CN103822843B - The detection device of a kind of cement dusting performance and detection method - Google Patents
The detection device of a kind of cement dusting performance and detection method Download PDFInfo
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- CN103822843B CN103822843B CN201410059030.XA CN201410059030A CN103822843B CN 103822843 B CN103822843 B CN 103822843B CN 201410059030 A CN201410059030 A CN 201410059030A CN 103822843 B CN103822843 B CN 103822843B
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Abstract
The invention discloses detection device and the detection method of a kind of cement dusting performance.The detection device of a kind of cement dusting performance, including base, sand box, column, sand bucket, test specimen link plate and detection die trial；Sand box is mounted at above base, and uprights vertical is fixedly installed in above base；Sand bucket and test specimen link plate are connected with column by hanger, and can move up and down on column as required；Sand bucket lower end has a sand export, and keeps point-blank with test specimen link plate and the sand box of lower section；Detection die trial, for molding cement to be detected, is fixed on during detection on test specimen link plate.The invention provides a kind of detection device and detection method, blank that filling concrete industry cement dusting performance still can not characterize that quantitative data reliable, objective can be provided for evaluating cement dusting performance.
Description
Technical field
The invention belongs to building material technical field, be specifically related to detection device and the detection side of a kind of cement dusting performance
Method.
Background technology
Cement Floor Dusting is one of most cement quality problem of customer complaint, easily causes that user's is discontented, and
Suspection to construction quality, has considerable influence to engineering delivery, often causes the disagreement of manufacture of cement producer and user, and then
Affect the sale of manufacture of cement producer cement.But the research the most not system to cement dusting at present, in the country of cement products
In standard, do not control index and the requirement of cement dusting, neither one reliable cement dusting performance detection apparatus and can yet
The cement dusting method for testing performance of row.From qualitative it is believed that: cement mortar surface strength is the highest, dusting performance is the best,
More it is difficult to dusting；Cement mortar surface strength is the lowest, the dusting the poorest, the easiest of dusting performance.Currently there are no unit and
Cement dusting performance can be characterized by method reliably, it is impossible to the evaluation for cement dusting performance provides reliably, objectively determines
Amount data.It is then desired to develop a kind of new detection device that disclosure satisfy that above-mentioned needs and related detecting method.
Summary of the invention
It is an object of the invention to provide a kind of inspection that quantitative data reliable, objective can be provided for evaluating cement dusting performance
Survey device and detection method, the blank that filling concrete industry cement dusting performance still can not characterize.
For achieving the above object, the technical solution used in the present invention is:
The detection device of a kind of cement dusting performance, including base, sand box, column, sand bucket, test specimen link plate and detection examination
Mould；
Described sand box is mounted at above base, and uprights vertical is fixedly installed in above base；
Described sand bucket and test specimen link plate are connected with column by hanger, and can move up and down on column as required；
Described sand bucket lower end has a sand export, and keeps point-blank with test specimen link plate and the sand box of lower section；
Described detection die trial is used for molding cement to be detected, is fixed on test specimen link plate during detection.
By such scheme, described column is fixedly mounted on base by flange and screw.
By such scheme, it is also equipped with the mouth that shakes out inside the sand export of described sand bucket lower end, and the mouth that shakes out is by outside sand
Mouth pressure ring is fixed.
By such scheme, described test specimen link plate is provided with locating ring for fixed test die trial.
Utilize the cement dusting method for testing performance of above-mentioned cement dusting device for detecting performance, comprise the following steps:
1) add detection die trial after cement to be detected, water, sand being stirred in blender, be then put in cement mortar
Beating 25 times on the electronic jumping table that fluidity measures, surface ruler strikes off, each molding 9；
2) initial mass of band mould cement briquette is weighed after maintenance 24h；
3) band mould cement briquette being fixed on test specimen link plate, the sand weighing 500g pours sand bucket into, utilizes from sand export
The souring of band mould cement briquette is measured by the sand of free-falling, ensure sand export, band mould cement briquette and
Test specimen link plate, in the case of straight line, moves in the middle of hanger and two ends by sand bucket successively, in each test block side by side
Three positions wash away 1 time respectively；
4) again weigh, the dusting amount as this cement sample of poor quality of the front and back belt that is washed mould cement briquette.
Beneficial effects of the present invention:
A kind of detection device and detection that can provide quantitative data reliable, objective for evaluating cement dusting performance is provided
Method, the blank that filling concrete industry cement dusting performance still can not characterize.
Accompanying drawing explanation
Fig. 1: cement dusting device for detecting performance diagram；
Fig. 2: detection die trial diagram；
Wherein, 1-base；2-sand box；3-locating ring；4-test specimen link plate；5-shakes out mouth；6-sand mouth pressure ring；7-sand export；
8-sand bucket；9-column；10-hanger；11-flange；12-detects die trial.
Detailed description of the invention
Explain technical scheme below in conjunction with drawings and Examples further, but protect model not as to the present invention
The restriction enclosed.
Referring to the drawings shown in 1,2, the detection device of cement dusting performance, including base 1, sand box 2, column 9, sand bucket 8, examination
Part link plate 4 and detection die trial 12；Described sand box 2 is mounted at above base 1, and column 9 is vertically fixedly installed in base 1
Top；Described sand bucket 8 and test specimen link plate 4 are connected with column 9 by hanger 10, and can move up and down on column 9 as required；
Described sand bucket 8 lower end has a sand export 7, and keeps point-blank with test specimen link plate 4 and the sand box 2 of lower section；Described detection
Die trial 12, for molding cement to be detected, is fixed on during detection on test specimen link plate 4.
Referring to the drawings 1, column 9 is fixedly mounted on base 1 by flange 11 and screw.
Referring to the drawings 1, the internal mouth 5 that shakes out that is also equipped with of the sand export 7 of sand bucket 8 lower end, and the mouth 5 that shakes out is by outside sand mouth
Pressure ring 6 is fixing in order to regulate the flow that control sand bucket shakes out.
Referring to the drawings 1,2, test specimen link plate 4 is provided with locating ring 3 for fixed test die trial 12.
Utilize the cement dusting method for testing performance of above-mentioned cement dusting device for detecting performance, comprise the following steps:
1) add detection die trial after cement to be detected, water, sand being stirred in blender, be then put in cement mortar
Beating 25 times on the electronic jumping table that fluidity measures, surface ruler strikes off, 9 band mould cement briquettes of each molding；
2) initial mass of band mould cement briquette is weighed after maintenance 24h；
3) band mould cement briquette being fixed on test specimen link plate, the sand weighing 500g pours sand bucket into, utilizes from sand export
The souring of band mould cement briquette is measured by the sand of free-falling, ensure sand export, band mould cement briquette and
Test specimen link plate, in the case of straight line, moves in the middle of hanger and two ends by sand bucket successively, in each test block side by side
Three positions wash away 1 time respectively；
4) again weigh, the dusting amount as this cement sample of poor quality of the front and back belt that is washed mould cement briquette.
Embodiment
1,32.5 composite Portland cement 150g, water 180g, sand 900g that Cement Co., Ltd of Wuhan steel China produces are weighed,
After being stirred in blender, add in detection die trial, be then put on the electronic jumping table that flow of cement mortar measures
Beating 25 times, surface ruler strikes off, each molding 9.
2, the band mould test block after molding is placed in vacuum curing box carries out maintenance.The joined vacuum pump of vacuum drying oven is for taking out
Speed is the 2XZ-1 type rotary-vane vaccum pump of 1 liter/second, and curing temperature is set as 50 DEG C, test block first maintenance under-0.03MPa
4.5h, then evacuation 10min, vacuum meter reading is about-0.098Mpa, always maintenance 24h.Take out test block, wipe detection
The cement mortar attached outside die trial, weighs the initial mass of each band mould test block.
3, band mould test block being put in the locating ring of detection device, then block the mouth that shakes out, the sand weighing 500g pours sand into
Bucket, decontrols the mouth that shakes out, and utilizes the sand from mouth free-falling of shaking out to be measured the souring of cement mortar test block, is protecting
Test specimen link plate in the case of invariant position, is moved in the middle of hanger and two ends, in each examination in locating ring by card test block successively
On block, three positions side by side wash away 1 time respectively.
4, weigh and wash away the quality of rear test block, calculate and wash away the of poor quality of before and after's test block.
In order to reduce error, repeat above-mentioned experiment 3～5 process 9 times.
Data process: wash away the Δ m1 of poor quality of before and after's test block, Δ m2, Δ m3, Δ m4, Δ m5, Δ for 9 test blocks
M6, Δ m7, Δ m8, Δ m9, remove 2 maximums, 2 minima, takes the meansigma methods of 5 numerical value of residue as this cement sample
Dusting amount.
Repeating above-mentioned experiment 3 times, three experiments are respectively the 1st group, the 2nd group, the 3rd group, experimental result list in respectively table 1,
Table 2, table 3.Result is as follows:
Table 1
Table 2
Table 3
The meansigma methods of above three groups of 3 dusting amounts measured is 2.38, then relative error 1.68% between the 1st group of group, the 2nd group
Relative error 0.84% between group, relative error 2.10% between the 3rd group of group, three groups of experimental results are more or less the same, and show this cement dusting
The repeatability of method for testing performance is good.
In sum, the invention have the advantage that all have by general cement experiment room for molding and the sand that washes away
Iso standard sand, through the screening gained that sieves, is readily available, easy to use；Structure of the detecting device is simple；Detection method is succinct, it is easy to
Grasp, and obtained experimental data accurately and reliably, reproducible, can effectively characterize the dusting performance of cement.
Claims (5)
1. the detection device of a cement dusting performance, it is characterised in that include base, sand box, column, sand bucket, test specimen link plate and
Detection die trial；
Described sand box is mounted at above base, and uprights vertical is fixedly installed in above base；
Described sand bucket and test specimen link plate are connected with column by hanger, and can move up and down on column as required；
Described sand bucket lower end has a sand export, and keeps point-blank with test specimen link plate and the sand box of lower section；
Described detection die trial is used for molding cement to be detected, is fixed on test specimen link plate during detection.
2. the detection device of cement dusting performance as claimed in claim 1, it is characterised in that described column passes through flange and spiral shell
Nail is fixedly mounted on base.
3. the detection device of cement dusting performance as claimed in claim 1, it is characterised in that the sand export of described sand bucket lower end
Inside is also equipped with the mouth that shakes out, and the mouth that shakes out is fixed by outside sand mouth pressure ring.
4. the detection device of cement dusting performance as claimed in claim 1, it is characterised in that arrange on described test specimen link plate
There is locating ring for fixed test die trial.
5. utilizing the cement dusting method for testing performance of cement dusting device for detecting performance described in claim 1,2,3 or 4, it is special
Levy and be to comprise the following steps:
1) add detection die trial after cement to be detected, water, sand being stirred in blender, be then put in cement mortar flowing
Beating 25 times on the electronic jumping table that degree measures, surface ruler strikes off, each molding 9；
2) initial mass of band mould cement briquette is weighed after maintenance 24h；
3) band mould cement briquette being fixed on test specimen link plate, the sand weighing 500g pours sand bucket into, utilizes from sand export freely
The souring of band mould cement briquette is measured by the sand fallen, and is ensureing sand export, band mould cement briquette and sand box
In the case of straight line, successively test specimen link plate is moved in the middle of hanger and two ends, side by side three in each test block
Position washes away 1 time respectively；
4) again weigh, the dusting amount as this cement briquette of poor quality of the front and back belt that is washed mould cement briquette.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059030.XA CN103822843B (en) | 2014-02-21 | 2014-02-21 | The detection device of a kind of cement dusting performance and detection method |
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| CN201410059030.XA CN103822843B (en) | 2014-02-21 | 2014-02-21 | The detection device of a kind of cement dusting performance and detection method |
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| CN103822843A CN103822843A (en) | 2014-05-28 |
| CN103822843B true CN103822843B (en) | 2016-09-21 |
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| CN201410059030.XA Expired - Fee Related CN103822843B (en) | 2014-02-21 | 2014-02-21 | The detection device of a kind of cement dusting performance and detection method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897500A (en) * | 2015-06-19 | 2015-09-09 | 芜湖精塑实业有限公司 | Shakeout testing machine |
| CN108072590A (en) * | 2016-11-15 | 2018-05-25 | 江苏瑞凌新能源科技有限公司 | A kind of machinery current mortar fluidity analyzer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207031Y (en) * | 2008-04-30 | 2009-03-11 | 长安大学 | Tester for air content of cement concrete |
| CN201867409U (en) * | 2010-10-20 | 2011-06-15 | 株洲时代电气绝缘有限责任公司 | Portable test device for cement-emulsified asphalt mortar |
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2014
- 2014-02-21 CN CN201410059030.XA patent/CN103822843B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207031Y (en) * | 2008-04-30 | 2009-03-11 | 长安大学 | Tester for air content of cement concrete |
| CN201867409U (en) * | 2010-10-20 | 2011-06-15 | 株洲时代电气绝缘有限责任公司 | Portable test device for cement-emulsified asphalt mortar |
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| CN103822843A (en) | 2014-05-28 |
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