CN110031363A - A kind of ground polymers starches material initial set, final setting time test device and test method - Google Patents
A kind of ground polymers starches material initial set, final setting time test device and test method Download PDFInfo
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- CN110031363A CN110031363A CN201910324551.6A CN201910324551A CN110031363A CN 110031363 A CN110031363 A CN 110031363A CN 201910324551 A CN201910324551 A CN 201910324551A CN 110031363 A CN110031363 A CN 110031363A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/006—Determining flow properties indirectly by measuring other parameters of the system
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Abstract
The invention discloses the initial set of a kind of ground polymers slurry material, final setting time test device and test methods, using test cup body as the experiment chamber of ground polymers slurry material, it tests cup body and passes through the fixed device of test cup, the fixed device of test cup is for fixed test cup body, pre-hardening groove and sample metal line are equipped on the outside of test cup body cup body, horizontal plane is parallel with test cup body bottom surface where sample metal line；Utilize isometric space, precise measurement is accomplished in the variation of the polymers slurry material poor fluidity opposite sex to plane where the confined space V-structure plane formed between wall in plane where pre-hardening groove and test cup body and pre-hardening groove over the ground, high sensitivity, measurement range is wide, easy to operate.The present apparatus can be used for ground polymers slurry material viscosity, the characterization of mobility and pumpable time performance simultaneously, and test device and method are simple, pre-hardening to evaluation ground polymers slurry material, final setting time to have directive significance.
Description
Technical field
The invention belongs to injecting paste material Experimental Method in Laboratory innovation areas, and in particular at the beginning of a kind of ground polymers injecting paste material
Solidifying, final setting time test device and test method.
Background technique
Due to the material composition of different ground polymers injecting paste materials, reaction mechanism etc. with cement class injecting paste material completely not
Together, the initial set in slurry material, final setting time very different.Initial set, the definition of final setting time are namely for describing inorganic gel material
Expect since adding water to lose the time of plasticity to and to the time for losing plasticity completely.It rephrases the statement, material mobility is starched after initial set
Start to gradually decrease, material is starched after final set and loses flowability completely and initially forms intensity.
It, will according to specification GB/T 1346-2011 " cement normal consistency water consumption, setting time, the stability method of inspection "
The slide bar of weight 300g acts on pre-hardening needle and final set needle sinks to slurry material designated depth, to determine whether reaching initial set or final setting time still
Initial set cannot be reached, final setting time measurement requires.Due to the material property of ground polymers slurry material, the metal bar of standard Vicat apparatus test
With test point since its weight is larger, polymers slurry material in ground has begun or completely loses mobility, but itself and not formed sufficient intensity
The slide bar of 300g and test point cannot be enabled to be parked in designated depth, but bottomed out completely, the setting time of ground polymers slurry material can not be measured.
Simultaneously for polymers slurry material as new material, the country, which does not standardize accordingly, claims to the test of its setting time, adopts mostly
Lead to the inaccuracy evaluated material property with cement class testing method, and a few methods are completely not applicable.
Therefore, it needs to propose the initial set of a kind of ground polymers slurry material, final setting time test device and test method, solves ground polymers
Starch material initial set and the missing of final setting time test method, with being unable to accurate evaluation polymers slurry material setting time the problems such as.This for
The accurate evaluation of ground polymers injecting paste material working performance is most important, while being conducive to the popularization and application of ground polymers injecting paste material.
Summary of the invention
The purpose of the present invention is to provide the initial set of a kind of ground polymers slurry material, final setting time test device and methods, to overcome
The deficiencies in the prior art.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of ground polymers starches material initial set, final setting time test device, including test cup body and the fixed device of test cup, test
The fixed device of cup tests cup body for fixed, and pre-hardening groove and sample metal line, sample liquid level are equipped on the outside of test cup body cup body
Horizontal plane is parallel with test cup body bottom surface where line；Pre-hardening groove is curvilinear along test cup body, plane where pre-hardening groove with
Testing cup body bottom surface is in 45 ° of angles, tests cup body transparent cup body；It is formed between wall in plane where pre-hardening groove and test cup body
Confined space volume V1 be equal to sample metal line where the confined space volume V2 that is formed between wall in plane and test cup body.
Further, the fixed device of test cup using support frame structure or uses fixed frame.
Further, support frame structure uses supporting block, and supporting block is equipped with the v-depression of 45 ° of angles.
Further, fixed rack structure uses rotary fixing frame, and rotary fixing frame includes horizontal bracket and is set to test
Two shafts of cup body two sides and coaxial arrangement, horizontal bracket are equipped with rotating hole, and two shafts are coaxially disposed respectively in level
In rotating hole on bracket, roller end is locked by locking nut.
Further, further include sealing cover for sealing test cup body rim of a cup.
Further, test cup body cup body is equipped with enlarging section, and amplification unit is handed in test bottom of cup and pre-hardening groove
At line.
Further, enlarging section amplification factor is not less than 20 times.
A kind of ground polymers starches material initial set, final setting time test method, comprising the following steps:
1) preparation starches material to geodetic polymers: weighing appropriate raw material, differently polymers is infused according to the preparation of experimental design match ratio
Pulp material, and record and prepare the deadline to geodetic polymers slurry material；
2) test cup is placed vertically, pours into the ground polymers prepared and starch material to sample metal line, test cup body is carried out
Sealing；
3) it is statically placed in support after test cup then being tilted 45 ° until liquid level stabilizing, completes to open from the slurry material preparation of ground polymers
Beginning timing, local polymers slurry material liquid level, which is no longer overlapped with pre-hardening groove, stops timing, i.e., slurry material starts viscosity increase forfeiture flowing
Property cause liquid level no longer horizontal, the time be then ground polymers slurry material presetting period；Then test cup is stood vertically again；
4) after entering pre-hardening state, ground polymers starches material mobility and starts to reduce, and places and props up until test cup is tilted 45 °
On seat, any flowing does not occur for ground polymers slurry material, i.e. slurry material interface is still overlapped with sample metal line, then polymers slurry material reaches eventually
Solidifying state, since the slurry material preparation of ground polymers complete to start to ground polymers slurry material not occurring any flowing this period be then polymers starch
The final setting time of material.
Further, it records ground polymers slurry material liquid level using observation whether to be overlapped with pre-hardening groove, specific observation test
Whether bottom of cup changes with the ground polymers slurry material liquid level at pre-hardening groove intersection；If ground polymers starch material liquid level not with test cup
Body bottom is overlapped with the intersection at pre-hardening groove intersection thinks that ground polymers slurry material liquid level is no longer overlapped with pre-hardening groove, stops meter
When.
Further, in step 4), in final setting time experimentation specifically includes the following steps:
Step 4.1, by test cup stand interval duration t after, by test cup from vertical state tilt angle be 5-10 degree, such as
Fruit polymers slurry material along test cup inner wall flow, then stop tilting, by test cup return vertical state stand；
Test cup after standing interval duration t, then is tilted to 5-10 degree from vertical state by step 4.2, repeats step 4.1
Until when test cup is spent from vertical state tilt angle for 5-10 polymers slurry material do not change along test cup inner wall；
Then tilt angle is directly increased to 20-30 degree by step 4.3, flow if ground polymers starches material along test cup inner wall,
Then stop tilting, test cup is returned into vertical state and is stood；
Test cup after standing interval duration t, then is tilted to 20-30 degree from vertical state by step 4.4, repeats step 4.3
Until when test cup is spent from vertical state tilt angle for 20-30 polymers slurry material do not change along test cup inner wall, then
Test cup tilt angle is increased to 45 degree, is flowed if ground polymers starches material along test cup inner wall, is stopped tilting, test cup is returned
Vertical state is returned to stand；
Test cup after standing interval duration t, then is tilted to 45 degree from vertical state by step 4.5, until by test cup from
Vertical state tilt angle be 45 degree when polymers starch material do not change along test cup inner wall, recording this final setting time node is
ti, i is that test cup tilts number；It is then t away from the inclined last inclining test timing node of final setting time nodei-1；
Step 4.6, the ground polymers matched on an equal basis slurry material is directly stood into t under equal ambienti-1Duration reduces between standing
Every duration t, repetition 4.5 is by test cup inclining test, until standing interval duration t is less than 20s, then at standing interval, duration t is small
The final setting time node of the final setting time node obtained under the test of 20s as polymers slurry material.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of ground polymers of the invention starches material initial set, final setting time test device, starches material using test cup body as ground polymers
Experiment chamber, test cup body testing cup body for fixed test cup body by the fixed device of test cup, the fixed device of test cup
Pre-hardening groove and sample metal line are equipped on the outside of cup body, horizontal plane is parallel with test cup body bottom surface where sample metal line；Initial set
Groove is curvilinear along test cup body, and pre-hardening groove place plane and test cup body bottom surface are in 45 ° of angles, puts down where pre-hardening groove
Wall in plane where the confined space volume V1 formed between wall in face and test cup body is equal to sample metal line and test cup body
Between the confined space volume V2 that is formed, using isometric space, at this time in plane where pre-hardening groove and test cup body wall it
Between the confined space V-structure plane that is formed the variation of the polymers slurry material poor fluidity opposite sex is accomplished over the ground with plane where pre-hardening groove
Precise measurement, high sensitivity, measurement range is wide, easy to operate.The present apparatus can be used for ground polymers slurry material viscosity, mobility simultaneously
And the characterization of pumpable time performance, and test device and method are simple, have to the polymers slurry material initial set of evaluation ground, final setting time
Directive significance.
Further, support frame structure uses supporting block, and supporting block is equipped with the v-depression of 45 ° of angles, and structure is simple,
Convenient for measurement.
Further, further include sealing cover for sealing test cup body rim of a cup, prevent moisture from evaporating.
Further, test cup body cup body is equipped with enlarging section, and amplification unit is handed in test bottom of cup and pre-hardening groove
At line, convenient for observation fluid change situation, reduce error.
A kind of ground polymers of the invention starches material initial set, final setting time test method, by that will weigh appropriate raw material according to examination
Design mixture proportion preparation differently polymers injecting paste material is tested, and records and prepares the deadline to geodetic polymers slurry material；By test cup
It is vertical to place, it pours into the ground polymers prepared and starches material to sample metal line, test cup body is sealed；Using in test cup
Pre-hardening groove is statically placed in support until liquid level stabilizing after test cup is tilted 45 °, starch timing material preparation is completed since ground polymers,
Local polymers slurry material liquid level, which is no longer overlapped with pre-hardening groove, stops timing, i.e., slurry material, which starts viscosity increase lost flowability, leads to liquid
Face is no longer horizontal, which is then the presetting period of ground polymers slurry material；Measurement method is simple, and measurement result is accurate；Ground is gathered
Object starches the final setting time measurement of material, places until test cup is tilted 45 ° on support, any stream does not occur for ground polymers slurry material
Dynamic, i.e. slurry material interface is still overlapped with sample metal line, then polymers slurry material reaches final set state, is completed from the slurry material preparation of ground polymers
Start that the final setting time that any flowing this period is then ground polymers slurry material does not occur to ground polymers slurry material, it is only necessary to primary real
It tests, presetting period and the final setting time of ground polymers slurry material can be obtained, substantially increase ground polymers slurry material initial set, final setting time is surveyed
Try efficiency.
Further, interval duration t is stood by reducing repeatedly, inclination different angle is carried out to test cup, observation place is poly-
Object starches the mobility of material, increases the accuracy of measurement result.
Detailed description of the invention
Fig. 1 is the overall structure figure that ground polymers starches material initial set, final setting time test device.
Fig. 2 is that ground polymers starches material presetting period test schematic diagram.
Fig. 3 is that ground polymers starches material final setting time test schematic diagram.
Fig. 4 is that structural schematic diagram is fixedly mounted in test cup of the present invention.
Fig. 5 is Fig. 4 side view.
Wherein, 1, test cup body；2, sample metal line；3, pre-hardening groove；4, the fixed device of test cup；5, polymers is starched
Material；6, enlarging section；7, shaft；8, horizontal bracket；9, locking nut.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figure 1 to Figure 3, the initial set of a kind of ground polymers slurry material, final setting time test device, including test cup body 1 and survey
Test glass fixes device 4, and the fixed device 4 of test cup tests cup body 1 for fixed, pre-hardening groove 3 is equipped on the outside of test 1 cup body of cup body
With sample metal line 2,2 place horizontal plane of sample metal line with test 1 bottom surface of cup body it is parallel；Pre-hardening groove 3 along test cup body 1 be in
Curve-like, pre-hardening 3 place plane of groove and test 1 bottom surface of cup body are in 45 ° of angles, test the transparent cup body of cup body 1；Pre-hardening groove 3
The confined space volume V1 formed between place plane and test 1 inner wall of cup body is equal to 2 place plane of sample metal line and test
The confined space volume V2 formed between 1 inner wall of cup body；It tests 1 cup body of cup body and is equipped with enlarging section 6, enlarging section 6 is located at test
At 3 intersection of 1 bottom of cup body and pre-hardening groove, for amplifying pre-hardening 3 metal line of groove；6 amplification factor of enlarging section is not less than 20 times；
Further include the sealing cover for 1 rim of a cup of sealing test cup body, prevents the water loss in test cup body 1；
The fixed device 4 of test cup is using support frame structure or uses fixed frame, specific support frame structure such as Fig. 2 institute
Show, using supporting block, supporting block is equipped with the v-depression of 45 ° of angles, for placing test cup body 1；
As shown in Figure 4, Figure 5, specific fixed rack structure uses rotary fixing frame, and rotary fixing frame includes 8 He of horizontal bracket
Two shafts 7 of test 1 two sides of cup body and coaxial arrangement are set to, horizontal bracket 8 is equipped with rotating hole, and two shafts 7 are distinguished
It is coaxially disposed in the rotating hole on horizontal bracket 8,7 end of shaft is locked by locking nut 9；Shaft 7 is multi-diameter shaft, ladder
The big axial end and 8 inside face contact of horizontal bracket of axis；By rotating locking nut 9, reduce between shaft 7 and horizontal bracket 8
Pressure, test cup body 1 can be rotated by shaft, rotation locking nut 9 increases the pressure between shaft 7 and horizontal bracket 8,
It can prevent 7 relative level bracket 8 of shaft from rotating.
In the embodiment of the present application, use test cup for transparent organic material or glass material, top internal diameter 80mm, in bottom
Diameter 60mm, high 60mm.
Sample metal line and pre-hardening groove are engraved on test outer cup wall, sample metal line, also known as final set groove, sample metal line
For the horizontal groove away from bottom 25mm, pre-hardening groove is the groove with horizontal line in 45 ° of angles；
Supporting block is equipped with groove, test cup can be tilted to 45 ° of placements, while can flow shape by liquid level from side
Condition, when test cup is put into support, the pre-hardening groove of test cup is consistent with holder top height, can help to judge liquid level whether water
It is flat.
Sample metal line slurry material volume below when test cup is placed vertically, with test cup tilt 45 ° when initial set groove with
Under slurry material volume it is equal.
A kind of ground polymers starches material initial set, final setting time test method, comprising the following steps:
1) preparation starches material to geodetic polymers: weighing appropriate raw material, differently polymers is infused according to the preparation of experimental design match ratio
Pulp material, and record and prepare the deadline to geodetic polymers slurry material；
2) test cup is placed vertically, pours into the ground polymers prepared and starch material to sample metal line, test cup body is carried out
Sealing；
3) it is statically placed in support after test cup then being tilted 45 ° until liquid level stabilizing, completes to open from the slurry material preparation of ground polymers
Beginning timing, local polymers slurry material liquid level, which is no longer overlapped with pre-hardening groove, stops timing, i.e., slurry material starts viscosity increase forfeiture flowing
Property cause liquid level no longer horizontal, the time be then ground polymers slurry material presetting period；Then test cup is stood vertically again；
Whether it is overlapped specifically, recording ground polymers slurry material liquid level using observation with pre-hardening groove, specifically observes test cup
Whether body bottom changes with the ground polymers slurry material liquid level at pre-hardening groove intersection；If ground polymers starch material liquid level not with test cup body
Bottom is overlapped with the intersection at pre-hardening groove intersection thinks that ground polymers slurry material liquid level is no longer overlapped with pre-hardening groove, stops meter
When；
4) after entering pre-hardening state, ground polymers starches material mobility and starts to reduce, and places and props up until test cup is tilted 45 °
On seat, any flowing does not occur for ground polymers slurry material, i.e. slurry material interface is still overlapped with sample metal line, then polymers slurry material reaches eventually
Solidifying state, since the slurry material preparation of ground polymers complete to start to ground polymers slurry material not occurring any flowing this period be then polymers starch
The final setting time of material.
In step 4), in final setting time experimentation specifically includes the following steps:
Step 4.1, by test cup stand interval duration t after, by test cup from vertical state tilt angle be 5-10 degree, such as
Fruit polymers slurry material along test cup inner wall flow, then stop tilting, by test cup return vertical state stand；
Test cup after standing interval duration t, then is tilted to 5-10 degree from vertical state by step 4.2, repeats step 4.1
Until when test cup is spent from vertical state tilt angle for 5-10 polymers slurry material do not change along test cup inner wall；
Then tilt angle is directly increased to 20-30 degree by step 4.3, flow if ground polymers starches material along test cup inner wall,
Then stop tilting, test cup is returned into vertical state and is stood；
Test cup after standing interval duration t, then is tilted to 20-30 degree from vertical state by step 4.4, repeats step 4.3
Until when test cup is spent from vertical state tilt angle for 20-30 polymers slurry material do not change along test cup inner wall, then
Test cup tilt angle is increased to 45 degree, is flowed if ground polymers starches material along test cup inner wall, is stopped tilting, test cup is returned
Vertical state is returned to stand；
Test cup after standing interval duration t, then is tilted to 45 degree from vertical state by step 4.5, until by test cup from
Vertical state tilt angle be 45 degree when polymers starch material do not change along test cup inner wall, recording this final setting time node is
ti, i is that test cup tilts number；It is then t away from the inclined last inclining test timing node of final setting time nodei-1。
Under equal ambient, the ground polymers matched on an equal basis slurry material is directly stood into ti-1Duration reduces inclination interval time t,
4.5 are repeated by test cup inclining test, until inclination interval time t is less than 20s, is then less than the survey of 20s in inclination interval time t
The final setting time node of the final setting time node obtained under examination as polymers slurry material.
Claims (10)
1. a kind of ground polymers starches material initial set, final setting time test device, which is characterized in that including test cup body (1) and test cup
Fixed device (4), test cup fixed device (4) test cup body (1) for fixed, are equipped with initial set on the outside of test cup body (1) cup body
Groove (3) and sample metal line (2), horizontal plane is parallel with test cup body (1) bottom surface where sample metal line (2)；Pre-hardening groove
(3) curvilinear along test cup body (1), plane where pre-hardening groove (3) and test cup body (1) bottom surface are in 45 ° of angles, test cup
Body (1) transparent cup body；The confined space volume V1 etc. formed between plane where pre-hardening groove (3) and test cup body (1) inner wall
The confined space volume V2 formed between plane and test cup body (1) inner wall where sample metal line (2).
2. a kind of ground polymers slurry material initial set according to claim 1, final setting time test device, which is characterized in that test
Cup fixed device (4) is using support frame structure or uses fixed frame.
3. a kind of ground polymers slurry material initial set according to claim 2, final setting time test device, which is characterized in that support
Frame structure uses supporting block, and supporting block is equipped with the v-depression of 45 ° of angles.
4. a kind of ground polymers slurry material initial set according to claim 2, final setting time test device, which is characterized in that fixed
Frame structure uses rotary fixing frame, and rotary fixing frame includes horizontal bracket (8) and is set to test cup body (1) two sides and coaxially sets
Two shafts (7) set, horizontal bracket (8) are equipped with rotating hole, and two shafts (7) are coaxially disposed respectively in horizontal bracket (8)
On rotating hole in, shaft (7) end pass through locking nut (9) lock.
5. a kind of ground polymers slurry material initial set according to claim 1, final setting time test device, which is characterized in that also wrap
Include the sealing cover for sealing test cup body (1) rim of a cup.
6. a kind of ground polymers slurry material initial set according to claim 1, final setting time test device, which is characterized in that test
Cup body (1) cup body is equipped with enlarging section (6), and enlarging section (6) are located at test cup body (1) bottom and pre-hardening groove (3) intersection.
7. a kind of ground polymers slurry material initial set according to claim 6, final setting time test device, which is characterized in that amplification
Portion's (6) amplification factor is not less than 20 times.
8. a kind of a kind of ground polymers slurry material initial set based on test device described in claim 1, final setting time test method, special
Sign is, comprising the following steps:
1) appropriate raw material are weighed and prepare differently polymers injecting paste material according to experimental design match ratio, and are recorded to geodetic polymers
It starches material and prepares the deadline；
2) test cup is placed vertically, pours into the ground polymers prepared and starch material to sample metal line, test cup body is sealed；
3) it is statically placed in support after test cup then being tilted 45 ° until liquid level stabilizing, is counted since being completed polymers slurry material preparation in ground
When, local polymers slurry material liquid level, which is no longer overlapped with pre-hardening groove, stops timing, i.e. slurry material starts viscosity increase lost flowability and leads
Cause liquid level no longer horizontal, which is then the presetting period of ground polymers slurry material；Then test cup is stood vertically again；
4) after entering pre-hardening state, polymers slurry material mobility in ground starts to reduce, and places and support until test cup is tilted 45 °
On, any flowing does not occur for ground polymers slurry material, i.e. slurry material interface is still overlapped with sample metal line, then polymers slurry material reaches final set
State, since ground polymers slurry material preparation complete start to ground polymers slurry material do not occur any flowing this period be then polymers starch material
Final setting time.
9. a kind of ground polymers slurry material initial set according to claim 8, final setting time test method, which is characterized in that use
Whether observation record ground polymers slurry material liquid level is overlapped with pre-hardening groove, specific observation test bottom of cup and pre-hardening groove intersection
Whether the ground polymers slurry material liquid level at place changes；If ground polymers starches material liquid level not and at test bottom of cup and pre-hardening groove intersection
Intersection be overlapped i.e. think ground polymers slurry material liquid level is no longer overlapped with pre-hardening groove, stopping timing.
10. a kind of ground polymers slurry material initial set according to claim 8, final setting time test method, which is characterized in that step
4) in, in final setting time experimentation specifically includes the following steps:
Step 4.1, by test cup stand interval duration t after, by test cup from vertical state tilt angle be 5-10 degree, if ground
Polymers is starched material and is flowed along test cup inner wall, then stops tilting, and test cup is returned to vertical state and is stood；
Test cup after standing interval duration t, then is tilted to 5-10 degree from vertical state by step 4.2, repeat step 4.1 until
When test cup is spent from vertical state tilt angle for 5-10 polymers slurry material do not change along test cup inner wall；
Then tilt angle is directly increased to 20-30 degree by step 4.3, flow, stop along test cup inner wall if ground polymers starches material
It only tilts, test cup is returned into vertical state and is stood；
Test cup after standing interval duration t, then is tilted to 20-30 degree from vertical state by step 4.4, repeat step 4.3 until
When test cup is spent from vertical state tilt angle for 20-30 polymers slurry material do not change along test cup inner wall, then will survey
Test glass tilt angle increases to 45 degree, flows if ground polymers starches material along test cup inner wall, stops tilting, and test cup is returned perpendicular
Straight state is stood；
Test cup after standing interval duration t, then is tilted to 45 degree from vertical state by step 4.5, until by test cup from vertical
State tilt angle be 45 degree when polymers starch material do not change along test cup inner wall, record this final setting time node be ti, i
Number is tilted for test cup；It is then t away from the inclined last inclining test timing node of final setting time nodei-1；
Step 4.6, the ground polymers matched on an equal basis slurry material is directly stood into t under equal ambienti-1Duration, when reducing standing interval
Long t repeats 4.5 and test cup inclining test is then being stood interval duration t less than 20s until standing interval duration t is less than 20s
Test under obtained final setting time node as polymers slurry material final setting time node.
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