CN201508297U - Mortar strength detector using a selecting and pressing method - Google Patents
Mortar strength detector using a selecting and pressing method Download PDFInfo
- Publication number
- CN201508297U CN201508297U CN2009200485204U CN200920048520U CN201508297U CN 201508297 U CN201508297 U CN 201508297U CN 2009200485204 U CN2009200485204 U CN 2009200485204U CN 200920048520 U CN200920048520 U CN 200920048520U CN 201508297 U CN201508297 U CN 201508297U
- Authority
- CN
- China
- Prior art keywords
- circle
- concora crush
- piece
- strength detector
- mortar strength
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present utility model relates to a mortar strength detector using a selecting and pressing method. The mortar strength detector comprises a left round flat-pressing head and a right round flat-pressing head corresponding to the left one, a reaction frame, a driving screw, a loading handle, a concentric centering self-leveling system and an intelligence data acquisition subsystem. The right round flat-pressing head is installed on the concentric centering self-leveling system which is linked with the loading handle through the driving screw, and the left round flat-pressing head is installed on a base of the intelligence data acquisition subsystem and is connected with the output end of the intelligence data acquisition subsystem. Compared with traditional methods, the method of the detector improves the precision of detecting results, has smaller structure damage, and thoroughly solves a problem of detecting a field compression resistance of masonry mortar with a large quantity by the excellent technology effect. The mortar strength detector also has characteristics of wide range of application, small volume, manual loading, convenient operations and minimal influence from environment factors, and is suitable for extensive popularization.
Description
Technical field
The utility model relates to a kind of pick-up unit, relates in particular to a kind of platen press mortar strength detector of selecting.
Background technology
Building industry is the great mainstay industry of China, concerning commonwealthn's national economy.And along with global earthquakes band over past ten years has entered new activity periods, the situation is tense for structural seismic safety.Masonry project is the most various lots of at present version of China.Wherein, masonry mortar intensity is the important parameter that must survey in the engineering detecting.This parameter index also is construction quality, safety, the life-span of estimating masonry project, and carries out the necessary important evidence of structural seismic safety assessment.Therefore, how more science, accurate, efficient, the safe evaluation of carrying out masonry project masonry mortar intensity are the important process of guaranteeing the people life property safety, and the testing of carrying out masonry project masonry mortar intensity is more particularly important.
At present " building mortar basic performance tests method standard " standard (JGJ/T70-2009) of China is primarily aimed at mortar specimen in the work progress and carries out compressive strength and detect, and the method that the cube mortar specimen of preparation 70.7mm * 70.07mm * 70.07mm carries out compressive strength test draws the compressive strength of mortar specimen.Through long-term practice, generally believe to have higher accuracy.But this kind test method can't extract test cube from the masonry project of having built by laying bricks or stones, and the scene that therefore is not suitable for compression strength of building mortar is detected.
For adapting to the demand that the on-the-spot compressive strength of masonry project masonry mortar detects, China issued " masonry project on-the-spot detection technique standard " (GB/T50315-2000), " penetration method detects compression strength of building mortar technical regulation " (JGJ/T136-2001) etc., wherein recommended more than ten kind of detection mode and instrument to select for use, the on-the-spot detection means of existing compression strength of building mortar analyzed for on-the-spot testing staff:
(1) release method: the mortar strength that is used for the common brick body of wall detects.Characteristics: 1 in situ detection, light, the 3 detection position local damages of 2 equipment.Classification: half direct method.The standard application limitations: the horizontal mortar joint full degree of mortar at bed joint is lower than at 65% o'clock, is difficult for selecting for use.
(2) tube platen press: be used for the detection of fired common brick body of wall mortar strength.Characteristics: 1 belongs to sampling detection, 2 only needs general concrete laboratory common equipment, 3 sampling point local damages.Classification: indirect method.The standard application limitations: measuring point quantity is unsuitable too many.
(3) mortar sheet shearing method: be used for the detection of fired common brick body of wall mortar strength.Characteristics: 1 belong to that sampling detects, 2 dedicated mortar strength testing devices and marking apparatus is comparatively light, 3 sampling point local damages.Classification: half direct method.The standard application limitations: lack theoretical foundation, formula is used complicated.
(4) rebound method: be used for fired common brick body of wall mortar intensity detection and be suitable for the generaI investigation of mortar strength homogenieity.Characteristics: 1 belongs to the original position Non-Destructive Testing, and the selection of survey district is unrestricted, 2 reisilometers have approved product, and performance is more stable, and easy and simple to handle, 3 test section site surface only have local damage.Classification: indirect method.The standard application limitations: mortar strength should be less than 2Mpa.
(5) some lotus method: be used for the detection of fired common brick body of wall mortar strength.Characteristics: 1 belongs to sampling detection, easier, the 3 sampling point local damages of 2 experiment works.Classification: half direct method.The standard application limitations: mortar strength should be less than 2Mpa.
(6) method of powder actuated shot: be used for fired common brick and porous brick masonry, the generaI investigation of mortar strength homogenieity.Characteristics: 1 belongs to the original position Non-Destructive Testing, surveys the district and selects unrestricted, 2 ail guns, and bullet etc. have approved product, and equipment is lighter, 3 test section site surface only have local damage.Classification: indirect method.The standard application limitations: 1 quantitatively infers mortar strength, should be used with other detection methods, 2 mortar strengths do not need the standard target calibration before should not detecting less than 2Mpa, 3.
From the related detecting instrument of above detection method, provide the indirectly testing physical quantity of compression strength of building mortar mostly, converting by formula obtains the compression strength value of masonry mortar, and standard all has certain limitation to its range of application.With regard to the higher some lotus method of present testing result precision, own characteristic is: 1 pressurized acting body is a sphere, and test specimen is subjected to the effect of splitting tension force, the 2 formula usage factor correction type experimental formulas along the sphere normal direction, needs repeatedly to revise.
The utility model content
For satisfying the high standard requirement of building field now, need to solve the problem that existing compression strength of building mortar detecting instrument exists, to satisfy the on-the-spot requirement that detects, provide and be used for the on-the-spot instrument that detects of masonry project compression strength of building mortar, detect applicable to the masonry mortar on-site sampling, more accurately directly record the compressive strength of masonry mortar.
The utility model provides a kind of platen press mortar strength detector of selecting, comprise the corresponding pressure circle concora crush head of selecting in the left and right sides, reaction frame, charging handle, drive screw, centering self-level(l)ing system and intelligent number are adopted subsystem with one heart, the right side is selected and is pressed circle concora crush head to be installed in the concentric centering self-level(l)ing system, centering self-level(l)ing system is by drive screw interlock charging handle with one heart, drive screw is assemblied on the reaction frame, the contact portion screw thread of drive screw and reaction frame is suitable, the loading effect of drive screw by charging handle tangential movement and drive concentric centering self-level(l)ing system motion to the left.A left side is selected to press circle concora crush head to be installed in to have intelligent number and is adopted on the subsystem support, connects intelligent number and adopts the subsystem output terminal, and intelligent number is adopted the subsystem support and is arranged at the reaction frame left side.Charging handle drives screw motion and makes concentric centering self-level(l)ing system motion, be installed in the right side in the concentric centering self-level(l)ing system and select and press circle concora crush head slightly to move, and make and select the pressure action face of pressing circle concora crush head and the surface of mortar sheet sample parallels according to the surface smoothness of mortar sheet.
As to further improvement of the utility model:
Described concentric centering self-level(l)ing system is made up of fixture, back-moving spring, cancave cambered surface piece, convex globoidal piece, the right side is selected and is pressed circle concora crush head to be installed on the center of convex globoidal piece, the size of cancave cambered surface piece and convex globoidal piece matches, cancave cambered surface piece and convex globoidal piece centres circle equipotential, cancave cambered surface piece and convex globoidal piece are symmetrical arranged back-moving spring is installed in cancave cambered surface piece and convex globoidal piece by fixture periphery.Centering self-level(l)ing system can select the right side according to the form that detects mortar sheet sample and press circle concora crush head to regulate with one heart.
Leave the gap between described cancave cambered surface piece and the convex globoidal piece.The right side is selected and is pressed circle concora crush head touching mortar sheet sample, and through the adjustment of back-moving spring, back-moving spring has the tension and compression effect to produce, and right the selecting of this part gap assurance presses the position adjustment of circle concora crush head more accurate rationally.
Described cancave cambered surface piece and optional square of convex globoidal piece or circle.These shapes can guarantee that the contraposition of back-moving spring is symmetrical arranged.
Described dust stratification pad is arranged on a left side and selects and press circle concora crush head to press the corresponding below of round concora crush head with right selecting, and is movably set on the reaction frame base.In the test mortar strength, have the broken end of mortar and produce, this device guarantees that at utmost the mortar residue that falls falls into the dust stratification pad, to keep the cleaning in the process of the test.
Selecting and pressing the front end of circle concora crush head is protruding column right cylinder.Its periphery is a circular flat, and its effect is to produce axial cylindrical body compressive stress comparatively uniformly to mortar sheet sample, and can produce the stress stack in the rectangle corner when not existing the face of exerting pressure of general rectangle to exert pressure.
Described selecting presses the protruding column circular flat front end of circle concora crush head that the anti-strange abnormal bed course of stress is set.The position that contacts with mortar sheet sample on the protruding column circular flat of selecting pressure circle concora crush head is provided with polyethylene film, can reduce because the strange deformity of the stressed local stress of test specimen that the out-of-flatness of mortar sheet specimen surface causes resembles.
Described both sides are selected and are pressed circle concora crush head to change in pairs.For cooperating pressurized mortar sheet sample pressurized zone thickness, select the different diameter of pressing circle concora crush head pressure acting surface of selecting.The border of selecting the protruding column circular flat of pressing circle concora crush head is generally speaking left test specimen border all directions and should can be avoided boundary effect to detecting the influence of data like this greater than 1cm.
Described charging handle is arranged to circle wheel type, straight thread is set and sagging concave arc is set at circle wheel edge.This device is for the loading of mechanical type manual spiral, and the concave arc design of sinking is in order to cooperate the contact of finger, to have improved comfort level, makes the distribution of power in the process of loading more even, also makes the loading process more accurate.
The corresponding pressure circle concora crush head of selecting in the described left and right sides, a left side are selected and are pressed circle concora crush head front end projection column cylinder length to select the cylindrical length of pressure circle concora crush head front end projection column greater than the right side.
This instrument is compared the precision that has improved testing result with traditional instrument, and the damage to original structure is less, with good technique effect, thoroughly solved the problem that the on-the-spot compressive strength of various lots of masonry project masonry mortar detects in the engineering reality, this instrument is applied widely, volume is small and exquisite, manual loading, be subjected to such environmental effects minimum, easy to operate, be convenient to large-scale popularization.
Description of drawings
Fig. 1 selects the user mode figure of platen press mortar strength detector for the utility model
Fig. 2 selects the structural representation of platen press mortar strength detector for the utility model
Fig. 3 selects platen press mortar strength detector diagrammatic cross-section for the utility model
The utility model is selected platen press mortar strength detector member: pressure circle concora crush head is selected on 1-reaction frame, a 2-1-left side, the 2-2-right side is selected and pressed circle concora crush head, 3-fixture, 4-back-moving spring, 5-cancave cambered surface piece, 6-convex globoidal piece, 7-drive screw, 8-to prevent that the strange abnormal bed course of stress, 9-charging handle, the sagging concave arc of 9-1-, 10-dust stratification pad, 11-intelligence number are adopted subsystem, 12-intelligence number is adopted the subsystem output terminal.
Specific embodiment
The utility model is described in further detail below in conjunction with Figure of description, according to Fig. 1, the platen press mortar strength detector of selecting shown in Figure 2, comprise that pressure circle concora crush head 2-1 is selected on a corresponding left side, the left and right sides and pressure circle concora crush head 2-2 is selected on the right side, reaction frame 1, drive screw 7, charging handle 9, centering self-level(l)ing system and intelligent number are adopted subsystem 11 with one heart, the right side is selected and is pressed circle concora crush head 2-2 to be installed in the concentric centering self-level(l)ing system, centering self-level(l)ing system is by drive screw 7 interlock charging handles 9 with one heart, a left side is selected to press circle concora crush head 2-1 to be installed in to have intelligent number and is adopted on the support of subsystem 11, connect intelligent number and adopt subsystem 11 output terminals, described intelligent number is adopted subsystem output terminal 12 and is also referred to as sensing system, for guarantee to select the work of platen press mortar strength detector carry out smoothly with test result accurately, at first carry out following operation: 1, intelligent number is adopted the subsystem output end power connect, digital display is partly returned to zero; 2, terminal digital display control subsystem is transferred to " peak value maintenance ".
Form by fixture 3, back-moving spring 4, cancave cambered surface piece 5, convex globoidal piece 6 according to shown in Figure 3 concentric centering self-level(l)ing system, the right side is selected and is pressed circle concora crush head 2-2 to be installed on the center of convex globoidal piece 6, cancave cambered surface piece 5 matches with the size of convex globoidal piece 6, cancave cambered surface piece 5 is symmetrical arranged back-moving spring 4 is installed in cancave cambered surface piece 5 and convex globoidal piece 6 by fixture 3 periphery with convex globoidal piece 6 centres circle equipotential, cancave cambered surface piece 5 with convex globoidal piece 6.Centering self-level(l)ing system can press circle concora crush head 2-2 to regulate according to the different right side is selected of the form structure that detects mortar with one heart, adapts to requirement of experiment to adjust to the optimum position.
According to Fig. 1, Fig. 2, shown in Figure 3, explain the implementation process of instrument provided by the utility model to mortar sheet intensity detection: at first the pressure of selecting according to the thickness of mortar sheet sample of selecting that will use is justified concora crush head model, hand-held mortar sheet sample is placed on a left side and selects and press the circle concora crush head 2-1 and the right side to select to press the corresponding gap of round concora crush head 2-2, locate after adjusting mortar sheet sample position, turn charging handle 9 carries out loading to it, the loading effect of drive screw 7 by charging handle 9 tangential movement and drive concentric centering self-level(l)ing system motion to the left, the right side is selected and is pressed circle concora crush head 2-2 horizontal direction translation left simultaneously, loading procedure selects pressure circle concora crush head 2-1 up to a left side and select when pressing circle concora crush head 2-2 to clamp mortar sheet sample on the right side, continue 9 pairs of mortar sheets of rotation charging handle sample and carry out loading, the right side is selected and is pressed circle concora crush head 2-2 touching mortar piece, according to the adjustment of the form of mortar sheet sample through back-moving spring 4, the right side is selected press a circle concora crush head 2-2 and a left side to select the more accurate balanced and reasonable of stressed position adjustment that pressure circle concora crush head 2-1 acts on mortar sheet sample, the loading process is destroyed the back loading up to mortar sheet sample and is stopped, the residue of ruined mortar sheet sample falls into and is arranged on a left side and selects and press circle concora crush head 2-1 to press the dust stratification pad 10 of circle concora crush head 2-2 below corresponding with right selecting, peak value when record damages by pressure subsequently, be and damage load by pressure, and by formula calculating promptly gets mortar sheet compressive strength of specimens value, remove ruined mortar sheet sample in the dust stratification pad 10, close " peak value maintenance " then, with the digital display part zeroing once more of sensing system, to carry out the test job of next sample.
This instrument is compared the precision that has improved testing result with conventional method, and the damage to original structure is littler, with good technique effect, thoroughly solved the test problems of the on-the-spot compression strength of various lots of masonry project masonry mortar in the engineering reality, this instrument is applied widely, volume is small and exquisite, manual loading, do not need water power, be subjected to such environmental effects minimum, execute-in-place is convenient, is convenient to large-scale popularization.
Claims (11)
1. select platen press mortar strength detector, comprise corresponding pressure circle concora crush head, reaction frame and the drive screw selected in the left and right sides, it is characterized in that: also comprise charging handle, with one heart centering self-level(l)ing system and intelligent number are adopted subsystem, the right side is selected and is pressed circle concora crush head to be installed in the concentric centering self-level(l)ing system, centering self-level(l)ing system is by drive screw interlock charging handle with one heart, a left side is selected to press circle concora crush head to be installed in to have intelligent number and is adopted on the subsystem support, connects intelligent number and adopts the subsystem output terminal.
2. the platen press mortar strength detector of selecting according to claim 1, it is characterized in that described concentric centering self-level(l)ing system is made up of fixture, back-moving spring, cancave cambered surface piece, convex globoidal piece, the right side is selected and is pressed circle concora crush head to be installed on the center of convex globoidal piece, the size of cancave cambered surface piece and convex globoidal piece matches, the cancave cambered surface piece is corresponding with convex globoidal piece center, and cancave cambered surface piece and convex globoidal piece concentric circles are provided with back-moving spring is installed in cancave cambered surface piece and convex globoidal piece by fixture periphery.
3. the platen press mortar strength detector of selecting according to claim 2 is characterized in that leaving the gap between described cancave cambered surface piece and the convex globoidal piece.
4. the platen press mortar strength detector of selecting according to claim 2 is characterized in that optional symmetrical quadrilateral of described cancave cambered surface piece and convex globoidal piece or circle.
5. the platen press mortar strength detector of selecting according to claim 1, it is characterized in that described a left side select press circle concora crush head with right select press round concora crush head corresponding below be provided with the dust stratification pad, and be arranged on the reaction frame base.
6. the platen press mortar strength detector of selecting according to claim 5 is characterized in that described dust stratification pad is box-like or shim-like.
7. the platen press mortar strength detector of selecting according to claim 1 and 2 is characterized in that the corresponding front end of selecting pressure circle concora crush head in the described left and right sides is protruding column right cylinder.
8. the platen press mortar strength detector of selecting according to claim 7 is characterized in that the described protruding column circular flat front end of pressing round concora crush head of selecting is provided with the anti-strange abnormal bed course of stress.
9. the platen press mortar strength detector of selecting according to claim 8 is characterized in that described both sides are selected to press circle concora crush head to change in pairs.
10. the platen press mortar strength detector of selecting according to claim 1 is characterized in that described charging handle is arranged to circle wheel type, straight thread is set and sagging concave arc is set at circle wheel edge.
11. the platen press mortar strength detector of selecting according to claim 7, it is characterized in that the corresponding pressure circle concora crush head of selecting in the described left and right sides, a left side is selected and is pressed circle concora crush head front end projection column cylinder length to select the cylindrical length of pressure circle concora crush head front end projection column greater than the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485204U CN201508297U (en) | 2009-10-23 | 2009-10-23 | Mortar strength detector using a selecting and pressing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485204U CN201508297U (en) | 2009-10-23 | 2009-10-23 | Mortar strength detector using a selecting and pressing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508297U true CN201508297U (en) | 2010-06-16 |
Family
ID=42469424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200485204U Expired - Lifetime CN201508297U (en) | 2009-10-23 | 2009-10-23 | Mortar strength detector using a selecting and pressing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201508297U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114606A (en) * | 2010-12-20 | 2011-07-06 | 广东科达机电股份有限公司 | Novel alignment device |
| CN102042932B (en) * | 2009-10-23 | 2013-12-04 | 江苏省建筑科学研究院有限公司 | Instrument for detecting mortar strength by pressure selecting method |
| CN102854130B (en) * | 2012-08-23 | 2015-05-13 | 铁道第三勘察设计院集团有限公司 | Combined type loading assembly for rock lateral confined expansion test |
| CN107677545A (en) * | 2017-08-30 | 2018-02-09 | 上海交通大学 | It is a kind of to be used for industry CT original position stretching or the manual loading device of compression test |
-
2009
- 2009-10-23 CN CN2009200485204U patent/CN201508297U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042932B (en) * | 2009-10-23 | 2013-12-04 | 江苏省建筑科学研究院有限公司 | Instrument for detecting mortar strength by pressure selecting method |
| CN102114606A (en) * | 2010-12-20 | 2011-07-06 | 广东科达机电股份有限公司 | Novel alignment device |
| CN102854130B (en) * | 2012-08-23 | 2015-05-13 | 铁道第三勘察设计院集团有限公司 | Combined type loading assembly for rock lateral confined expansion test |
| CN107677545A (en) * | 2017-08-30 | 2018-02-09 | 上海交通大学 | It is a kind of to be used for industry CT original position stretching or the manual loading device of compression test |
| CN107677545B (en) * | 2017-08-30 | 2020-05-05 | 上海交通大学 | Manual loading device for industrial CT (computed tomography) in-situ tensile or compression test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102042932B (en) | Instrument for detecting mortar strength by pressure selecting method | |
| CN201508297U (en) | Mortar strength detector using a selecting and pressing method | |
| CN204269483U (en) | A kind of concrete block pressure test device | |
| CN106769847B (en) | FRP sticking strength comprehensive tester | |
| CN209979371U (en) | Building material hardness bearing capacity detection device | |
| CN105675419A (en) | Determination method of material's uniaxial constitutive relation through biconical indentation prediction | |
| CN109141960A (en) | A kind of in-situ test method obtaining rock parameter | |
| CN203949656U (en) | A kind of cylinder specimen radial deformation measurement mechanism | |
| CN103604701A (en) | Device and method for detecting concrete compressive strength of in-service electric pole | |
| CN103149347B (en) | Casting asphalt concrete multi-function test and formation apparatus | |
| CN204228525U (en) | A kind of concrete anti-folding and anti-pressing integration test machine | |
| CN203616239U (en) | Simple rock and concrete cement plane cutting test device | |
| CN202101626U (en) | Comparator | |
| CN103575651A (en) | Masonry straight joint tangential bonding strength testing instrument and testing method | |
| CN203866679U (en) | Gage for testing thickness of cement concrete pavement mortar | |
| CN207798550U (en) | A kind of auxiliary detection device of reisilometer | |
| CN113504129B (en) | Reinforcing bar bending test device | |
| CN206740493U (en) | A kind of adjustable thickness water-repellent paint sample preparation sampler | |
| CN214201007U (en) | Wireless concrete strength detector for house safety detection | |
| CN203551401U (en) | Instrument for detecting concrete crushing strength of in-service electric pole | |
| CN204177669U (en) | A kind of concrete bouncing back instrument vertical attack detection faces servicing unit | |
| CN208443659U (en) | A kind of portable rock digital display point loading instrument | |
| CN113514356A (en) | Power station boiler heating surface pipeline hardness detection device and detection method | |
| CN2323368Y (en) | Masonry mortar strength point load tester | |
| CN205941181U (en) | Mixture splitting strength testing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100616 Effective date of abandoning: 20091023 |
|
| RGAV | Abandon patent right to avoid regrant |