CN105150362B - A kind of device and its application method for being used to produce cement mortar man-made fracture - Google Patents
A kind of device and its application method for being used to produce cement mortar man-made fracture Download PDFInfo
- Publication number
- CN105150362B CN105150362B CN201510640437.6A CN201510640437A CN105150362B CN 105150362 B CN105150362 B CN 105150362B CN 201510640437 A CN201510640437 A CN 201510640437A CN 105150362 B CN105150362 B CN 105150362B
- Authority
- CN
- China
- Prior art keywords
- cement mortar
- insertion piece
- support
- die trial
- piece
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a kind of device and its application method for being used to produce cement mortar man-made fracture, the device includes the support for being positioned over cement mortar test mould upper surface and several are used to be inserted into insertion piece in cement mortar, insertion piece is movably fixed on support, the support includes the supporting plate by upright supports, joint-cutting is provided with the supporting plate, insertion piece passes through joint-cutting, beneficial effects of the present invention：1) fix insertion piece by setting support, avoid inserting piece because of the flowing of mortar and caused by move, it is final caused by crack it is more accurate, will not be deformed；Total can form the accurate crack of shape and position, and fabrication schedule is simple, and it is convenient to remove device；Device is repeatable to be utilized, and cost is cheap, while reclaims conveniently.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of device for being used to produce cement mortar man-made fracture
And its application method.
Background technology
Cement mortar is as a kind of fragile material, and after it has been formed, the generation and development in crack are to cause its damage inactivation
The main reason for.Therefore the mechanism that cement mortar crack produces and developed is studied, that is, research cement mortar fracture mechanics is
It is highly desirable.Increasing scholar had successively carried out the research of cement mortar fracture mechanics in recent years, was typically direct
Flaky material is inserted in freshly mixed mortar to be studied after forming man-made fracture, so deficiency existing for operation is iron plate
There is no fixing device, because mortar has mobility, easily drive iron plate to be moved so that crack becomes caused by script
Shape, so it is unfavorable for follow-up experiment；Meanwhile the cement mortar for newly coordinating, it is also critically important to study its cracking resistance seam ability
's.
Therefore need to study a kind of device for being used to produce cement mortar man-made fracture.
The content of the invention
The purpose of the present invention is exactly to solve the above problems, there is provided one kind can form stable crack in cement mortar
Be used for produce the device and its application method of cement mortar man-made fracture.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of device for being used to produce cement mortar man-made fracture, including it is positioned over the support of cement mortar test mould upper surface
With several for the insertion piece being inserted into cement mortar, insert piece and be movably fixed on support, the setting of support can not only
Stable insertion piece so that the crack of formation is stable, and contributes to the accurate position for determining insertion piece.
Further, the support includes the supporting plate by upright supports, is worn on the supporting plate provided with joint-cutting, insertion piece
Joint-cutting is crossed, supporting plate has setting thickness, is thus inserted into piece and entered by joint-cutting in cement mortar, the fracture shape of formation
It is more regular.
Further, the support includes the support bar by upright supports, and several fastening knots are provided with support bar
Structure, fastening structure connection insertion piece and support bar, the fixation of insertion piece and support bar is realized by fastening structure.
Further, the fastening structure is fixed on the bandage on the support bar, the more convenient fixation of bandage for centre
Insert piece and support bar.
Further, the fastening structure is bolt and nut.
Further, the supporting plate is transparent lucite, and transparent supporting plate is easy to the cement bonded sand from top
The form of slurry.
Further, the insertion piece is rectangle or waveform or zigzag, and insertion piece of different shapes forms not
The crack of similar shape.
Further, it is coated with the outside of the insertion piece for preventing from inserting piece and the diaphragm of cement mortar bonding
For producing the application method of cement mortar man-made fracture, comprise the following steps that：
1) raw material needed for making cement mortar is weighed according to match ratio；
2) stirring obtains cement mortar as requested；
3) cement mortar is poured into die trial, vibration moulding simultaneously scrapes flat surface；
4) in insertion piece outer wrap diaphragm；
5) the insertion piece for being enclosed with diaphragm is penetrated into support；
6) support is placed on to the top of die trial upper surface, mobile support make it that inserting piece is inserted into cement mortar, most
The segment distance of after-poppet interval upper surface one；
7) after die trial being positioned over into fog room for a period of time, insertion piece is taken out above die trial, takes support away, removes examination
Mould, obtain the cement mortar specimen with crack.
Further, it is fixed in the step 5) by fastening structure by piece is inserted with support.
The present invention operation principle be：Because freshly mixed mortar has a mobility, insertion piece passes through support, by support come
Fixed insertion piece, even if mortar flows, also because the setting insertion piece of support will not be shifted or tilted.Support can be
Bright lucite, or the support bar with fastening structure, it can effectively stablize insertion piece；Inserted using the device by piece is inserted
Enter into cement mortar, after cement mortar shaping, take out insertion piece and form crack.
Compared with prior art, the present invention has advantages below：
1) fix insertion piece by setting support, avoid inserting piece because of the flowing of mortar and caused by move, final production
Raw crack is more accurate, will not be deformed.
2) total can form the accurate crack of shape and position, and fabrication schedule is simple, and it is convenient to remove device；Device can
Recycling, cost is cheap, while reclaims conveniently.
Brief description of the drawings
Fig. 1 is the top view of supporting plate in embodiment 1 in the present invention；
Fig. 2 is the side view of supporting plate in embodiment 1 in the present invention；
Fig. 3 is the side view of device in embodiment 2 in the present invention；
Wherein, 1. joint-cutting, 2. supporting plates, 3. columns, 4. support bars, 5. bandages.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of device for being used to produce cement mortar man-made fracture, including it is positioned over the support of cement mortar test mould upper surface
With several for the insertion piece being inserted into cement mortar, insert piece and be movably fixed on support, the setting of support can not only
Stable insertion piece so that the crack of formation is stable, and contributes to the accurate position for determining insertion piece.
As illustrated in fig. 1 and 2, the support is included by the supporting plates of upright supports, on the supporting plate provided with 3 joint-cuttings 1,
The length of joint-cutting 1 is 1.1mm, and width 0.6mm, the intermediate point of joint-cutting 1 is all on axis along its length, and and supporting plate
2 axis is into 30 °, and the midpoint of middle joint-cutting 1 is on the axis along the width unwrapping wire of supporting plate 2, during another two joint-cuttings 1 are located at respectively
Between joint-cutting 1 both sides, respectively apart from the midpoint of intermediate cracking 1 at 46mm, it is for follow-up concrete crack experiment so to set；
Insertion piece passes through joint-cutting 1, and joint-cutting 1 is cut out with laser cutting machine, and supporting plate 2 has setting thickness, is thus inserted into piece and leads to
Cross joint-cutting to enter in cement mortar, the fracture shape of formation is more regular.
The supporting plate 2 and column 3 are transparent lucite, and column 3 and supporting plate 2 form the knot of a stool shape
Structure, transparent supporting plate 2 are easy to the form of the cement mortar from top.
The insertion piece is rectangle or waveform or zigzag, and insertion piece is iron plate, and the width of iron plate is 10mm, thickness
It is 0.5mm, the length of iron plate 10mm, insertion piece of different shapes more than mortar die trial depth form crack of different shapes.
It is coated with the outside of the insertion piece for preventing from inserting piece and the diaphragm of cement mortar bonding, diaphragm is
Preservative film, because preservative film will not be bonded together with cement mortar, it is easy to cement mortar to take out insertion piece, Er Qiebao after being molded
Fresh film is cheap, wraps up conveniently, use cost is relatively low.
For producing the application method of cement mortar man-made fracture, comprise the following steps that：
1) raw material needed for making cement mortar is weighed according to match ratio, specifically, using planetary mortar mixer, is added
Normal sand 1350g, reference cement 675g, stirs 0.5min slowly, pours into water 270g, stirs 0.5min slowly, then stir 2min soon.
2) stirring obtains cement mortar as requested；
3) cement mortar is poured into die trial, vibration moulding simultaneously scrapes flat surface；
4) in insertion piece outer wrap diaphragm；
5) the insertion piece for being enclosed with diaphragm is penetrated into the joint-cutting 1 of supporting plate 2, be inserted vertically into, and be inserted into die trial
Bottom.
6) supporting plate 2 is placed on to the top of die trial upper surface by column 3, two columns respectively in the both sides of die trial,
Mobile supporting plate 2 causes insertion piece to be inserted into cement mortar, the last segment distance of spacer support frame upper surface one；
7) after die trial being positioned over into fog room 24h, insertion piece is taken out above die trial, takes support away, die trial is removed, obtains
Cement mortar specimen with crack.
Embodiment 2
A kind of device for being used to produce cement mortar man-made fracture, including it is positioned over the support of cement mortar test mould upper surface
With several for the insertion piece being inserted into cement mortar, insert piece and be movably fixed on support, the setting of support can not only
Stable insertion piece so that the crack of formation is stable, and contributes to the accurate position for determining insertion piece.
As shown in figure 3, the support includes the support bar 4 supported by column 3, it is tight that several are provided with support bar 4
Fixing structure, fastening structure connection insertion piece and support bar 4, the fixation of insertion piece and support bar 4 is realized by fastening structure, described
Fastening structure is fixed on the bandage 5 on the support bar 4, the more convenient fixed insertion piece of bandage 5 and support bar 4 for centre.
The insertion piece is rectangle or waveform or zigzag, and insertion piece is iron plate, and insertion piece of different shapes is formed
Crack of different shapes.
It is coated with the outside of the insertion piece for preventing from inserting piece and the diaphragm of cement mortar bonding, diaphragm is
Preservative film, because preservative film will not be bonded together with cement mortar, it is easy to cement mortar to take out insertion piece, Er Qiebao after being molded
Fresh film is cheap, wraps up conveniently, use cost is relatively low.
For producing the application method of cement mortar man-made fracture, comprise the following steps that：
1) raw material needed for making cement mortar is weighed according to match ratio；
2) stirring obtains cement mortar as requested；
3) cement mortar is poured into die trial, vibration moulding simultaneously scrapes flat surface；
4) in insertion piece outer wrap diaphragm；
5) the insertion piece for being enclosed with diaphragm is fixed by bandage 5 and support bar 4；
6) support bar 4 is placed on to the top of die trial upper surface by column 3, mobile support bar 4 causes insertion piece insertion
Into cement mortar, last support bar 4 is spaced the segment distance of upper surface one；
7) after die trial being positioned over into fog room 24h, insertion piece is taken out above die trial, takes support away, die trial is removed, obtains
Cement mortar specimen with crack.
Embodiment 3
A kind of device for being used to produce cement mortar man-made fracture, including it is positioned over the support of cement mortar test mould upper surface
With several for the insertion piece being inserted into cement mortar, insert piece and be movably fixed on support, the setting of support can not only
Stable insertion piece so that the crack of formation is stable, and contributes to the accurate position for determining insertion piece.
The support includes the support bar by upright supports, and several fastening structures, fastening knot are provided with support bar
Structure connection insertion piece and support bar, the fixation of insertion piece and support bar are realized by fastening structure, the fastening structure is bolt
Nut.
The insertion piece is rectangle or waveform or zigzag, and insertion piece is iron plate, and insertion piece of different shapes is formed
Crack of different shapes.
It is coated with the outside of the insertion piece for preventing from inserting piece and the diaphragm of cement mortar bonding, diaphragm is
Preservative film, because preservative film will not be bonded together with cement mortar, it is easy to cement mortar to take out insertion piece, Er Qiebao after being molded
Fresh film is cheap, wraps up conveniently, use cost is relatively low.
For producing the application method of cement mortar man-made fracture, comprise the following steps that：
1) raw material needed for making cement mortar is weighed according to match ratio；
2) stirring obtains cement mortar as requested；
3) cement mortar is poured into die trial, vibration moulding simultaneously scrapes flat surface；
4) in insertion piece outer wrap diaphragm；
5) the insertion piece for being enclosed with diaphragm is fixed by bolt and nut and support bar；
6) support bar is placed on to the top of die trial upper surface by column, mobile support bar make it that inserting piece is inserted into water
In cement mortar, the segment distance of last support bar interval upper surface one；
7) after die trial being positioned over into fog room 24h, insertion piece is taken out above die trial, takes support away, die trial is removed, obtains
Cement mortar specimen with crack.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (2)
1. the application method for producing cement mortar man-made fracture, it is characterised in that comprise the following steps that：
1) raw material needed for making cement mortar is weighed according to match ratio；
2) stirring obtains cement mortar as requested；
3) cement mortar is poured into die trial, vibration moulding simultaneously scrapes flat surface；
4) in insertion piece outer wrap diaphragm；
5) the insertion piece for being enclosed with diaphragm is penetrated into support；
6) support is placed on to the top of die trial upper surface, mobile support make it that inserting piece is inserted into cement mortar, finally props up
The segment distance of frame interval upper surface one；
7) after die trial being positioned over into fog room for a period of time, insertion piece is taken out above die trial, takes support away, die trial is removed, obtains
To the cement mortar specimen with crack；
The support includes the supporting plate by upright supports, passes through joint-cutting provided with joint-cutting, insertion piece on the supporting plate.
2. application method as claimed in claim 1, it is characterised in that in the step 5) by fastening structure will insert piece with
Support is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640437.6A CN105150362B (en) | 2015-09-30 | 2015-09-30 | A kind of device and its application method for being used to produce cement mortar man-made fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640437.6A CN105150362B (en) | 2015-09-30 | 2015-09-30 | A kind of device and its application method for being used to produce cement mortar man-made fracture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105150362A CN105150362A (en) | 2015-12-16 |
| CN105150362B true CN105150362B (en) | 2017-11-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510640437.6A Expired - Fee Related CN105150362B (en) | 2015-09-30 | 2015-09-30 | A kind of device and its application method for being used to produce cement mortar man-made fracture |
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| CN (1) | CN105150362B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106769284B (en) * | 2016-11-29 | 2019-05-31 | 南华大学 | A method of based on cement mortar material preparation crack cube model containing closure |
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|---|---|---|---|---|
| JP2006337266A (en) * | 2005-06-03 | 2006-12-14 | Fuji Electric Holdings Co Ltd | Detection method of glass substrate film thickness and method for forming thin film of glass substrate |
| CN101462854A (en) * | 2009-01-12 | 2009-06-24 | 山东大学 | Brittle material for manufacturing rocks and preparation of specimen prefabricated crack thereof |
| CN102491689A (en) * | 2011-12-07 | 2012-06-13 | 湖南科技大学 | Method for preparing quasi-rock material test specimen containing random multi-crack body |
| CN102519767A (en) * | 2011-12-16 | 2012-06-27 | 武汉大学 | Mould for manufacturing fissure surface of rock like test block |
| CN103196717A (en) * | 2013-03-07 | 2013-07-10 | 同济大学 | Rock-similar sample mold capable of accurately positioning filling-type prefabricated cracks |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN104865108A (en) * | 2015-01-13 | 2015-08-26 | 中国水利水电科学研究院 | Sample production apparatus suitable for jointed rock direct shear test, sample production and shearing apparatus, and sample production and shearing test method |
| CN204955071U (en) * | 2015-09-30 | 2016-01-13 | 山东大学 | A device for producing cement mortar man -made fracture |
-
2015
- 2015-09-30 CN CN201510640437.6A patent/CN105150362B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006337266A (en) * | 2005-06-03 | 2006-12-14 | Fuji Electric Holdings Co Ltd | Detection method of glass substrate film thickness and method for forming thin film of glass substrate |
| CN101462854A (en) * | 2009-01-12 | 2009-06-24 | 山东大学 | Brittle material for manufacturing rocks and preparation of specimen prefabricated crack thereof |
| CN102491689A (en) * | 2011-12-07 | 2012-06-13 | 湖南科技大学 | Method for preparing quasi-rock material test specimen containing random multi-crack body |
| CN102519767A (en) * | 2011-12-16 | 2012-06-27 | 武汉大学 | Mould for manufacturing fissure surface of rock like test block |
| CN103196717A (en) * | 2013-03-07 | 2013-07-10 | 同济大学 | Rock-similar sample mold capable of accurately positioning filling-type prefabricated cracks |
| CN104865108A (en) * | 2015-01-13 | 2015-08-26 | 中国水利水电科学研究院 | Sample production apparatus suitable for jointed rock direct shear test, sample production and shearing apparatus, and sample production and shearing test method |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN204955071U (en) * | 2015-09-30 | 2016-01-13 | 山东大学 | A device for producing cement mortar man -made fracture |
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| Publication number | Publication date |
|---|---|
| CN105150362A (en) | 2015-12-16 |
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Granted publication date: 20171110 Termination date: 20190930 |