CN110333125A - Concrete sample mold and preparation method with pre-fabricated inner cracked concrete test specimen - Google Patents
Concrete sample mold and preparation method with pre-fabricated inner cracked concrete test specimen Download PDFInfo
- Publication number
- CN110333125A CN110333125A CN201910579550.6A CN201910579550A CN110333125A CN 110333125 A CN110333125 A CN 110333125A CN 201910579550 A CN201910579550 A CN 201910579550A CN 110333125 A CN110333125 A CN 110333125A
- Authority
- CN
- China
- Prior art keywords
- concrete sample
- concrete
- mold
- crack
- sample mold
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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)
- Sampling And Sample Adjustment (AREA)
Abstract
Preparation method the invention discloses concrete sample mold and with pre-fabricated inner cracked concrete test specimen, the concrete sample mold is by including one piece of bottom plate and four blocks of side plates, the layout point aperture being arranged according to different angle is provided on two blocks of mutual corresponding side plates, concrete sample is the preparation method comprises the following steps: (1) passes through the aperture that both side plate is accomplished fluently according to angle, with filament；(2) mica sheet cut is pasted between two filaments；(3) concrete is poured into concrete sample mold to filling it up with, vibrating has slurries outflow to die surface, cuts filament, is demoulded in temperature controlled compartment；(4) maintenance processing is carried out to get the concrete sample with pre-fabricated inner crack to gained concrete sample.Production method of the present invention is convenient, structure is simple, reusable, at low cost, the features such as inclination angle, width x length of the adjustable internal fissure of the concrete sample of production, is of great significance for the long-term behaviour evolution of apparent concrete component.
Description
Technical field
The present invention relates to reinforced concrete structure recovery technique field, more particularly to a kind of concrete sample mould
Tool and the preparation method with pre-fabricated inner cracked concrete test specimen.
Background technique
It is influenced by pouring quality, external environment and load, aggregate and mortar property, inside concrete can generate size not
One, the presence in the different crack of character, internal crack destroys the integrality of concrete component, and significantly affects its long-term strength
And durability.Due to the geometry of internal crack and the difference of space distribution rule, intensity, the deformation for resulting in concrete are special
Property, there are the notable difference (expansions of concrete structure member crevices of the such as Zhu little Ting, Wang Xiangdong, Wu Jing based on defect theory for failure mode
Exhibition research [J] SanXia University journal (natural science edition), 2014,36 (3)), therefore, internal fissure is disclosed to concrete mechanics
The influence of characteristic is of great significance.
Since fractured zones are without significant rule, in Practical Project scene, it is difficult to obtain ideal band by sampling means
The concrete sample in crack.
In laboratory, domestic and foreign scholars mainly have following three kinds to prefabricated cracked concrete test specimen production method: patent
Number CN109098470A (the penetration type crack manufacturing equipment and manufacturing method of concrete block) discloses a kind of shrinkage method, i.e., to mixed
Solidifying soil block carries out suddenly cold and hot, it is made to expand with heat and contract with cold to form crack, but the method can only form shallow-layer in concrete structural surface
Local cracks, internal fissure can not be formed, can not accurate control critical eigenvalue size and Orientation, can not pre-fabricated inner it is small
Crack；Patent No. CN204269447U (a kind of device for making concrete sample crack) disclose it is a kind of using pressurized equipment,
Concrete block both ends are shelved to the hanging section that middle section is hanging, among pressurized equipment pushing concrete block, are broken into two by force
It cuts, then by the section of two-section again split, it is made to draw close the method to form penetration type crack as far as possible, the defect of the method exists
In: the two-section concrete after breaking is no longer on same straight line, and in practical operation, it is completely right by the section of the two to be difficult
It is quasi-；More important is it is to break concrete along width direction and need section again split, width side along its length
Will lead to two sections to hard pressure, deformation occurs in the width direction, so that the concave-convex particle of two sections no longer coincide, in this way, very
It is difficult or even can not be pieced together at all by what two sections fitted together perfectly along its length again, can not produce naturally agree with it is true
The internal fissure of real form；Patent No. CN206057056U (a kind of for making the tool in the prefabricated crack of concrete test block) and
CN208005931U (precast concrete test block crack mold) discloses a kind of patterning method: not solidified mixed by inserting the blade into
Open fracture is formed in solidifying soil mixture, but the method is during the experiment, testing crew is difficult accurately to control blade in test specimen
In length and angle, the crack qualification rate that this allows for precasting is lower, can make a big impact to test result, meanwhile,
Due to blade plug-in effect, fracture pattern and true internal fissure have notable difference.In summary analysis it can be concluded that, state at present
It is inside and outside to containing crannied concrete sample production method, based on surface crack, and internal fissure makes generally existing difficulty
Greatly, the defects of obvious with practical crack difference.
Therefore, how a kind of band internal fissure coagulation easy to process, structure is simple, reusable, at low cost is provided
The problem of native test specimen is those skilled in the art's urgent need to resolve.
Summary of the invention
The purpose of the present invention is to solve existing molds cannot conveniently make with pre-fabricated inner crack coagulation
The problem of native test specimen, provides a kind of concrete sample mold to prepare the internal fissure with different angle, different geometrical size
Concrete sample, this method is easy to operate, at low cost, easy to process, can using the concrete sample that this method is made
With essential characteristics such as the inclination angle, width, the length that adjust pre-fabricated inner crack, different rulers can be disclosed by carrying out test specimen load test
It is very little, the influence of the internal fissure of different angle to the deformation and failure mode of concrete, for the long-term of apparent concrete sample
Property evolution is of great significance.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of concrete sample mold, the concrete sample mold include one piece of bottom plate and four blocks of side plates；
The side plate is removably connected to four sides of the bottom plate；Difference is marked on mutual corresponding two side plates
The position of crack angle layout point, while the layout point on the side plate is upper and lower two row, is in same with a line layout point
On one horizontal line, two row layout points are on same vertical line the same side plate up and down, the setting-out points of two blocks of side plates
It measures identical with position and corresponds；The layout point is through-hole.
Preferably, above-mentioned one piece of bottom plate and four blocks of side plates are by a kind of intensity height, good toughness, easily processed into type, quality
ABS material that is hard and carrying out crack arrangement convenient for punching is prepared.
Preferably, above-mentioned crack angle are as follows: the company between two layout points on two side plates in same level
The side plate angulation of line and load action；The crack angular range is 0-90 °.
Preferably, above-mentioned concrete sample mold further includes bolt, at least 17, the bolt, is used for fixed side panel and bottom
The connection of plate.
Preferably, above-mentioned concrete sample mould inner wall be coated with one layer of silicone oil mold release agent (must with fine, soft fur brush either it is thin
Cotton is smeared uniform, it is ensured that the plane smoothness of sample after maintenance molding).
A kind of preparation method of the concrete sample with pre-fabricated inner crack is prepared using above-mentioned concrete sample mold
Concrete sample with pre-fabricated inner crack, it is specific the preparation method is as follows:
(1) it in above-mentioned concrete sample mold, is each passed through according to required crack angle and to be accomplished fluently with two filaments
Aperture, tension is exceptionally straight, makes two thin line of parallel, filament end is fixed on concrete sample mold outer surface, as needed
Mica sheet is cut, the mica sheet cut is pasted between two filaments；
(2) concrete mix being stirred is poured into the concrete sample mold in the step (1), until concrete tries
After part mold is filled it up with, putting to vibrate on a vibration table has slurries outflow to die surface, cuts outside concrete sample mold later
The filament on surface is placed in temperature controlled compartment, carries out demoulding processing within 24-48h, obtain concrete sample；
(3) by concrete sample maintenance 27-29d obtained in the step (2) to get the coagulation with pre-fabricated inner crack
Native test specimen.
Preferably, the natural mica piece that the mica sheet in the step (1) is selected with a thickness of 0.1-0.2mm, mica sheet
Distance between not less than two filaments of width.
Preferably, the filament in the step (1) selects filament (this filament that ductility is low, intensity is low, wearability is good
It can guarantee the accuracy of prefabricated fractuer direction, while guarantee it to concrete sample integral strength without other influences).
Preferably, the natural mica piece that the mica sheet in the step (1) is selected with a thickness of 0.1-0.2mm, mica sheet
(the mica sheet intensity is extremely low, can achieve the purpose for simulating true crack, while energy for distance between not less than two filaments of width
Enough ensure that it influences concrete sample integral strength without others).
It preferably, is the accuracy for guaranteeing experimental data, the test specimen after demoulding will be in standard conditions (control temperature: 20 ± 2
DEG C, control humidity >=95%) under conserve, curing time 27-29d, the record of test specimen production and maintenance also should comply with " common
Mechanical performance of concrete test method standard " GB/T50081-2002 code requirement.
It can be seen via above technical scheme that compared with prior art, the present invention has the beneficial effect that:
1. the inclination angle in the adjustable pre-fabricated inner crack of the concrete sample in pre-fabricated inner crack prepared by the present invention, width
The essential characteristics such as degree, length；
2. the present invention is easy to process, structure is simple, reusable, at low cost and processing flow is succinct；
3., can be with the property evolution mechanism of concrete structure under apparent longtime running by refining experimental program of the present invention.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is concrete sample mold structure diagram prepared by the embodiment of the present invention 1；
Fig. 2 is concrete sample mold A side plate schematic diagram prepared by the embodiment of the present invention 1；
Fig. 3 is concrete sample mold C side plate schematic diagram prepared by the embodiment of the present invention 1；
Fig. 4 is concrete sample die bottom plate schematic diagram prepared by the embodiment of the present invention 1；
Fig. 5 for two filaments in the embodiment of the present invention 2 and load action section (C side plate) at 0 ° of angle schematic diagram；
Fig. 6 for two filaments in the embodiment of the present invention 3 and load action section (C side plate) at 30 ° of angles schematic diagram；
Schematic diagram of the Fig. 7 for two filaments and load action section (B side plate) angle at 45 ° in the embodiment of the present invention 4；
Fig. 8 for two filaments in the embodiment of the present invention 5 and load action section (B side plate) at 60 ° of angles schematic diagram；
Fig. 9 for two filaments in the embodiment of the present invention 6 and load action section (B side plate) schematic diagram at an angle of 90；
Figure 10 is the concrete sample prepared to the embodiment of the present invention 1 and embodiment 3 and embodiment 7 prepare it is common complete
The stress-strain curve diagram of whole concrete sample.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
(1) the dismountable concrete sample dieparts of pre-production, insole board are as shown in Figure 4: upper thickness is
10mm, having a size of 150mm × 150mm, lower thickness 5mm, having a size of 160mm × 180mm；2 pieces are used as front side board and rear side
The rectangular slab of plate is as shown in Figure 2: with a thickness of 5mm, having a size of 170mm × 160mm；Other 2 pieces are used as left plate and right side plate
Rectangular slab it is as shown in Figure 3: outer layer thickness 5mm, having a size of 160mm × 160mm, internal layer with a thickness of 10mm, having a size of
150mm×160mm；The concrete sample made from above-mentioned accessory is having a size of 150mm × 150mm × 150mm (5 pieces in the present invention
The thickness and size and on-fixed of plate, the thickness of plate can be according to requiring arbitrarily to change, and the size of plate can also be according to concrete
The size of test specimen requires any change).
(2) according to test requirements document, wherein on mutual corresponding two blocks of side plates with pencil mark different angle (including 0 °,
30 °, 45 °, 60 °, 90 °, the angle in the present invention can be the unspecified angle between 0 ° -90 °, these angles of the present embodiment setting
Degree is only because convenient for calculate distance) layout point position, using the center of interior plate as origin, between different angle
Away from being marked on the two boards of inside with pencil and mark the positions of 10 points respectively, the present embodiment designs the spacing of a1 and a2, a2 and a3
It is 67mm from the distance for 43mm, a2 to top margin and a5 to bottom edge, the distance between a1, a2, a3 and a4, a5, a6 are that 26mm is (right
Answering face is b1, b2, b3, b4, b5, b6), it is A0, A1, a0, a7 with side plate gap and the upper and lower horizontal intersection point of two rows layout point
Wherein the distance of A0 and a1, a3 and A1 are 32mm (corresponding surface B0, B1, b0, b7).As shown in Figure 2 (present invention in each layout point
Position and on-fixed, can according to need the position of layout point is arranged).
(3) it is punched on the two boards marked, uses diameter for the drill bit of 1.5mm；
(4) dismountable concrete sample mold is assembled as shown in Figure 1, it is 4mm that corresponding two sides, which are all made of diameter,
Bolt be fixed, bolt location a-g, then concrete sample mould inner wall smear one layer of silicone oil mold release agent.
Embodiment 2
(1) it is passed through according to predetermined angle with the filament that diameter is 0.2mm using the concrete mold made in embodiment 1
The aperture that two sides are accomplished fluently, is straightened and tightens, and filament end is sticked on mold outer panel with adhesive property good glue；Specifically
Angle arrangement is as follows:
2 filaments are each passed through a2b2, a5b5, load action on the section C, it can be achieved that 0 ° of inclination angle, as shown in Figure 5；
(2) mica sheet selects natural mica piece that mica sheet is cut to width 30mm, length 120mm with a thickness of 0.1mm,
The mica sheet cut is fastened with glue at the middle part of two filaments；
(3) concrete mix being stirred is poured into concrete sample mold, until concrete sample mold is filled it up with
Afterwards, put to vibrate on a vibration table and have slurries outflow to abrasive surface, cut filament later, be placed in temperature controlled compartment, for 24 hours within taken off
Mould processing；
(4) 27d is conserved, finally polishing is smooth test specimen to get the concrete sample with pre-fabricated inner crack.
Embodiment 3
(1) it is passed through according to predetermined angle with the filament that diameter is 0.2mm using the concrete mold made in embodiment 1
The aperture that two sides are accomplished fluently, is straightened and tightens, and filament end is sticked on mold outer panel with adhesive property good glue；Specifically
Angle arrangement is as follows:
2 filaments are each passed through a3b1, b6b4, load action on the section C, it can be achieved that 30 ° of inclination angles, as shown in Figure 6；
(2) mica sheet selects natural mica piece that mica sheet is cut to width 35mm, length 120mm with a thickness of 0.1mm,
The mica sheet cut is fastened with glue at the middle part of two filaments；
(3) concrete mix being stirred is poured into concrete sample mold, until concrete sample mold is filled it up with
Afterwards, put to vibrate on a vibration table and have slurries outflow to abrasive surface, cut filament later, be placed in temperature controlled compartment, for 24 hours within taken off
Mould processing；
(4) 28d is conserved, finally polishing is smooth test specimen to get the concrete sample with pre-fabricated inner crack.
Embodiment 4
(1) it is passed through according to predetermined angle with the filament that diameter is 0.2mm using the concrete mold made in embodiment 1
The aperture that two sides are accomplished fluently, is straightened and tightens, and filament end is sticked on mold outer panel with adhesive property good glue；Specifically
Angle arrangement is as follows:
2 filaments are each passed through in the gap (A0B0, a0b0) between symmetrical two plate, load action, can on B-section
Realize 45 ° of inclination angles, as shown in Figure 7；
(2) mica sheet selects natural mica piece that mica sheet is cut to width 40mm, length 110mm with a thickness of 0.2mm,
The mica sheet cut is fastened with glue at the middle part of two filaments；
(3) concrete mix being stirred is poured into concrete sample mold, until concrete sample mold is filled it up with
Afterwards, it puts to vibrate on a vibration table and has slurries outflow to abrasive surface, cut filament later, be placed in temperature controlled compartment, taken off within 32h
Mould processing；
(4) 29d is conserved under, finally polishing is smooth test specimen to get the concrete sample with pre-fabricated inner crack.
Embodiment 5
(1) it is passed through according to predetermined angle with the filament that diameter is 0.2mm using the concrete mold made in embodiment 1
The aperture that two sides are accomplished fluently, is straightened and tightens, and filament end is sticked on mold outer panel with adhesive property good glue；Specifically
Angle arrangement is as follows:
2 filaments are each passed through a1b3, b4b6, load action on B-section, it can be achieved that 60 ° of inclination angles, as shown in Figure 8；
(2) mica sheet selects natural mica piece that mica sheet is cut to width 35mm, length 120mm with a thickness of 0.1mm,
The mica sheet cut is fastened with glue at the middle part of two filaments；
(3) concrete mix being stirred is poured into concrete sample mold, until concrete sample mold is filled it up with
Afterwards, put to vibrate on a vibration table and have slurries outflow to abrasive surface, cut filament later, be placed in temperature controlled compartment, for 24 hours within taken off
Mould processing；
(4) 28d is conserved, finally polishing is smooth test specimen to get the concrete sample with pre-fabricated inner crack.
Embodiment 6
(1) it is passed through according to predetermined angle with the filament that diameter is 0.2mm using the concrete mold made in embodiment 1
The aperture that two sides are accomplished fluently, is straightened and tightens, and filament end is sticked on mold outer panel with adhesive property good glue；Specifically
Angle arrangement is as follows:
2 filaments are each passed through a2b2, a5b5, load action on B-section, it can be achieved that 90 ° of inclination angles, as shown in Figure 9；
(2) mica sheet selects natural mica piece that mica sheet is cut to width 30mm, length 120mm with a thickness of 0.1mm,
The mica sheet cut is fastened with glue at the middle part of two filaments；
(3) concrete mix being stirred is poured into concrete sample mold, until concrete sample mold is filled it up with
Afterwards, put to vibrate on a vibration table and have slurries outflow to abrasive surface, cut filament later, be placed in temperature controlled compartment, for 24 hours within taken off
Mould processing；
(4) 27d is conserved, finally polishing is smooth test specimen to get the concrete sample with pre-fabricated inner crack.
Embodiment 7
Make common complete concrete sample:
Using the concrete mold made in embodiment 1, the concrete mix being stirred is poured into coagulation earth concrete
In test piece mould, until putting to vibrate on a vibration table has slurries outflow to abrasive surface after concrete sample mold is filled it up with, it is placed in
Temperature controlled compartment, for 24 hours within carry out demoulding processing, conserve 28d, finally polishing is smooth test specimen to get common complete concrete sample.
The concrete sample and common complete concrete sample prepared using the embodiment of the present invention 3 and embodiment 5 is being loaded
Failure test (in order to reduce influence of the error to result, every group is at least made three test specimens and tested) is carried out on testing machine, knot
Fruit is as shown in Figure 10, and as can be seen from Fig., when occurring crack inside concrete sample, the peak stress measured is significantly reduced,
And influence of the crack at the same lower 30 ° of inclination angles of flaw size to concrete is better than 60 ° of inclination angles and the examination of fissureless concrete
Part, i.e., the concrete sample in pre-fabricated inner crack prepared by the present invention, after can really reflecting that crack occurs in inside concrete
Deformation and failure characteristic.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (5)
1. a kind of concrete sample mold, which is characterized in that the concrete sample mold includes one piece of bottom plate and four blocks of side plates；
The side plate is removably connected to four sides of the bottom plate；Different cracks are marked on mutual corresponding two side plates
The position of angle layout point, while the layout point on the side plate is upper and lower two row, is in same water with a line layout point
On horizontal line, the same side plate up and down two row layout points be on same vertical line, the layout point quantity of two blocks of side plates with
Position is identical and corresponds；The layout point is through-hole.
2. according to a kind of concrete sample mold according to claim 1, which is characterized in that the crack angle are as follows: two
The side plate angulation of the line and load action between two layout points on a side plate in same level；It is described
Crack angular range is 0-90 °.
3. according to a kind of concrete sample mold according to claim 1, which is characterized in that the concrete sample mold
It further include bolt, at least 17, the bolt, the connection for fixed side panel and bottom plate.
4. a kind of preparation method of the concrete sample with pre-fabricated inner crack, which is characterized in that using such as claim 1-3 institute
Concrete sample of the concrete sample mold preparation with pre-fabricated inner crack stated, it is specific the preparation method is as follows:
(1) it in the concrete sample mold as described in claim 1-3, is worn respectively according to required crack angle with two filaments
The through-hole accomplished fluently is crossed, tension is exceptionally straight, and make two thin line of parallel, filament end is fixed on concrete sample mold outer surface,
Mica sheet is cut as needed, and the mica sheet cut is pasted between two filaments；
(2) concrete mix being stirred is poured into the concrete sample mold in the step (1), until concrete sample mould
After tool is filled it up with, putting to vibrate on a vibration table has slurries outflow to die surface, cuts concrete sample mold outer surface later
Filament, be placed in temperature controlled compartment, carry out demoulding processing within 24-48h, obtain concrete sample；
(3) concrete sample maintenance 27-29d obtained in the step (2) is tried to get the concrete with pre-fabricated inner crack
Part.
5. a kind of preparation method of concrete sample with pre-fabricated inner crack according to claim 4, which is characterized in that
Mica sheet in the step (1) selects the natural mica piece with a thickness of 0.1-0.2mm, and the width of mica sheet is thin not less than two
Distance between line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910579550.6A CN110333125A (en) | 2019-06-28 | 2019-06-28 | Concrete sample mold and preparation method with pre-fabricated inner cracked concrete test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910579550.6A CN110333125A (en) | 2019-06-28 | 2019-06-28 | Concrete sample mold and preparation method with pre-fabricated inner cracked concrete test specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110333125A true CN110333125A (en) | 2019-10-15 |
Family
ID=68144599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910579550.6A Pending CN110333125A (en) | 2019-06-28 | 2019-06-28 | Concrete sample mold and preparation method with pre-fabricated inner cracked concrete test specimen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110333125A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136768A (en) * | 2020-01-10 | 2020-05-12 | 天津大学 | Concrete composite test piece forming die containing prefabricated interface defects and preparation method |
| CN111595656A (en) * | 2020-06-08 | 2020-08-28 | 天津大学 | Forming die for testing interface fracture performance of dissimilar concrete and preparation method |
| CN111879606A (en) * | 2020-09-15 | 2020-11-03 | 中南大学 | Large-size shale sample true triaxial loading hydraulic fracturing strain measurement device |
| CN113640086A (en) * | 2021-08-27 | 2021-11-12 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete void detection test piece |
| CN113702128A (en) * | 2021-08-27 | 2021-11-26 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete test piece |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519767A (en) * | 2011-12-16 | 2012-06-27 | 武汉大学 | Mould for manufacturing fissure surface of rock like test block |
| CN102759612A (en) * | 2012-07-27 | 2012-10-31 | 广西壮族自治区水利科学研究院 | Multi-angle cement concrete surface crack resistance performance inspection device |
| CN103773056A (en) * | 2014-01-24 | 2014-05-07 | 山东大学 | Preparation method of high-brittleness transparent rock material test piece |
| CN203680625U (en) * | 2014-01-24 | 2014-07-02 | 山东大学 | Die for preparing high-fragility transparent rock material test piece with three-dimensional preformed cracks |
| CN104327472A (en) * | 2014-10-17 | 2015-02-04 | 河海大学 | Manufacturing method of rock-internal-crack-simulated expansion transparent material |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN105806686A (en) * | 2016-03-04 | 2016-07-27 | 中国石油大学(华东) | Mold for manufacturing anchored randomized crossover through crack rock mass |
-
2019
- 2019-06-28 CN CN201910579550.6A patent/CN110333125A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519767A (en) * | 2011-12-16 | 2012-06-27 | 武汉大学 | Mould for manufacturing fissure surface of rock like test block |
| CN102759612A (en) * | 2012-07-27 | 2012-10-31 | 广西壮族自治区水利科学研究院 | Multi-angle cement concrete surface crack resistance performance inspection device |
| CN103773056A (en) * | 2014-01-24 | 2014-05-07 | 山东大学 | Preparation method of high-brittleness transparent rock material test piece |
| CN203680625U (en) * | 2014-01-24 | 2014-07-02 | 山东大学 | Die for preparing high-fragility transparent rock material test piece with three-dimensional preformed cracks |
| CN104327472A (en) * | 2014-10-17 | 2015-02-04 | 河海大学 | Manufacturing method of rock-internal-crack-simulated expansion transparent material |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN105806686A (en) * | 2016-03-04 | 2016-07-27 | 中国石油大学(华东) | Mold for manufacturing anchored randomized crossover through crack rock mass |
Non-Patent Citations (2)
| Title |
|---|
| 李兵 等: "《混凝土冻融蠕变特性及损伤破裂机理研究》", 31 December 2018, 中国矿业大学出版社 * |
| 王精复 等: "《建设工程质量检测抽样方法》", 30 April 2008, 长江出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136768A (en) * | 2020-01-10 | 2020-05-12 | 天津大学 | Concrete composite test piece forming die containing prefabricated interface defects and preparation method |
| CN111136768B (en) * | 2020-01-10 | 2021-07-13 | 天津大学 | Concrete composite test piece forming die containing prefabricated interface defects and preparation method |
| CN111595656A (en) * | 2020-06-08 | 2020-08-28 | 天津大学 | Forming die for testing interface fracture performance of dissimilar concrete and preparation method |
| CN111595656B (en) * | 2020-06-08 | 2021-08-24 | 天津大学 | Forming die for testing interface fracture performance of dissimilar concrete and preparation method |
| CN111879606A (en) * | 2020-09-15 | 2020-11-03 | 中南大学 | Large-size shale sample true triaxial loading hydraulic fracturing strain measurement device |
| CN113640086A (en) * | 2021-08-27 | 2021-11-12 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete void detection test piece |
| CN113702128A (en) * | 2021-08-27 | 2021-11-26 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel pipe concrete test piece |
| CN113640086B (en) * | 2021-08-27 | 2023-12-29 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of steel tube concrete void detection test piece |
| CN113702128B (en) * | 2021-08-27 | 2024-02-23 | 中钢集团郑州金属制品研究院股份有限公司 | Manufacturing method of concrete filled steel tube test piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110333125A (en) | Concrete sample mold and preparation method with pre-fabricated inner cracked concrete test specimen | |
| Zhu et al. | Application of depth-sensing microindentation testing to study of interfacial transition zone in reinforced concrete | |
| Zhang et al. | Experimentally validated multi-scale modelling scheme of deformation and fracture of cement paste | |
| CN106248454B (en) | A kind of production method of transparent petrophysical model structural plane test specimen | |
| Yang et al. | An experimental investigation on strength, deformation and crack evolution behavior of sandstone containing two oval flaws under uniaxial compression | |
| Ghazvinian et al. | A study of the failure mechanism of planar non-persistent open joints using PFC2D | |
| CN104833556B (en) | The preparation method and its sampling die of rock mass of fracture network sample | |
| CN104833555B (en) | The preparation method of interrupted filling fracture rock sample model | |
| CN104833554B (en) | The interrupted preparation method without filling fracture rock sample model | |
| CN108333182B (en) | Method and equipment for capturing crack propagation in concrete impacted by high-pressure water jet | |
| Haeri et al. | Effect of normal load on the crack propagation from pre-existing joints using Particle Flow Code (PFC) | |
| CN101893538B (en) | Self-compacting concrete filling performance testing device | |
| CN202886159U (en) | Concrete sample pre-set template with cracks | |
| CN106442945B (en) | The test method that a kind of evaluable live fresh concrete layering situation and layering influence maturing | |
| CN105973662A (en) | Beam type test piece pouring mold and mechanical property testing method of beam type test piece | |
| CN106556541A (en) | A kind of test method for studying shearing overall process Rock Joint Plane Morphology Evolution | |
| CN111239253B (en) | Detection method and application of aggregate elastic modulus | |
| CN107976366A (en) | A kind of experimental observation apparatus and method for simulating rock-like materials crack propagation | |
| Dong et al. | Non-tip failure of smooth fissure in 3D printed specimens | |
| CN204731074U (en) | The sampling die of rock mass of fracture network sample | |
| CN104777078A (en) | Stability testing device for self-compact concrete mixture of filling layer and testing method of stability testing device | |
| CN109580401A (en) | Test the test method of platy ballastless track structure cement-based material performance development | |
| JP6319896B2 (en) | Form for molding mortar panel and molding method of mortar panel using the same | |
| CN109085035A (en) | The production method of the test specimen of rocks containing prefabricated crack | |
| CN206002360U (en) | A kind of analog material rock mass sample Among Intermittent Joints are accurately positioned producing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191015 |
|
| RJ01 | Rejection of invention patent application after publication |