CN108051574A - Cement concrete slump full-automatic testing instrument - Google Patents
Cement concrete slump full-automatic testing instrument Download PDFInfo
- Publication number
- CN108051574A CN108051574A CN201810099003.3A CN201810099003A CN108051574A CN 108051574 A CN108051574 A CN 108051574A CN 201810099003 A CN201810099003 A CN 201810099003A CN 108051574 A CN108051574 A CN 108051574A
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- Prior art keywords
- slump
- slump cone
- cement concrete
- full
- automatic testing
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; ceramics; glass; bricks
- G01N33/383—Concrete, cement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
Abstract
The present invention relates to a kind of cement concrete slump full-automatic testing instrument, the slump cone set gradually from the bottom up including environmental cabinet and in environmental cabinet, scraping device and device is plugged and pounded, slump cone connects vertical draft gear；The through hole that can be connected with slump cone upper end, scraping device connection horizontally tracting device are offered on scraping device；The lower end for plugging and pounding device can extend into slump cone, plug and pound the upper end connection lifting gear of device；The feed device for feeding to slump cone is additionally provided with above slump cone；Vertical draft gear, horizontally tracting device and lifting gear difference connecting power device, power set are all connected with controller；It is also equipped with obtaining the measuring device of cement concrete slump in environmental cabinet.The present invention is capable of the accuracy of guarantee test result, realizes automation mechanized operation, experiment continuity is good, and the accuracy and authenticity of measurement result are good.
Description
Technical field
The present invention relates to concrete NDT apparatus field, more particularly to a kind of cement concrete slump full-automatic testing
Instrument.
Background technology
The slump is an important performance of cement concrete, directly influences the plasticizing capacity and pumpable of cement concrete
Performance.Existing slump measuring instrument is mainly slump measurement barrel, operation principle be by cement concrete mixing object by
Prescriptive procedure is packed into standard cones slump cone, is filled after striking off, is vertically upward lifted cylinder, is moved on on one side.Coagulating cement
Native mixture will generate slump phenomenon due to dead weight.Then the height to collapse downwards is measured, which is exactly the slump.
But such slump measurement barrel has the following problems：Bottom plate place plane requirement is horizontal plane, it is solid and
It does not absorb water, such bottom plate lacks identification or uniqueness, the particularly construction in a variety of construction environments under the conditions of
Scene, the plane that its bottom plate of place of in situ test selection is placed require having differences property, and arbitrariness is also big.Laboratory test and construction
Operating manpower spent by field test the two, time, test result etc. are compared, and otherness can bigger.
At present, the Chinese patent of Publication No. CN2515677 U discloses a kind of cement concrete measuring device, including cylinder
Body, bottom plate and measuring device.Test bodies are relatively fixed with measuring device holding in the device, and measurement accuracy is high.The device
In have the following disadvantages：Slump cylinder does not constrain when being lifted up, and easily rocks, and operation can occur to be withdrawn deposit partially as vertically
Degree can not ensure；Slump cone easily rocks during plugging and pounding, and influences the accuracy of measurement.
The Chinese patent of 2046027 U of Publication No. CN discloses a kind of slump cone cleaning device, solves and is detecting
After concrete slump, cement sand bed in slump cone surfaces externally and internally adherency concrete causes to mix using existing cleaning method
The problem of solidifying soil paste liquid crossing current, land clearing difficulty is big or is directly discharged to sewer, easily causes blocking.
Above-mentioned concrete measures the device of the slump used by preparing scene, there are still following shortcoming and defect：The
First, manually being fed, plug and pound operation and compare labor intensive and time, the mobility of fresh concrete has certain influence, and
The uniformity for plugging and pounding rear concrete is difficult to control；Secondth, after lifting slump cone, measured using meter ruler, estimated and read due to sight
Number, causes error larger；3rd, whole experiment process one man operation is difficult to complete, and tests poor continuity, and the time is difficult to control,
Influence the accuracy and authenticity of measurement result；4th, do not consider in measurement process the temperature of different construction sites, humidity and
Influence of the conditions such as wind speed to experimental result.
The content of the invention
It is an object of the invention to overcome problems of the prior art, a kind of cement concrete slump is provided entirely certainly
Dynamic tester can be automatically performed slump measure.
In order to achieve the above object, the present invention adopts the following technical scheme that：
The slump cone that is set gradually from the bottom up including environmental cabinet and in environmental cabinet, scraping device and plug and pound dress
It puts, slump cone connects vertical draft gear；The through hole that can be connected with slump cone upper end is offered on scraping device, is scraped
Leveling device connects horizontally tracting device；The lower end for plugging and pounding device can extend into slump cone, and the upper end connection for plugging and pounding device rises
Falling unit；The feed device for feeding to slump cone is additionally provided with above slump cone；Vertical draft gear, level are led
Leading-in device and lifting gear difference connecting power device, power set are all connected with controller；It is also equipped with obtaining in environmental cabinet
Take the measuring device of cement concrete slump.
Further, the outside of slump cone sets stent.
Further, stent includes two groups of vertical guides, and vertical draft gear includes one end with being connected on the outside of slump cone
Two horizontal H-type bars, the other end of H-type bar connects vertical guide by the first sliding block, and the first sliding block is passed by traction
Motivation structure connecting power device.
Further, stent includes two groups of horizontal guide rails；Scraping device is connected including rectangular slab with slump cone upper end
Through hole be opened in the center of rectangular slab；The both sides of rectangular slab connect one end of waling stripe, the other end of waling stripe respectively
Horizontal guide rail is connected by the second sliding block, the second sliding block passes through rack and pinion drive mechanism connecting power device；Rectangular slab can
It slides into and completely disengages slump cone.
Further, the charging hopper communicated with its through hole is connected on the upside of rectangular slab；Feed device connection is oblique to be led
Slot, the lower end of oblique guide groove are extended above charging hopper.
Further, stent includes top surface baffle；Lifting gear includes the vertical guide stem through top surface baffle, vertical guide stem
Lower end connection plugs and pounds device, and upper end passes through dragging and driving mechanism connecting power device.
Further, plugging and pounding device includes the circular slab for being connected to lifting gear lower end, and the bottom of circular slab is uniformly provided with
Several vibrating spears, vibrating spear connecting vibration motor, vibrating motor connection vibrating controller；The diameter of circular slab, which is less than, scrapes paperback
The through-hole diameter put.
Further, feed device includes being mounted on the storage bin at the top of environmental cabinet, and storage bin is divided into three units, each
Unit offers feeding mouth and discharge port, and each discharge outlet is respectively mounted charging baffle；The capacity of three units of storage bin point
Not Wei V1, V2 and V3, the bottom of wherein V1 and slump cone is equal to the volume between 1/3 height, the 1/3 of V2 and slump cone
Height is equal to the volume between 2/3 height, and V3 is 2/3 height of slump cone to 1.05~1.2 times of volume of cylinder top surface.
Further, measuring device includes being fixed on the vertical mark post of environmental cabinet bottom and be sleeved on vertical mark post
Horizontal mark post is equipped with ultrasonic probe on horizontal mark post.
Further, humiture and wind speed control system are set in environmental cabinet；Slump cone is placed on platform base, is put down
Platform pedestal is fixedly linked with environmental cabinet bottom.
Compared with prior art, the present invention has technique effect beneficial below：
The present invention carries out cement concrete slump test, experiment process letter using environmental cabinet construction simulation site environment
List is easy, measurement result is accurate；Test operation process is controlled using controller, feed and plug and pound operation respectively by feed device and
Device completion is plugged and pounded, plugs and pounds that rear concrete is uniform, and operation can be completed in one, can not only save manpower, can also effectively save
Test period is saved, and is capable of the accuracy of guarantee test result, realizes automation mechanized operation, experiment continuity is good, and the time is controllable,
The accuracy and authenticity of measurement result are good.
Further, the present invention can fix experimental rig by setting vertical guide, and in power set and control
The automatic lifting of slump cone can be achieved under the action of device.
Further, the present invention can realize the automation of scraper operation by setting horizontal guide rail；By setting rectangle
Plate, it can be ensured that the flatness of concrete surface after scraper reduces human error, and saves manpower.
Further, the present invention can preferably be fed by setting charging hopper.
Further, the present invention can improve vibration efficiency, it is ensured that after vibrating by setting vibrating controller and vibrating spear
The uniformity of concrete.
Further, the present invention, beneficial to sample is more uniformly made, is mixed by the way that storage bin is divided into three units after plugging and pounding
It is good to coagulate the uniformity of soil, beneficial to obtaining more accurately test result.
Further, the present invention reads the slump of cement concrete by ultrasonic probe, reduces measurement error.
Further, the present invention is by setting humiture and wind speed control system, the temperature at construction simulation scene, humidity and
Wind action carries out cement concrete slump test under THM coupling effect, and experiment process is simple and practicable, measurement result is accurate
Really, and test result is closer to engineering practice.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the partial enlarged view of the present invention.
Wherein：1 is environmental cabinet；2 be platform base；3 be slump cone；4 be vertical mark post；5 be H-type bar；6 be vertically to lead
Rail；7 be rectangular slab；8 be horizontal guide rail；9 be waling stripe；10 be charging hopper；11 be vertical guide stem；12 be bolt ring；13
For bolt fixed link；14 be top surface baffle；15 be power set；16 be circular slab；17 be vibrating controller；18 be vibrating spear；
19 be the first sliding block；20 be the second sliding block；21 be humiture and Wind-speed controller；22 panels in order to control；23 buttons in order to control；24
For horizontal mark post；25 be feeding mouth；26 be storage bin；27 be discharge port；28 be charging baffle；29 be storage bin；30 be oblique
Guide groove；31 be fixing bolt.
Specific embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
Referring to Fig. 1 and Fig. 2, the present invention includes environmental cabinet 1, experimental rig and control panel 22.Experimental rig includes platform
Pedestal 2, slump cone 3, plug and pound device, scraping device, measuring device and power set at storage device (feed device).Platform
Pedestal 2 is fixedly linked with 1 bottom of environmental cabinet.
Environmental cabinet 1 is temperature, humidity and wind speed curing box, can concurrently set temperature, humidity and wind speed, the environmental cabinet
Operation principle to be the temperature and humidity inside the epidemic disaster controller adjusting ambient case by installation existing to simulate different constructions
Temperature, humidity suffered by the concrete of field.Humiture and wind speed control system, humiture and wind are specifically set in environmental cabinet 1
Speed control system includes humiture and Wind-speed controller 21 and the air blower or small fan that are connected with Wind-speed controller, air blast
Machine or small fan are used for influence of the simulated atmosphere mobilization to concrete.Temperature controller and humid control in environmental cabinet 1
Device is installed at the outside of environmental cabinet 1, wherein each controller needs external power supply.
It sets gradually slump cone 3, scraping device from the bottom up in environmental cabinet 1 and plugs and pounds device；Slump cone 3 is placed
On platform base 2, slump cone 3 connects vertical draft gear；Being offered on scraping device can be with 3 upper end phase of slump cone
The through hole of connection, scraping device connection horizontally tracting device；The lower end for plugging and pounding device can extend into slump cone 3, plug and pound dress
The upper end connection lifting gear put；The top of slump cone 3 is additionally provided with the feed device for feeding to slump cone 3；It is perpendicular
Straight draft gear, horizontally tracting device and lifting gear are all connected with power set 15, and power set 15 are all connected with controller；Environment
It is also equipped with obtaining the measuring device of cement concrete slump in case 1.
The outside of slump cone 3 sets stent, and stent includes two groups of vertical guides 6, two groups of horizontal guide rails 8 and top surface gear
Plate 14.Vertical guide 6 is symmetricly set on 3 both sides of slump cone, and is fixed on by fixing bolt 31 on platform base 2；It is horizontal
Guide rail 8 is arranged on the middle part of vertical guide 6, and extends to 6 outside of vertical guide；Top surface baffle 14 is pushed up mounted on vertical guide 6
Portion.Top surface baffle 14 is provided with the rectangular slab of horizontal concrete chute, outer lateral extent between the length and width of the rectangular slab and each vertical guide for centre
It is equal.
Vertical draft gear includes two horizontal H-type bars that one end is connected with 1/2 position of 3 outside height of slump cone
5, the other end of H-type bar 5 connects vertical guide 6 by the first sliding block 19, and motor, the first sliding block are equipped in vertical guide 6
19 connect motor by dragging and driving mechanism, and the first sliding block 19 is driven along vertical guide 6 by motor and dragging and driving mechanism
It moves up and down, so as to which slump cone 3 be driven to move up and down.
Scraping device includes the through hole that rectangular slab 7 is connected with 3 upper end of slump cone and is circular hole and is opened in rectangular slab 7
Center；The both sides of rectangular slab 7 connect one end of waling stripe 9 respectively, and the other end of waling stripe 9 is connected by the second sliding block 20
Water receiving level gauge 8；8 one end of horizontal guide rail is equipped with motor, and the second sliding block 20 connects motor by rack and pinion drive mechanism, leads to
It crosses motor and rack and pinion drive mechanism drives the second sliding block 20 to be moved forward and backward along horizontal guide rail 8, before driving rectangular slab 7
After move；Horizontal guide rail 8 is vertical with the vertical guide 6 mutually to be passed through, and one end connects with vertical guide 6, the other end and vertical guide 6
Extend outwardly certain distance after intersecting so that rectangular slab 7, which can slide into, completely disengages slump cone 3.
Lifting gear includes the vertical guide stem 11 through top surface baffle 14, and the connection of 11 lower end of vertical guide stem plugs and pounds device, on
It holds the horizontal concrete chute through top surface baffle 14 and passes through dragging and driving mechanism connecting power device 15.11 top of vertical guide stem is fixed
In 15 inside of power set, can be moved up and down under the effect of power set 15.
Plugging and pounding device includes being connected to the circular slab 16 of 11 lower end of vertical guide stem, and the bottom of circular slab 16 is uniformly provided with several
Root vibrating spear 18, preferably nine, 18 connecting vibration motor of vibrating spear；The through hole that the diameter of circular slab 16 is less than on scraping device is straight
Footpath.Vibrating controller 17 is installed, vibrating motor connection vibrating controller 17 can set time of vibration on circular slab 16.
Feed device includes the storage bin 26 for being fixedly mounted on the top of environmental cabinet 1, and storage bin 26 divides for three units, each
Unit offers feeding mouth 25 and 27 discharge port of discharge port, 27 downside sets storage bin 29, is respectively mounted and adds at each discharge port 27
Expect baffle 28, filled it up in use, first passing through feeding mouth 25, open charging baffle 28 and material is allowed to enter storage bin 29 simultaneously through discharge port 27
Diagonally guide groove 30 flows out, and three storage bin cell capabilities are respectively V1, V2 and V3, wherein V1 and slump cone bottom to 1/3
Volume between height is equal, and the volume between V2 and slump cone 1/3-2/3 height is equal, and V3 is 2/3 height of slump cone
To 1.05~1.2 times of the volume of cylinder top surface, concrete can be fully filled with slump cone 3 after the completion of guarantee is vibrated.
The upside of rectangular slab 7 is connected with the charging hopper 10 communicated with its through hole, circular hole aperture and the dress at 7 center of rectangular slab
10 base diameter of funnel is identical, and rectangular slab 7 is welded as a whole with 10 bottom of funnel；Storage bin 29 connects oblique guide groove 30, tiltedly
The horizontal concrete chute of rectangular slab is passed through to the lower end guide groove mouth of guide groove 30, extends 10 top of charging hopper.The diameter of circular slab 16 omits
Less than the top surface diameter of charging hopper 10.
Measuring device includes the vertical mark post 4 being fixed on 1 bottom platform pedestal 2 of environmental cabinet and is sleeved on vertical mark post 4
On horizontal mark post 24, ultrasonic probe is installed on horizontal mark post 24, for reading the slump of cement concrete, measurement dress
It puts and is arranged on 3 front of slump cone.
Power set 15 include the motor on lifting gear, vertical guide 6 and horizontal guide rail 8, wherein horizontal motion
Using rack pinion, vertical direction is using tractive driving；Power set 15 are further included to be connected with vibrating spear 18
Vibrating motor, vibrating motor is for driving vibrating spear 18 to vibrate.
Connection control circuit in experimental rig, 1 one side of environmental cabinet are provided with control panel 22, and control panel is equipped with control
Switch 23, by control button can with the operation of maneuvering test device, including feeding, plug and pound, concrete surface strikes off, carry cylinder with
And measurement.
The present invention specific operation process be：
Fresh concrete is fitted into storage bin, the concrete first allowed in No. 1 storage bin enters storage bin through discharge port 27
29, it is then fitted into through oblique guide groove 30 in charging hopper 10, into slump cone 3, starts the lifting gear plugged and pounded in device, hang down
The circular slab 16 of straight 11 lower part of guide rod drops to be stopped when touching 3 surface of slump cone, and then Vibration on Start-up controller 17, shakes
Tamper 18 is inserted into concrete, and vibrate 30s under the drive of vibrating motor, and then starting lifting gear rises to vibrating spear 18 to collapse
Material in 2, No. 3 storage bins is fitted into slump cone 3 and vibrated successively according to the method described above by 3 surface of degree of falling cylinder；Charging is completed
Afterwards, start scraper, the sample of 3 excess surface of slump cone is struck off, specifically start the motor on horizontal guide rail 8, band
Dynamic charging hopper 10 and the connector of rectangular slab 7 are moved backward along horizontal guide rail 8, and 3 excess surface sample of slump cone is scraped
It puts down and departs from slump cone 3；Then start the motor in vertical guide 6, drive 3 upward sliding of slump cone, finally start and survey
Device is measured, the distance of concrete surface is measured through ultrasonic probe, passes through stored slump cone height and ultrasound
The difference of the numerical value of amount obtains slump numerical value.
The present invention has the following advantages：
The present invention uses temperature, humidity and the wind action at environmental cabinet construction simulation scene, and test result is closer to engineering
Actual conditions；Test operation process uses Programmed control, can not only save manpower, can also effectively save test period,
And it is capable of the accuracy of guarantee test result, realizes automation mechanized operation.
The present invention provides a kind of cement concrete slump full-automatic testing instrument under THM coupling effect, is supported using environment
Temperature, humidity and the wind speed environments at protecting box construction simulation scene, and pass through the operating process of controller Control experiment and data note
Record, experiment process is simple and practicable, measurement result is accurate, and closer engineering practice.
Claims (10)
1. cement concrete slump full-automatic testing instrument, it is characterised in that：Including environmental cabinet (1) and in environmental cabinet (1)
The slump cone (3) that sets gradually from the bottom up, scraping device and device is plugged and pounded, slump cone (3) connects vertical draft gear；
The through hole that can be connected with slump cone (3) upper end, scraping device connection horizontally tracting device are offered on scraping device；It inserts
The lower end for smashing device can extend into slump cone (3), plug and pound the upper end connection lifting gear of device；Slump cone (3) it is upper
Side is additionally provided with the feed device for feeding to slump cone (3)；Vertical draft gear, horizontally tracting device and lifting gear
Connecting power device, power set are all connected with controller respectively；It is also equipped in environmental cabinet (1) obtaining cement concrete and collapse
The measuring device for degree of falling.
2. cement concrete slump full-automatic testing instrument according to claim 1, it is characterised in that：Slump cone (3)
Outside set stent.
3. cement concrete slump full-automatic testing instrument according to claim 2, it is characterised in that：Stent includes two groups
Vertical guide (6), vertical draft gear include one end and two horizontal H-type bars (5) being connected on the outside of slump cone (3), H-type
The other end of bar (5) connects vertical guide (6) by the first sliding block (19), and the first sliding block (19) is connected by dragging and driving mechanism
Connect power set.
4. cement concrete slump full-automatic testing instrument according to claim 2, it is characterised in that：Stent includes two groups
Horizontal guide rail (8)；Scraping device is opened in rectangular slab including rectangular slab (7) with the through hole that slump cone (3) upper end is connected
(7) center；The both sides of rectangular slab (7) connect one end of waling stripe (9) respectively, and the other end of waling stripe (9) passes through
Two sliding blocks (20) connection horizontal guide rail (8), the second sliding block (20) pass through rack and pinion drive mechanism connecting power device；Rectangular slab
(7) it can slide into and completely disengage slump cone (3).
5. cement concrete slump full-automatic testing instrument according to claim 4, it is characterised in that：Rectangular slab (7)
Upside is connected with the charging hopper (10) communicated with its through hole；Feed device connects oblique guide groove (30), oblique guide groove (30)
Lower end is extended above charging hopper (10).
6. cement concrete slump full-automatic testing instrument according to claim 2, it is characterised in that：Stent includes top surface
Baffle (14)；Lifting gear includes the vertical guide stem (11) through top surface baffle (14), and the connection of vertical guide stem (11) lower end plugs and pounds
Device, upper end pass through dragging and driving mechanism connecting power device.
7. cement concrete slump full-automatic testing instrument according to claim 1, it is characterised in that：Plugging and pounding device includes
The circular slab (16) of lifting gear lower end is connected to, the bottom of circular slab (16) is uniformly provided with several vibrating spears (18), vibrates
Stick (18) connecting vibration motor, vibrating motor connection vibrating controller (17)；The diameter of circular slab (16) is less than on scraping device
Through-hole diameter.
8. cement concrete slump full-automatic testing instrument according to claim 1, it is characterised in that：Feed device includes
Storage bin (26) at the top of environmental cabinet (1), storage bin (26) are divided into three units, and each unit offers feeding mouth
(25) and discharge port (27), charging baffle (28) is respectively mounted at each discharge port (27)；The capacity of (26) three units of storage bin
The bottom of respectively V1, V2 and V3, wherein V1 and slump cone (3) are equal to the volume between 1/3 height, V2 and slump cone
(3) 1/3 height is equal to the volume between 2/3 height, and V3 is 2/3 height of slump cone (3) to the volume of cylinder top surface
1.05~1.2 times.
9. cement concrete slump full-automatic testing instrument according to claim 1, it is characterised in that：Measuring device includes
It is fixed on the vertical mark post (4) of environmental cabinet (1) bottom and the horizontal mark post (24) being sleeved on vertical mark post (4), horizontal mark post
(24) ultrasonic probe is installed on.
10. cement concrete slump full-automatic testing instrument according to claim 1, it is characterised in that：In environmental cabinet (1)
Humiture and wind speed control system are set；Slump cone (3) is placed on platform base (2), platform base (2) and environmental cabinet
(1) bottom is fixedly linked.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810099003.3A CN108051574A (en) | 2018-01-31 | 2018-01-31 | Cement concrete slump full-automatic testing instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810099003.3A CN108051574A (en) | 2018-01-31 | 2018-01-31 | Cement concrete slump full-automatic testing instrument |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108760459A (en) * | 2018-05-31 | 2018-11-06 | 温州奇思科技有限公司 | A kind of construction smashes even device and application method with slump bucket |
| CN108918836A (en) * | 2018-07-17 | 2018-11-30 | 高国杰 | Concrete test block Pressure-flow study test device |
| CN109633135A (en) * | 2019-01-02 | 2019-04-16 | 上海诚云建设工程质量检测有限公司 | A kind of concrete slump detection device and detection method |
| CN111060422A (en) * | 2019-12-31 | 2020-04-24 | 葛洲坝中固科技股份有限公司 | Sludge outward transport detection device and method |
| CN112540041A (en) * | 2020-12-04 | 2021-03-23 | 江苏五环建设有限公司 | Automatic concrete slump rapid detection device for building |
| CN113533698A (en) * | 2021-07-21 | 2021-10-22 | 广东富信建设管理有限公司 | Construction site engineering quality supervision auxiliary detection method |
| CN113777285A (en) * | 2021-10-19 | 2021-12-10 | 泰源工程集团股份有限公司 | Concrete slump detection device |
| CN114578031A (en) * | 2022-05-07 | 2022-06-03 | 南京庆瑞水泥有限公司 | A test check out test set for cement concrete slump detects |
| CN115214019A (en) * | 2022-07-31 | 2022-10-21 | 张菊红 | Building concrete mixer with automated inspection slump |
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