CN105651674A - Method for detecting water breakthrough performance of waterproof coiled material - Google Patents
Method for detecting water breakthrough performance of waterproof coiled material Download PDFInfo
- Publication number
- CN105651674A CN105651674A CN201610004435.2A CN201610004435A CN105651674A CN 105651674 A CN105651674 A CN 105651674A CN 201610004435 A CN201610004435 A CN 201610004435A CN 105651674 A CN105651674 A CN 105651674A
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- waterproof roll
- leakage
- test specimen
- proof performance
- coiled material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
Abstract
The invention relates to a method for detecting the water breakthrough performance of a waterproof coiled material. The method comprises the following steps: (1) reserving a through hole in the waterproof coiled material, then pouring a mortar block on the waterproof coiled material to form a test piece, demolding and maintaining, wherein the to-be-detected area of the waterproof coiled material is more than or equal to the mounting area of a mounting base of an anti-seepage test piece, the waterproof coiled material and the mounting base are arranged in a sealed manner, the anti-seepage capability of the mortar block is larger than the stress of the mortar block, and the bottom area of the mortar block is smaller than that of the mounting surface of the mounting base of the anti-seepage test piece; and (2) putting the maintained test piece in an anti-seepage device, enabling the waterproof coiled material to face water, and under specific pressure and time conditions, observing whether water seeps from the binding edge of the waterproof coiled material and the mortar block or not at any time, and determining that the water breakthrough performance of the waterproof coiled material is not qualified once water seepage is found. According to the method, on the premise that pressure difference is generated in the testing process, the problems of complicated manufacture, heavy test piece, poor repeatability and low success rate can be solved.
Description
Technical field
The present invention relates to the detection method of the leakage-proof performance of a kind of waterproof roll.
Background technology
It is known that China's leakage of building rate remains high, one of problem is exactly there is channeling water layer between waterproof layer and structure sheaf. Once waterproof roll has a point to destroy, water can carry out seepage by breakdown point to basic unit, if this waterproof roll has good anti-channeling aqueous, that need to repair breakdown point place can solve leakage problems; And if waterproof roll and basic unit bonding is not good, then water can pass through breakdown point and spread infiltration between coiled material and basic unit, causes large-area infiltration, now needs to repair or re-start waterproof construction to whole face and could solve seepage. Only it is improved water-proof coiled material product and construction quality, makes waterproof layer and structure sheaf tight bond, eliminate channeling water passage, the reliability of waterproof system could be improved.
Therefore, waterproof roll is widely used in roof, construction wall and underground engineering as a kind of flexible building material product, is the first barrier of whole engineering waterproofing, whole engineering is played vital effect. Therefore the leakage-proof performance of waterproof roll is an important indicator of this product.
But, overlaying class waterproof roll is the unique prefabricated waterproof roll being bonded on cast concrete. Overlay the development of waterproof roll, solve in the waterproofing protection of underground engineering structure base plate is constructed, the problem such as the bonding of structure and waterproof roll and engineering site laying water-proof coiled material and cast structural concrete. Overlay the maximum attraction of class waterproof roll to be in that to realize full viscous with structural concrete, form skin-type waterproof, effectively prevent channeling water phenomenon, improve the reliability of waterproofing work. Therefore, the Key Performance Indicator that leakage-proof performance is such material of class waterproof roll is overlay.
At present, the detection method overlaying class waterproof roll leakage-proof performance requires to carry out according to product standard GB/T23457-2009 " overlaying/wet-laying waterproof roll ", detailed process is: offer through hole on coiled material test specimen, concrete is cast on the bonding plane of coiled material test specimen, then impervious test piece is loaded concrete impervious instrument, seal with paraffin in the middle of impervious test piece and concrete impervious instrument mould, being forced into concrete water-permeating or reach the test pressure of regulation, result of the test is observed ooze out with or without open fire on waterproof roll bonding plane by being thrown off coiled material.
But, fully seal between impervious test piece and impervious mould, the pressure suffered by concrete sample and coiled material test specimen adhesive surface each point place be all from Anti-leakage instrument to unified force value, pressure differential cannot be produced between waterproof roll through hole and other position of adhesive surface, no matter the bonding of waterproof roll and concrete block how, is all difficult to channeling water phenomenon occur.Therefore this standard method is adopted cannot to detect the leakage-proof performance of waterproof roll.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, the detection method of the leakage-proof performance of the waterproof roll of a kind of improvement is provided, in guarantee test process, produces to also solve under the premise of pressure differential that sample preparation is loaded down with trivial details, test specimen is heavy, poor repeatability, low success rate of problem.
For solving above technical problem, the present invention adopts the following technical scheme that:
A kind of method of the leakage-proof performance of waterproof roll, it comprises the following steps:
(1), prefabricated test specimen, on waterproof roll, be first preset with through hole, on waterproof roll, then build the test specimen forming standard shape, simultaneously the demoulding at the standard conditions, maintenance; Or first building the test specimen forming standard shape, the demoulding at the standard conditions, maintenance on waterproof roll, on waterproof roll, punching forms through hole subsequently;
(2), the test specimen after maintenance is put on Anti-leakage instrument, and under the pressure and time conditions of regulation, test specimen is carried out impervious detection;
Particularly, the area that waterproof roll is to be detected in step (1) is more than or equal to the area of the installed surface of Anti-leakage instrument test specimen mounting seat, and between waterproof roll and mounting seat, seal setting, test specimen includes the waterproof roll being positioned at bottom, the mortar block being cast on waterproof roll, wherein the impermeability of mortar block is more than self subjected to stress, and the floor space of mortar block is less than the installed surface area of Anti-leakage instrument test specimen mounting seat; In step (2), waterproof roll face meets water, and pressurizes and keeps a period of time, observes whether waterproof roll has water to ooze out with mortar block bond edge at any time, once there is infiltration, namely can determine that the leakage-proof performance inconsistency lattice of waterproof roll.
Preferably, in step (2), the installation process of test specimen have employed jig, the setting of jig prevent test specimen when being subject to water slug, relatively to connect the floating of seat.
One according to the present invention is embodied as and preferred aspect, it is round table-like that mortar block becomes larger in external diameter from top to bottom, the connection seat being connected is fixed, with described Anti-leakage instrument test specimen mounting seat, in positioning sleeve that jig includes being set in described mortar block periphery, the bottom being arranged on described positioning sleeve, wherein the inner chamber of positioning sleeve and mortar are block-shaped and size is all identical, and connection seat is provided with installing hole.
Preferably, waterproof roll area to be detected is equal to the area of the installed surface of described mounting seat, and the periphery of described waterproof roll be provided with the distribution of described installing hole one_to_one corresponding dodge breach, in step (2) by bolt part through installing hole, dodge breach and threaded mutually with mounting seat.
Preferably, mortar block upper surface diameter is 70mm, and lower surface diameter is 80mm, and height is 30mm.
Preferably, through hole is positioned at the center of described waterproof roll.
Another according to the present invention is embodied as and preferred aspect, is pressurized to 0.4MPa in step (2), keeps 24h, and then often pressurize 0.1MPa, keeps 4h, observes whether waterproof roll has water to ooze out with edge, mortar bonding face at any time.
Preferably, the impermeability pressure of mortar block is be more than or equal to 0.8MPa.
Preferably, the described test specimen demoulding, then maintenance 7d��28d under cement standard curing condition after (20 �� 2) DEG C place 24h.
Additionally, waterproof roll and mounting seat equal diameters are 130mm. Being sealed by rubber washer between waterproof roll and mounting seat, wherein rubber washer diameter is 90mm.
Due to the enforcement of above technical scheme, the present invention compared with prior art has the advantage that
The present invention selects small sand lumps, and compared with large-sized concrete block, sample preparation is convenient, and uniformity is good, and test repeatability is high. The waterproof roll test specimen cut is more than or equal to mortar Anti-leakage instrument base, eliminate the aqueduct adopting paraffin to be equivalent to introduce at coiled material surface a whole circle while sealing this step of space between concrete block and impervious mould, not only can ensure that and will not flow into, because of water source, bottom, the erroneous judgement causing result from test specimen edge, moreover it is possible to ensure that test specimen produces pressure differential in process of the test.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described in detail:
Fig. 1 is the test specimen cross-sectional schematic of the detection method of leakage-proof performance of the present invention;
Wherein: 1, waterproof roll; 10, through hole; 11, breach is dodged; 2, mortar block; 3, jig; 30, positioning sleeve; 31, seat is connected; 310, installing hole; 4, mounting seat; 5, bolt part; 6, rubber washer.
Detailed description of the invention
As it is shown in figure 1, its waterproof roll 1 mainly including being positioned at bottom of detection test block of the present embodiment, the mortar block 2 that is cast on the bonding plane of waterproof roll 1.
The diameter of waterproof roll 1 and the equal diameters of Anti-leakage instrument base, be 130mm. It is round table-like that mortar block 2 becomes larger in external diameter from top to bottom, and mortar block 2 upper surface diameter is 70mm, and lower surface diameter is 80mm, and height is 30mm; The impermeability pressure of mortar block 2 is be more than or equal to 0.8MPa simultaneously.
In this example, the detection method of the leakage-proof performance of waterproof roll, it comprises the following steps: 1), detect the pre-formed of test specimen; 2), the judgement of the detection of test specimen and result.
The forming process detecting test specimen in step 1) is as follows:
Cut waterproof roll 1 and make the equal diameters of its shape and Anti-leakage instrument base, then it is preset with through hole 10 at the center of waterproof roll 1, then the mortar block 2 of above-mentioned specification and intensity is built at the upper surface of waterproof roll 1, the demoulding, then maintenance 7d��28d under cement standard curing condition after (20 �� 2) DEG C place 24h.
Or first build the mortar block 2 of above-mentioned specification and intensity at waterproof roll 1 upper surface, the demoulding, then maintenance 7d��28d under cement standard curing condition after (20 �� 2) DEG C place 24h, on waterproof roll 1, punching forms through hole 10 subsequently.
Step 2) in detection and the decision process of result as follows:
Test specimen after maintenance in step 1) is put in impervious detector, and adopt jig 3, concrete, jig 3 includes the positioning sleeve 30 being set in mortar block 2 periphery, it is arranged on the bottom connection seat 31 that be connected fixing with Anti-leakage instrument test specimen mounting seat 4 of positioning sleeve 30, wherein the inner chamber of positioning sleeve 30 is all identical with mortar block 2 shape and size, connect seat 31 and be provided with installing hole 310, simultaneously, the periphery of waterproof roll 1 be provided with installing hole 310 one_to_one corresponding distribution dodge breach 11, then bolt part 5 traverse installing hole 310 is adopted, dodge breach 11 to threaded with mounting seat 4 phase.
Then, the bottom surface of waterproof roll meets water, and pressurizes and keeps a period of time, observes whether waterproof roll has water to ooze out with mortar block bond edge at any time, once there is infiltration, namely can determine that the leakage-proof performance inconsistency lattice of waterproof roll.
Concrete, when being pressurized to 0.4MPa, keep 24h, often pressurize 0.1MPa later, keeps 4h, is forced into authorized pressure value.If whether waterproof roll and mortar block bond edge have water to ooze out, can directly judge the leakage-proof performance inconsistency lattice of this waterproof roll 1.
Additionally, in this example, sealed by rubber washer 6 between waterproof roll 1 and mounting seat 4, wherein rubber washer 6 diameter is 90mm.
In sum, the following obvious advantage that the detection method of the leakage-proof performance of the waterproof roll that the present embodiment is taked has:
The present invention selects small sand lumps, and compared with large-sized concrete block, sample preparation is convenient, and uniformity is good, and test repeatability is high. The waterproof roll test specimen cut is more than or equal to mortar Anti-leakage instrument base, eliminate the aqueduct adopting paraffin to be equivalent to introduce at coiled material surface a whole circle while sealing this step of space between concrete block and impervious mould, not only can ensure that and will not flow into, because of water source, bottom, the erroneous judgement causing result from test specimen edge, moreover it is possible to ensure that test specimen produces pressure differential in process of the test.
Above the present invention is described in detail; its object is to allow the personage being familiar with this art will appreciate that present disclosure and to be carried out; can not limit the scope of the invention with this; the equivalence that all spirit according to the present invention are made changes or modifies, and all should be encompassed in protection scope of the present invention��
Claims (10)
1. a method for the leakage-proof performance of waterproof roll, it comprises the following steps:
(1), prefabricated test specimen, on waterproof roll, be first preset with through hole, on waterproof roll, then build the test specimen forming standard shape, simultaneously the demoulding at the standard conditions, maintenance; Or first building the test specimen forming standard shape, the demoulding at the standard conditions, maintenance on waterproof roll, on waterproof roll, punching forms through hole subsequently;
(2), the test specimen after maintenance is put on Anti-leakage instrument, and under the pressure and time conditions of regulation, test specimen is carried out impervious detection;
It is characterized in that: the area that waterproof roll is to be detected in step (1) is more than or equal to the area of the installed surface of Anti-leakage instrument test specimen mounting seat, and between waterproof roll and mounting seat, seal setting, described test specimen includes the waterproof roll being positioned at bottom, the mortar block being cast on described waterproof roll, the impermeability of wherein said mortar block is more than self subjected to stress, and the floor space of mortar block is less than the installed surface area of Anti-leakage instrument test specimen mounting seat; In step (2), waterproof roll face meets water, and pressurizes and keeps a period of time, observes whether waterproof roll has water to ooze out with mortar block bond edge at any time, once there is infiltration, namely can determine that the leakage-proof performance inconsistency lattice of waterproof roll.
2. the detection method of the leakage-proof performance of waterproof roll according to claim 1, it is characterized in that: in step (2), the installation process of test specimen have employed jig, the setting of described jig floating of relatively described connection seat when preventing described test specimen to be subject to water slug.
3. the detection method of the leakage-proof performance of waterproof roll according to claim 2, it is characterized in that: it is round table-like that described mortar block becomes larger in external diameter from top to bottom, the connection seat being connected is fixed, with described Anti-leakage instrument test specimen mounting seat, in positioning sleeve that described jig includes being set in described mortar block periphery, the bottom being arranged on described positioning sleeve, the inner chamber of wherein said positioning sleeve is block-shaped with described mortar and size is all identical, and described connection seat is provided with installing hole.
4. the detection method of the leakage-proof performance of waterproof roll according to claim 3, it is characterized in that: described waterproof roll area to be detected is equal to the area of the installed surface of described mounting seat, and the periphery of described waterproof roll be provided with the distribution of described installing hole one_to_one corresponding dodge breach, in step (2) by bolt part through described installing hole, dodge breach and threaded mutually with described mounting seat.
5. the detection method of the leakage-proof performance of waterproof roll according to claim 3, it is characterised in that: described mortar block upper surface diameter is 70mm, and lower surface diameter is 80mm, and height is 30mm.
6. the detection method of the leakage-proof performance of waterproof roll according to claim 1, it is characterised in that: described through hole is positioned at the center of described waterproof roll.
7. the detection method of the leakage-proof performance of waterproof roll according to claim 1, it is characterized in that: be pressurized to 0.4MPa in step (2), keeping 24h, then often pressurize 0.1MPa, keep 4h, observe whether waterproof roll has water to ooze out with edge, mortar bonding face at any time.
8. the detection method of the leakage-proof performance of waterproof roll according to claim 1, it is characterised in that: the impermeability pressure of described mortar block is be more than or equal to 0.8MPa.
9. the detection method of the leakage-proof performance of waterproof roll according to claim 1, it is characterised in that: described test specimen is the demoulding, then maintenance 7d��28d under cement standard curing condition after (20 �� 2) DEG C place 24h.
10. the detection method of the leakage-proof performance of waterproof roll according to claim 1, it is characterized in that: described waterproof roll and mounting seat equal diameters are 130mm, being sealed by rubber washer between described waterproof roll and mounting seat, wherein said rubber washer diameter is 90mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610004435.2A CN105651674B (en) | 2016-01-06 | 2016-01-06 | A kind of detection method of the leakage-proof performance of waterproof roll |
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| CN201610004435.2A CN105651674B (en) | 2016-01-06 | 2016-01-06 | A kind of detection method of the leakage-proof performance of waterproof roll |
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Cited By (5)
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| CN106197867A (en) * | 2016-08-16 | 2016-12-07 | 上海同科交通科技有限公司 | A kind of Identification Beneath Concrete Slabs sealing property testing equipment |
| CN107063965A (en) * | 2017-03-23 | 2017-08-18 | 上海市建筑科学研究院(集团)有限公司 | A kind of wide span house cap flexible waterproof layer construction and impervious experimental provision |
| CN108169122A (en) * | 2016-12-07 | 2018-06-15 | 天津市奇才防水材料有限公司 | A kind of waterproof material Application of composite system performance testing method |
| CN109781604A (en) * | 2019-02-20 | 2019-05-21 | 中国海洋石油集团有限公司 | Method is altered in a kind of survey of cement slurry |
| CN112595648A (en) * | 2020-12-14 | 2021-04-02 | 广东省水利水电科学研究院 | Device and method for detecting seepage failure ratio degradation quality of core sample of plastic concrete wall |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106197867A (en) * | 2016-08-16 | 2016-12-07 | 上海同科交通科技有限公司 | A kind of Identification Beneath Concrete Slabs sealing property testing equipment |
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| CN107063965A (en) * | 2017-03-23 | 2017-08-18 | 上海市建筑科学研究院(集团)有限公司 | A kind of wide span house cap flexible waterproof layer construction and impervious experimental provision |
| CN109781604A (en) * | 2019-02-20 | 2019-05-21 | 中国海洋石油集团有限公司 | Method is altered in a kind of survey of cement slurry |
| CN109781604B (en) * | 2019-02-20 | 2021-07-06 | 中国海洋石油集团有限公司 | Channeling measurement method for cement slurry |
| CN112595648A (en) * | 2020-12-14 | 2021-04-02 | 广东省水利水电科学研究院 | Device and method for detecting seepage failure ratio degradation quality of core sample of plastic concrete wall |
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| CN105651674B (en) | 2019-01-08 |
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