CN107672031B - Very-high performance cementitious material vacuum is integrally formed testing machine - Google Patents
Very-high performance cementitious material vacuum is integrally formed testing machine Download PDFInfo
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- CN107672031B CN107672031B CN201710903366.3A CN201710903366A CN107672031B CN 107672031 B CN107672031 B CN 107672031B CN 201710903366 A CN201710903366 A CN 201710903366A CN 107672031 B CN107672031 B CN 107672031B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/067—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of stationary hoppers, chambers or bins from which the material is fed gravitationally, e.g. having agitating means therein
-
- 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
- G01N1/38—Diluting, dispersing or mixing 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
- G01N1/38—Diluting, dispersing or mixing samples
- G01N2001/386—Other diluting or mixing processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Very-high performance cementitious material vacuum is integrally formed testing machine, it is related to a kind of forming tester.Very-high performance cementitious material introduces excessive gas during original bulk and stirring molding and performance is caused sharply to decline, complicated material order of addition and require stringent mixing time that it is made to be difficult to realize integrated molding, there is also atmospheric environments and manual operation deteriorate influence caused by material property leads to the problem of maintenance quality difference.The inside of tank body has level-one to be stirred under vacuum room and secondary vacuum teeter chamber in the present invention；Level-one is stirred under vacuum interior and sets shunt mixing component, guiding piece and component is mixed, and shunt mixing component feed end is connected by guiding piece with the feed end that component is mixed towards feed inlet, shunt mixing component discharge end；Shake table and temperature and humidity adjustment component are equipped in secondary vacuum teeter chamber, the top of shake table is equipped with molding die.The present invention is in the stirring molding and maintenance test of very-high performance cementitious material.
Description
Technical field
The present invention relates to a kind of building material technical fields, and in particular to a kind of very-high performance cementitious material vacuum one at
Type testing machine.
Background technique
Very-high performance cementitious material had both possessed far superior to common building concrete material as a kind of emerging construction material
The structural mechanical property of material, also as largely containing huge economic value and energy conservation using mineral admixture substitution cement consumption
The value of environmental protection.Current research achievement shows that the physical and mechanical property of very-high performance cementitious material is applying high temperature, high pressure, steaming
It has been able to reach the even higher compression strength of 800MPa under vapour or a variety of pretreatment measure collective effects, and due to universal
Toughening material is added, it possesses higher toughness and tensile strength compared with conventional cement concrete material, is suitable for requiring more
In high engineering position and field.Preparation in view of very-high performance cementitious material in research field mostly uses the close of solid particle
Accumulation is theoretical to be used as design considerations, and all can inevitably be mixed under solid particle natural packing state and during mixing molding
Or the composition of air for being largely originally not belonging to design of material system is stirred into, system volume on the one hand will be increased and then reduces material
Hybrid density and degree of combining closely, on the other hand remaining air will become cementitious material system after hardening due to size
In apparent gas hole defect and weakness, the physical and mechanical property of serious deterioration material, in addition, according to the related experiment knot of laboratory
Fruit prepares the generally existing gas introducing effect of high-performance diminishing component necessary to very-high performance cementitious material, greatly influences
Material original design performance, so from the point of view of research angle and practical application angle, establish one can be avoided it is external big
The integrated molding system that compression ring border influences is necessary.
Material processing and molding instrument and method are carried out using vacuum means there are some in laboratory and engineer application,
Small-sized has the molding de-airing mixer of dentistry common used material, and large-scale has engineering material de-airing mixer, but all exists bright
Aobvious application limitation can not solve the problems, such as original material processing and one chemical conversion that very-high performance cementitious material is encountered at present
Type problem.
Summary of the invention
The invention aims to very-high performance cementitious materials to introduce excessive gas during original bulk and stirring molding
Body and cause performance sharply to decline, it is difficult to realize integrated molding, while there is also atmospheric environments and manual operation to material
Deterioration caused by energy influences the problem for leading to maintenance quality difference, and then provides very-high performance cementitious material vacuum and be integrally formed test
Machine.
The technical solution adopted by the present invention to solve the above technical problem is:
Very-high performance cementitious material vacuum is integrally formed testing machine, it includes tank body, and tank body is vertically arranged, the upper end of tank body
For feed inlet, the inside of tank body has successively been separated to form level-one from top to bottom and has been stirred under vacuum room and secondary vacuum teeter chamber, and first
Vacuum machine is arranged on the outer wall of tank body and it is stirred under vacuum room with level-one and is connected, and the outer wall of tank body is arranged in the second vacuum machine
Above and it is connected with secondary vacuum teeter chamber, and discharge port is machined on the outer wall of tank body, and discharge port and level-one are stirred under vacuum room
It is connected；
The level-one is stirred under vacuum interior and is disposed with shunt mixing component, guiding piece and mixing from top to bottom
Component, the feed end of shunt mixing component towards feed inlet, the discharge end of shunt mixing component by guiding piece with mix
The feed end of mixing component is connected；
It is provided with shake table in the secondary vacuum teeter chamber, molding die, secondary vacuum are provided at the top of shake table
Temperature and humidity adjustment component is additionally provided in teeter chamber, the feed end of molding die is connected with the discharge end that component is mixed.
Very-high performance cementitious material vacuum is integrally formed testing machine, and preferably, shunt mixing component includes more
A mixing chamber, multiple mixing chambers are evenly arranged on the inner wall of tank body, and the upper end of each mixing chamber is material inlet, each stirring
Stirring blade is provided in storehouse, the lower end of each mixing chamber is material outlet, is correspondingly arranged at the material outlet of each mixing chamber
There is delay discharging device.
Very-high performance cementitious material vacuum is integrally formed testing machine, and preferably, tank body is cylinder, multiple stirrings
Storehouse is correspondingly arranged on a fixation along the inner wall that the radial direction of cylinder is evenly arranged on cylinder on the outer wall of each mixing chamber
Seat, each mixing chamber are detachably connected by the inner wall of its corresponding fixing seat and tank body.
Very-high performance cementitious material vacuum is integrally formed testing machine, and preferably, it includes stirring that component, which is mixed,
Tank and axle horizontal type blender, the upper end of agitator tank are provided with guiding piece, and the stirring end of axle horizontal type blender is arranged in agitator tank,
The lower end of axle horizontal type blender is machined with the outlet of stirring material, and the outlet of stirring material is connected with the feed end of molding die, stirring material
Outlet passes through control feeding switch control closure or openness state.
Very-high performance cementitious material vacuum is integrally formed testing machine, and preferably, the shape of guiding piece is infundibulate,
The upper end of guiding piece is connected with the material outlet of each mixing chamber, and the lower end of guiding piece is connected with the upper end of agitator tank.
Very-high performance cementitious material vacuum is integrally formed testing machine and is preferably provided with sight on the outer wall of tank body
Window is examined, the side of observation window and the outer wall of tank body are hinged.
Very-high performance cementitious material vacuum is integrally formed testing machine, and preferably, temperature and humidity adjustment component includes temperature
Spend adjuster, humidistat and temperature and humidity controller, the thermoregulator is arranged in the bottom of tank body, humidistat and
Temperature and humidity controller is separately positioned on the inner wall of tank body, thermoregulator receive temperature and humidity controller temperature control signals into
Trip temperature is adjusted, and the humidity control signal that humidistat receives temperature and humidity controller carries out humidity regulation.
Very-high performance cementitious material vacuum is integrally formed testing machine, and preferably, it further includes upper cover, the upper cover
It is detachably connected at the feed inlet of tank body.
The present invention compared with prior art the utility model has the advantages that
1, each component connection and reasonable arrangement in the present invention, can be realized to original material continuously integrated processing, this hair
The bright very-high performance cementitious material that efficiently solves introduces excessive gas during original bulk and stirring molding and leads to performance
Sharply decline, complicated material order of addition and require stringent mixing time that it is made to be difficult to realize integrated molding, simultaneously also
There is a problem of that atmospheric environment and manual operation are deteriorated caused by material property influences to cause maintenance quality difference.
2, shunt mixing component is correspondingly arranged below each mixing chamber for handling and temporarily storing original material
Be delayed discharging device, and by the control for the discharging device that is delayed, original material is entered mixing by guiding piece according to different order
In mixing component, the cementitious material for meeting workability requirement is entered by agitator tank in the molding die of secondary vacuum molding room,
Slurry troubled water is monitored in real time by the observation window on tank body, later by molding die in shake table and temperature and humidity adjustment group
Optimization molding and maintenance work are completed to cementitious material under the collective effect of part.
3, the present invention makes level-one vacuum stirring room and second level true respectively by the setting of the first vacuum machine and the second vacuum machine
Empty teeter chamber forms vacuum environment, to be provided with for the original material processing of very-high performance cementitious material and mixing process
Effect and stability test environment, largely reduce the air carried secretly between particle under solid particulate materials natural packing state and
It is mixed into the air swept along with diminishing component in whipping process, so that cementitious material system entirety compaction rate greatly improves, avoids
Deterioration and weakening of the gas that atmosphere outside introduces to material system after hardening；Shunt mixing component, guidance simultaneously
It part and component is mixed matches and can satisfy in very-high performance cementitious material design process for material order by merging and every
Complicated the requiring of a part stirring duration, and keep vacuum environment until cementitious material is smoothly in molding die, so as to
It is enough further to improve whole system to the avoiding measures of atmosphere environment impact.
4, the setting of temperature and humidity adjustment component can be such that the present invention has suitable for multiple material and a variety of maintenance modes,
Effectively enhance flexibility of the invention and universal.
5, the present invention requires to set different parameters according to Scientific experimental design or engineering test, for very-high performance gelling material
Material utilizes a variety of test models of offer.Integrally integrated system of systems design simplifies test operation to the present invention, reduces
The difficulty of material application and research, provides help for further scientific experimentation and engineering utilization.
6, the present invention is obtained according to prototype test, the status concentrated on μm or more with the distribution of traditional ordinary cement slurry body aperture
It compares, the present invention can make the UHPC pore-size distribution of very-high performance cementitious material concentrate on nm rank, it is ensured that very-high performance gelling
The properties of material are high-quality and stablize.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is the sectional view in Fig. 1 at L-L.
Specific embodiment
Specific embodiment 1: illustrate that present embodiment, including tank body A, tank body A are vertically arranged in conjunction with Fig. 1 and Fig. 2, tank
The upper end of body A is feed inlet, and the inside of tank body A has successively been separated to form level-one from top to bottom and has been stirred under vacuum room 1 and secondary vacuum
Teeter chamber 2, the first vacuum machine 1-1 is arranged on the outer wall of tank body A and it is stirred under vacuum room 1 with level-one and is connected, the second vacuum
Machine 2-1 is arranged on the outer wall of tank body A and it is connected with secondary vacuum teeter chamber 2, is machined with discharge port on the outer wall of tank body A
1-6, discharge port 1-6 are stirred under vacuum room 1 with level-one and are connected；
The level-one is stirred under vacuum in room 1 and is disposed with shunt mixing component, guiding piece 1-3 and mixing from top to bottom
Mixing component, for the feed end of shunt mixing component towards feed inlet, the discharge end of shunt mixing component passes through guiding piece 1-3
It is connected with the feed end that component is mixed；
It is provided with shake table 2-6 in the secondary vacuum teeter chamber 2, molding die 2- is provided at the top of shake table 2-6
2, it is additionally provided with temperature and humidity adjustment component in secondary vacuum teeter chamber 2, the feed end of molding die 2-2 and component is mixed
Discharge end is connected.
Tank body A is tank body made of stainless steel in present embodiment.
The setting of the first vacuum machine 1-1 and the second vacuum machine 2-1 can be completed respectively to level-one vacuum in present embodiment
The timely adjustment and number display of teeter chamber 1 and secondary vacuum teeter chamber 2, set vacuum according to different tests and engine request
Degree value.Level-one is stirred under vacuum room 1 and the vacuum values of secondary vacuum teeter chamber 2 respectively control, flexible operation.
Molding die 2-2 is punching block, swage or plastic mould in present embodiment, is arranged according to concrete mode different
Quantity.The parameter setting of shake table 2-6 need to meet test and Engineering Vibration frequency requirement, and shake table 2-6 can also be set as ring
Shape shake table, molding die 2-2 by setting annular vibration device as pedestal, add annular rotating device can be completed it is multiple
The process that sample is successively formed and conserved.
Specific embodiment 2: illustrating present embodiment in conjunction with Fig. 1 and Fig. 2, shunt mixing component includes multiple stirrings
Storehouse 1-2-1, multiple mixing chamber 1-2-1 are evenly arranged on the inner wall of tank body A, the upper end of each mixing chamber 1-2-1 be material into
Mouthful, stirring blade is provided in each mixing chamber 1-2-1, the lower end of each mixing chamber 1-2-1 is material outlet, each mixing chamber
Delay discharging device 1-2-4 is correspondingly arranged at the material outlet of 1-2-1.
Each mixing chamber 1-2-1 carries out raw material under vacuum conditions and carries out degassing processing in present embodiment.Delay is put
Material device 1-2-4 is existing product, is a kind of sequence switch, is controlled by the unlatching and closure for the discharging device 1-2-4 that is delayed
Mixing time needed for different materials and export time, multiple mixing chamber 1-2-1 are according to different order by original material by drawing
Guiding element 1-3, which is introduced, is mixed component.Other unmentioned contents are same as the specific embodiment one.
Specific embodiment 3: illustrating present embodiment in conjunction with Fig. 1 and Fig. 2, tank body A is cylinder, multiple mixing chamber 1-
2-1 is correspondingly arranged on one on the outer wall of each mixing chamber 1-2-1 along the inner wall that the radial direction of cylinder is evenly arranged on cylinder
A fixing seat 1-2-2, each mixing chamber 1-2-1 are detachably connected by the inner wall of its corresponding fixing seat 1-2-2 and tank body A.
The shape of tank body A is cylinder-shaped, square box shape or other shapes in present embodiment.It is distributed on the inner wall of tank body A
At least four mixing chamber 1-2-1.Other unmentioned contents are the same as one or two specific embodiments.
Specific embodiment 4: embodiment is described with reference to Fig. 1, it includes stirring that component is mixed in present embodiment
Tank 1-4 and axle horizontal type blender 1-5, the upper end of agitator tank 1-4 are provided with guiding piece 1-3, the stirring end of axle horizontal type blender 1-5
Be arranged in agitator tank 1-4, the lower end of axle horizontal type blender 1-5 be machined with stirring material outlet 1-7, stirring material outlet 1-7 at
The feed end of pattern tool 2-2 is connected, and stirring material outlet 1-7 controls closure or openness state by control feeding switch 1-6.
The driving part of axle horizontal type blender 1-5 is arranged on the outer wall of tank body A in present embodiment.Axle horizontal type blender
1-5 is existing product, and the course of work is same as the prior art.The setting of axle horizontal type blender 1-5 can preferably stir material
Material sufficiently release is internal to adhere to air, can be effective by the material outlet of the mixing chamber 1-2-1 of delay discharging device 1-2-4 control
The time point of control release stirring material and slurry amount.Other unmentioned contents are identical as specific embodiment one, two or three.
Specific embodiment 5: embodiment is described with reference to Fig. 1, the shape of guiding piece 1-3 is infundibulate, guiding piece 1-
3 upper end is connected with the material outlet of each mixing chamber 1-2-1, and the lower end of guiding piece 1-3 is connected with the upper end of agitator tank 1-4
It is logical.
Guiding piece 1-3 is shaped to funnel shaped purpose and is that powder granule is facilitated to can smoothly enter into present embodiment
Inner wall smooth and the drying that can ensure guiding piece 1-3 is arranged in lower section agitator tank 1-4, infundibulate.Other unmentioned contents with
Specific embodiment one, two, three or four are identical.
Specific embodiment 6: embodiment is described with reference to Fig. 1, it is provided on the outer wall of tank body A in present embodiment
Observation window 4, the side of observation window 4 and the outer wall of tank body A are hinged.Handle 4-1 is provided on observation window 4.
Observation window 4 is tempered glass observation window in present embodiment.Other unmentioned contents and specific embodiment one,
Two, three, four or five are identical.
Specific embodiment 7: embodiment is described with reference to Fig. 1, temperature and humidity adjustment component includes temperature in present embodiment
The bottom of tank body A is arranged in degree adjuster 2-3, humidistat 2-4 and temperature and humidity controller 2-5, the thermoregulator 2-3
Portion, humidistat 2-4 and temperature and humidity controller 2-5 are separately positioned on the inner wall of tank body A, and thermoregulator 2-3 receives temperature
The temperature control signals of humidity controller 2-5 carry out temperature adjusting, and humidistat 2-4 receives the wet of temperature and humidity controller 2-5
Degree control signal carries out humidity regulation.
Thermoregulator 2-3, humidistat 2-4 and temperature and humidity controller 2-5 are existing product in present embodiment,
Thermoregulator 2-3, humidistat 2-4 and temperature and humidity controller 2-5, can real-time monitoring form indoor environmental condition,
The maintenance stage after vacuum forming requires accordingly to be arranged according to different samples, and can complete real time monitoring and mistake
Alarm.
Thermoregulator 2-3 and temperature and humidity controller 2-5 matches realization control secondary vacuum stirring in present embodiment
The process that temperature is adjusted in room 2 is same as the prior art, and humidistat 2-4 and temperature and humidity controller 2-5 match realization control
The process of humidity regulation is same as the prior art in secondary vacuum teeter chamber 2 processed, other, which can be played, adjusts temperature and humidity
Existing component is alternative.Other unmentioned contents and specific embodiment one, two, three, four, five or six are identical.
Specific embodiment 8: embodiment is described with reference to Fig. 1, it further include upper cover B, the upper cover in present embodiment
B is detachably connected at the feed inlet of tank body A.
Upper cover B is detachably connected by fastening bolt B1 and fixture nut B2 and tank body A in present embodiment.Upper cover B's
Material is identical as the material of tank body A, is provided with sealant between upper cover B and tank body A, to guarantee fastening bolt B1 and fixture nut
B2 is closed enough after tightening.Other unmentioned contents and specific embodiment one, two, three, four, five, six or seven are identical.
Specific embodiment 9: embodiment is described with reference to Fig. 1, the inside of tank body A passes through partition 3 in present embodiment
It is divided into level-one and is stirred under vacuum room 1 and secondary vacuum teeter chamber 2.
Itself setting position of partition 3 will ensure stable and firm under vacuum environment in present embodiment, so that it is guaranteed that level-one
It is stirred under vacuum between room 1 and secondary vacuum teeter chamber 2 and is able to maintain excellent sealing effect, the air-proof condition of observation window 4 meets true
Sky requires, and angle is rationally convenient for observing sample molding and maintenance processes, while providing the handle 4-1 being arranged on observation window 4 and being convenient for
Observation window 4 is opened, for carrying out necessary handling and operation.Other unmentioned contents and specific embodiment one, two, three, four,
Five, six, seven or eight are identical.
Specific embodiment 10: embodiment is described with reference to Fig. 1, level-one is stirred under vacuum room 1 and two in present embodiment
The volumetric ratio that grade is stirred under vacuum room 2 is 3:1.Such setting can ensure that the present invention is continuously stirred into good integration
Type process provides sufficient room and time for whipping process, concentrates on the UHPC pore-size distribution of very-high performance cementitious material
Nm rank, it is ensured that the properties of very-high performance cementitious material are high-quality and stablize.Other unmentioned contents and specific embodiment party
Formula one, two, three, four, five, six, seven, eight or nine are identical.
Specific embodiment 11: embodiment is described with reference to Fig. 1, obtains by multiple prototype test, very-high performance
Air vent aperture focuses primarily upon nm rank in cementitious material.Has the UHPC of superhigh intensity and excellent properties generally due to its viscosity
The characteristics such as big and admixture high-performance water reducing agent bleed introduce gas easily in whipping process and then weaken original performance, and material is
Just it is formed under non-stirring state, system can also have the air content of 5.7-7.3% after hardening.And as influence viscosity and bleed
The high-performance water reducing agent of one of effect reason, it is most important irreplaceable in the production of very-high performance cementitious material, but stirring
During mixing again easily due to itself wrapping up in gas, bleed effect cause the reduction of cementitious material system compactness, so the present invention according to
The difference of vacuum stirring process vacuum degree and the condition difference of the subsequent maintenance of vacuum forming, can greatly avoid introducing a large amount of gas
The influence of body to body system compaction rate and intensity, the further requirements at the higher level for improving material property and meeting special occasions.This hair
The correlation data of bright multiple the prototype test results and the prior art such as following table one, table one be different vacuum degree stirring conditions under, it is general
The attainable different porosities of logical coagulation system and very-high performance cementitious material system institute:
Table one
Other unmentioned contents and specific embodiment one, two, three, four, five, six, seven, eight, nine or ten are identical.
The course of work of the invention:
Molding die 2-2 is pre-placed in secondary vacuum teeter chamber 2, weighs respective material simultaneously according to optimization design ratio
It is placed in shunt mixing component, by fastening bolt B1 and fixture nut B2 fastening upper cover B and tank body A, vacuum needed for being arranged
The first vacuum machine 1-1 and the second vacuum machine 2-1 are spent and opened, open shunt mixing component after reaching predetermined vacuum degree and is kept
Vacuum degree, after meeting the pretreatment time of material requested, open time delay blowing fill 1-2-4, by guiding piece 1-3 by material according to
It is centainly sequentially introduced into and is mixed in component, stirred after reaching cementitious material workability requirement by control feeding switch 1-6 unlatching
Spice exports 1-7, and cementitious material can smoothly enter into the molding die 2-2 of secondary vacuum teeter chamber 2, closes stirring material outlet 1-7,
Early stage is completed to sample by shake table 2-6 in secondary vacuum teeter chamber 2 and temperature and humidity adjustment component to handle.
Claims (10)
1. a kind of very-high performance cementitious material vacuum is integrally formed testing machine, it is characterised in that: it includes tank body (A), tank body (A)
It is vertically arranged, the upper end of tank body (A) is feed inlet, and the inside of tank body (A) has successively been separated to form level-one vacuum from top to bottom and has stirred
Mix room (1) and secondary vacuum teeter chamber (2), the first vacuum machine (1-1) is arranged on the outer wall of tank body (A) and itself and level-one vacuum
Teeter chamber (1) is connected, and the second vacuum machine (2-1) is arranged on the outer wall of tank body (A) and itself and secondary vacuum teeter chamber (2) phase
Connection；
The level-one is stirred under vacuum in room (1) is disposed with shunt mixing component, guiding piece (1-3) and mixing from top to bottom
Mixing component, for the feed end of shunt mixing component towards feed inlet, the discharge end of shunt mixing component passes through guiding piece (1-
3) it is connected with the feed end that component is mixed；
It is provided with shake table (2-6) in the secondary vacuum teeter chamber (2), is provided with molding die at the top of shake table (2-6)
(2-2), is additionally provided with temperature and humidity adjustment component in secondary vacuum teeter chamber (2), and the feed end of molding die (2-2) is stirred with mixing
The discharge end for mixing component is connected.
2. very-high performance cementitious material vacuum according to claim 1 is integrally formed testing machine, it is characterised in that: shunt
Mixing component includes multiple mixing chambers (1-2-1), and multiple mixing chambers (1-2-1) are evenly arranged on the inner wall of tank body (A), each
The upper end of mixing chamber (1-2-1) is material inlet, is provided with stirring blade, each mixing chamber (1- in each mixing chamber (1-2-1)
Lower end 2-1) is material outlet, and delay discharging device (1-2- is correspondingly arranged at the material outlet of each mixing chamber (1-2-1)
4)。
3. very-high performance cementitious material vacuum according to claim 2 is integrally formed testing machine, it is characterised in that: tank body
It (A) is cylinder, multiple mixing chambers (1-2-1) are along the inner wall that the radial direction of cylinder is evenly arranged on cylinder, each stirring
A fixing seat (1-2-2) is correspondingly arranged on the outer wall in storehouse (1-2-1), each mixing chamber (1-2-1) is corresponding solid by its
Reservation (1-2-2) and the inner wall of tank body (A) are detachably connected.
4. very-high performance cementitious material vacuum according to any one of claim 1 to 3 is integrally formed testing machine, feature
Be: it includes agitator tank (1-4) and axle horizontal type blender (1-5) that component, which is mixed, and the upper end of agitator tank (1-4), which is provided with, draws
Guiding element (1-3), the stirring end setting of axle horizontal type blender (1-5) is in agitator tank (1-4), under axle horizontal type blender (1-5)
End is machined with stirring material outlet (1-7), and stirring material outlet (1-7) is connected with the feed end of molding die (2-2), and stirring expects
Mouth (1-7) passes through control feeding switch (1-6) and controls closure or openness state.
5. very-high performance cementitious material vacuum according to claim 4 is integrally formed testing machine, it is characterised in that: guiding piece
The shape of (1-3) is infundibulate, and the upper end of guiding piece (1-3) is connected with the material outlet of each mixing chamber (1-2-1), is guided
The lower end of part (1-3) is connected with the upper end of agitator tank (1-4).
6. very-high performance cementitious material vacuum according to claim 5 is integrally formed testing machine, it is characterised in that: tank body
(A) it is provided on outer wall observation window (4), the side of observation window (4) and the outer wall of tank body (A) are hinged.
7. very-high performance cementitious material vacuum according to claim 1 is integrally formed testing machine, it is characterised in that: temperature and humidity
Adjusting component includes thermoregulator (2-3), humidistat (2-4) and temperature and humidity controller (2-5), the thermoregulator
(2-3), which is arranged, is separately positioned on tank body (A) in the bottom of tank body (A), humidistat (2-4) and temperature and humidity controller (2-5)
Inner wall on, thermoregulator (2-3) receive temperature and humidity controller (2-5) temperature control signals carry out temperature adjusting, humidity
The humidity control signal that adjuster (2-4) receives temperature and humidity controller (2-5) carries out humidity regulation.
8. according to claim 1, very-high performance cementitious material vacuum described in 2,3,5,6 or 7 is integrally formed testing machine, feature
Be: it further includes upper cover (B), and the upper cover (B) is detachably connected at the feed inlet of tank body (A).
9. very-high performance cementitious material vacuum according to claim 8 is integrally formed testing machine, it is characterised in that: tank body
(A) inside is divided into level-one by partition (3) and is stirred under vacuum room (1) and secondary vacuum teeter chamber (2).
10. according to claim 1 or very-high performance cementitious material vacuum described in 9 is integrally formed testing machine, it is characterised in that: one
The volumetric ratio that grade is stirred under vacuum room (1) and secondary vacuum teeter chamber (2) is 3:1.
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| CN109079973B (en) * | 2018-08-28 | 2020-10-02 | 安徽新网讯科技发展有限公司 | Building cement indoor test maintenance device and method |
| CN110608929A (en) * | 2019-08-02 | 2019-12-24 | 广东工业大学 | Automatic sample preparation equipment |
| CN112356274B (en) * | 2020-10-22 | 2024-09-27 | 郑州大学 | Forced vacuum mixer for preparing 3D printing ultra-high performance concrete |
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| EP0223008B1 (en) * | 1983-04-19 | 1990-11-14 | Yoshiaki Hattori | Gypsum powder materials for making models and molds, and a method for producing them |
| CN1020079C (en) * | 1985-07-26 | 1993-03-17 | M·汤塞尼 | Method and apparatus for forming blocks in vacuum |
| CN205929195U (en) * | 2016-08-04 | 2017-02-08 | 长兴明天炉料有限公司 | Pouring device |
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