CN203141929U - Light-weight bentonite waterproof blanket - Google Patents
Light-weight bentonite waterproof blanket Download PDFInfo
- Publication number
- CN203141929U CN203141929U CN 201320085525 CN201320085525U CN203141929U CN 203141929 U CN203141929 U CN 203141929U CN 201320085525 CN201320085525 CN 201320085525 CN 201320085525 U CN201320085525 U CN 201320085525U CN 203141929 U CN203141929 U CN 203141929U
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- composite high
- bentonite
- water uptake
- gcl
- light
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Abstract
The utility model discloses a light-weight bentonite waterproof blanket. The light-weight bentonite waterproof blanket is processed by replacing bentonite particles with bentonite composite high-water-absorption material particles serving as a raw material and needling non-woven cloth, the bentonite composite high-water-absorption material particles and knitted meshes. Compared with the common bentonite waterproof blanket, the light-weight bentonite waterproof blanket has the advantages of high water absorption rate and large water absorption amount and is extremely high in water prevention and permeation prevention performance; the unit area quality is reduced; and the light-weight bentonite waterproof blanket is convenient to construct and convey.
Description
Technical field
The utility model relates to a kind of building water-proof material, particularly a kind of lightweight GCL for building, civil engineering.
Background technology
GCL is a kind of novel geosynthetics.Common GCL be through special technology and equipment with the bentonite clay particle layer evenly, be securely fixed between nonwoven layer and the base fabric and make, its bottom is woven cloth, the upper strata is nonwoven.And have good self-healing performance and freezing and thawing performance.This waterproof material is widely used, and can be used for underground waterproof, antiseepage fields such as subway, hydraulic engineering, water feature design engineering, refuse landfill, civil buildings.
Sodium bentonite has dilatancy preferably; good dispersion in aqueous medium; when contacting with water; become 10～20 times gelinite of original particle volume, under the effect that is subjected to from substrate, protective layer and waterproof blanket internal fiber pulling force, intert between the molecule and arrange; internal voids dwindles; form fine and close gel structure layer, hydrone can't see through, thereby plays the waterproof, seepage control effect.Make GCL reach the requirement of waterproof, seepage control, necessarily require in the GCL bentonitic mass area ratio at 4500g/m
2More than, GCL just has lower infiltration coefficient, reaches the waterproof, seepage control effect.Because the mass area ratio of common GCL is bigger, can cause the increase of cost of transportation like this, make troubles to construction, especially in the construction of facade engineering.
Summary of the invention
In order to solve big, the inconvenient problem of transporting, construct of common GCL mass area ratio, the utility model proposes a kind of new thinking, be characterized in the bentonite clay particle of common GCL is replaced with the bentonite composite high-water uptake material, a kind of lightweight GCL is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of lightweight GCL comprises face cloth and base fabric, is provided with bentonite composite high-water uptake stratum granulosum between described cloth and the base fabric.
Further, preferred version of the present utility model is: described bentonite composite high-water uptake stratum granulosum evenly is fixed between nonwoven and the woven cloth by needling process.
Further, preferred version of the present utility model is: the bentonite composite high-water uptake grain graininess of described bentonite composite high-water uptake stratum granulosum is 0.2～2mm.
Further, preferred version of the present utility model is: the bentonite composite high-water uptake particle index of described bentonite composite high-water uptake stratum granulosum is as follows: expansion index 〉=40mL/2g, and durability 〉=20mL/2g, filter loss≤15mL, mass area ratio is 2000g/m
2
Further, preferred version of the present utility model is: described cloth is nonwoven.
Further, preferred version of the present utility model is: described base fabric is woven cloth.
Described bentonite composite high-water uptake material is to be carrier with the sodium bentonite, with N, the N-methylene-bisacrylamide is that crosslinking agent, ammonium persulfate are that initator, NaOH are that oxidant and sodium thiosulfate are reducing agent, mix by a certain percentage, after fully stirring, under 20 ℃ of room temperatures, carried out polymerisation 20 minutes, be heated to 50 ℃ again and continue reaction, up to obtaining gelatinous polymer, namely obtain the bentonite composite high-water uptake material.This high-absorbent material drying pulverizing is made 0.2～2mm particle and is got final product.
Concrete preparation method, get 1 part of 200 order sodium bentonite in powder (mass parts), ratio according to 1:2 adds distilled water, after fully stirring, add 1 part of 40% acrylamide aqueous solution (mass parts), after fully mixing, add N successively, 0.0002 part of N-methylene-bisacrylamide, 0.005 part of ammonium persulfate, 0.05 part in NaOH, 0.015 part in sodium thiosulfate, after fully mixing, at room temperature carried out polymerisation 20 minutes, be heated to 50 ℃ again and continue reaction, up to obtaining gelatinous polymer, namely obtain the bentonite composite high-water uptake material.
The beneficial effects of the utility model:
Compare with common GCL, the main advantage of this utility model is as follows:
(1) adopting the bentonite composite high-water uptake material, when composite high-water uptake material is met water, may be expanded to 40～60 times, is 2～3 times of common bentonite inflated index, the waterproof, seepage control performance, can bigger improvement be arranged more common GCL from water-retaining property.
(2) lightweight GCL mass area ratio reduces greatly, is convenient to transportation, saves cost of transportation.
(3) construction of lightweight GCL is convenient, can the reduction of erection time, reduce construction cost.
(4) lightweight GCL mass area ratio is low, water resistance is excellent, can widen application, such as roof waterproof engineering.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation sketch of the present utility model.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, a kind of lightweight GCL comprises face cloth 1 and base fabric 3, is provided with bentonite composite high-water uptake stratum granulosum 2 between described cloth 1 and the base fabric 3.
Described bentonite composite high-water uptake stratum granulosum 2 evenly is fixed between face cloth 1 and the base fabric 3 by needling process.
The bentonite composite high-water uptake grain graininess of described bentonite composite high-water uptake stratum granulosum 2 is 0.2～2mm.
The bentonite composite high-water uptake particle index of described bentonite composite high-water uptake stratum granulosum 2 is as follows: expansion index 〉=40mL/2g, and durability 〉=20mL/2g, filter loss≤15mL, mass area ratio is 2000g/m
2
Described cloth 1 is nonwoven.
Described base fabric 3 is woven cloth.
Described bentonite composite high-water uptake material is to be carrier with the sodium bentonite, with N, the N-methylene-bisacrylamide is that crosslinking agent, ammonium persulfate are that initator, NaOH are that oxidant and sodium thiosulfate are reducing agent, mix by a certain percentage, after fully stirring, under 20 ℃ of room temperatures, carried out polymerisation 20 minutes, be heated to 50 ℃ again and continue reaction, up to obtaining gelatinous polymer, namely obtain the bentonite composite high-water uptake material.This high-absorbent material drying pulverizing is made 0.2～2mm particle and is got final product.
Concrete preparation method, get 1 part of 200 order sodium bentonite in powder (mass parts), ratio according to 1:2 adds distilled water, after fully stirring, add 1 part of 40% acrylamide aqueous solution (mass parts), after fully mixing, add N successively, 0.0002 part of N-methylene-bisacrylamide, 0.005 part of ammonium persulfate, 0.05 part in NaOH, 0.015 part in sodium thiosulfate, after fully mixing, at room temperature carried out polymerisation 20 minutes, be heated to 50 ℃ again and continue reaction, up to obtaining gelatinous polymer, namely obtain the bentonite composite high-water uptake material.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. a lightweight GCL comprises face cloth and base fabric, it is characterized in that: be provided with bentonite composite high-water uptake stratum granulosum between described cloth and the base fabric.
2. a kind of lightweight GCL according to claim 1, it is characterized in that: described bentonite composite high-water uptake stratum granulosum evenly is fixed between nonwoven and the woven cloth by needling process.
3. a kind of lightweight GCL according to claim 1, it is characterized in that: described cloth is nonwoven.
4. a kind of lightweight GCL according to claim 1, it is characterized in that: described base fabric is woven cloth.
5. a kind of lightweight GCL according to claim 1, it is characterized in that: the bentonite composite high-water uptake grain graininess of described bentonite composite high-water uptake stratum granulosum is 0.2～2mm.
6. according to each described a kind of lightweight GCL of claim 1 ~ 5, it is characterized in that: the bentonite composite high-water uptake particle index of described bentonite composite high-water uptake stratum granulosum is as follows: expansion index 〉=40mL/2g, durability 〉=20mL/2g, filter loss≤15mL, mass area ratio is 2000g/m
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320085525 CN203141929U (en) | 2013-02-25 | 2013-02-25 | Light-weight bentonite waterproof blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320085525 CN203141929U (en) | 2013-02-25 | 2013-02-25 | Light-weight bentonite waterproof blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203141929U true CN203141929U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320085525 Expired - Lifetime CN203141929U (en) | 2013-02-25 | 2013-02-25 | Light-weight bentonite waterproof blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203141929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415361A (en) * | 2017-06-07 | 2017-12-01 | 常州市日臣艺术装饰材料有限公司 | A kind of hyposmosis anti-ultraviolet ageing waterproof blanket |
| CN109849449A (en) * | 2019-02-25 | 2019-06-07 | 刘小红 | A kind of bentonite inorganic system pre-treatment type waterproof blanket and preparation method thereof |
-
2013
- 2013-02-25 CN CN 201320085525 patent/CN203141929U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415361A (en) * | 2017-06-07 | 2017-12-01 | 常州市日臣艺术装饰材料有限公司 | A kind of hyposmosis anti-ultraviolet ageing waterproof blanket |
| CN109849449A (en) * | 2019-02-25 | 2019-06-07 | 刘小红 | A kind of bentonite inorganic system pre-treatment type waterproof blanket and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190905 Granted publication date: 20130821 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210128 Granted publication date: 20130821 |
|
| PD01 | Discharge of preservation of patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220216 Address after: No.11, Beishuncheng street, Xizhimen, Xicheng District, Beijing Patentee after: CHINA NATIONAL NONMETALLIC MINERALS INDUSTRIAL Corp. Address before: 100000 floor 17, block 4, Yuhui building, building 37, No. 73 Fucheng Road, Haidian District, Beijing Patentee before: BEIJING BOKE BUILDING CHEMICAL MATERIAL Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
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| CX01 | Expiry of patent term |