CN207440100U - A kind of device for being used to test slump - Google Patents
A kind of device for being used to test slump Download PDFInfo
- Publication number
- CN207440100U CN207440100U CN201721442141.4U CN201721442141U CN207440100U CN 207440100 U CN207440100 U CN 207440100U CN 201721442141 U CN201721442141 U CN 201721442141U CN 207440100 U CN207440100 U CN 207440100U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- slump
- concrete
- transverse slat
- slump cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model is related to a kind of for testing the device of slump, the slump cylinder being flexibly connected including bottom plate, with bottom plate, the slump cylinder is taper, jacking component is additionally provided on bottom plate, jacking component includes cylinder and cylinder block, cylinder is telescopic cylinder, and cylinder block is installed on bottom plate, and cylinder is fixed on cylinder block；Stripe board is installed on the outer wall of slump cylinder, the piston rod connection of the stripe board and cylinder so that piston rod promotes slump cylinder to move up and down, so as to fulfill the separation of slump cylinder and concrete；The outer wall of slump cylinder is equipped with a pair of of handle member, which horizontally slips slump cylinder or move up and down for tester.The utility model has the advantages that simple in structure, easy to operate, error is small.
Description
Technical field
The utility model belongs to building detection field, and in particular to a kind of device for being used to test slump.
Background technology
Slump is the key property of concrete, to work such as the aid pumpability of concrete, plasticization, paving property
Performance tool has a significant impact.Slump Site Detection is a kind of examination means of the construction party to mixing plant concrete quality.
Measuring the common methods of slump is：Slump cylinder is placed on the rigidity level bottom plate not absorbed water；Again
Concrete is poured into slump cylinder and consolidated；Slump cylinder is pulled up afterwards, concrete generates slump because of dead weight.At this moment, borrow
The ruler of vertical display and the auxiliary tools such as the horizontal ruler put or horizontal rod is helped to take to the apex of concrete, measure coagulation
The height of soil, the height of concrete peak can obtain the slump of the concrete after subtracting slump with the height of slump cylinder
Degree.However, the slump of concrete need to rationally be put by horizonal base plate, ruler and auxiliary tool etc. in above-mentioned this measuring method
It can be measured after putting, there are a variety of issuable measurements such as test surfaces, placement angle, ruler reading in measurement process to miss
The error source of difference, causes measurement error.
Such as：At the construction field (site), usually with a 100mm suitable for reading, lower mouth 200mm, high 300mm horn-like slump
Bucket first soaks bucket wall and bottom plate, is consolidated after penetration concrete, then pull up bucket straight up, must not encounter during pulling up mixed
For solidifying soil in order to avoid influencing measurement data, concrete generates slump phenomenon, concrete peak after subtracting slump with bucket height because of dead weight
Highly, it is known as slump.If difference is 150mm, slump 150.
After slump bucket is pulled up, slump bucket is placed on beside concrete, utilizes the reinforcing bar waste material at scene or flitch one
Hand is placed it in above slump bucket, and carry out reading is vertically set with steel scrap ledges by tape measure on the other hand.Therefore, existing slump is surveyed
Amount method needs to place ruler on bucket and carries out reading perpendicular to the tape measure of the ruler in external erection, and operation is more complicated.
Utility model content
Error is big during in order to overcome the problems, such as conventional slump measurement, and the utility model provides one kind for testing coagulation
The device of native slump.
The technical problems to be solved in the utility model is achieved through the following technical solutions：
A kind of device for being used to test slump, the slump cylinder being flexibly connected including bottom plate, with bottom plate, the slump
Cylinder is taper, and jacking component is additionally provided on the bottom plate, and the jacking component includes cylinder and cylinder block, and the cylinder is to stretch
The cylinder of contracting formula, the cylinder block are installed on bottom plate, and the cylinder is fixed on cylinder block；
Stripe board is installed on the outer wall of the slump cylinder, the piston rod connection of the stripe board and cylinder so that piston rod
Slump cylinder is promoted to move up and down, so as to fulfill the separation of slump cylinder and concrete；
The outer wall of the slump cylinder is equipped with a pair of of handle, the handle for tester by slump cylinder horizontally slip or on move down
It is dynamic.
Above-mentioned is a kind of for testing the device of slump, further includes to scrape and smears the extra coagulation in slump cylinder top
The transverse slat of soil and the riser for being used to support transverse slat, the transverse slat and riser are articulated as one, and transverse slat can turn around articulation piece
It is dynamic；
The lower face of the transverse slat is concordant with the upper surface of slump cylinder so that scrapes the concrete after smearing and slump cylinder upper surface
Concordantly.
It is above-mentioned a kind of for testing the device of slump, further include the scale of slip, the scale it is upper
End is equipped with the sliding block with slide cooperation, and the lower face of the transverse slat is equipped with the cavity for fixed rack, and the scale is in sliding block
Drive under moved along the direction of slide to slump cylinder, the scale is used to measure the slump of concrete.
Above-mentioned is a kind of for testing the device of slump, and the jacking component includes two gas being oppositely arranged
Cylinder seat, two cylinders being arranged on cylinder block；
The stripe board is two, is fixedly connected respectively positioned at the surface of cylinder and with the outer wall of slump cylinder；
The piston rod of two stripe boards and cylinder removably connects, and two cylinders collapse for balancing
The active force of doffing vertical direction in lifting.
Above-mentioned is a kind of for testing the device of slump, further includes the funnel being placed on above slump cylinder, is somebody's turn to do
Funnel includes the first noumenon of back taper and columnar second body, the first noumenon are fixedly connected with the second body；
The funnel is quickly to pour into concrete to be tested in slump cylinder, and second body is from the small of slump cylinder
End insertion, the outer wall of the first noumenon contact with the inner wall of slump cylinder, funnel and slump cylinder are relatively fixed.
Above-mentioned is a kind of for testing the device of slump, further includes the control system that cylinder is controlled to lift
System, the control system include ensureing the first synchronous valve that cylinder piston steadily moves and the second synchronous valve, for switching gas
The rodless cavity air inlet of cylinder or the first solenoid directional control valve of outlet and the second solenoid directional control valve and the source of the gas for cylinders providing power；
Source of the gas, the first solenoid directional control valve, the second solenoid directional control valve form the first pneumatic circuit, source of the gas, the second electromagnetic switch
Valve, the first synchronous valve, the second synchronous valve form the second pneumatic circuit；
First synchronous valve is connected with the rodless cavity of cylinder, and the second synchronous valve is connected with the rod chamber of cylinder.
Above-mentioned is a kind of for testing the device of slump, and the lower surface of the stripe board is equipped with the first magnet,
The end of the piston rod is equipped with the second magnet with the cooperation of the first magnet, and the first magnet and the second magnet are attracting, so as to fulfill
Piston rod is fixedly connected with stripe board；
After slump cylinder is given rise to certain altitude by cylinder, tester holds handle, uses the external force more than magnet adsorption power
Lift slump cylinder, slump cylinder is made to be kept completely separate with cylinder.
It is above-mentioned a kind of for testing the device of slump, further include be arranged on transverse slat lower face and with slump cylinder
The concordant infrared range-measurement system in upper surface, for detecting slump, the infrared range-measurement system includes the infrared range-measurement system：
Infra-red ray transmitting unit, the infra-red ray transmitting unit are used to emit vertically infrared to concrete sample top surface
Line；
The infrared receiver unit being used cooperatively with infra-red ray transmitting unit, the infrared receiver unit are red for receiving
The infrared ray that outside line transmitter unit sends and reflected by concrete sample top surface；
Timer, the timer is used to collecting infrared ray from being issued to time for being received, and the time is sent
To microcontroller；
Microcontroller, the microcontroller receive and process time signal, are tried according to the spread speed of light so as to obtain concrete
The slump of part.
The beneficial effects of the utility model：
Funnel is placed on the top of slump cylinder by the utility model, by funnel into slump cylinder penetration concrete and with smashing
It after stick tamping, is scraped using transverse slat and smears slump cylinder top any excess concrete, connected solenoid directional control valve, make jacking components drive slump cylinder
It moves up, completes being kept completely separate for slump cylinder and concrete sample, then surveyed using the scale or infrared range-measurement system of slip
It measures and records the slump angle value of concrete.Therefore, the utility model has the advantages that simple in structure, easy to operate, error is small.
The utility model is described in further details below with reference to accompanying drawings and embodiments.
Description of the drawings
Fig. 1 is the structure diagram one of the present apparatus.
Fig. 2 is the structure diagram two of the present apparatus.
Fig. 3 is the structure diagram three of the present apparatus.
Fig. 4 is the structure diagram of funnel.
Control system figure when Fig. 5 is the piston rod return-air of cylinder.
Control system figure when Fig. 6 is the piston rod air inlet of cylinder.
In figure：10. bottom plate；110. slump cylinder；120. handle；130. stripe board；210. cylinder block；220. cylinder；230.
Piston rod；310. riser；330. transverse slat；400. tamper cylinders；20-1. the first noumenons；20-2. the second body；221. source of the gas；222.
First solenoid directional control valve；223. second solenoid directional control valves；224. first synchronous valves；225. second synchronous valves.
Specific embodiment
For the technological means and effect that the utility model is reached predetermined purpose and taken is expanded on further, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
It is big using conventional slump measurement assembly and method error on building site in order to overcome the problems, such as, it present embodiments provides
A kind of device for being used to test slump as Figure 1-Figure 4 collapses including bottom plate 10, with what bottom plate 10 was flexibly connected
Doffing 110, the slump cylinder 110 are taper, and jacking component is additionally provided on bottom plate 10, and jacking component includes cylinder 220 and cylinder
Seat 210, cylinder 220 are telescopic cylinder 220, and cylinder block is installed on bottom plate 10, and cylinder 220 is fixed on cylinder block 210；
Stripe board 130 is installed on the outer wall of slump cylinder 110, which is connected with the piston rod 230 of cylinder 220,
So that piston rod 230 promotes slump cylinder 110 to move up and down, so as to fulfill the separation of slump cylinder 110 and concrete；
The outer wall of slump cylinder 110 is equipped with a pair of of handle 120, which horizontally slips slump cylinder 110 for tester
Or it moves up and down.
Smooth in order to make to pour into the concrete upper surface in slump cylinder 110, the device of the present embodiment further includes to be smeared for scraping
The transverse slat 330 of 110 top any excess concrete of slump cylinder and the riser 310 for being used to support transverse slat 330, transverse slat 330 and riser 310 are cut with scissors
One is connected in, and transverse slat 330 can be rotated around articulation piece；
The lower face of transverse slat 330 is concordant with the upper surface of slump cylinder 110 so that scrapes the concrete after smearing and slump cylinder 110
Upper surface is concordant.
For the ease of measuring the slump of concrete sample, the present embodiment further includes the scale of slip, the upper end of scale
Equipped with the sliding block coordinated with slide, the lower face of transverse slat 330 is equipped with the cavity for fixed rack, and scale is under the drive of sliding block
It is moved along the direction of slide to slump cylinder 110, scale is used to measure the slump of concrete.
It may be noted that since the slump angle value of each concrete sample is different, in order to not damage concrete sample in measurement,
The scale of the present embodiment can be the scale that can be stretched or the flexible scale that can be crimped.
The jacking component of the present embodiment can be the top tool of any form or structure, as long as slump cylinder 110 can be realized
Slowly lifting, in actually detected, the jacking component of the present embodiment preferably includes be oppositely arranged two cylinder blocks 210,
Two cylinders 220 being arranged on cylinder block 210；
Stripe board 130 is two, is fixedly connected respectively positioned at the surface of cylinder 220 and with the outer wall of slump cylinder 110；
Two stripe boards 130 are removably connected with the piston rod 230 of cylinder 220, and two cylinders 220 are used to put down
The active force of the vertical direction in lifting of weighing apparatus slump cylinder 110.
For the ease of rapidly by concrete injection slump cylinder 110, the device of the present embodiment, which further includes, is placed on slump
The funnel of 110 top of cylinder, the funnel include the first noumenon 20-1 and columnar second body 20-2 of back taper, the first noumenon
20-1 is fixedly connected with the second body 20-2；
Funnel is quickly to pour into concrete to be tested in slump cylinder 110, and the second body 20-2 is from slump cylinder 110
Small end is inserted into, and the outer wall of the first noumenon 20-1 contacts with the inner wall of slump cylinder 110, funnel and slump cylinder 110 are relatively fixed.
The cylinder 220 of the present embodiment is by control system piston rod 230 to be controlled to move, specifically, the control system
As shown in Figure 5, Figure 6, including being used to ensureing the first synchronous valve that 220 piston of cylinder steadily moves and the second synchronous valve, for cutting
It takes a breath and the rodless cavity air inlet of cylinder 220 or the first solenoid directional control valve of outlet and the second solenoid directional control valve and provides for cylinder 220
The source of the gas of power；
Source of the gas, the first solenoid directional control valve, the second solenoid directional control valve form the first pneumatic circuit, source of the gas, the second electromagnetic switch
Valve, the first synchronous valve, the second synchronous valve form the second pneumatic circuit；
First synchronous valve is connected with the rodless cavity of cylinder 220, and the second synchronous valve is connected with the rod chamber of cylinder 220.
It finds in actual use, the cylinder 220 of the present embodiment could more accurately measure mixed after being separated with slump cylinder 110
The slump of soil is coagulated, therefore, the present embodiment is equipped with the first magnet in the lower surface of stripe board 130, and the end of piston rod 230 is equipped with
With the second magnet of the first magnet cooperation, the first magnet and the second magnet are attracting, so as to fulfill piston rod 230 and stripe board 130
Be fixedly connected；
After slump cylinder 110 is given rise to certain altitude by cylinder 220, tester holds handle 120, using more than magnet adsorption
The external force of power lifts slump cylinder 110, and slump cylinder 110 is made to be kept completely separate with cylinder 220.The model of cylinder 220 is excellent in the present embodiment
Select ACKL40-90.
It may be noted that tape measure may be employed in the concrete sample of the present embodiment, infrared range-measurement system can also be used to measure,
Specifically, the present embodiment, which further includes, is arranged on 330 lower face of transverse slat and the infrared range-measurement system concordant with 110 upper surface of slump cylinder,
For detecting slump, infrared range-measurement system includes the infrared range-measurement system：
Infra-red ray transmitting unit, infra-red ray transmitting unit are used to emit vertical infrared ray to concrete sample top surface；
The infrared receiver unit being used cooperatively with infra-red ray transmitting unit, infrared receiver unit are used for receiving infrared-ray
The infrared ray that transmitter unit sends and reflected by concrete sample top surface；
Timer, timer is used to collecting infrared ray from being issued to time for being received, and the time is sent to list
Piece machine；
Microcontroller, microcontroller receive and process time signal, and the spread speed according to light is so as to obtaining concrete sample
Slump.
When in use, first, by 110 inner wall of code requirement wetting slump cylinder, funnel is passed through the second body 20- by tester
2 are placed on the top of slump cylinder 110, inject concrete in three times into slump cylinder 110 through funnel, often inject once, from bottom plate
Extraction tamper consolidates the concrete of injection in the tamper cylinder on 10 sides；Secondly, rotation transverse slat 330, which is scraped, smears 110 top of slump cylinder
Any excess concrete, pneumatic hydraulic cylinder simultaneously connect solenoid directional control valve, make jacking components drive slump cylinder 110 slow, smoothly upward
Mobile, completion slump cylinder 110 is kept completely separate with concrete sample, again, infrared range-measurement system is slowly slided along guide rail, is made its position
In the surface of concrete sample, infrared range-measurement system is opened, measures and records the slump angle value of concrete.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (8)
1. it is a kind of for testing the device of slump, including bottom plate（10）With bottom plate（10）The slump cylinder of flexible connection
（110）, the slump cylinder（110）For taper, which is characterized in that the bottom plate（10）On be additionally provided with jacking component, the jacking
Component includes cylinder（220）And cylinder block（210）, the cylinder（220）For telescopic cylinder, the cylinder block（210）Gu
It is located at bottom plate（10）On, the cylinder（220）It is fixed on cylinder block（210）On；
The slump cylinder（110）Outer wall on be installed with stripe board（130）, the stripe board（130）With cylinder（220）Piston rod
（230）Connection so that piston rod（230）Promote slump cylinder（110）It moves up and down, so as to fulfill slump cylinder（110）With concrete
Separation；
The slump cylinder（110）Outer wall be equipped with a pair of of handle（120）, the handle（120）For tester by slump cylinder（110）
It horizontally slips or moves up and down.
2. a kind of device for being used to test slump as described in claim 1, which is characterized in that further include to scrape
Smear slump cylinder（110）The transverse slat of top any excess concrete（330）Be used to support transverse slat（330）Riser（310）, the transverse slat
（330）And riser（310）It is articulated as one, and transverse slat（330）It can be rotated around articulation piece；
The transverse slat（330）Lower face and slump cylinder（110）Upper surface it is concordant so that scrape the concrete after smearing and slump cylinder
（110）Upper surface is concordant.
3. a kind of device for being used to test slump as claimed in claim 2, which is characterized in that further include slip
Scale, the upper end of the scale is equipped with the sliding block with slide cooperation, the transverse slat（330）Lower face be equipped with and slided for fixed
The cavity of rail, the scale is under the drive of sliding block along slide to slump cylinder（110）Direction movement, the scale is for surveying
Measure the slump of concrete.
A kind of 4. device for being used to test slump as described in claim 1, which is characterized in that the jacking component
Including two cylinder blocks being oppositely arranged（210）, it is arranged on cylinder block（210）On two cylinders（220）；
The stripe board（130）For two, respectively positioned at cylinder（220）Surface and with slump cylinder（110）Outer wall fix
Connection；
Two stripe boards（130）With cylinder（220）Piston rod（230）It removably connects, two gas
Cylinder（220）For balancing slump cylinder（110）The active force of vertical direction in lifting.
5. a kind of device for being used to test slump as described in claim 1, which is characterized in that further include and be placed on
Slump cylinder（110）The funnel of top, the funnel include the first noumenon of back taper（20-1）With columnar second body（20-
2）, the first noumenon（20-1）With the second body（20-2）It is fixedly connected；
The funnel is used to that concrete to be tested quickly to be poured into slump cylinder（110）It is interior, second body（20-2）From collapsing
Doffing（110）Small end insertion, the first noumenon（20-1）Outer wall and slump cylinder（110）Inner wall contact, by funnel and slump
Cylinder（110）It is relatively fixed.
6. a kind of device for being used to test slump as described in claim 1 or 4, which is characterized in that further include use
In control cylinder（220）The control system of lifting, the control system include ensureing cylinder（220）Piston steadily move
One synchronous valve and the second synchronous valve, for switching cylinder（220）Rodless cavity air inlet or outlet the first solenoid directional control valve and
Two solenoid directional control valves and for cylinder（220）The source of the gas of power is provided；
Source of the gas, the first solenoid directional control valve, the second solenoid directional control valve form the first pneumatic circuit, source of the gas, the second solenoid directional control valve, the
One synchronous valve, the second synchronous valve form the second pneumatic circuit；
First synchronous valve and cylinder（220）Rodless cavity connection, the second synchronous valve and cylinder（220）Rod chamber connection.
A kind of 7. device for being used to test slump as described in claim 1 or 4, which is characterized in that the bar shaped
Plate（130）Lower surface be equipped with the first magnet, the piston rod（230）End be equipped with the first magnet cooperation the second magnetic
Iron, the first magnet and the second magnet are attracting, so as to fulfill piston rod（230）With stripe board（130）Be fixedly connected；
Cylinder（220）By slump cylinder（110）After giving rise to certain altitude, tester holds handle（120）, inhaled using more than magnet
The external force of attached power lifts slump cylinder（110）, make slump cylinder（110）With cylinder（220）It is kept completely separate.
8. a kind of device for being used to test slump as claimed in claim 7, which is characterized in that further include and be arranged on
Transverse slat（330）Lower face and with slump cylinder（110）The concordant infrared range-measurement system in upper surface, the infrared range-measurement system are used to detect coagulation
Native slump, the infrared range-measurement system include：
Infra-red ray transmitting unit, the infra-red ray transmitting unit are used to emit vertical infrared ray to concrete sample top surface；
The infrared receiver unit being used cooperatively with infra-red ray transmitting unit, the infrared receiver unit are used for receiving infrared-ray
The infrared ray that transmitter unit sends and reflected by concrete sample top surface；
Timer, the timer is used to collecting infrared ray from being issued to time for being received, and the time is sent to list
Piece machine；Microcontroller, the microcontroller receive and process time signal, and the spread speed according to light is so as to obtaining concrete sample
Slump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442141.4U CN207440100U (en) | 2017-11-02 | 2017-11-02 | A kind of device for being used to test slump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442141.4U CN207440100U (en) | 2017-11-02 | 2017-11-02 | A kind of device for being used to test slump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207440100U true CN207440100U (en) | 2018-06-01 |
Family
ID=62291856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721442141.4U Expired - Fee Related CN207440100U (en) | 2017-11-02 | 2017-11-02 | A kind of device for being used to test slump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207440100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358182A (en) * | 2018-11-16 | 2019-02-19 | 四川兴城港瑞建材有限公司 | The operating method of commerical ready-mixed concrete detection device |
| CN110780058A (en) * | 2019-08-21 | 2020-02-11 | 浙江交工新材料有限公司 | Slump automatic checkout device |
-
2017
- 2017-11-02 CN CN201721442141.4U patent/CN207440100U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358182A (en) * | 2018-11-16 | 2019-02-19 | 四川兴城港瑞建材有限公司 | The operating method of commerical ready-mixed concrete detection device |
| CN109358182B (en) * | 2018-11-16 | 2021-01-15 | 四川兴城港瑞建材有限公司 | Operation method of commercial concrete detection device |
| CN110780058A (en) * | 2019-08-21 | 2020-02-11 | 浙江交工新材料有限公司 | Slump automatic checkout device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2016343320B2 (en) | Test system and test method for detecting cement content in pile body of cement mixing pile in real-time | |
| CN207440100U (en) | A kind of device for being used to test slump | |
| CN105181527B (en) | A kind of slump cone and Test Method For Workability of Self-compacting Concrete | |
| CN209280720U (en) | A kind of novel building slump test device | |
| CN108534680B (en) | Device for measuring physical size of high-altitude component and application method thereof | |
| CN207439860U (en) | A kind of concrete caving degree detecting device jacking rotating mechanism | |
| CN109507064A (en) | The experimental rig and test method of the real time measure pulp flowage performance | |
| CN106198311A (en) | A kind of device of accurate measurement concrete slump | |
| CN211825510U (en) | Concrete detects with assaulting survey device | |
| CN103969420B (en) | A kind of heavy compaction instrument | |
| CN209690309U (en) | A kind of integral type concrete slump detection device | |
| CN215678397U (en) | Road and bridge concrete detection device | |
| CN206431008U (en) | A kind of concrete slump detection means | |
| CN215833409U (en) | Fresh concrete testing device | |
| CN109187936A (en) | A kind of concrete strength detection device based on removable technology | |
| CN206085298U (en) | Easily get mould of test block | |
| CN209230466U (en) | A kind of cubic metre of earth of measurer for thickness | |
| CN212622605U (en) | Concrete slump tester | |
| CN211652391U (en) | On-spot direct shear test device that can dismantle of soil stone mixture | |
| CN210142047U (en) | Device for accurately testing gel compression strength | |
| CN203772860U (en) | Heavy compaction test apparatus | |
| CN207148110U (en) | A kind of fixing device of slump cone | |
| CN206430997U (en) | Plastic strength test device and system are supported at the beginning of autoclave aerated concrete building block base substrate | |
| CN207215818U (en) | A kind of concrete slump analyzer | |
| CN209764076U (en) | Floor tile roughness and hollowing detect instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20191102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |