, and the front end of gauge head connecting link end face and screw type depression bar 7 is over against placement.
Described base plate 5 is a smooth steel plate, smooth surface, and dial indicators rack 2, gear stick 4, gauge head support 6 and depression bar support 7 are all fixed on base plate 5, and gauge head 1 can be along base plate 5 horizontal slips.
Described gauge head 1 is comprised of half-cylindrical pressure head and cylindrical gauge head connecting link, and half cross section, circular diameter place of pressure head 1 is connected with gauge head connecting link; On connecting link, have scale 9, the minimum calibration of scale 9 is 1mm; Described gauge head support 6 is the rectangular block support with semicircle endoporus, rack upper surface semicircle orifice both sides band scale, and the minimum calibration of scale is 0.9mm, scale overall length 9mm.Gauge head support 6 is fixing, and gauge head connecting link can slide along inner hole centreline direction in gauge head support 6.Gauge head connecting link high scale 9 forms with the scale of gauge head support 6 measuring stick that precision is 0.1mm, and can by change gauge head support 6 high scale minimum division values, adjust the measuring accuracy of measuring stick, gauge head 1 is combined as and loads the device being integrated with metering with gauge head support 6 thus.
Described screw type depression bar 7, shaft is cylindrical and attacked accurate thread, and depression bar support 8 is containing the endoporus of attacking accurate thread, and during rotation, screw type depression bar 7 moves along depression bar support 8 inner hole centreline directions.When screw type depression bar 7 turns clockwise with certain speed, screw type depression bar 7 is pushed ahead with certain speed, when depression bar 7 front ends touch after gauge head connecting link, promotes gauge head 1 and pushes ahead with identical speed.
Said apparatus carries out test operation according to following concrete steps:
1, press the ceramic wall and floor tile gap filler JC/T 1004-2006 Appendix B in Chinese building material industry standard, the rectangular parallelepiped test specimen of the long 300 ± 1mm of moulding, wide 45 ± 1mm, high 3 ± 0.5mm, and arrive and stipulate the length of time by the maintenance of standard curing system.
2, by the test specimen of forming perpendicular to 5 of base plates on two gear sticks 4, the position of adjusting gauge head 1, withstands on test specimen centre position gauge head 1 head, and two gear sticks 4 and gauge head 1 form the gesture of 3 bendings, by test specimen clamping, record the reading A of scale on gauge head connecting link and gauge head support 6.(when used clock gauge reading, clock gauge 3 is arranged on dial indicators rack 2, adjusts position, make clock gauge measuring head withstand on test specimen medium position, wait put steady after, record the reading A* of clock gauge dial plate).
3, clockwise rotate screw type depression bar 7, until depression bar front end contacts with gauge head connecting link, be then slowly rotated further stably screw type depression bar 7, the position that carefully observation gauge head 1 contacts with test specimen simultaneously.
4, continue to rotate pusher depression bar 7, until test specimen pressurized place is while occurring obvious crackle, the screw type depression bar 7 that stops operating, records the reading B of scale on gauge head connecting link and gauge head support 6.(while using clock gauge reading, recording the reading B* of clock gauge 3 dial plates).
5, the data of record are processed, the difference B-A of twice reading or B*-A*, be the transversely deforming of institute's test block.
Experimental Comparison effect is as follows:
(a) test raw material: cement: PO 42.5 Portland cements; Silica sand: the commercially available silica sand in Wuhan City, particle diameter 200 orders; Latex powder: vinyl acetate and ethylene copolymer redispersable latex powder, solid content is greater than 98%; Defoamer: organosiloxane class powder defoamer, active matter content is greater than 14%; Mixing water: tap water.
(b) test match ratio
Table 1 embodiment match ratio (mass ratio)
(c) test method: press 6 of the rectangular parallelepiped test specimens of the long 300 ± 1mm of each moulding of match ratio shown in table 1, wide 45 ± 1mm, high 3 ± 0.5mm, detect the transversely deforming of each test specimen by above-mentioned concrete steps.
(d) test findings: survey and respectively organize test specimen polymkeric substance and account for system proportion, transversely deforming, crimping than rupture strength/compressive strength corresponding relation as shown in Figure 5.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalence of therefore doing according to the present patent application the scope of the claims changes, and still belongs to protection scope of the present invention.
Claims (8)
1. for detection of a pick-up unit for lateral deformation of cement-based material, described device comprises gauge head, gear stick, base plate, gauge head support, screw type depression bar, depression bar support; It is characterized in that: gear stick, gauge head support and depression bar support are all vertically fixed on base plate, and the center line of gauge head support and depression bar support and the center line of two grades of excellent lines are all on same level straight line; Gauge head connecting link also can slide along gauge head support through gauge head support, screw type depression bar also can slide along depression bar support through depression bar support, gauge head connecting link and screw type depression bar are positioned at same level straight line, and the front end face of gauge head connecting link rear end face and screw type depression bar over against; Gauge head connecting link is provided with scale, and gauge head rack upper surface is provided with and matches with gauge head connecting link scale and can form with gauge head connecting link the scale of metering outfit.
2. pick-up unit according to claim 1, is characterized in that: described gauge head is comprised of half-cylindrical pressure head and cylindrical gauge head connecting link, and half cross section, circular diameter place of pressure head is connected with gauge head connecting link; Described gauge head connecting link shaft is provided with scale.
3. pick-up unit according to claim 1 and 2, is characterized in that: described gauge head support is the rectangular block support with semicircle endoporus, and rack upper surface semicircle orifice both sides are with the scale matching with gauge head connecting link shaft scale.
4. pick-up unit according to claim 3, is characterized in that: the minimum calibration of described gauge head connecting link scale is 1mm; The minimum calibration of described gauge head support scale is 0.9mm, scale overall length 9mm; The scale of gauge head connecting link high scale and gauge head support forms the measuring stick that precision is 0.1mm, and can adjust by change gauge head support high scale minimum division value the measuring accuracy of measuring stick.
5. according to the pick-up unit described in claim 1 or 2 or 4, it is characterized in that: the endoporus that described depression bar support contains accurate thread, described screw type depression bar shaft has accurate thread, and screw type depression bar can move and promote gauge head along depression bar support inner hole centreline direction and load.
6. according to the pick-up unit described in claim 1 or 2 or 4, it is characterized in that: be also provided with dial indicators rack and clock gauge; The center line of described dial indicators rack center line and gauge head support and depression bar support is on same level straight line; Described clock gauge is contained on dial indicators rack and dial plate is parallel to floor level placement, and dial plate center line is vertical with two gear stick lines; Described clock gauge can require freely to dismantle according to measuring accuracy.
7. pick-up unit according to claim 5, is characterized in that: be also provided with dial indicators rack and clock gauge; The center line of described dial indicators rack center line and gauge head support and depression bar support is on same level straight line; Described clock gauge is contained on dial indicators rack and dial plate is parallel to floor level placement, and dial plate center line is vertical with two gear stick lines; Described clock gauge can require freely to dismantle according to measuring accuracy.
8. according to the pick-up unit described in claim 1 or 2 or 4 or 7, it is characterized in that: described base plate is a smooth steel plate, smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210036890.2A CN102589401B (en) | 2012-02-17 | 2012-02-17 | Device for detecting lateral deformation of cement-based material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210036890.2A CN102589401B (en) | 2012-02-17 | 2012-02-17 | Device for detecting lateral deformation of cement-based material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102589401A CN102589401A (en) | 2012-07-18 |
| CN102589401B true CN102589401B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210036890.2A Expired - Fee Related CN102589401B (en) | 2012-02-17 | 2012-02-17 | Device for detecting lateral deformation of cement-based material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109341562B (en) * | 2018-12-03 | 2020-05-12 | 重庆工程职业技术学院 | Device for detecting transverse deformation of cement-based material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201041562Y (en) * | 2007-06-08 | 2008-03-26 | 西北民族大学 | Concrete shrinking measurer |
| CN201527425U (en) * | 2009-05-31 | 2010-07-14 | 中建商品混凝土有限公司 | Test device for measuring concrete contraction |
| KR20110024306A (en) * | 2009-09-01 | 2011-03-09 | 에스티엑스조선해양 주식회사 | Scale for fairness check |
| CN102269556B (en) * | 2011-05-09 | 2012-12-19 | 西安建筑科技大学 | Double-precision-control contraction measuring instrument for regenerated concrete |
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Effective date of registration: 20170224 Address after: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee after: Wuhan Institute of Technology Industry Group Co. Ltd Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: Wuhan University of Technology |
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Effective date of registration: 20190110 Address after: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee after: Wuhan University of Technology Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: Wuhan Institute of Technology Industry Group Co. Ltd |
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