CN110308172A - A kind of aggregate analyzing detecting method - Google Patents
A kind of aggregate analyzing detecting method Download PDFInfo
- Publication number
- CN110308172A CN110308172A CN201910655862.0A CN201910655862A CN110308172A CN 110308172 A CN110308172 A CN 110308172A CN 201910655862 A CN201910655862 A CN 201910655862A CN 110308172 A CN110308172 A CN 110308172A
- Authority
- CN
- China
- Prior art keywords
- aggregate
- depth
- views
- size
- point
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
- G01N23/2251—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident electron beams, e.g. scanning electron microscopy [SEM]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/41—Imaging imaging specifically internal structure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/421—Imaging digitised image, analysed in real time (recognition algorithms)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/635—Specific applications or type of materials fluids, granulates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a kind of aggregate analyzing detecting methods, comprising the following steps: S1, the six views that aggregate is acquired under model S-4800 field emission scanning electron microscope；S2, the depth for analyzing to obtain the partial size of aggregate and the long crack of aggregate surface in each view according to six views, S3, the depth of the partial size for measuring aggregate and long crack is compared with corresponding threshold value, the partial size threshold value of aggregate is 0.16~25mm, and the depth threshold of long crack is no more than 1% of aggregate size in respective view；Aggregate size maximum value in S4, six views is 10~25mm, and the depth of the long crack of six views is below 1% of the aggregate size in respective view.Aggregate determination method of the present invention passes through S-4800 field emission scanning electron microscope, in low accelerating field imaging analysis can be carried out to nonconducting aggregate surface, aggregate will not directly be contacted, keep aggregate surface completely as before, detection and analysis one by one as long as in addition multiple aggregates will not be blocked mutually, while can be used for batch processing to each aggregate.
Description
Technical field
The invention belongs to aggregate detection fields, and in particular to aggregate analyzing detecting method.
Background technique
Aggregate also known as " gathers materials ".The bulk material of skeleton and filling effect is played in concrete and mortar.There is fine aggregate and thick
Two kinds of aggregate.Fine aggregate particle diameter between 0.16~5mm generally uses natural sand, such as river sand, sea sand and mountain valley sand,
When lacking natural sand, it is also possible to the artificial sand that solid rock is ground；Coarse aggregate particle diameter is greater than 5mm, and there are commonly rubbles
And cobble, under similarity condition, the intensity of crushed stone concrete is higher than boulder concrete, but rubble is formed by rock grating,
Cost is height compared with cobble.Common coarse aggregate has the natural porous rock such as float stone, haydite, expanded slag etc. in lightweight aggregate concrete
Artificial porous aggregate.Cobble for building, rubble should meet standard GB/T/T 14685-2001's " for building cobble, rubble "
Technical requirements.Characterized in the standard with thickness of the fineness modulus for sandstone, by sand and stone sample after screening, meter
Calculate on each standard screen and all to add up the sum of screen over-size and obtain the value divided by 100, due to using by the way of standard screen, sandstone is logical
The angle for crossing sieve pore is different, it is also possible to cause the sandstone of some long sheets to pass through, therefore fineness modulus is only capable of to batch aggregate
Thickness carries out general token, can not precisely determine the partial size of every sandstone.Existing aggregate size analysis method is not to aggregate
Surface is analyzed, if aggregate surface is easy to cause aggregate to occur to break in use from slight crack in the presence of deeper crackle
It splits, influences the partial size and intensity of aggregate, the aggregate especially after over mechanical processing, and due to vibration in partial size test process
The influence collision that dynamic sieving generates may also lead to aggregate and slight crack occurs.Therefore, need it is a kind of it is contactless, can be to carrying out one by one
The aggregate analyzing detecting method of detection.
Summary of the invention
It is an object of the invention to: in view of the deficiencies of the prior art, provide it is a kind of it is contactless, can be to being detected one by one
Aggregate analyzing detecting method.
A kind of aggregate analyzing detecting method, comprising the following steps:
S1, the six views that aggregate is acquired under model S-4800 field emission scanning electron microscope；
S2, the depth for analyzing to obtain the partial size of aggregate and the long crack of aggregate surface in each view according to six views,
S3, the depth of the partial size for measuring aggregate and long crack is compared with corresponding threshold value, the partial size threshold of aggregate
Value is 0.16~25mm, and the depth threshold of long crack is no more than 1% of aggregate size in respective view；
Aggregate size maximum value in S4, six views is 10~25mm, and the depth of the long crack of six views is below
1% of aggregate size in respective view.
The depth of long crack is measured using depth of field method in one of specific embodiment of the invention, step S2.
Long crack is measured using depth of field method, using the depth information for defocusing acquirement target of the limited area image of the depth of field, due to dissipating
Burnt degree is the setting parameter inside S-4800 field emission scanning electron microscope it is known that having obtained the defocus amount of long crack to get arriving
The depth of field, therefore the inside and outside parameter by changing S-4800 field emission scanning electron microscope obtains the strip crack image under Same Scene
The absolute depth of long crack can be calculated.Using the depth of the long crack of non-contact testing, relative to ultrasonic test depth
Degree and the measurement of focused ion beam Electronic Speculum, will not destroy aggregate surface.
In one of specific embodiment of the invention, the Particle size analysis methods of aggregate in step S2 are as follows: extraction pair
The first edge profile point for answering aggregate in view is separately connected using one of first edge profile point as the first basic point
One basic point and with the non-conterminous first edge profile point of the first basic point, the first basic point and adjacent other of any two first
Edge contour point forms triangle, each barycenter oftriangle is determined, using each barycenter oftriangle as second edge profile point；
And so on, until finding the midpoint of aggregate in each view；Each midpoint of the first edge profile point through aggregate to another first side
The linear distance of edge profile point is the partial size of aggregate in respective view, takes the maximum particle diameter of aggregate in each view.
With the development of computer language, processing analysis is carried out by picture of the program language to aggregate, obtains aggregate
Partial size in the prior art generally uses object of different shapes the side of form fit since the shape of every aggregate is different
Formula is handled, such as ellipse fitting method, circular fit method, subsphaeroidal aggregate, extracts profile by picture, extraction is obtained
Profile carry out round or ellipse fitting, obtain the parametric equation of rule of correspondence figure, such test mode is by aggregate
Profile planning, the high fitting parameter equation of the degree of correlation can only explain most of edge contour point and meets corresponding fitting parameter side
Method, partial size test result accuracy are lower.The present invention is led to by extracting aggregate edge contour, the method for not using mathematical statistics
It crosses and constantly chooses triangle core as edge contour, gradually reduce the distribution of aggregate plane center of gravity in view, until contracting
An as low as point, as the plane midpoint of aggregate, when granularmetric analysis, every straight line is both needed to the plane midpoint by aggregate, to survey
The maximum value obtained indicates the particle size of the view aggregate, is applicable to aggregate of different shapes, same sequencing, relative to number
The mode of statistics is learned, partial size test is more accurate.
To avoid aggregate surface from influencing to test there are thin mud, block long crack, in step S1 acquisition aggregate six views it
Before, aggregate is placed in water supersound washing and is completely dried afterwards, the ultrasonic wave of supersound washing is 25000~30000Hz.Under the frequency
Ultrasonic energy efficiently remove thin mud, while can avoid long crack further expansion.
In terms of existing technologies, the invention has the following advantages:
Aggregate determination method of the present invention, can be to not in low accelerating field by S-4800 field emission scanning electron microscope
Conductive aggregate surface carries out imaging analysis, will not directly contact aggregate, keeps aggregate surface completely as before, as long as in addition multiple
Aggregate will not be blocked mutually, and analysis method of the present invention can carry out the measurement of multiple aggregates simultaneously, and test data only characterizes
Single aggregate, the detection and analysis one by one while can be used for batch processing to each aggregate.
Detailed description of the invention
Fig. 1 is the aggregate size analysis method schematic diagram of embodiment 1.
Fig. 2 is the aggregate size analysis method schematic diagram of embodiment 2.
Specific embodiment
In order to be more clear the purpose of the present invention, technical solution and technical effect, with reference to embodiments, to the present invention
It is described in detail.It should be understood that embodiment described in this specification is not intended to just for the sake of explaining the present invention
Limit the present invention, parameter, ratio of embodiment etc. can adaptation to local conditions make a choice and substantial effect had no to result.
A kind of aggregate analyzing detecting method, comprising the following steps:
S1, the six views that aggregate is acquired under model S-4800 field emission scanning electron microscope；
S2, the depth for analyzing to obtain the partial size of aggregate and the long crack of aggregate surface in each view according to six views,
S3, the depth of the partial size for measuring aggregate and long crack is compared with corresponding threshold value, the partial size threshold of aggregate
Value is 0.16~25mm, and the depth threshold of long crack is no more than 1% of aggregate size in respective view；
Aggregate size maximum value in S4, six views is 10~25mm, and the depth of the long crack of six views is below
1% of aggregate size in respective view.
The depth of long crack is measured using depth of field method in one of specific embodiment of the invention, step S2.
In one of specific embodiment of the invention, the Particle size analysis methods of aggregate in step S2 are as follows: extraction pair
The first edge profile point for answering aggregate in view is separately connected using one of first edge profile point as the first basic point
One basic point and with the non-conterminous first edge profile point of the first basic point, the first basic point and adjacent other of any two first
Edge contour point forms triangle, each barycenter oftriangle is determined, using each barycenter oftriangle as second edge profile point；
And so on, until finding the midpoint of aggregate in each view；Each midpoint of the first edge profile point through aggregate to another first side
The linear distance of edge profile point is the partial size of aggregate in respective view, takes the maximum particle diameter of aggregate in each view.
In one of specific embodiment of the invention, before acquiring aggregate six views in step S1, aggregate is set
Yu Shuizhong supersound washing is completely dried afterwards, and the ultrasonic wave of supersound washing is 25000~30000Hz.
Embodiment 1
A kind of aggregate analyzing detecting method, comprising the following steps:
S1, the six views that aggregate is acquired under model S-4800 field emission scanning electron microscope；
S2, the depth for analyzing to obtain the partial size of aggregate and the long crack of aggregate surface in each view according to six views,
S3, the depth of the partial size for measuring aggregate and long crack is compared with corresponding threshold value, the partial size threshold of aggregate
Value is 0.16~25mm, and the depth threshold of long crack is no more than 1% of aggregate size in respective view；
Aggregate size maximum value in S4, six views is 10~25mm, and the depth of the long crack of six views is below
Aggregate size in respective view 1% when for qualified aggregate.
The depth of long crack is measured in step S2 using depth of field method.
As shown in Figure 1, in step S2 aggregate Particle size analysis methods are as follows: extract respective view in aggregate first edge wheel
Exterior feature point totally five, using one of first edge profile point as the first basic point, be separately connected the first basic point and with the first base
The non-conterminous first edge profile point of point, the first basic point and adjacent other first edge profile points of any two form three
Triangle determines each barycenter oftriangle A, using three barycenter oftriangle A as second edge profile point；With one of them
Second edge profile point as the second basic point, be separately connected the second basic point and with the non-conterminous second edge profile of the second basic point
Point, the second basic point and any two are separated by other adjacent second edge profile points and form new triangle, determine new three
Angular center of gravity B is the center of gravity of the view aggregate；Each midpoint of the first edge profile point through aggregate is to another first edge wheel
The linear distance of exterior feature point is the partial size of aggregate in respective view, takes the maximum particle diameter of aggregate in each view.
Before acquiring aggregate six views in step S1, aggregate is placed in water supersound washing and is completely dried afterwards, supersound washing
Ultrasonic wave be 25000Hz.
Embodiment 2
A kind of aggregate analyzing detecting method, comprising the following steps:
S1, the six views that aggregate is acquired under model S-4800 field emission scanning electron microscope；
S2, the depth for analyzing to obtain the partial size of aggregate and the long crack of aggregate surface in each view according to six views,
S3, the depth of the partial size for measuring aggregate and long crack is compared with corresponding threshold value, the partial size threshold of aggregate
Value is 0.16~25mm, and the depth threshold of long crack is no more than 1% of aggregate size in respective view；
Aggregate size maximum value in S4, six views is 10~25mm, and the depth of the long crack of six views is below
Aggregate size in respective view 1% when for qualified aggregate.
The depth of long crack is measured in step S2 using depth of field method.
As shown in Fig. 2, in step S2 aggregate Particle size analysis methods are as follows: extract respective view in aggregate first edge wheel
Exterior feature point totally four, using one of first edge profile point as the first basic point, be separately connected the first basic point and with the first base
The non-conterminous first edge profile point of point, the first basic point and adjacent other first edge profile points of any two form two
Triangle determines each barycenter oftriangle A, connects two barycenter oftriangle A, and the center of gravity B for obtaining line segment AA is the view
The center of gravity of figure aggregate；The linear distance of each midpoint of the first edge profile point through aggregate to another first edge profile point is to correspond to
The partial size of aggregate in view, takes the maximum particle diameter of aggregate in each view.
Before acquiring aggregate six views in step S1, aggregate is placed in water supersound washing and is completely dried afterwards, supersound washing
Ultrasonic wave be 30000Hz.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (4)
1. a kind of aggregate analyzing detecting method, which comprises the following steps:
S1, the six views that aggregate is acquired under model S-4800 field emission scanning electron microscope；
S2, the depth for analyzing to obtain the partial size of aggregate and the long crack of aggregate surface in each view according to six views,
S3, the depth of the partial size for measuring aggregate and long crack is compared with corresponding threshold value, the partial size threshold value of aggregate is
0.16~25mm, the depth threshold of long crack are no more than 1% of aggregate size in respective view；
Aggregate size maximum value in S4, six views is 10~25mm, and the depth of the long crack of six views is below correspondence
1% of aggregate size in view.
2. aggregate analyzing detecting method according to claim 1, which is characterized in that measure strip using depth of field method in step S2
The depth in crack.
3. aggregate analyzing detecting method according to claim 1, which is characterized in that the Particle size analysis methods of aggregate in step S2
Are as follows: the first edge profile point for extracting aggregate in respective view, using one of first edge profile point as the first basic point, point
Do not connect the first basic point and with the non-conterminous first edge profile point of the first basic point, the first basic point and any two are adjacent
Other first edge profile points form triangle, each barycenter oftriangle are determined, using each barycenter oftriangle as the second side
Edge profile point；And so on, until finding the midpoint of aggregate in each view；Each midpoint of the first edge profile point through aggregate is to separately
The linear distance of one first edge profile point is the partial size of aggregate in respective view, takes the maximum particle diameter of aggregate in each view.
4. aggregate analyzing detecting method according to claim 1, which is characterized in that in step S1 acquire aggregate six views it
Before, aggregate is placed in water supersound washing and is completely dried afterwards, the ultrasonic wave of supersound washing is 25000~30000Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910655862.0A CN110308172B (en) | 2019-07-19 | 2019-07-19 | Aggregate analysis and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910655862.0A CN110308172B (en) | 2019-07-19 | 2019-07-19 | Aggregate analysis and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110308172A true CN110308172A (en) | 2019-10-08 |
| CN110308172B CN110308172B (en) | 2022-07-12 |
Family
ID=68081504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910655862.0A Active CN110308172B (en) | 2019-07-19 | 2019-07-19 | Aggregate analysis and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110308172B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5103484A (en) * | 1989-03-15 | 1992-04-07 | British Aerospace Public Limited Company | Target aimpoint location |
| JP2014095644A (en) * | 2012-11-11 | 2014-05-22 | Kajima Corp | Method, system, and program for measuring grain size of deposited granular material |
| EP3113078A1 (en) * | 2015-07-03 | 2017-01-04 | Ricoh Company, Ltd. | Method and system for detecting regular shape |
| US20170260093A1 (en) * | 2014-11-24 | 2017-09-14 | Mnz Holdings Limited | Extruded plastic aggregate for concrete |
| JP2018077112A (en) * | 2016-11-09 | 2018-05-17 | 学校法人同志社 | Particle diameter analysis method and particle diameter analysis program |
-
2019
- 2019-07-19 CN CN201910655862.0A patent/CN110308172B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5103484A (en) * | 1989-03-15 | 1992-04-07 | British Aerospace Public Limited Company | Target aimpoint location |
| JP2014095644A (en) * | 2012-11-11 | 2014-05-22 | Kajima Corp | Method, system, and program for measuring grain size of deposited granular material |
| US20170260093A1 (en) * | 2014-11-24 | 2017-09-14 | Mnz Holdings Limited | Extruded plastic aggregate for concrete |
| EP3113078A1 (en) * | 2015-07-03 | 2017-01-04 | Ricoh Company, Ltd. | Method and system for detecting regular shape |
| JP2018077112A (en) * | 2016-11-09 | 2018-05-17 | 学校法人同志社 | Particle diameter analysis method and particle diameter analysis program |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110308172B (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101957178B (en) | Method and device for measuring tunnel lining cracks | |
| CN101354241B (en) | Method for evaluating aggregate digital image | |
| CN102032875B (en) | Image-processing-based cable sheath thickness measuring method | |
| CN104776977A (en) | Coastal engineering silt physical model test bottom bed dynamic and comprehensive observation method | |
| CN110376584B (en) | Water supply pipeline leakage detection method based on ground penetrating radar image characteristic signal identification | |
| CN108007355A (en) | Distress in concrete detection method based on Image distance transform | |
| WO2021082904A1 (en) | Ground penetrating radar map adaptive selection method for detecting water damage | |
| CN104807883A (en) | Detection method of grouting compactness entity of wall | |
| CN106225702A (en) | Fracture width detection apparatus and method | |
| Gu et al. | Quantification of coarse aggregate shape in concrete | |
| CN103400139A (en) | Method for identifying concrete crack characteristic information | |
| CN108335310B (en) | Portable grain shape and granularity detection method and system | |
| CN112666554A (en) | Method for identifying radar amplitude characteristic crack width of asphalt pavement | |
| Gui et al. | Object-based crack detection and attribute extraction from laser-scanning 3D profile data | |
| CN110363855B (en) | Rock-fill dam transparentization modeling method | |
| CN110306414A (en) | A kind of pavement structural depth detection method | |
| Wang | Rock particle image segmentation and systems | |
| CN110308172A (en) | A kind of aggregate analyzing detecting method | |
| Yan et al. | Quality analysis on ransac-based roof facets extraction from airborne lidar data | |
| Tang et al. | Characterization of three algorithms for detecting surface flatness defects from dense point clouds | |
| Huang et al. | Research on void signal recognition algorithm of 3D ground-penetrating radar based on the digital image | |
| CN115876661A (en) | Asphalt pavement void ratio evaluation method based on three-dimensional ground penetrating radar image | |
| CN115578343A (en) | Crack size measuring method based on image communication and skeleton analysis | |
| CN112284287B (en) | Stereoscopic vision three-dimensional displacement measurement method based on structural surface gray scale characteristics | |
| CN114236538A (en) | Method for evaluating internal condition of asphalt pavement structure by using three-dimensional ground penetrating radar |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |