CN202755464U - Membrane-composite sodium bentonite geosynthetic clay liner - Google Patents
Membrane-composite sodium bentonite geosynthetic clay liner Download PDFInfo
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- CN202755464U CN202755464U CN 201220331075 CN201220331075U CN202755464U CN 202755464 U CN202755464 U CN 202755464U CN 201220331075 CN201220331075 CN 201220331075 CN 201220331075 U CN201220331075 U CN 201220331075U CN 202755464 U CN202755464 U CN 202755464U
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- sodium bentonite
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- composite sodium
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Abstract
The utility model relates to a membrane-composite sodium bentonite geosynthetic clay liner which comprises a polypropylene knitted cloth layer and a polypropylene needle punched non-woven fabrics layer, a sodium bentonite particle layer is fixed between the polypropylene knitted cloth layer and the polypropylene needle punched non-woven fabrics layer in a needling mode, and a metallocene geomembrane layer is coated on the polypropylene needle punched non-woven fabrics layer in a glue-spraying mode. Due to the fact that the metallocene geomembrane layer is arranged on the combining surface of the membrane-composite sodium bentonite geosynthetic clay liner and a building, the stability of the waterproof performance of the membrane-composite sodium bentonite geosynthetic clay liner is strengthened, the osmotic coefficient of the membrane-composite sodium bentonite geosynthetic clay liner is greatly reduced, and a double-waterproof effect is achieved, puncture-resistant strength of a product can be increased, the membrane-composite sodium bentonite geosynthetic clay liner is enabled to be suitable for worse construction environment, and resists collapsing forces on the surface of the product from impurities of laying in construction operations and upper layer backfill, and the surface integrity of the membrane-composite sodium bentonite geosynthetic clay liner is guaranteed.
Description
Technical field
The utility model relates to a kind of building water-proof material, particularly a kind of film composite sodium bentonite waterproof blanket.
Background technology
In the construction work, building structure is water inlet in a single day, and its performance will be destroyed, and also brings puzzlement to the user when reducing Building life cycle, usually all need certain waterproof measure is taked in building structure when building operations, sodium-based bentonite waterproof carpet is a kind of waterproofing materials commonly used at present.Sodium bentonite is the flat crystal structure, it is a kind of clay that has than strong absorptive, each layer separated by very small thin layer and water molecule layer, sodium ion is positioned at the surface of each layer, when contacting with extraneous hydrone, hydrone just is attracted on the thin layer, and when the Molecular Adsorption mixing stopped, sodium bentonite just formed the stable colloid of one deck.But studies show that without volume free wxpansion after the sodium bentonite suction in the situation of limitation power to more than 15 times of own vol.Under the effect of limitation power, under the effect of external force, can form the waterproof film of one deck densification after the sodium-based bentonite waterproof carpet suction, prevent that moisture from passing through.In the engineering, when using and lay sodium-based bentonite waterproof carpet, the material with the hidden danger of puncturing that need to be exposed to surface of base, remove such as brick, stone, tile fragment, glass and metal fragment, branch, plant roots and stems etc., just can carry out next step construction, if do not clean up, puncture possibly the upper strata waterproofing materials and cause waterproof failure and leakage problems occurs.In addition, in the construction, keep away the surface that big machinery or instrument contact waterproof blanket are unavoidably arranged, and produce destructiveness more or less.General working design, can when using waterproof blanket, add the geomembrane that covers one deck 1 millimeter ~ 2 millimeters thick, play the effect of strengthening waterproof, when film was destroyed, bentonitic expansion character can be repaired the waterproof failure that remedies geomembrane broken hole place automatically in the waterproof blanket.Be convenient construction, save cost, and avoid the destruction on waterproof blanket surface, consider and metallocene geotechnique's film of one deck high flexibility, high paracentesis resistance 0.1 millimeter ~ 0.2 millimeter and sodium-based bentonite waterproof carpet are carried out compound, form a kind of film composite sodium bentonite waterproof blanket, solve the problem that runs in the construction, not only can reduce the cost of geomembrane, save Master Cost, can also save manually, speed up the work, have very large economic benefit.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of film composite sodium bentonite waterproof blanket with puncture-resistant function is provided.
The purpose of this utility model is achieved through the following technical solutions:
The film composite sodium bentonite waterproof blanket, characteristics are: comprise polypropylene woven layer of cloth and polypropylene acupuncture nonwoven layer of cloth, between polypropylene woven layer of cloth and polypropylene acupuncture nonwoven layer of cloth, be fixed with the sodium bentonite stratum granulosum by the acupuncture mode, on polypropylene acupuncture nonwoven layer of cloth, be covered with metallocene geotechnique thin layer by the glue spraying mode.
Further, above-mentioned film composite sodium bentonite waterproof blanket, described metallocene geotechnique thin layer are by density polyethylene film with high, metallocene film with low density polyethylene films is three-layer co-extruded forms.
Further, above-mentioned film composite sodium bentonite waterproof blanket, the thickness of described metallocene geotechnique thin layer is 0.1 millimeter ~ 0.15 millimeter.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
The surface that waterproof blanket is combined with building arranges metallocene geotechnique thin layer, strengthened the stability of waterproof blanket water resistance, greatly reduce the transmission coefficient of waterproof blanket, reached dual waterproof effect, and can increase the punctured resistance of product, make it go for more abominable construction environment, during the opposing construction operation is laid and the impurity in the backfill of upper strata to the destructive power of material surface, guaranteed the surface integrity of waterproof blanket.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: cross section structure schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1, the film composite sodium bentonite waterproof blanket, comprise polypropylene woven layer of cloth 1 and polypropylene acupuncture nonwoven layer of cloth 2, between polypropylene woven layer of cloth 1 and polypropylene acupuncture nonwoven layer of cloth 2, be fixed with sodium bentonite stratum granulosum 3 by the acupuncture mode, on polypropylene acupuncture nonwoven layer of cloth 2, be covered with metallocene geotechnique thin layer 4 by the glue spraying mode.Metallocene geotechnique thin layer 4 is by density polyethylene film with high, metallocene film and low density polyethylene films is three-layer co-extruded forms, and thickness is 0.1 millimeter ~ 0.15 millimeter.
During construction, polypropylene woven layer of cloth 1 is combined with building, metallocene geotechnique thin layer 4 is towards upstream face, when having water droplet to drip to metallocene geotechnique thin layer 4, this layer can stop the infiltration of water and spread, in case arrive saturation, water sees through polypropylene acupuncture nonwoven layer of cloth 2 and penetrates into sodium bentonite stratum granulosum 3 from metallocene geotechnique thin layer 4, the effect of waterproof is played in the imbibition of sodium bentonite particle.Polypropylene woven layer of cloth 1 adopts the high strength geotextile; have tensile strength and ductility; utilize its high-intensity performance as the carrier of sodium bentonite particle; and polypropylene acupuncture nonwoven layer of cloth 2 has anti-oxidant radiation-resistant performance; can increase the application life of product; the metallocene geotechnique thin layer 4 that is attached to has very strong abrasion resistance and puncture resistance; can resist impurity sharp object and the wearing and tearing material of contact surface; not only strengthened the waterproof effect; can also protect integral material not to be damaged, the waterproof, seepage control effect that waterproof blanket is brought into normal play.
The technique of making the film composite sodium bentonite waterproof blanket is:
1) with polypropylene woven layer of cloth 1 as bottom carrier, select high-quality sodium bentonite uniform particles to be sprinkling upon polypropylene woven layer of cloth 1;
2) with rhombus high frequency needle punching technique, the sodium bentonite particle is fixed between bottom polypropylene woven layer of cloth 1 and the top polypropylene acupuncture nonwoven layer of cloth 2, forms sodium bentonite stratum granulosum 3;
3) adopt the hot spray-bonding craft of Z-type, metallocene geotechnique thin layer 4 is sticked on the polypropylene acupuncture nonwoven layer of cloth 2;
4) the film composite sodium bentonite waterproof blanket is cut out be suitable size, to satisfy different construction requirements.
The surface that waterproof blanket is combined with building arranges metallocene geotechnique thin layer, strengthened the stability of waterproof blanket water resistance, greatly reduce the transmission coefficient of waterproof blanket, reached dual waterproof effect, and can increase the punctured resistance of product, make it go for more abominable construction environment, during the opposing construction operation is laid and the impurity in the backfill of upper strata to the destructive power of material surface, guaranteed the surface integrity of waterproof blanket.
It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. film composite sodium bentonite waterproof blanket, it is characterized in that: comprise polypropylene woven layer of cloth (1) and polypropylene acupuncture nonwoven layer of cloth (2), between polypropylene woven layer of cloth (1) and polypropylene acupuncture nonwoven layer of cloth (2), be fixed with sodium bentonite stratum granulosum (3) by the acupuncture mode, upward be covered with metallocene geotechnique thin layer (4) by the glue spraying mode at polypropylene acupuncture nonwoven layer of cloth (2).
2. film composite sodium bentonite waterproof blanket according to claim 1 is characterized in that: described metallocene geotechnique's thin layer (4) is by density polyethylene film with high, metallocene film and low density polyethylene films is three-layer co-extruded forms.
3. film composite sodium bentonite waterproof blanket according to claim 1 and 2 is characterized in that: the thickness of described metallocene geotechnique's thin layer (4) is 0.1 millimeter ~ 0.15 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220331075 CN202755464U (en) | 2012-07-10 | 2012-07-10 | Membrane-composite sodium bentonite geosynthetic clay liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220331075 CN202755464U (en) | 2012-07-10 | 2012-07-10 | Membrane-composite sodium bentonite geosynthetic clay liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755464U true CN202755464U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220331075 Expired - Lifetime CN202755464U (en) | 2012-07-10 | 2012-07-10 | Membrane-composite sodium bentonite geosynthetic clay liner |
Country Status (1)
| Country | Link |
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| CN (1) | CN202755464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667056A (en) * | 2016-03-23 | 2016-06-15 | 常熟市阳硕无纺设备有限公司 | GCL (geosynthetic clay liner) bentonite waterproof blanket gluing and laminating machine |
-
2012
- 2012-07-10 CN CN 201220331075 patent/CN202755464U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667056A (en) * | 2016-03-23 | 2016-06-15 | 常熟市阳硕无纺设备有限公司 | GCL (geosynthetic clay liner) bentonite waterproof blanket gluing and laminating machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |