CN106153673A - A kind of method of C3A activity in qualitative detection grog - Google Patents
A kind of method of C3A activity in qualitative detection grog Download PDFInfo
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- CN106153673A CN106153673A CN201610529815.8A CN201610529815A CN106153673A CN 106153673 A CN106153673 A CN 106153673A CN 201610529815 A CN201610529815 A CN 201610529815A CN 106153673 A CN106153673 A CN 106153673A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000000694 effects Effects 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 35
- 239000000843 powder Substances 0.000 claims description 21
- 229920002472 Starch Polymers 0.000 claims description 15
- 235000019698 starch Nutrition 0.000 claims description 15
- 239000008107 starch Substances 0.000 claims description 15
- 238000007667 floating Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 238000011068 loading method Methods 0.000 claims description 7
- 239000004568 cement Substances 0.000 abstract description 15
- 230000036571 hydration Effects 0.000 abstract description 5
- 238000006703 hydration reaction Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001566 impedance spectroscopy Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- 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
-
- 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
-
- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to cement field, be specifically related to a kind of method of C3A activity in qualitative detection grog.The present invention is according to meeting fast hydration, heat release in hydration process after C3A chance water in grog, and the activity of C3A is the highest, liberated heat is the biggest, detection grog and variations in temperature in water mixed process, the maximum temperature of clean slurry, the activity of C3A in qualitative grog after mixing with water according to grog.The detection method of the present invention is simple, and testing cost is low, and detection speed is fast, to promoting that cement applications development is significant.
Description
Technical field
The present invention relates to grog field, be specifically related to a kind of method of C3A activity in qualitative detection grog.
Background technology
C3A is the normal silicate indispensable component of clinker burning process, its activity relationship cement hydration process,
Hydrated product pattern, cement and concrete performance.In calcination process, C3A can solid solution part alkali (K20、Na2O) after, by cube
Crystallographic system converts to orthorhombic system, causes activity increase.Grog can cause cement, concrete containing the C3A that more activity is high
A series of performance degradations: early water heat-transformation is increased, chemical shrinkage increases, concrete cracking risk increases, cement and water reducer phase
Capacitive variation etc..In cement pulverizing course, volume and the form of Gypsum Fibrosum in cement are optimized, are to ensure that, improve cement
The technical way of performance.Especially for improving, cement is most important with water reducer compatibility.Optimize stone in cement
The volume of cream and the foundation of form include: the use temperature of C3A content and activity, alkali content, cement fineness and cement in grog.
Under conditions of there is no Gypsum Fibrosum, C3A in grog meet after water can rapid aquation, and be grog aquation
Hydrated minerals main in the most several hours.The method that research hydrated cementitious degree is traditional includes: aquation full-boiled process, chemical bonding water
Method, CH quantitative test method, aquation KINETIC METHOD.In recent years many new methods are occurred in that: infrared spectrum, X-ray diffraction, environment
Scanning electron microscope (ESEM), transmission electron microscope (TEM), and research method based on electric method: electrode method, Measured By Impedance Spectroscopy, resistivity
Method etc..These research methoies are since it is desired that the instrument of costliness, or can not provide the aquation of commitment and describe clearly
Problem and cannot extensively apply.
For in the detection method of C3A activity in existing detection grog, there is detection apparatus expensive, detection method multiple
The problems such as miscellaneous, detection speed is slow.And for the cement production enterprise in actual production, determine grog in the urgent need to one method easily
The activity of middle C3A.Therefore, the present invention proposes a kind of low cost, detection method simple, convenient, quick, can be according to detection knot
The activity of C3A in the most qualitative grog.
Summary of the invention
It is an object of the invention to solve above technical problem, it is provided that a kind of method of C3A activity in qualitative detection grog,
According to meeting fast hydration heat release after C3A chance water in grog, detect the clean maximum temperature starched in grog with water mixed process, qualitative
The activity of C3A in grog.
For solve the problems referred to above, the present invention by the following technical solutions:
A kind of method of C3A activity in qualitative detection grog, comprises the following steps:
(1) by chamotte crushing, grinding to 340-360m2/ kg, obtains powder；
(2) take 500g powder to add water and stir, only starched；
(3) will only starch in loading die trial, described die trial is degree of depth 40mm, pushes up internal diameter 65mm, the truncated cone of end internal diameter 75mm；
Analyzer containing bar is arranged in die trial, floating and remove unnecessary clean slurry, reduce bar and contact, so to clean slurry surface
Relief bar freely falling body sinks to only starch, and measures and record bar away from die trial when bar stops and sinking to or discharge bar 30-60s
Base plate distance h；
When h < during 5mm, increases water consumption in step (2), repeats step (2) and step (3)；Work as h > 7mm, reduces in step (2)
Water consumption, repeats step (2) and step (3)；As 5mm≤h≤7mm, record water consumption V, carry out step (4)；
(4) water taking 500g powder and V stirs, and starts stirring using mixing plant and starts timing as initial time, stirring
The temperature of clean slurry constantly measured by process infrared thermometer, records maximum temperature T；
When T<25 DEG C, C3A activity is normal, and when 25 DEG C≤T≤55 DEG C, C3A activity is high, as T>55 DEG C time, C3A activity is very
High.
Further, described step (2) and the middle stirring of step (4) are to complete in open environment；
Further, described stirring is first to stir 120s with 140rpm, then stir 120s with 285rpm.
Further, described qualitative checking method is to complete at temperature 18-22 DEG C, relative humidity >=50%；
Further, described qualitative checking method is to complete at temperature 19-21 DEG C, relative humidity >=50%.
In grog, C3A chance water will react rapidly, heat release in course of reaction.The activity of C3A is the highest, and C3A early reaction is put
Heat is the most, and liberated heat makes only to starch intensification, can judge the activity of C3A qualitatively according to clean slurry variations in temperature.
The method of C3A activity in the present invention a kind of qualitative detection grog, compared with prior art, its prominent feature and excellent
Different effect is:
Root the most of the present invention is according to meeting fast hydration heat release after C3A chance water in grog, and detection is starched in water mixed process only at grog
Maximum temperature, the activity of C3A in qualitative grog.
2. the detection method of the present invention is simple, and testing cost is low, and detection speed is fast, to promoting that cement applications development has weight
Want meaning.
Detailed description of the invention
Below by way of detailed description of the invention, the present invention is described in further detail, but this should be interpreted as the present invention
Scope be only limitted to Examples below.In the case of without departing from said method thought of the present invention, according to ordinary skill
Various replacements that knowledge and customary means are made or change, should be included in the scope of the present invention.
Embodiment 1
A kind of method of C3A activity in qualitative detection grog, room temperature 20 DEG C, relative humidity 50%:
(1) grog A is crushed to particle diameter and is less than 7mm, then by grinding to 340-360m2/ kg, obtains powder；
(2) 500g powder and 137g water are first stirred 120s with 140rpm in open environment, then stir 120s with 285rpm,
To clean slurry；
(3) will only starch in loading die trial, described die trial is degree of depth 40mm, top internal diameter 65mm, the truncated cone of end internal diameter 75mm,
Join the base plate can being completely covered bottom die trial；Analyzer containing bar is arranged in die trial, floating and remove unnecessary clean slurry,
Reduce bar to contact to clean slurry surface, then allow bar freely falling body sink to only and starch, measure when bar stops and sinking to and remember
Record bar is away from die trial base plate distance h；Recording h is 6mm, records corresponding water consumption V；
(4) take 500g powder to add 137g water and stir, start stirring using mixing plant and start timing as initial time, stirring
In constantly measure the temperature of clean slurry with infrared thermometer, record maximum temperature T is 26 DEG C；
According to T=26 DEG C, the activity of C3A in grog A can be qualitatively judged higher.
Embodiment 2
A kind of method of C3A activity in qualitative detection grog, room temperature 22 DEG C, relative humidity 50%:
(1) grog B being crushed to particle diameter less than 7mm, then grinding is to 340-360m2/ kg, obtains powder；
(2) 500g powder and 143g water are first stirred 120s with 140rpm, then stir 120s with 285rpm, only starched；
(3) will only starch in loading die trial, described die trial is degree of depth 40mm, top internal diameter 65mm, the truncated cone of end internal diameter 75mm,
Join the base plate can being completely covered bottom die trial；Analyzer containing bar is arranged in die trial, floating and remove unnecessary clean slurry,
Reduce bar to contact to clean slurry surface, then allow bar freely falling body sink to only and starch, measure and record when discharging bar 30s
Bar is away from die trial base plate distance h；Recording h is 7mm, records corresponding water consumption V.
(4) take 500g powder to add 143g water and stir, start stirring using mixing plant and start timing as initial time,
Temperature in whipping process monitoring mixing plant, record maximum temperature T is 32 DEG C；
According to T=32 DEG C, the activity of C3A in grog B can be qualitatively judged higher.
Embodiment 3
A kind of method of C3A activity in qualitative detection grog, room temperature 19 DEG C, relative humidity 50%:
(1) grog C being crushed to particle diameter less than 7mm, then grinding is to 350-360m2/ kg, obtains powder；
(2) 500g powder and 122g water are first stirred 120s with 140rpm in open environment, then stir 120s with 285rpm,
To clean slurry；
(3) will only starch in loading die trial, described die trial is degree of depth 40mm, top internal diameter 65mm, the truncated cone of end internal diameter 75mm,
Join the base plate can being completely covered bottom die trial；Analyzer containing bar is arranged in die trial, floating and remove unnecessary clean slurry,
Reduce bar to contact to clean slurry surface, then allow bar freely falling body sink to only and starch, measure when bar stops and sinking to and remember
Record bar is away from die trial base plate distance h；Recording h is 5mm, records corresponding water consumption V；
(4) take 500g powder to add 131g water and stir, start stirring using mixing plant and start timing as initial time, stirring
During constantly measure the temperature of clean slurry with infrared thermometer, record maximum temperature T is 24 DEG C.
According to T=24 DEG C, the activity of C3A in grog C can be qualitatively judged normal.
Embodiment 4
A kind of method of C3A activity in qualitative detection grog, room temperature 18 DEG C, relative humidity 60%:
(1) grog D being crushed to particle diameter less than 7mm, then grinding is to 350-360m2/ kg, obtains powder；
(2) 500g powder and 124g water are first stirred 120s with 140rpm, then stir 120s with 285rpm, only starched；
(3) will only starch in loading die trial, described die trial is degree of depth 40mm, top internal diameter 65mm, the truncated cone of end internal diameter 75mm,
Join the base plate can being completely covered bottom die trial；Analyzer containing bar is arranged in die trial, floating and remove unnecessary clean slurry,
Reduce bar to contact to clean slurry surface, then allow bar freely falling body sink to only and starch, measure when bar stops and sinking to and remember
Record bar is away from die trial base plate distance h；Recording h is 6mm, records corresponding water consumption V；
(4) take 500g powder to add 124g water and stir, start stirring using mixing plant and start timing as initial time, stirring
During constantly measure the temperature of clean slurry with infrared thermometer, record maximum temperature T is 21 DEG C.
According to T=21 DEG C, the activity of C3A in grog D can be qualitatively judged normal.
Embodiment 5
A kind of method of C3A activity in qualitative detection grog, room temperature 21 DEG C, relative humidity 65%:
(1) grog E being crushed to particle diameter less than 7mm, then grinding is to 340-360m2/ kg, obtains powder；
(2) 500g powder and 145g water are first stirred 120s with 140rpm in open environment, then stir 120s with 285rpm,
To clean slurry；
(3) will only starch in loading die trial, described die trial is degree of depth 40mm, top internal diameter 65mm, the truncated cone of end internal diameter 75mm,
Join the base plate can being completely covered bottom die trial；Analyzer containing bar is arranged in die trial, floating and remove unnecessary clean slurry,
Reduce bar to contact to clean slurry surface, then allow bar freely falling body sink to only and starch, measure when bar stops and sinking to and remember
Record bar is away from die trial base plate distance h；Recording h is 7mm, records corresponding water consumption V；
(4) take 500g powder to add 130g water and stir, start stirring using mixing plant and start timing as initial time, stirring
During constantly measure the temperature of clean slurry with infrared thermometer, record maximum temperature T is 58 DEG C.
According to T=58 DEG C, the activity of C3A in grog E can be qualitatively judged the highest.
Claims (5)
1. the method for C3A activity in a qualitative detection grog, it is characterised in that comprise the following steps:
(1) by chamotte crushing, grinding to 340-360m2/ kg, obtains powder；
(2) take 500g powder to add water and stir, only starched；
(3) will only starch in loading die trial, described die trial is degree of depth 40mm, pushes up internal diameter 65mm, the truncated cone of end internal diameter 75mm；
Analyzer containing bar is arranged in die trial, floating and remove unnecessary clean slurry, reduce bar and contact, so to clean slurry surface
Relief bar freely falling body sinks to only starch, and measures and record bar away from die trial when bar stops and sinking to or discharge bar 30-60s
Base plate distance h；
When h < during 5mm, increases water consumption in step (2), repeats step (2) and step (3)；Work as h > 7mm, reduces in step (2)
Water consumption, repeats step (2) and step (3)；As 5mm≤h≤7mm, record water consumption V, carry out step (4)；
(4) water taking 500g powder and V stirs, and starts stirring using mixing plant and starts timing as initial time, stirring
The temperature of clean slurry constantly measured by process infrared thermometer, records maximum temperature T；
When T<25 DEG C, C3A activity is normal, and when 25 DEG C≤T≤55 DEG C, C3A activity is high, as T>55 DEG C time, C3A activity is very
High.
The method of C3A activity in a kind of qualitative detection grog the most according to claim 1, it is characterised in that: described step
(2) and stirring in step (4) is to complete in open environment.
The method of C3A activity in a kind of qualitative detection grog the most according to claim 2, it is characterised in that: described stirring
It is first to stir 120s with 140rpm, then stir 120s with 285rpm.
The method of C3A activity in a kind of qualitative detection grog the most according to claim 1, it is characterised in that: described method
It is to complete at temperature 18-22 DEG C, relative humidity >=50%.
The method of C3A activity in a kind of qualitative detection grog the most according to claim 1, it is characterised in that: described method
It is to complete at temperature 19-21 DEG C, relative humidity >=50%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610529815.8A CN106153673A (en) | 2016-07-07 | 2016-07-07 | A kind of method of C3A activity in qualitative detection grog |
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| CN201610529815.8A CN106153673A (en) | 2016-07-07 | 2016-07-07 | A kind of method of C3A activity in qualitative detection grog |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115677264A (en) * | 2022-12-30 | 2023-02-03 | 石家庄市长安育才建材有限公司 | Concrete admixture and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690067A (en) * | 2011-03-22 | 2012-09-26 | 株式会社Dc | Highly active cement clinker and highly active cement |
-
2016
- 2016-07-07 CN CN201610529815.8A patent/CN106153673A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690067A (en) * | 2011-03-22 | 2012-09-26 | 株式会社Dc | Highly active cement clinker and highly active cement |
Non-Patent Citations (6)
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| 中华人民共和国国家质量监督检验检疫总局: "《GB/T1346-2011中华人民共和国国家标准》", 20 July 2011 * |
| 张大康等: ""水泥的最早期水化及表征"", 《水泥》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115677264A (en) * | 2022-12-30 | 2023-02-03 | 石家庄市长安育才建材有限公司 | Concrete admixture and preparation method thereof |
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