CN112976269A - Concrete efficient moisturizing maintenance blanket and production process thereof - Google Patents
Concrete efficient moisturizing maintenance blanket and production process thereof Download PDFInfo
- Publication number
- CN112976269A CN112976269A CN202110175870.2A CN202110175870A CN112976269A CN 112976269 A CN112976269 A CN 112976269A CN 202110175870 A CN202110175870 A CN 202110175870A CN 112976269 A CN112976269 A CN 112976269A
- Authority
- CN
- China
- Prior art keywords
- water
- concrete
- blanket
- moisture
- fiber
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a concrete high-efficiency moisturizing maintenance blanket and a production process thereof. The concrete efficient moisturizing curing blanket has the characteristics of strong water absorption capacity, high repeated use efficiency, easiness in being closely attached to the surface of concrete and the like, and can realize one-time water storage laying of concrete and long-time efficient moisturizing curing. The concrete curing agent can effectively promote the hydration development of concrete, reduce early shrinkage, inhibit microcrack generation, save labor, reduce comprehensive curing cost and improve the curing quality of concrete.
Description
Technical Field
The invention belongs to the technical field of concrete curing, and particularly relates to a concrete efficient moisturizing curing blanket and a production process thereof.
Background
Concrete curing is an important process for ensuring normal hydration and strength development after concrete forming. The concrete needs timely and sufficient moisture preservation and maintenance after the concrete is poured, so that the concrete is prevented from cracking due to the fact that water in the concrete is evaporated too fast, and the cracking of the concrete can be serious under the condition that the moisture preservation and maintenance are not timely enough and sufficient enough. At present, the commonly used concrete curing mode mainly adopts manual watering, covers films, geotextiles or felt cloth and carries out curing by a method of watering repeatedly, thus the frequency of watering and the watering amount can not be ensured to meet the requirement of concrete curing humidity, the waste of a large amount of water resources can not be caused, and the dry-wet circulation on the surface of concrete is easily caused, and the cracking risk is increased.
In order to achieve better moisture-preserving and curing effects of concrete and reduce waste of water resources, water-saving moisture-preserving curing films for concrete (such as CN 200320114090.4, CN 201020137057.3, CN 110195516A, CN 108238813 a, CN 108795309 a and CN 108237617 a) have been studied. However, although the existing concrete moisturizing curing film can achieve the water-saving moisturizing curing effect, the existing concrete moisturizing curing film also has many problems: firstly, the moisturizing and curing film is easy to be affected by wind and rain weather during laying and is easy to be blown up by wind after covering, so that the moisturizing and curing effects are affected; secondly, the moisture-preserving curing film mostly contains high-molecular water-absorbent resin particles (SAP), and is easy to move under the influence of gravity or external force in the construction process, so that the problems of particle scattering, particle aggregation, uneven distribution and the like are easily caused, and the moisture-preserving curing effect and the reusability of concrete are influenced; the production of the moisturizing curing film has higher requirements on equipment, the traditional dusting process is easily influenced by the environment, the dusting quality of the high-molecular water-absorbent resin material is difficult to control in a humid environment, and the moisture-absorbent resin material is easy to agglomerate after being wetted, so that the moisturizing performance and the using effect of the curing film are greatly influenced; the moisture-preserving curing film material has poor strength and toughness and is easy to damage, the bonding strength between layers is easy to be affected by a wet state to cause layering, most of the materials are disposable curing materials, the cost is high, the repeated use rate is low, and the environment is polluted. Therefore, concrete curing materials which are simpler in production process, convenient to lay, more remarkable in moisturizing effect, not easily affected by wind, rain and weather, high in strength, good in toughness and high in repeated use rate need to be developed.
Disclosure of Invention
The novel concrete efficient moisturizing maintenance blanket has the characteristics of strong water absorption capacity, convenience in laying, easiness in being closely attached to the surface of concrete, difficulty in being influenced by weather, high strength, good toughness, high repeated use efficiency and the like, can effectively solve the problems of a conventional moisturizing maintenance film in the production and use processes, greatly improves the moisturizing maintenance effect, effectively reduces shrinkage, reduces cracking, and improves engineering efficiency and engineering quality.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the efficient moisture-keeping concrete curing blanket is characterized by being formed by compounding a black weather-resistant plastic film, a high-water-absorption fiber felt and a water-permeable modified fiber cloth through a moisture-resistant adhesive, wherein the black weather-resistant plastic film is used as a surface layer, the high-water-absorption fiber felt is used as a core layer, and the water-permeable modified fiber cloth is used as a bottom layer.
The black weather-resistant plastic film is a polyethylene and polyethylene terephthalate-based composite material, and the water vapor transmission rate of the black weather-resistant plastic film is less than or equal to 0.05 g/(m)2D), has heat absorption effect, can absorb solar radiation heat, and has oxidation induction time of more than 100 min at 210 ℃.
The high-water-absorption fiber felt is formed by blending polyvinyl alcohol fibers and polyacrylamide, and the water absorption rate of the high-water-absorption fiber felt is 150 times of the self mass.
The water permeable modified fiber cloth is formed by blending polyethylene fibers and polyethylene terephthalate fibers and treating the fiber cloth with a water permeable modifier, has the tensile strength of more than or equal to 25MPa, and has high hydrophilicity and high water permeability.
The permeable modifier is a high-performance multifunctional modifier and is prepared from various high-molecular materials such as polyvinyl alcohol, polyethylene glycol, polyoxyethylene ether and the like under certain process conditions.
The moisture-resistant bonding hot-melt adhesive is one of polyisobutylene, polystyrene-isoprene/butadiene-styrene and polyurethane, has a moisture-resistant bonding effect, and can form high-strength bonding even in a moist environment.
The production process of the concrete high-efficiency moisturizing maintenance blanket mainly comprises the following steps:
a) unreeling the fiber cloth through an unreeling roller, and laying the fiber cloth through an unfolding roller of a device for storing the water-permeable modifier;
b) spraying a moisture-resistant adhesive hot melt adhesive on the surface of the fiber cloth subjected to the permeable modification;
c) pressing the permeable modified fiber cloth sprayed with the hot melt adhesive and the high water absorption fiber felt to form a fiber blanket;
d) spraying a moisture-resistant adhesive hot melt adhesive on the surface of the composite fiber blanket;
e) carrying out compression roller compounding on the glued composite fiber blanket and a black weather-resistant plastic film;
f) and finally, rolling to obtain the concrete high-efficiency moisturizing curing blanket with the three-layer structure.
The invention has the beneficial effects that:
compared with the existing curing materials, the concrete high-efficiency moisture-retention curing blanket has strong water absorption capacity and adhesion capacity, can be closely attached to the surface of concrete after fully absorbing water, can realize more uniform water storage through the high-water-absorption fiber felt, avoids uneven spreading of powder high-molecular water-absorption resin materials due to environmental influence in the production process, avoids the problems of scattering, aggregation and the like of high-molecular water-absorption resin particles in the construction process, avoids the water-absorption particles from adhering to the surface of the concrete and polluting the surface concrete, and can promote the water release of a water storage layer of the fiber felt through absorbing the heat radiation of sunlight by the black weather-resistant plastic film adopted by the high-efficiency moisture-retention curing blanket, thereby creating a better warm and wet environment. The concrete high-efficiency moisturizing curing blanket and the production process thereof provided by the invention can realize a simple and stable production process, and ensure the service performance of curing materials. Moreover, on the basis of saving water resources and labor cost, the use strength and toughness of the maintenance material are improved, the repeated use frequency can reach more than 20 times, the construction cost and the maintenance cost are reduced, and the resource waste is reduced. In addition, the concrete efficient moisturizing and curing blanket is composed of three layers of materials, is large in mass and strong in water storage capacity, is not influenced by wind, rain and weather in the construction process, can realize one-time water storage laying, can preserve 14 days of moisture efficiently, greatly improves the moisturizing and curing effect on concrete, effectively reduces shrinkage, reduces cracking, and improves construction efficiency and engineering quality.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
in the drawings: 1-black weather-resistant plastic film, 2-high water absorption fiber felt, 3-permeable modified fiber cloth and 4-moisture-resistant bonded hot melt adhesive bonding layer.
Detailed Description
The invention will now be described in more detail with reference to the drawings and the detailed description.
As shown in figures 1 and 2, the high-efficiency moisture-keeping curing blanket for concrete and the production process thereof are characterized in that the blanket is formed by compounding a black weather-resistant plastic film 1, a high-water-absorption fiber felt 2 and a water-permeable modified fiber cloth 3 through a moisture-resistant adhesive 4 which is a hot melt adhesive. The black weather-resistant plastic film has high strength, good toughness and low water vapor transmission rate, has a thermal radiation absorption effect, can promote the moisture release of a water storage layer of the fibrofelt, and is favorable for creating a better warm and humid environment. The high water absorption fiber felt 2 is a water storage layer, the water absorption rate of the high water absorption fiber felt is 150 times of the self mass, and more uniform water storage can be realized. The water permeable modified fiber cloth 3 is formed by processing a water permeable modifier, has the tensile strength of more than or equal to 25MPa, and has high hydrophilicity and high water permeability. The moisture-resistant bonding hot melt adhesive 4 has the functions of water resistance and moisture resistance, can realize the bonding with higher strength in a humid environment, and improves the service performance of the concrete high-efficiency moisture-preserving curing blanket.
Example 1:
the concrete efficient moisturizing maintenance blanket is formed by compounding a black weather-resistant plastic film, a high-water-absorption fiber felt and a water-permeable modified fiber cloth through a moisture-resistant bonded hot melt adhesive. The black weather-resistant plastic film is a polyethylene and polyethylene terephthalate-based composite material, and the water vapor transmission rate of the black weather-resistant plastic film is 0.03 g/(m)2D), the oxidation induction time at 210 ℃ is 150 min; the high water absorption fiber felt is a fiber felt formed by blending polyvinyl alcohol fibers and polyacrylamide, and the water absorption rate of the high water absorption fiber felt is 150 times of the mass of the high water absorption fiber felt; the water permeable modified fiber cloth is formed by blending polyethylene fibers and polyethylene terephthalate fibers and processing the fiber cloth by a water permeable modifier, and the tensile strength of the water permeable modified fiber cloth is 30 MPa; the water permeability modifier is a high-performance multifunctional modifier and is prepared from various high polymer materials such as polyvinyl alcohol, polyethylene glycol and the like, a surfactant, an antioxidant and the like under certain process conditions; the moisture-resistant bonding hot-melt adhesive is polyisobutylene, and the adhesive consumption is 200 +/-10 g/m2。
Example 2:
the concrete efficient moisturizing maintenance blanket is formed by compounding a black weather-resistant plastic film, a high-water-absorption fiber felt and a water-permeable modified fiber cloth through a moisture-resistant bonded hot melt adhesive. The black weather-resistant plastic film is polyethylene or poly-p-phenyleneThe ethylene glycol dicarboxylate-based composite material has a water vapor transmission rate of 0.05 g/(m)2D), the oxidation induction time at 210 ℃ is 120 min; the high water absorption fiber felt is a fiber felt formed by blending polyvinyl alcohol fibers and polyacrylamide, and the water absorption rate of the high water absorption fiber felt is 100 times of the mass of the high water absorption fiber felt; the water permeable modified fiber cloth is formed by blending polyethylene fibers and polyethylene terephthalate fibers and processing the fiber cloth by a water permeable modifier, and the tensile strength of the water permeable modified fiber cloth is 30 MPa; the water permeability modifier is a high-performance multifunctional modifier and is prepared from various high polymer materials such as polyvinyl alcohol, polyethylene glycol and the like, a surfactant, an antioxidant and the like under certain process conditions; the moisture-resistant bonding hot-melt adhesive is polyisobutylene, and the adhesive consumption is 200 +/-10 g/m2。
Comparative example 1:
the concrete efficient moisturizing maintenance blanket is formed by compounding a transparent plastic film, a high-water-absorption fiber felt and a water-permeable modified fiber cloth through a moisture-resistant bonded hot melt adhesive. The transparent plastic film is made of polyethylene film material, and the water vapor transmission rate of the transparent plastic film is 20 g/(m)2D), the oxidation induction time at 210 ℃ is 20 min; the high water absorption fiber felt is a fiber felt formed by blending polyvinyl alcohol fibers and polyacrylamide, and the water absorption rate of the high water absorption fiber felt is 150 times of the mass of the high water absorption fiber felt; the water permeable modified fiber cloth is formed by blending polyethylene fibers and polyethylene terephthalate fibers and processing the fiber cloth by a water permeable modifier, and the tensile strength of the water permeable modified fiber cloth is 30 MPa; the water permeability modifier is a high-performance multifunctional modifier and is prepared from various high polymer materials such as polyvinyl alcohol, polyethylene glycol and the like, a surfactant, an antioxidant and the like under certain process conditions; the moisture-resistant bonding hot-melt adhesive is polyisobutylene, and the adhesive consumption is 200 +/-10 g/m2。
Comparative example 2:
the efficient concrete moisturizing and curing blanket is formed by compounding a black weather-resistant plastic film, high-molecular water-absorbent resin particles and permeable modified fiber cloth through a polyvinyl alcohol aqueous adhesive. The black weather-resistant plastic film is a polyethylene and polyethylene terephthalate-based composite material, and the water vapor transmission rate of the black weather-resistant plastic film is 0.05 g/(m)2D), the oxidation induction time at 210 ℃ is 120 min; the water absorption rate of the high-molecular water-absorbent resin particles is 150 times of the mass of the high-molecular water-absorbent resin particles; the water permeable modified fiber cloth is formed by blending polyethylene fibers and polyethylene terephthalate fibers and processing the fiber cloth by a water permeable modifier, and the tensile strength of the water permeable modified fiber cloth is 30 MPa; the water permeable modified fiber cloth is formed by blending polyethylene fibers and polyethylene terephthalate fibers and processing the fiber cloth by a water permeable modifier, and the tensile strength of the water permeable modified fiber cloth is 30 MPa; the water permeability modifier is a high-performance multifunctional modifier and is prepared from various high polymer materials such as polyvinyl alcohol, polyethylene glycol and the like, a surfactant, an antioxidant and the like under certain process conditions; the aqueous adhesive is polyvinyl alcohol, and the using amount is 200 +/-10 g/m2。
Comparative example 3:
the concrete efficient moisturizing maintenance blanket is formed by compounding a black weather-resistant plastic film, a high-water-absorption fiber felt and a conventional geotextile through a moisture-resistant bonded hot melt adhesive. The black weather-resistant plastic film is a polyethylene and polyethylene terephthalate-based composite material, and the water vapor transmission rate of the black weather-resistant plastic film is 0.05 g/(m)2D), the oxidation induction time at 210 ℃ is 120 min; the high water absorption fiber felt is a fiber felt formed by blending polyvinyl alcohol fibers and polyacrylamide, and the water absorption rate of the high water absorption fiber felt is 100 times of the mass of the high water absorption fiber felt; the conventional geotextile is a polyester staple fiber needle-punched geotextile, and the tensile strength of the geotextile is 20 MPa; the moisture-resistant bonding hot-melt adhesive is polyisobutylene, and the adhesive consumption is 200 +/-10 g/m2。
The production process of the concrete high-efficiency moisturizing maintenance blanket mainly comprises the following steps:
a) unreeling the fiber cloth or the geotechnical cloth through the unreeling roller, wherein the specifications of the fiber cloth and the geotechnical cloth are both 120-grade and 150g/m2Wherein, the fiber cloth is laid by passing through an expansion roller of a device for storing the water permeability modifier, and the geotextile is not subjected to water permeability modification treatment;
b) starting the composite equipment and the glue spraying equipment, and spraying the hot melt glue on the surface of the geotextile or the fiber cloth subjected to permeable modification for moisture-resistant bonding, wherein the glue spraying amount is 200 +/-10 g/m2；
c) Setting the composite line pressure to be 500kgf/m, and spraying the geotextile or permeable modified fiber cloth coated with the hot melt adhesive and the surface density to be 100g/m2The high water absorption fiber felt is pressed into a whole by a press roll;
d) spraying hot melt adhesive on the surface of the compounded geotextile or fiber blanket by using adhesive spraying equipment, wherein the adhesive spraying amount is 200 +/-10 g/m2；
e) Setting the composite line pressure to be 500kgf/m, and compounding the glued composite geotextile or fiber blanket with a black weather-resistant plastic film with the thickness of 0.1-0.25mm or a transparent plastic film with the thickness of 0.02-0.08mm by using a press roll;
f) and finally, obtaining the concrete high-efficiency moisturizing maintenance blanket with different three-layer structures through the winding device.
After the same batch of concrete test blocks are poured and molded, the concrete test blocks are placed in the same environment to carry out different curing blanket material covering on the surface of the concrete so as to complete a curing experiment and be repeatedly used, and the following results are obtained:
from the results of example 1 and comparative example 1, it is understood that the surface humidity, curing effect and the number of repeated use of the cured 14d concrete are greatly improved when the black weather-resistant plastic film having good water vapor permeability is used.
From the results of example 1 and comparative example 2, it was found that when the conventional high molecular water absorbent resin particles were compounded with the aqueous adhesive, a large amount of SAP leaked during curing, affecting the moisturizing and curing effect and reducing the number of repeated uses of the curing blanket.
From the results of example 2 and comparative example 3, it can be seen that when the conventional geotextile is used for compounding, the water permeability and permeability are poor, so that the water absorption capacity of the water storage layer material of the maintenance blanket is too low, the water storage capacity of the maintenance blanket is reduced, and the moisturizing and maintenance effects are reduced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several improvements and modifications can be made without departing from the structure and principle of the present invention, or other materials can be substituted for the fiber felt or fiber cloth, etc., and these alternatives, improvements and modifications should be construed as being within the protection scope of the present invention.
Claims (7)
1. The efficient moisture-keeping curing blanket for concrete is characterized by being formed by compounding a black weather-resistant plastic film, a high-water-absorption fiber felt and a water-permeable modified fiber cloth through a moisture-resistant bonded hot melt adhesive, wherein the black weather-resistant plastic film is used as a surface layer, the high-water-absorption fiber felt is used as a core layer, and the water-permeable modified fiber cloth is used as a bottom layer.
2. The concrete high-efficiency moisture-keeping curing blanket and the production process thereof as claimed in claim 1, wherein the black weather-resistant plastic film is a polyethylene and polyethylene terephthalate based composite material, and the water vapor transmission rate is less than or equal to 0.05 g/(m)2D), has heat absorption effect, can absorb solar radiation heat, and has oxidation induction time of more than 100 min at 210 ℃.
3. The blanket as claimed in claim 1, wherein the high water absorption fiber felt is a fiber felt formed by blending polyvinyl alcohol fiber and polyacrylamide, and the water absorption rate is 100-150 times of the self-mass.
4. The high-efficiency moisture-retention curing blanket for concrete and the production process thereof as claimed in claim 1, wherein the water-permeable modified fiber cloth is obtained by blending polyethylene fiber and polyethylene terephthalate fiber and treating the fiber cloth with a water-permeable modifier, and the water-permeable modified fiber cloth has a tensile strength of not less than 25MPa, and has high hydrophilicity and high water permeability.
5. The blanket as claimed in claim 4, wherein the water permeability modifier is a high-performance multifunctional modifier prepared from polyvinyl alcohol, polyethylene glycol, polyoxyethylene ethers, and other high molecular materials under certain process conditions.
6. The blanket as claimed in claim 1, wherein the moisture-resistant hot-melt adhesive is one of polyisobutylene, polystyrene-isoprene/butadiene-styrene, and polyurethane, has moisture-resistant adhesion effect, and can form high-strength adhesion in a humid environment.
7. The concrete high-efficiency moisture-preserving curing blanket and the production process thereof as claimed in claim 1, wherein the production process of the concrete high-efficiency moisture-preserving curing blanket mainly comprises the following steps:
a) unreeling the fiber cloth through an unreeling roller, and laying the fiber cloth through an unfolding roller of a device for storing the water-permeable modifier;
b) spraying a moisture-resistant adhesive hot melt adhesive on the surface of the fiber cloth subjected to the permeable modification;
c) pressing the permeable modified fiber cloth sprayed with the hot melt adhesive and the high water absorption fiber felt to form a fiber blanket;
d) spraying a moisture-resistant adhesive hot melt adhesive on the surface of the composite fiber blanket;
e) carrying out compression roller compounding on the glued composite fiber blanket and a black weather-resistant plastic film;
f) and finally, rolling to obtain the concrete high-efficiency moisturizing curing blanket with the three-layer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110175870.2A CN112976269A (en) | 2021-02-07 | 2021-02-07 | Concrete efficient moisturizing maintenance blanket and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110175870.2A CN112976269A (en) | 2021-02-07 | 2021-02-07 | Concrete efficient moisturizing maintenance blanket and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112976269A true CN112976269A (en) | 2021-06-18 |
Family
ID=76392471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110175870.2A Pending CN112976269A (en) | 2021-02-07 | 2021-02-07 | Concrete efficient moisturizing maintenance blanket and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112976269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684743A (en) * | 2021-09-13 | 2021-11-23 | 北方工业大学 | Self-moisture-retaining concrete curing film and preparation and laying methods thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661036A (en) * | 2012-05-15 | 2012-09-12 | 江苏博特新材料有限公司 | Permeable formwork liner and preparation method thereof |
| CN104024517A (en) * | 2011-11-02 | 2014-09-03 | 旭化成纤维株式会社 | Permeable nonwoven fabric |
| CN205529357U (en) * | 2016-01-29 | 2016-08-31 | 金华天晟合纤科技有限公司 | Super hydroscopicity water thorn non -woven fabrics |
| CN106739343A (en) * | 2016-11-30 | 2017-05-31 | 陕西高新实业有限公司 | A kind of preparation method of concrete water-saving moist keeping maintenance film |
| CN108103670A (en) * | 2016-11-22 | 2018-06-01 | 成都善水天下科技有限公司 | A kind of manufacturing method of Breathable nonwoven |
| CN109605868A (en) * | 2018-12-29 | 2019-04-12 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of compound curing film of concrete high-efficiency heat and moisture preserving with photothermal conversion effect |
-
2021
- 2021-02-07 CN CN202110175870.2A patent/CN112976269A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104024517A (en) * | 2011-11-02 | 2014-09-03 | 旭化成纤维株式会社 | Permeable nonwoven fabric |
| CN102661036A (en) * | 2012-05-15 | 2012-09-12 | 江苏博特新材料有限公司 | Permeable formwork liner and preparation method thereof |
| CN205529357U (en) * | 2016-01-29 | 2016-08-31 | 金华天晟合纤科技有限公司 | Super hydroscopicity water thorn non -woven fabrics |
| CN108103670A (en) * | 2016-11-22 | 2018-06-01 | 成都善水天下科技有限公司 | A kind of manufacturing method of Breathable nonwoven |
| CN106739343A (en) * | 2016-11-30 | 2017-05-31 | 陕西高新实业有限公司 | A kind of preparation method of concrete water-saving moist keeping maintenance film |
| CN109605868A (en) * | 2018-12-29 | 2019-04-12 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of compound curing film of concrete high-efficiency heat and moisture preserving with photothermal conversion effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684743A (en) * | 2021-09-13 | 2021-11-23 | 北方工业大学 | Self-moisture-retaining concrete curing film and preparation and laying methods thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206855716U (en) | Concrete water-saving moist keeping maintenance film | |
| CN108238752B (en) | Heat storage concrete based on super absorbent resin and preparation method thereof | |
| CN201677393U (en) | Combined type concrete water saving moist curing membrane | |
| CN109605868B (en) | Concrete efficient heat-preservation and moisture-preservation composite curing film with photo-thermal conversion effect | |
| US20080258341A1 (en) | Lightweight single-use concrete curing system | |
| RU2265700C2 (en) | Insulation article production method and insulation article produced of mineral fiber | |
| CN107086311B (en) | Utilize the method for graphene carbon cellulose fiber conductive paper production fuel cell porous diffusion layer electrode plate | |
| CN112976269A (en) | Concrete efficient moisturizing maintenance blanket and production process thereof | |
| KR101898871B1 (en) | Sound Absorbing Panel and manufacturing method thereof | |
| CN110195516B (en) | Three-dimensional concrete heat preservation elasticity composite maintenance membrane of moisturizing | |
| CN201784030U (en) | Water-saving and moisture conservation concrete curing membrane modified through grafting | |
| CN203449453U (en) | Concrete moisture preserving and heat accumulation maintenance membrane | |
| CN115010411B (en) | Heat storage building block and preparation method and application thereof | |
| CN101545235A (en) | Composite fiber roadbed thin felt | |
| CN108795309A (en) | A kind of railway cast-in-place concrete heat and moisture preserving curing film | |
| CN201709187U (en) | Greenhouse heat insulating covering | |
| CN108582443A (en) | A kind of concrete product intelligent water-saving moisturizing and curing membrane | |
| CN113684743A (en) | Self-moisture-retaining concrete curing film and preparation and laying methods thereof | |
| CN107620391A (en) | A kind of water-proof air-permeable composite of 3D structures in intelligent water steam flow road and preparation method thereof | |
| CN205475777U (en) | Novel combination formula wall body insulation material | |
| CN206510515U (en) | A kind of compound moisturizing and curing membrane of the easy demoulding of anti-stick | |
| CN106747646A (en) | A kind of compound moisturizing and curing membrane of the easy demoulding of anti-stick | |
| CN108237745A (en) | A kind of efficient moisture-retention curing means | |
| CN207331672U (en) | The device of mud moisture content is reduced using wick principle | |
| CN206189232U (en) | Water permeable pavement structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210618 |