CN102393352A - Concrete impermeability test piece sealing method - Google Patents
Concrete impermeability test piece sealing method Download PDFInfo
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- CN102393352A CN102393352A CN2011103316676A CN201110331667A CN102393352A CN 102393352 A CN102393352 A CN 102393352A CN 2011103316676 A CN2011103316676 A CN 2011103316676A CN 201110331667 A CN201110331667 A CN 201110331667A CN 102393352 A CN102393352 A CN 102393352A
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Abstract
The invention discloses a concrete impermeability test piece sealing method in the technical field of building engineering. The steps are as follows: step one, cleaning the side surface of a concrete impermeability sample, and ensuring the smoothness of the side surface; step two, dividing six to eight daily used rubber bands into two or three sections, and sheathing the two or three sections on the test piece in sequence; step three, coating putty on the part sheathed with the daily used rubber band; and step four, directly pressing the prepared sample into a test piece cover, and then completing the sealing of the sample. The sealing method is simple and easy to operate, low in cost, environment-friendly, safe, excellent in sealing effect and particularly suitable for the sealing of high-impermeability test piece.
Description
Technical field
the present invention relates to a kind of encapsulating method of construction engineering technical field, specifically are a kind of concrete impermeability test test specimen encapsulating methods.
Background technology
Relevant normal concrete impermeability test among
State Standard of the People's Republic of China's " Standard for test methods of longterm performance and durability of ordinary concrete " GBJ82-85, more unworkable in the process of making an experiment is the sealing of concrete impervious sample.In People's Republic of China's industry standard " marine traffic engineering concrete test rules " JTJ270-98; The test specimen sealing suggestion of concrete impermeability test is coated with the encapsulant of one deck fusing in the sample side; On pressue device, sample is pressed in the specimen sleeve of baking oven preheating immediately, slightly after the cooling; Get final product pressure relief, on Anti-leakage instrument, make an experiment together with specimen sleeve.In long-term test, find, use this encapsulating method, be difficult to realize that sample seals fully.Main cause: the encapsulant that one of which, sample side are coated with one deck fusing is difficult to homogenising; Its two, baking oven preheating, difficult control of temperature, so often occur owing to seal the bad the failure of an experiment that causes in the process of the test.People are in long-term impermeability test, and constantly the someone proposes new encapsulating method, and the back is quiet puts a period of time and be coated with one deck in the sample side on even then as butter, old powder and machine oil are mixed and stirred by a certain percentage; Sample is pressed in the specimen sleeve makes an experiment; Though sealing effectiveness is effective than suggesting method in the standard, contaminative is bigger, brings oil stain for testing machine and specimen sleeve; Be difficult to clean, price is relatively expensive simultaneously.In addition, also useful silica gel seals, but after the sealing, need to place more than 12 hours, and higher test can not meet the demands for impervious pressure simultaneously, proceeds to a half test specimen through the test of being everlasting and the limit occurs and ooze.Therefore, provide a kind of simple reliable encapsulating method to seem very necessary.
Summary of the invention
the present invention is directed to the above-mentioned deficiency that exists in the prior art, and a kind of concrete impermeability test test specimen encapsulating method is provided.
the present invention realize through following technical scheme.
A kind of concrete impermeability test test specimen encapsulating method is characterized in that, comprises the steps:
The first step is cleaned out the test specimen side, guarantees that the side is smooth;
In second step, be enclosed within on the test specimen successively daily bungee respectively;
In the 3rd step, be with the position brushing putty of daily bungee;
the 4th step directly is pressed into ready test specimen in the specimen sleeve, and the test specimen sealing is accomplished.
preferably, said daily bungee is 6, divides two positions to be enclosed within successively on the test specimen on 6 daily bungees, wherein 3 are enclosed within the test specimen top, other 3 are enclosed within test specimen bottom.
preferably, said daily bungee is 7, divides three positions to be enclosed within successively on the test specimen on 7 daily bungees, wherein 3 are enclosed within the test specimen top, 1 is enclosed within test specimen middle part, all the other 3 are enclosed within the test specimen bottom.
preferably, said daily bungee is 8, divides three positions to be enclosed within successively on the test specimen on 8 daily bungees, wherein 3 are enclosed within the test specimen top, 2 are enclosed within test specimen middle part, all the other 3 are enclosed within the test specimen bottom.
said daily bungee, its length is 70.0mm ± 5mm, diameter is 3.0mm ± 2mm.
said putty comprises heavy calcium carbonate and butter, and the mass ratio of the two is 50:50.
the present invention utilizes daily cheap daily bungee to have good flexibility; Be pressed in the specimen sleeve through certain pressure; Under the effect of water, produce and expand, thereby play good sealing property, simultaneously; A little putty brushing around daily bungee, has been guaranteed sample long term seal effect under the high hydraulic pressure effect.The simple easy operating of the present invention, simultaneously cheap, significant sealing affection, Environmental Safety.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention;
Among
figure, the 1st, test specimen, the 2nd, daily bungee, the 3rd, specimen sleeve.
Embodiment
elaborate to embodiments of the invention below in conjunction with accompanying drawing: present embodiment is being to implement under the prerequisite with technical scheme of the present invention; Provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, in the present embodiment, concrete impermeability test test specimen encapsulating method comprises the steps:
The first step is cleaned out the test specimen side, guarantees that the side is smooth;
In second step, be enclosed within on the test specimen successively daily bungee respectively;
In the 3rd step, be with the position brushing putty of daily bungee;
the 4th step directly is pressed into ready test specimen in the specimen sleeve, and the test specimen sealing is accomplished.
are specially, and 2 fens three positions of 8 daily bungees are enclosed within on the test specimen 13 at test specimen 1 top successively; 2 at middle part, 3 of bottoms are being with the position brushing putty of daily bungee 2 then; Putty comprises heavy calcium carbonate (old powder) and butter; The two mass ratio is 50:50, then test specimen 1 is pressed in the specimen sleeve 2, and sealing is accomplished.In carrying out the impermeability test process, seeping water on the limit does not appear in test specimen 1, lasts till that always impervious pressure test reaches 1.2MPa, and test specimen 1 is permeable.Off-test.
daily bungee 2 length are 70.0 mm, and diameter is 3.0 mm, and under less preferred situation, its length is 70.0mm ± 5mm, and diameter is 3.0mm ± 2mm.
daily bungee 2 can also be selected 6, and when adopting 6 daily bungees 2,2 fens two positions of 6 daily bungees are enclosed within on the test specimen 13 at test specimen 1 top, 3 of bottoms successively.
daily bungee 2 can also be selected 7, and when adopting 7 daily bungees 2,2 fens three positions of 7 daily bungees are enclosed within on the test specimen 1 successively, 3 at test specimen 1 top, middle 1,3 of bottoms.
simple easy operating of the present invention, simultaneously cheap, significant sealing affection, Environmental Safety.
Claims (6)
1. a concrete impermeability test test specimen encapsulating method is characterized in that, comprises the steps:
The first step is cleaned out the test specimen side, guarantees that the side is smooth;
In second step, be enclosed within on the test specimen successively daily bungee respectively;
In the 3rd step, be with the position brushing putty of daily bungee;
The 4th step directly was pressed into ready test specimen in the specimen sleeve, and the test specimen sealing is accomplished.
2. concrete impermeability test test specimen encapsulating method according to claim 1 is characterized in that said daily bungee is 6, divides two positions to be enclosed within successively on the test specimen on 6 daily bungees, and wherein 3 are enclosed within the test specimen top, and other 3 are enclosed within the test specimen bottom.
3. concrete impermeability test test specimen encapsulating method according to claim 1 is characterized in that said daily bungee is 7; Divide three positions to be enclosed within on the test specimen successively on 7 daily bungees; Wherein 3 are enclosed within the test specimen top, and 1 is enclosed within the test specimen middle part, and all the other 3 are enclosed within the test specimen bottom.
4. concrete impermeability test test specimen encapsulating method according to claim 1 is characterized in that said daily bungee is 8; Divide three positions to be enclosed within on the test specimen successively on 8 daily bungees; Wherein 3 are enclosed within the test specimen top, and 2 are enclosed within the test specimen middle part, and all the other 3 are enclosed within the test specimen bottom.
5. according to each described concrete impermeability test test specimen encapsulating method in the claim 1 to 4, it is characterized in that, said daily bungee, its length is 70.0mm ± 5mm, diameter is 3.0mm ± 2mm.
6. according to each described concrete impermeability test test specimen encapsulating method in the claim 1 to 4, it is characterized in that said putty comprises heavy calcium carbonate and butter, the mass ratio of the two is 50:50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103316676A CN102393352A (en) | 2011-10-27 | 2011-10-27 | Concrete impermeability test piece sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103316676A CN102393352A (en) | 2011-10-27 | 2011-10-27 | Concrete impermeability test piece sealing method |
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| CN102393352A true CN102393352A (en) | 2012-03-28 |
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| CN2011103316676A Pending CN102393352A (en) | 2011-10-27 | 2011-10-27 | Concrete impermeability test piece sealing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033461A (en) * | 2013-01-09 | 2013-04-10 | 许昌金科建筑清运有限公司 | Method for testing water permeability coefficient of water permeable brick |
| CN106053185A (en) * | 2016-08-18 | 2016-10-26 | 刘志坚 | Sealing method of concrete impermeability test specimen |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094230A (en) * | 1995-06-26 | 1997-01-07 | Shimizu Corp | Water leakage-preventing method at placing joint of concrete structure |
| CN101666736A (en) * | 2009-09-25 | 2010-03-10 | 东南大学 | Impermeability test method for concrete |
-
2011
- 2011-10-27 CN CN2011103316676A patent/CN102393352A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094230A (en) * | 1995-06-26 | 1997-01-07 | Shimizu Corp | Water leakage-preventing method at placing joint of concrete structure |
| CN101666736A (en) * | 2009-09-25 | 2010-03-10 | 东南大学 | Impermeability test method for concrete |
Non-Patent Citations (1)
| Title |
|---|
| 王明芳: "混凝土抗渗试验试件密封研究", 《铜陵学院学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033461A (en) * | 2013-01-09 | 2013-04-10 | 许昌金科建筑清运有限公司 | Method for testing water permeability coefficient of water permeable brick |
| CN103033461B (en) * | 2013-01-09 | 2015-10-28 | 许昌金科建筑清运有限公司 | Water permeability coefficient of water permeable brick method of testing |
| CN106053185A (en) * | 2016-08-18 | 2016-10-26 | 刘志坚 | Sealing method of concrete impermeability test specimen |
| 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 |
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Application publication date: 20120328 |