CN109521187A - One kind is for detecting cement slurry self-constriction device and method - Google Patents
One kind is for detecting cement slurry self-constriction device and method Download PDFInfo
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- CN109521187A CN109521187A CN201811470103.9A CN201811470103A CN109521187A CN 109521187 A CN109521187 A CN 109521187A CN 201811470103 A CN201811470103 A CN 201811470103A CN 109521187 A CN109521187 A CN 109521187A
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- pours
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- scraper plate
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- 239000004568 cement Substances 0.000 title claims abstract description 74
- 239000002002 slurry Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000004321 preservation Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 239000004567 concrete Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000002956 ash Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000010365 information processing Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
It is used to detect cement slurry self-constriction device and method the invention discloses one kind, including pours mechanism, sliding equipment, bindiny mechanism, test macro and heat-insulation system.The mechanism that pours includes that movable type pours mold, cavity, scraper plate, sleeve and sponge block；The sliding equipment includes T-type sliding slot, T-type sliding block and slide bar；The bindiny mechanism includes fixed block, bolt, connecting plate and swingle；The test macro includes pressure sensor, convex item and external display port；The heat-insulation system includes incubator, thermocouple, bellows and port.The present invention predominantly detects high-strength cement slurry, autotest is carried out after setting temperature and wind speed parameter, the present invention is easy to use, novel in design, portable, directly the data of internal pressure sensor can be handled, guarantee that data are not influenced really by other factors, simultaneously after the completion of test, cleaning can be directly dismantled, it is very efficient and convenient.
Description
Technical field
The present invention relates to cement-based material technical field of performance test, and in particular to one kind is for detecting cement slurry from receipts
Compression apparatus and method.
Background technique
In-situ cement concrete early-age crack is problem more universal in an engineering.In recent years, with high-strength high property
The extensive use of energy concrete, water-cement ratio is also lower and lower, so that cement slurry self-constriction problem becomes more serious.Therefore,
How to reduce the self-constriction problem of cement slurry, especially Early self-shrinkage have become reduce crack and improve works it is durable
The key of performance.For high-strength concrete, cement slurry dosage is larger, glue is relatively low, therefore self-constriction cannot be by
Ignore, under conditions of deforming restrained, self-constriction, dry contraction and temperature shrinkage are all the masters for causing concrete bracing
The principal element wanted reason, and generate these contractions is exactly the hydration process of cementing material.Currently, for cement slurry self-constriction
Measurement there is no unified standard, and measurement method is measured from dimensional deformation and displacement, can not actual response inside it
Shrinking law, it is therefore necessary to design a kind of test device for capableing of test constantly cement slurry internal contraction situation.
Summary of the invention
To solve the above problems, the present invention provides a kind of for detecting cement slurry self-constriction device and side
Method.
The present invention is achieved through the following technical solutions:
One kind proposed by the present invention is used to detect cement slurry self-constriction device, including pours mechanism, sliding equipment, connection machine
Structure, test macro and heat-insulation system, the mechanism that pours includes that movable type pours mold, cavity, two scraper plates, sleeve and sponge
Block；The sliding equipment includes two T-type sliding slots, two T-type sliding blocks and slide bar；The bindiny mechanism includes fixed block, two
Bolt, connecting plate and swingle；The test macro includes pressure sensor and convex item；The heat-insulation system includes heat preservation
Case, thermocouple, bellows and port；
The top surface two sides that movable type pours mold are symmetrically fixed with hand handle, and movable type pours to be fixedly connected on one inner sidewall of mold
Several pressure sensors are distributed on the convex item in convex item, and movable type pours the ambilateral one end of mould and passes through port respectively
It is inserted into incubator, the movable type in incubator pours mold two sides and is equipped with thermocouple, the top of the thermocouple
It is fixedly connected respectively with the inner top surface of incubator and inner bottom surface with bottom end, the two sides of incubator bottom end are symmetrically fixed with bellows, institute
The bottom wall for stating incubator is equipped with cavity, and the cavity is connected to bellows by several first through hole, the cavity and heat preservation
It is connected to inside case by several second through-holes；The heat preservation box outer wall two sides are symmetrically arranged with fixed block, spiral shell on the fixed block
Line is connected with the first bolt, and slide bar is slidably connected in the fixed block, and the bottom surface that the slide bar bottom end passes through fixed block is fixed
It is connected with block, two top end of sliding rod both pass through fixed block top surface and are fixedly connected with the first scraper plate, and first scraper plate is located at two
Between slide bar, first scraper plate side pours mould side wall with movable type and is bonded, and described first scrapes plate top surface equipped with the 2nd T
Type sliding slot slidably connects the second T-type sliding block in the second T-type sliding slot, and the top of the second T-type sliding block is pierced by the 2nd T
Type sliding slot is fixedly connected with the second scraper plate, and second scraper plate is scraped plate top surface with first and is bonded；It is right outside the incubator one side wall
Claim to be equipped with the first T-type sliding slot, slidably connects the first T-type sliding slot in the first T-type sliding slot, the one of the first T-type sliding slot
End is pierced by the first T-type sliding slot and is fixedly connected with motor, is fixedly connected between two motors by connecting plate, is set on the connecting plate
There are several second bolts and be connected through a screw thread with it, the output end of each motor is fixedly connected with swingle, described
Set there are three sleeve and is firmly connected with it, sponge block is cased on the sleeve and is firmly connected with it on swingle, several
A sponge block is between the first scraper plate and incubator.
In the present invention, the width of first scraper plate scrapes board width 3-5 ㎝ less than second.
In the present invention, the electric fan and thermocouple are separately connected external switch, and electric fan and thermocouple are jointly by outside
Switch is controlled.
In the present invention, the movable type between two hand handles pours die top and is fixed with external display port, convex item
On also have external display port.
In the present invention, insulation film is enclosed with outside the incubator, inside accompanies froth bed.
In the present invention, the motor connects extraneous power supply.
The test method proposed by the present invention for being used to detect cement slurry self-constriction device, comprising the following steps:
(1) it prepares high-strength cement slurry, opens motor, newly will mix high-strength cement slurry and pour into movable type and pour in mold, go forward side by side
Row slightly vibrates, until surface is emerged without air pocket；
(2) after the completion of pouring, motor is closed, as pushing hand handle that cement slurry obtained by step (1) is pushed into incubator, benefit
Extra cement slurry is struck off with the second scraper plate with the first scraper plate, and with the extra slurry outside wet towel erasing apparatus；
(3) motor is opened, the sleeve rotating being fixedly connected on swingle is driven by motor, so that sponge block rotates, it is right
The side wall top surface that movable type pours mold generates wiping, will further be sticked to the mobile cement poured on mould side wall and wipes
Fall, it is ensured that the movable type for entering incubator pours mould side wall and keeps clean；
(4) after movable type, which pours mold, to be pushed into incubator, the first T-type sliding block in the first T-type sliding slot, and then band are slided
Dynamic second scraper plate is bonded one Slideslip of the first scraper plate, and the cement being stained on the first scraper plate is hung；
(5) it will be used to detect cement slurry self-constriction device to be put at horizontal drying, and by adjusting thermocouple and two bellows
Change movable type and pours temperature and wind speed in mold；
(6) the drying shrinkage change value of pressure of test specimen each age is recorded by the pressure sensor being covered on convex item.
It in the present invention, after the completion of test job, turns the second bolt, its motor is slided on incubator, drive
Sponge block and sleeve on swingle are moved on incubator one side, then are fixed by the second bolt, equally turn
One bolt, the sliding bar being fixed in block, and then drive the first scraper plate to be bonded with incubator side wall and fix again.
Preferably, the sponge block is rectangular blocks.
Preferably, the electric fan is controlled by external control device jointly with thermocouple.
Preferably, the movable type, which pours mold and connect external information processing system with convex item, is analyzed.
Preferably, when sponge block level, the bottom surface of sponge block pours mould side wall top surface with movable type and is not bonded, and works as sea
When continuous block is vertical, the bottom surface of sponge block pours 2 ㎝ -3 ㎝ of mould side wall top surface lower than movable type, when rotation, sponge block and movement
Formula pours mould side wall top surface and fits closely.
Preferably, it is about the 0.7V- that movable type pours mold volumes that the movable type, which pours the cement amount being added in mold,
0.8V, wherein V is that movable type pours mold volumes.
Preferably, when in use, mobile pour the 4/5 of mold volumes outside incubator.
Compared with prior art, the beneficial effects of the present invention are: will can effectively pour extra cement by the first scraper plate
Extension, and avoids extra cement from adhering in heat preservation box inner wall and its movable type is poured mold clings, ensure that next time uses
It is convenient smooth, while the side wall top surface that sponge block rotation pours mold to movable type generates wiping, further ensures that and enters guarantor
The movable type of incubator pours mould side wall and keeps clean, does not have cement sand influence movable type and pours cunning of the mold in incubator
It is dynamic, after the completion of working, can by swingle sponge block and sleeve be moved on incubator one side, and the first scraper plate and protect
The fitting of incubator side wall effectively reduces space occupied, while also avoiding scratching, and the present apparatus can so that it is convenient to device placement
Directly to handle the data of internal pressure sensor, guarantee that data are not influenced really by other factors, while surveying
After the completion of examination, cleaning can be directly dismantled, it is very efficient and convenient.
Detailed description of the invention
Fig. 1 is the schematic diagram of structure of the present invention；
Fig. 2 is the partial schematic diagram of structure of the present invention；
Fig. 3 is the partial enlarged view of structure of the present invention；
Fig. 4 is the partial bottom view of structure of the present invention；
Fig. 5 is the local appearance figure of structure of the present invention；
Figure label: 1 be movable type pour mold, 2 be external display port, 3 be pressure sensor, 4 be thermocouple, 5 be heat preservation
Case, 6 be bellows, 7 be electric fan, 8 be venthole, 9 be first through hole, 10 be cavity, 11 be the second through-hole, 12 be the first T-type
Sliding slot, 13 be block, 14 be fixed block, 15 be the first bolt, 16 be the first T-type sliding block, 17 be connecting plate, 18 be the second spiral shell
Bolt, 19 be motor, 20 be swingle, 21 be sponge block, 22 be sleeve, 23 be slide bar, 24 be the first scraper plate, 25 be the second T-type
Sliding slot, 26 be hand handle, 27 be the second T-type sliding block, 28 be the second scraper plate, 29 be port, 30 be convex item.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
Embodiment 1: as shown in figure 1, figure 2, figure 3, figure 4 and figure 5, one kind is wrapped for detecting cement slurry self-constriction device and method
It includes movable type and pours mold 1, the top surface two sides that the movable type pours mold 1 are symmetrically fixedly connected with hand handle 26, two hand handles
Movable type between 26 pours 1 top surface of mold and is fixedly connected with external display port 2, and the movable type pours an inside of mold 1
It is fixedly connected with convex item 30 on wall, pressure sensor 3 is covered on the convex item 30, the movable type pours the one of mold 1
End is inserted into incubator 5 by port 29, and the movable type in the incubator 5 pours 1 two sides of mold equipped with thermocouple 4, institute
The top and bottom end for stating thermocouple 4 are fixedly connected with the inner top surface of incubator 5 and inner bottom surface respectively, the bottom end of the incubator 5
Two sides are symmetrically fixedly connected there are two bellows 6, are fixedly installed with electric fan 7 in the bellows 6, on the bottom wall of the incubator 5
Equipped with cavity 10, the cavity 10 and bellows 6 be connected tos by several first through hole 9, the cavity 10 pass through several second
It is connected to inside through-hole 11 and incubator 5, the two sides of the incubator 5 are fixedly connected to fixed block 14, on the fixed block 14
It is threaded with the first bolt 15, slide bar 23 is slidably connected in the fixed block 14,23 bottom end of slide bar passes through fixed block
14 bottom surface is fixedly connected with block 13, and two 23 tops of slide bar both pass through 14 top surface of fixed block and are fixedly connected with same first
Scraper plate 24, for first scraper plate 24 between two slide bars 23, the side of first scraper plate 24 and movable type pour 1 side of mold
Wall fitting, the top surface of first scraper plate 24 are equipped with the second T-type sliding slot 25, slidably connect in the second T-type sliding slot 25
Second T-type sliding block 27, the top of the second T-type sliding block 27 are pierced by the second T-type sliding slot 25 and are fixedly connected with the second scraper plate 28, institute
It states the second scraper plate 28 to be bonded with 24 top surface of the first scraper plate, the one side wall of the incubator 5 is externally provided with the first T-type sliding slot 12, described
The first T-type sliding slot 12 is slidably connected in first T-type sliding slot 12, one end of the first T-type sliding slot 12 is pierced by the first T-type sliding slot
12 are fixedly connected with motor 19, are fixedly connected between two motors 19 by connecting plate 17, the connecting plate 17 is equipped with multiple
Second bolt 18 is simultaneously threadedly coupled with it, and the output end of the motor 19 is fixedly connected with swingle 20, on the swingle 20
Set is there are three sleeve 22 and is firmly connected with it, sponge block 21 is cased on the sleeve 22 and is firmly connected with it, several
Sponge block 21 is between the first scraper plate 24 and incubator 5.
The sponge block 21 is rectangular blocks.
The electric fan 7 is controlled by external control device jointly with thermocouple 4.
It is wrapped with insulation film outside the incubator 5, inside accompanies froth bed.
The movable type, which pours mold 1 and connect external information processing system with convex item 30, to be analyzed.
The width of first scraper plate 24 is less than 28 width 3-5 ㎝ of the second scraper plate.
When sponge block 21 is horizontal, the bottom surface of sponge block 21 pours 1 side wall top surface of mold with movable type and is not bonded, and works as sponge
When block 21 is vertical, the bottom surface of sponge block 21 pours 1 side wall top surface of mold, 2 ㎝ -3 ㎝ lower than movable type, when rotation, sponge block 21 with
Movable type pours 1 side wall top surface of mold and fits closely.
It is about the 0.7V-0.8V that movable type pours 1 volume of mold that the movable type, which pours the cement amount being added in mold 1,
Wherein V is that movable type pours 1 volume of mold.
When in use, mobile pour the 4/5 of 1 volume of mold outside incubator 5.
Working principle: in the use of the present invention, first connecting motor 19 and extraneous power supply, then its cement slurry is poured
It is poured in mold 1 to movable type, after the completion of pouring, by pushing hand handle 26 to push it into incubator 5, in the process of push-in
In, movable type pours 1 top surface of mold and is close to 24 bottom surface of the first scraper plate, can will effectively pour extra cement and hang, avoid
Extra cement adheres on 5 inner sidewall of incubator, and next time pours mold 1 using meeting movable type and clung with incubator 5 by cement, then
The secondary movable type pulled out in incubator 5 pours mold 1 can be extremely difficult, so being poured extra water by the first scraper plate 24
Mud is hung, and it is smooth to be effectively guaranteed the next time convenience that uses, opens simultaneously the running of motor 19, drives fixed on swingle 20 connect
The sleeve 22 connect rotates, so that the side wall top surface that the rotation of sponge block 21 pours mold 1 to movable type generates wiping, further
It will be sticked to and mobile pour the cement on 1 side wall of mold and wipe out, it is ensured that the movable type for entering incubator 5 pours 1 side of mold
Wall keeps clean, does not have cement sand influence movable type and pours sliding of the mold 1 in incubator 5, when movable type pours mold 1
After being pushed into incubator 5, the first T-type sliding block 16 in the first T-type sliding slot 12 is then slided, and then drives the second scraper plate 28 patch
24 1 Slideslip of the first scraper plate is closed, the cement being stained on the first scraper plate 24 is hung, avoids doing being difficult to clean above, then again
The switch of thermocouple 4 and electric fan 7 is opened, internal cement is dried, the gas for drying generation passes through 8 row of venthole
Out, the drying situation of internal cement is sensed by the pressure sensor 3 on convex item 30, then is passed to external information processing system
It is analyzed in system, after the completion of working, turns the second bolt 18, its motor 19 is slided on incubator 5, drive rotation
Sponge block 21 and sleeve 22 on bar 20 are moved on 5 one side of incubator, then are fixed by the second bolt 18, same to twist
Dynamic first bolt 15, the slide bar 23 being fixed in block 14 slide, and then the first scraper plate 24 is driven to be bonded again with 5 side wall of incubator
It fixes so that it is convenient to which device placement, effectively reduces space occupied, while also avoiding scratching.
Embodiment 2:
The present invention by the installation connection of Fig. 1 structure in use, finished, specific measuring process is as follows:
Common high-strength cement slurry body preparation: PO52.5 cement is mixed according to a certain percentage with water, specific volume
According to following shown:
1. cementitious material: PO52.5 cement
2. the ratio of mud: 0.24
3. additive: 1.5% high efficiency water reducing agent
The detecting step is as follows:
(1) slurry prepared is poured into movable type to pour in mold 1, starts control switch, open thermocouple 4, and control
Temperature is 20 DEG C, opens two bellows 6, and maintain 180 rpm of speed.
(2) device is statically placed at horizontal drying, it is by external information processing system that the data during test are automatic
It saves, and the analysis chart of raw each parameter.
(3) device is cleared up in time after the test, and closes power supply.
It is whether accurate for detection present apparatus measurement rule, high-strength cement slurry is prepared using identical material mixture ratio in laboratory
Body, and it is tested according to " highway engineering cement and cement concrete testing regulations ", discovery experimental rules are identical, but this
Device is higher than conventional method due to high sensitivity, precision.
Embodiment 3:
Nano-meter SiO_22The preparation of high-strength cement slurry: by a certain amount of Nano-meter SiO_22Height is incorporated into High Strength Cement-Based Materials, into
Row is mixed, and specific volume is according to following shown:
1. cementitious material: 1% Nano-meter SiO_22;99%PO52.5 cement
2. the ratio of mud: 0.24
3. additive: 1.5% high efficiency water reducing agent
The detecting step of the present embodiment is the same as embodiment 2.
It is whether accurate for detection present apparatus measurement rule, high-strength cement slurry is prepared using identical material mixture ratio in laboratory
Body, and it is tested according to " highway engineering cement and cement concrete testing regulations ", discovery experimental rules are identical, but this
Device is higher than conventional method due to high sensitivity, precision.
Embodiment 4:
The preparation of silicon ash high-strength cement slurry: a certain amount of silicon ash height is incorporated into High Strength Cement-Based Materials, is carried out mixing and is stirred
It mixes, specific volume is according to following shown:
1. cementitious material: 8% silicon ash;92%PO52.5 cement
2. the ratio of mud: 0.24
3. additive: 1.5% high efficiency water reducing agent
The detecting step of the present embodiment is the same as embodiment 2.
It is whether accurate for detection present apparatus measurement rule, high-strength cement slurry is prepared using identical material mixture ratio in laboratory
Body, and it is tested according to " highway engineering cement and cement concrete testing regulations ", discovery experimental rules are identical, but this
Device is higher than conventional method due to high sensitivity, precision.
Embodiment 5:
The preparation of flyash, silicon ash high-strength cement slurry: a certain amount of flyash and silicon ash height are incorporated into high-strength cement substrate
It in material, is mixed, specific volume is according to following shown:
1. cementitious material: 8% silicon ash;20% flyash;92%PO52.5 cement
2. the ratio of mud: 0.24
3. additive: 1.5% high efficiency water reducing agent
The detecting step of the present embodiment is the same as embodiment 2.
It is whether accurate for detection present apparatus measurement rule, high-strength cement slurry is prepared using identical material mixture ratio in laboratory
Body, and it is tested according to " highway engineering cement and cement concrete testing regulations ", discovery experimental rules are identical, but this
Device is higher than conventional method due to high sensitivity, precision.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (8)
1. one kind is for detecting cement slurry self-constriction device, which is characterized in that including pouring mechanism, sliding equipment, connection machine
Structure, test macro and heat-insulation system, the mechanism that pours includes that movable type pours mold, cavity, two scraper plates, sleeve and sponge
Block；The sliding equipment includes two T-type sliding slots, two T-type sliding blocks and slide bar；The bindiny mechanism includes fixed block, two
Bolt, connecting plate and swingle；The test macro includes pressure sensor and convex item；The heat-insulation system includes heat preservation
Case, thermocouple, bellows and port；
The top surface two sides that movable type pours mold are symmetrically fixed with hand handle, and movable type pours to be fixedly connected on one inner sidewall of mold
Several pressure sensors are distributed on the convex item in convex item, and movable type pours the ambilateral one end of mould and passes through port respectively
It is inserted into incubator, the movable type in incubator pours mold two sides and is equipped with thermocouple, the top of the thermocouple
It is fixedly connected respectively with the inner top surface of incubator and inner bottom surface with bottom end, the two sides of incubator bottom end are symmetrically fixed with bellows, institute
The bottom wall for stating incubator is equipped with cavity, and the cavity is connected to bellows by several first through hole, the cavity and heat preservation
It is connected to inside case by several second through-holes；The heat preservation box outer wall two sides are symmetrically arranged with fixed block, spiral shell on the fixed block
Line is connected with the first bolt, and slide bar is slidably connected in the fixed block, and the bottom surface that the slide bar bottom end passes through fixed block is fixed
It is connected with block, two top end of sliding rod both pass through fixed block top surface and are fixedly connected with the first scraper plate, and first scraper plate is located at two
Between slide bar, first scraper plate side pours mould side wall with movable type and is bonded, and described first scrapes plate top surface equipped with the 2nd T
Type sliding slot slidably connects the second T-type sliding block in the second T-type sliding slot, and the top of the second T-type sliding block is pierced by the 2nd T
Type sliding slot is fixedly connected with the second scraper plate, and second scraper plate is scraped plate top surface with first and is bonded；It is right outside the incubator one side wall
Claim to be equipped with the first T-type sliding slot, slidably connects the first T-type sliding slot in the first T-type sliding slot, the one of the first T-type sliding slot
End is pierced by the first T-type sliding slot and is fixedly connected with motor, is fixedly connected between two motors by connecting plate, is set on the connecting plate
There are several second bolts and be connected through a screw thread with it, the output end of each motor is fixedly connected with swingle, described
Set there are three sleeve and is firmly connected with it, sponge block is cased on the sleeve and is firmly connected with it on swingle, several
A sponge block is between the first scraper plate and incubator.
2. according to claim 1 a kind of for detecting cement slurry self-constriction device, it is characterised in that: described first scrapes
The width of plate scrapes board width 3-5 ㎝ less than second.
3. according to claim 1 a kind of for detecting cement slurry self-constriction device, it is characterised in that: the electric fan
It is separately connected external switch with thermocouple, electric fan is controlled by external switch jointly with thermocouple.
4. according to claim 1 a kind of for detecting cement slurry self-constriction device, it is characterised in that: be located at two hands
Movable type between pours die top and is fixed with external display port, also has external display port on convex item.
5. according to claim 1 a kind of for detecting cement slurry self-constriction device, it is characterised in that: the incubator
Outside is enclosed with insulation film, and inside accompanies froth bed.
6. according to claim 1 a kind of for detecting cement slurry self-constriction device, it is characterised in that: the motor connects
Connect extraneous power supply.
7. a kind of as described in claim 1 for detecting the test method of cement slurry self-constriction device, which is characterized in that packet
Include following steps:
(1) it prepares high-strength cement slurry, opens motor, newly will mix high-strength cement slurry and pour into movable type and pour in mold, go forward side by side
Row slightly vibrates, until surface is emerged without air pocket；
(2) after the completion of pouring, motor is closed, as pushing hand handle that cement slurry obtained by step (1) is pushed into incubator, benefit
Extra cement slurry is struck off with the second scraper plate with the first scraper plate, and with the extra slurry outside wet towel erasing apparatus；
(3) motor is opened, the sleeve rotating being fixedly connected on swingle is driven by motor, so that sponge block rotates, it is right
The side wall top surface that movable type pours mold generates wiping, will further be sticked to the mobile cement poured on mould side wall and wipes
Fall, it is ensured that the movable type for entering incubator pours mould side wall and keeps clean；
(4) after movable type, which pours mold, to be pushed into incubator, the first T-type sliding block in the first T-type sliding slot, and then band are slided
Dynamic second scraper plate is bonded one Slideslip of the first scraper plate, and the cement being stained on the first scraper plate is hung；
(5) it will be used to detect cement slurry self-constriction device to be put at horizontal drying, and by adjusting thermocouple and two bellows
Change movable type and pours temperature and wind speed in mold；
(6) the drying shrinkage change value of pressure of test specimen each age is recorded by the pressure sensor being covered on convex item.
8. test method according to claim 7, it is characterised in that: after the completion of test job, turn the second bolt,
Its motor is slided on incubator, drives sponge block and sleeve on swingle to be moved on incubator one side, then pass through
Second bolt is fixed, and equally turns the first bolt, the sliding bar being fixed in block, and then drives the first scraper plate and protect
The fitting of incubator side wall is fixed again.
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