CN106053185A - Sealing method of concrete impermeability test specimen - Google Patents
Sealing method of concrete impermeability test specimen Download PDFInfo
- Publication number
- CN106053185A CN106053185A CN201610679032.8A CN201610679032A CN106053185A CN 106053185 A CN106053185 A CN 106053185A CN 201610679032 A CN201610679032 A CN 201610679032A CN 106053185 A CN106053185 A CN 106053185A
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- CN
- China
- Prior art keywords
- test specimen
- daily
- sealing method
- concrete impermeability
- positions
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The invention relates to a sealing method of a concrete impermeability test specimen. A method in the prior art has high pollution and causes oil dirt, which is difficult to clean, on a test machine and a test specimen sleeve, and also is high in cost. The sealing method in the invention includes the steps of: 1) cleaning side surfaces of the concrete impermeability test specimen to ensure that the side surfaces are smooth and have no uneven parts and impurities; 2) sleeving the test specimen with 6-8 pieces of daily-use rubber bands respectively at two or three positions, wherein the lengths of the rubber bands are 70.0 +/- 5 mm and the diameters of the rubber bands are 3.0 +/- 2 mm; 3) coating the positions sleeved with the rubber bands with putty, which includes heavy calcium carbonate powder (aged powder) and grease according to the mass ratio of 50:50; and 4) directly pressing the test specimen in the test specimen sleeve to seal the test specimen. The sealing method is simple, practical and reliable, is low in cost, has significant sealing effect and is environment-friendly and safe.
Description
Technical field:
The present invention relates to the encapsulating method in a kind of architectural engineering experimental technique field, specifically, relate to a kind of concrete
Impermeability test test specimen encapsulating method.
Background technology:
National Standard of the People's Republic of China's " Standard for test methods of longterm performance and durability of ordinary concrete " GBJ82-85 has
Closing normal concrete impermeability test, be relatively difficult to operation in carrying out process of the test is the sealing of concrete impervious sample.?
In People's Republic of China's industry standard " marine traffic engineering concrete test code " JTJ270-98, the examination of concrete impermeability test
Part seals suggestion and is coated with the encapsulant of one layer of fusing in sample side, immediately on pressue device, by pre-through baking oven for sample press-in
In the specimen sleeve that heat is crossed, slightly after cooling, get final product pressure relief, test on Anti-leakage instrument together with specimen sleeve.In long-term examination
Test middle discovery, use this encapsulating method, be difficulty with sample and fully seal.Main cause: one, sample side is coated with one layer of fusing
Encapsulant is difficult to homogenization；Its two, baking oven preheats, difficult control of temperature, therefore often occurs owing to sealing in process of the test
Bad and cause the failure of an experiment.People are in long-term impermeability test, constantly it has been proposed that new encapsulating method, as by butter, old
Powder and machine oil are quiet after mixing and stirring by a certain percentage puts a period of time then painting one layer on sample side is uniform, by sample Specimen
Set is tested, although in sealing effectiveness relatively standard, suggesting method is effective, but contaminative is bigger, to testing machine and specimen sleeve
Bring oil stain, it is difficult to cleaning, price is the most expensive simultaneously.Additionally, the most useful silica gel seals, but after sealing, need to put
Put more than 12 hours, requirement can not be met simultaneously for the test that impermeability pressure is higher, often when test proceeds to half
Test specimen occurs that limit is oozed.Therefore it provides a kind of simple reliable encapsulating method seems the most necessary.
Summary of the invention:
The present invention is directed to the deficiency of existing concrete impervious sample encapsulating method, propose concrete impermeability test test specimen sealing side
Method so that it is simple and practical reliably, the most cheap, significant sealing affection, Environmental Safety.
The technical scheme is that concrete impermeability test piece sealing method, step is as follows:
The first step, cleans out concrete impervious sample side, it is ensured that smooth-sided compression candles is without out-of-flatness and foreign material；
Second step, by a length of 70.0 mm ± 5 mm, 6 ~ 8, the daily rubber band of diameter 3.0 mm ± 2 mm, divides two or three
Individual position is sequentially sleeved on test specimen；
3rd step, is being cased with the position brushing putty of rubber band, and putty quality composition is heavy calcium carbonate (old powder): butter is
50:50；
4th step, is pressed directly into ready sample in specimen sleeve, and sample has sealed.
In the present invention, when using 6 daily rubber bands, 6 daily rubber bands divide two positions to be sequentially sleeved on test specimen,
3, test specimen top, 3, bottom.
In the present invention, when using 7 daily rubber bands, 7 daily rubber bands divide three positions to be sequentially sleeved on test specimen,
3, test specimen top, middle 1,3, bottom.
In the present invention, when using 8 daily rubber bands, three positions are divided to be sequentially sleeved in test specimen on 8 daily rubber bands
On, 3, test specimen top, middle 2,3, bottom.
The present invention utilizes daily cheap rubber band to have good flexibility, is pressed into specimen sleeve by certain pressure
In, produce under the effect of water and expand, thus play good sealing, meanwhile, by fraction of putty brushing in rubber band week
Enclose, it is ensured that sample is long term seal effect under high hydraulic pressure effect.The present invention is the most easily operated, the most cheap, close
Envelope effect is notable, Environmental Safety.
Accompanying drawing illustrates:
Fig. 1 is concrete impermeability test piece sealing method schematic flow sheet of the present invention.
Detailed description of the invention:
Embodiments of the invention presented below:
As it is shown in figure 1, in figure, 1 is test specimen, 2 is rubber band, and 3 is specimen sleeve.Concrete impervious sample side is cleaned out,
Ensure that smooth-sided compression candles is without out-of-flatness and foreign material.
Embodiment 1:
Daily rubber band 2 a size of length 70.0 mm, diameter 3.0 mm.2 points of three positions of 8 rubber bands are sequentially sleeved in examination
On part 1,3, test specimen 1 top, 2, middle part, 3, bottom.
Embodiment 2:
Daily rubber band 2 a size of length 75.0 mm, diameter 2.0 mm.2 points of two positions of 6 daily rubber bands are overlapped successively
On test specimen 1,3, test specimen 1 top, 3, bottom.
Embodiment 3:
Daily rubber band 2 a size of length 65.0 mm, diameter 4.0 mm.2 points of three positions of 7 daily rubber bands are overlapped successively
On test specimen 1,3, test specimen 1 top, middle 1,3, bottom.
Above three embodiment is cased with the position brushing putty of rubber band 2, and its material composition is heavy carbon in mass ratio
Acid calcium powder (old powder): butter is 50:50, then by test specimen 1 Specimen set 2, sealing completes.
During carrying out impermeability test, seeping water on limit do not occur in embodiment 1, embodiment 2, the test specimen 1 of embodiment 3, and one
Directly last till that when impermeability pressure test reaches more than 1.2MPa, test specimen 1 is permeable.Success of the test terminates.
The present invention is the most easily operated, the most cheap, significant sealing affection, Environmental Safety.
Claims (6)
1. concrete impermeability test piece sealing method, it is characterised in that step is as follows:
A. concrete impervious sample side is cleaned out, it is ensured that smooth-sided compression candles；
B. by 6 ~ 8, daily rubber band, point two or three positions are sequentially sleeved on test specimen；
C. it is being cased with the position brushing putty of rubber band；
D. being pressed directly in specimen sleeve by ready sample, sample has sealed.
Concrete impermeability test piece sealing method the most according to claim 1, is characterized in that: when using 6 daily rubbers
During rubber band, 6 daily rubber bands divide two positions to be sequentially sleeved on test specimen, 3, test specimen top, 3, bottom.
Concrete impermeability test piece sealing method the most according to claim 1, is characterized in that: when using 7 daily rubbers
During rubber band, 7 daily rubber bands divide three positions to be sequentially sleeved on test specimen, 3, test specimen top, middle 1,3, bottom.
Concrete impermeability test piece sealing method the most according to claim 1, is characterized in that: when using 8 daily rubbers
During rubber band, three positions are divided to be sequentially sleeved on test specimen on 8 daily rubber bands, 3, test specimen top, middle 2,3, bottom.
5. according to the concrete impermeability test piece sealing method described in claim 14, it is characterized in that: described is daily
Rubber band, its a length of 70.0mm ± 5mm, diameter 3.0mm ± 2mm.
Concrete impermeability test piece sealing method the most according to claim 1, is characterized in that: described putty, its material
Material composition is heavy calcium carbonate (old powder) in mass ratio: butter is 50:50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679032.8A CN106053185A (en) | 2016-08-18 | 2016-08-18 | Sealing method of concrete impermeability test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610679032.8A CN106053185A (en) | 2016-08-18 | 2016-08-18 | Sealing method of concrete impermeability test specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106053185A true CN106053185A (en) | 2016-10-26 |
Family
ID=57194776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610679032.8A Pending CN106053185A (en) | 2016-08-18 | 2016-08-18 | Sealing method of concrete impermeability test specimen |
Country Status (1)
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| CN (1) | CN106053185A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211752A (en) * | 2018-09-06 | 2019-01-15 | 中交武汉港湾工程设计研究院有限公司 | A kind of method of fast sealing concrete impervious test piece |
| CN109540616A (en) * | 2018-11-12 | 2019-03-29 | 上海凯顿百森建筑材料科技发展有限公司 | A kind of production method of mortar impervious test piece |
| CN111175210A (en) * | 2019-12-31 | 2020-05-19 | 武汉港湾工程质量检测有限公司 | Method for rapidly sealing mortar anti-permeability test piece |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217780A (en) * | 1994-01-31 | 1995-08-15 | Nishikawa Rubber Co Ltd | Rubber ring for joint |
| CN102393352A (en) * | 2011-10-27 | 2012-03-28 | 上海交通大学 | Concrete impermeability test piece sealing method |
| CN102507298A (en) * | 2011-12-02 | 2012-06-20 | 大连理工大学 | Method for sealing concrete anti-permeating test piece |
-
2016
- 2016-08-18 CN CN201610679032.8A patent/CN106053185A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217780A (en) * | 1994-01-31 | 1995-08-15 | Nishikawa Rubber Co Ltd | Rubber ring for joint |
| CN102393352A (en) * | 2011-10-27 | 2012-03-28 | 上海交通大学 | Concrete impermeability test piece sealing method |
| CN102507298A (en) * | 2011-12-02 | 2012-06-20 | 大连理工大学 | Method for sealing concrete anti-permeating test piece |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211752A (en) * | 2018-09-06 | 2019-01-15 | 中交武汉港湾工程设计研究院有限公司 | A kind of method of fast sealing concrete impervious test piece |
| CN109540616A (en) * | 2018-11-12 | 2019-03-29 | 上海凯顿百森建筑材料科技发展有限公司 | A kind of production method of mortar impervious test piece |
| CN111175210A (en) * | 2019-12-31 | 2020-05-19 | 武汉港湾工程质量检测有限公司 | Method for rapidly sealing mortar anti-permeability test piece |
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Application publication date: 20161026 |
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