CN212446614U - Composite waterproof coiled material - Google Patents
Composite waterproof coiled material Download PDFInfo
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- CN212446614U CN212446614U CN201821741843.7U CN201821741843U CN212446614U CN 212446614 U CN212446614 U CN 212446614U CN 201821741843 U CN201821741843 U CN 201821741843U CN 212446614 U CN212446614 U CN 212446614U
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Abstract
The utility model belongs to the technical field of waterproofing membrane, a compound waterproofing membrane is disclosed. The composite waterproof roll comprises a waterproof layer, a polymer bentonite layer, a polyvinyl chloride waterproof layer and an adhesive layer which are sequentially overlapped from top to bottom, wherein the polyvinyl chloride waterproof layer is provided with a plurality of grooves, and cement-based capillary crystalline waterproof materials are filled in the grooves; the adhesive layer is provided with a pore passage in a penetrating way, and the pore passage is communicated with the groove. The utility model discloses a compound waterproofing membrane, polymer bentonite layer can heal up the damaged point that its upper waterproof layer produced automatically, keep waterproofing membrane's integrality throughout, also form the protection protective screen to each layer material below simultaneously, crack and capillary hole in cement base infiltration crystallization type waterproof material can the self-healing concrete, polymer bentonite layer cooperatees with cement base infiltration crystallization type waterproof material, self-healing waterproof surface layer deep layer is waterproof on the one hand, the concrete crack is self-healing to the other party, by the surface and the common waterproof seepage prevention ability who realizes the concrete in.
Description
Technical Field
The utility model belongs to the technical field of waterproofing membrane, in particular to compound waterproofing membrane.
Background
Cracks are generated in the concrete in the construction process or under the condition of incomplete maintenance, water easily permeates into the concrete due to the reasons, calcium hydroxide in the concrete is dissolved and lost, a passive film of hydrogen hydroxide on the surface of a steel bar is damaged, the steel bar is easy to corrode and rust, the expansion stress generated by rust can crack the surrounding concrete, the invasion of water and a corrosive medium is further increased, and the safety performance of a concrete structure is influenced; moreover, the infiltrated water can react with the active harmful minerals of the coarse and fine aggregates in the concrete to generate expansion stress, thereby further shortening the service life of the building.
Therefore, how to improve the waterproof performance of concrete has been the focus of social attention and research. The utility model discloses a chinese utility model patent that publication number is CN 202989770U discloses a self-adhesion polyvinyl chloride waterproofing membrane, and this waterproofing membrane includes polyvinyl chloride basic unit, and polyvinyl chloride basic unit's two surfaces are equipped with respectively from the viscose layer, and the another side from the viscose layer is equipped with the isolation layer, can reach self-adhesion waterproof protection integration, realizes the one deck coiled material, and the twice is set up defences. However, the waterproof roll material only depends on the polyvinyl chloride polymer waterproof layer in the waterproof roll material to block moisture, the polymer waterproof roll material is easy to age along with the lapse of service time, the roll material is easy to damage due to sharp objects such as coarse sand, glass and the like, the waterproof performance is reduced, cracks in concrete cannot be self-repaired, the generated cracks can only be repaired and constructed again through manpower, and the underground or hidden positions cannot be repaired manually at all, so that a large amount of manpower and material resources are wasted.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a composite waterproof coiled material, this composite waterproof coiled material has the ability of self-healing damaged point, and can the crack in the selfreparing concrete.
In order to achieve the above object, the technical solution adopted by the present invention is to provide a composite waterproof roll, which comprises a waterproof layer, a polymer bentonite layer, a polyvinyl chloride waterproof layer and an adhesive layer, which are sequentially stacked from top to bottom, wherein the polyvinyl chloride waterproof layer is provided with a plurality of grooves, and the grooves are filled with a cement-based capillary crystalline waterproof material; the adhesive layer is provided with a pore passage in a penetrating manner, and the pore passage is communicated with the groove.
Preferably, the grooves comprise first grooves distributed on the upper surface of the polyvinyl chloride waterproof layer and second grooves distributed on the lower surface of the polyvinyl chloride waterproof layer, and the second grooves are communicated with the first grooves and the pore passages.
Preferably, the polymeric bentonite layer is an acrylic polymer/bentonite.
Preferably, the waterproof layer is provided with an insulating layer on the upper side.
Preferably, the heat-insulating layer is a rigid foam polyurethane layer.
Preferably, the waterproof layer is a ternary polypropylene rubber layer or a chlorinated polyethylene layer.
Preferably, a reinforcing layer is arranged between the polymer bentonite layer and the polyvinyl chloride waterproof layer and between the polyvinyl chloride waterproof layer and the adhesive layer.
Preferably, the adhesive layer is a butyl rubber hot melt adhesive layer.
Preferably, the adhesive layer is provided with a separation film on the lower side.
The utility model discloses following beneficial effect has been gained:
1. the utility model discloses a compound waterproofing membrane, polymer bentonite layer can heal up the damaged point that the waterproof layer produced on it automatically, keep waterproofing membrane's integrality all the time, also form the protection protective screen to each layer material below simultaneously, can self-heal crack and capillary hole in the concrete in the cement base infiltration crystallization type waterproof material, polymer bentonite layer and cement base infiltration crystallization type waterproof material cooperate, self-heal waterproof surface layer deep waterproof on the one hand, self-heal concrete crack on the other hand, from the surface to the interior waterproof seepage-proofing ability that realizes the concrete jointly;
2. the utility model discloses a compound waterproofing membrane, acrylic acid polymer/bentonite have high water swelling nature and sodium base steadiness, because the charge effect, after hydrated bentonite surface sodium base adsorbs a certain amount of hydrone, the bentonite forms the gel, the damaged point of coiled material itself is filled automatically to acrylic acid polymer has high moisturizing characteristic in the acrylic acid polymer/bentonite, can guarantee that bentonite hydration is complete and difficult for the dehydration, stability reinforcing; the acrylic polymer/bentonite has salt resistance, can improve the salt resistance of the coiled material, and enlarges the application range of the coiled material; moreover, as the bentonite is taken from natural ore soil, the aging phenomenon can not occur, and the permanent water resistance can be achieved;
3. the utility model discloses a compound waterproofing membrane contains active chemical substance in the cement base infiltration crystalline form waterproof material, when the moisture was entered into, active chemical substance used water to permeate the inside hole of concrete as the carrier, corroded the concrete inner structure, interacted with the free calcium oxide in the concrete, formed infiltration crystal calcium sulphoaluminate 3 CaO. Al2O3·CaSO4·32H2O, precipitating into concrete pores, filling cracks and capillary pores in the concrete and playing a role in self-healing the cracks;
4. the utility model discloses a composite waterproof coiled material, cement base infiltration crystallization type waterproof material are a rigid material, and its surface lacks viscidity, and other coatings coat and have the phenomenon of gluing insecure, having the hole on its surface easily, the utility model discloses a between polymer bentonite layer and the polyvinyl chloride waterproof layer, can be good between polyvinyl chloride waterproof layer and the adhesive layer glue glutinous, cement base infiltration crystallization type waterproof material fills in the recess of polyvinyl chloride waterproof layer, seals cement base infiltration crystallization type waterproof material in the recess of polyvinyl chloride waterproof layer through the adhesion of polymer bentonite layer and polyvinyl chloride waterproof layer, polyvinyl chloride waterproof layer and adhesive layer, has avoided cement base infiltration crystallization type waterproof material and other interlaminar materials to glue the phenomenon of insecure;
5. the utility model discloses a compound waterproofing membrane, cement base capillary crystalline type waterproof material can not use under frost freezes or the environment that freezes, and low temperature environment can influence cement base capillary crystalline type waterproof material's hydration degree, reaction rate to can reduce the quality of cured coating, make its selfreparing effect of performance that the material can not be good, the utility model discloses a compound waterproofing membrane's top layer is provided with the heat preservation, guarantees cement base capillary crystalline type waterproof material's operating temperature, is applicable to multiple ambient temperature.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the sectional structure of the composite waterproof roll of the present invention.
In the figure, 1, an insulating layer; 2. a waterproof layer; 3. a polymer bentonite layer; 4. a polyvinyl chloride waterproof layer; 41. a groove; 411. a first groove; 412. a second groove; 42. a cement-based capillary crystalline waterproof material; 5. an adhesive layer; 51. a duct; 6. an isolation film; 7. an enhancement layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, the composite waterproof roll of the present invention comprises a waterproof layer 2, a polymer bentonite layer 3, a polyvinyl chloride waterproof layer 4 and an adhesive layer 5, which are sequentially stacked from top to bottom, wherein the polyvinyl chloride waterproof layer 4 is provided with a plurality of grooves 41, and the grooves 41 are filled with a cement-based capillary crystalline waterproof material 42; the adhesive layer 5 is provided with a hole 51 through the adhesive layer, and the hole 51 is communicated with the groove 41. The polymer bentonite is in a lamellar structure, the surfaces of the layers have negative charges, sodium ions are adsorbed on the surface of each layer under the action of the charges, the sodium ions adsorb water molecules, and the water molecules are filled between the layers, so that the lamellar is separated. When water enters through the damaged points on the surface of the composite waterproof coiled material, sodium groups on the surface of the bentonite absorb a certain amount of water molecules to form gel, so that a beneficial waterproof layer is formed, and meanwhile, the damaged points of the coiled material are automatically filled, so that the self-healing of the coiled material is realized; when water enters through the cracks of the concrete through the pore channels 51 of the adhesive layer 5 or through the breakage points of the coiled material, active chemical substances contained in the cement-based permeable crystalline waterproof material 42 permeate into the pores inside the concrete by taking water as a carrier to corrode the inside of the concrete structure, free calcium oxide in the concrete interacts with the active substances to form a permeable crystal calcium sulphoaluminate 3 CaO. Al2O3·CaSO4·32H2And O, the crystal is insoluble in water and can be precipitated into concrete pores to fill cracks and capillary pores in the concrete and play a role in self-healing the cracks. In addition, because the hydration reaction of cement in concrete belongs to incomplete reaction, the waterproof material can resist seepage for many times, as long as the interior of the structure does not lose water, the reaction can be carried out for a long time, crystal can be generated all the time, and even if water penetrates through the composite waterproof coiled material, the waterproof material still has self-healing capability.
The utility model discloses a cement base infiltration crystallization type waterproof material 42 passes through polymer bentonite layer 3 and polyvinyl chloride waterproof layer 4, polyvinyl chloride waterproof layer 4 and the gluing of adhesive layer 5 is glutinous to be fixed in polyvinyl chloride waterproof layer 4, has avoided appearing gluing glutinous not firm phenomenon because of cement base infiltration crystalline material is rigid material. In addition, the grooves 41 include first grooves 411 distributed on the upper surface of the pvc waterproof layer 4 and second grooves 412 distributed on the lower surface of the pvc waterproof layer 4, and the second grooves 412 are communicated with the first grooves 411, so that the cement-based permeable crystalline waterproof material 42 in the second grooves 412 is communicated with the cement-based permeable crystalline waterproof material 42 in the first grooves 411, and the second grooves 412 are also communicated with the duct 51. When water enters through the gap of the concrete through the pore passage 51, the water can enter the first groove 411 through the second groove 412, and simultaneously, the active chemical components of the cement-based permeable crystalline waterproof material 42 in the first groove 411 can enter the gap of the concrete along with the water through the second groove 412, so that the subsequent self-repairing work can be carried out.
The polymer bentonite layer 3 of the utility model is acrylic polymer/bentonite. The acrylic polymer/bentonite is prepared by adopting an aqueous solution polymerization method. Acrylic acid monomer enters into the bentonite layers and then undergoes polymerization reaction, so that the water absorption expansibility of the bentonite is increased, and the stability of sodium ions is enhanced by combining with the sodium ions between the bentonite layers; meanwhile, the acrylic polymer has a high moisture retention type, can ensure complete hydration of the bentonite, is not easy to dehydrate, and has enhanced stability.
The waterproof layer 2 is a ternary polypropylene rubber layer or a chlorinated polyethylene layer. The ternary polypropylene rubber layer and the chlorinated polyethylene layer are elastic waterproof layers, have excellent waterproof permeability, toughness and tensile resistance, can buffer the roll material from impact force while realizing the waterproof surface of the roll material, and protect the inner layer material.
Referring to fig. 1 again, the insulating layer 1 is disposed on the upper side of the waterproof layer 2, and the insulating layer 1 is made of hard foam polyurethane. The hard foam polyurethane may be applied to the upper surface of the waterproof layer 2 by spraying. The cement-based permeable crystalline waterproof material 42 cannot be used in frost or icing environment, the hydration degree and the reaction speed of the cement-based permeable crystalline waterproof material 42 can be influenced in low-temperature environment, and the quality of a cured coating can be reduced, so that the material cannot well play a self-repairing role. The setting of heat preservation 1 has guaranteed the operating temperature of cement base infiltration crystallization type waterproof material 42, makes the utility model discloses a compound waterproofing membrane is applicable to multiple ambient temperature.
Referring to fig. 1, the polymer bentonite layer 3 and the pvc waterproof layer 4, and the pvc waterproof layer 4 and the adhesive layer 5 of the present invention are provided with the reinforcing layer 7. In the present embodiment, the reinforcing layer 7 is a polypropylene filament nonwoven reinforcing layer. Of course, in other embodiments, the reinforcing layer 7 may also be a polyester filament geotextile layer. The arrangement of the reinforcing layer 7 can effectively enhance the tensile strength and the tearing resistance of the waterproof roll.
The adhesive layer 5 is a butyl rubber hot melt adhesive layer. The butyl rubber hot melt adhesive has good cohesiveness and good melt fluidity, can be better attached to the polyvinyl chloride waterproof layer 4, and better seals the cement-based permeable crystalline waterproof material 42 in the groove 41. And the butyl rubber hot melt adhesive also has certain toughness, and the butyl rubber hot melt adhesive and the waterproof layer 2 are cooperated to enhance the impact resistance of the coiled material, so that the inner layer material is better protected, and the integral impact resistance and tensile property of the material are improved. The lower surface of the adhesive layer 5 is provided with a separation film 6. The isolation film 6 can be selected from one of a silicone oil aluminum film, a PE isolation film or a PET isolation film. During site operation, the isolating film 6 is torn off from the composite waterproof roll, the composite waterproof roll can be paved and attached to the base layer after finishing, and construction is convenient and rapid.
It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a compound waterproofing membrane which characterized in that: the waterproof layer comprises a waterproof layer (2), a polymer bentonite layer (3), a polyvinyl chloride waterproof layer (4) and an adhesive layer (5) which are sequentially overlapped from top to bottom, wherein the polyvinyl chloride waterproof layer (4) is provided with a plurality of grooves (41), and the grooves (41) are filled with a cement-based capillary crystalline waterproof material (42); the adhesive layer (5) is provided with a pore passage (51) in a penetrating mode, the pore passage (51) is communicated with the grooves (41), the grooves (41) comprise first grooves (411) distributed on the upper surface of the polyvinyl chloride waterproof layer (4) and second grooves (412) distributed on the lower surface of the polyvinyl chloride waterproof layer (4), and the second grooves (412) are communicated with the first grooves (411) and the pore passage (51).
2. The composite waterproof roll material according to claim 1, wherein: the polymer bentonite layer (3) is an acrylic polymer/bentonite layer.
3. The composite waterproof roll material according to claim 1, wherein: and the upper side of the waterproof layer (2) is provided with a heat-insulating layer (1).
4. A composite water-proof roll material according to claim 3, characterized in that: the heat-insulating layer (1) is a rigid foam polyurethane layer.
5. The composite waterproof roll material according to claim 1, wherein: the waterproof layer (2) is a ternary propylene rubber layer or a chlorinated polyethylene layer.
6. The composite waterproof roll material according to claim 1, wherein: and reinforcing layers (7) are arranged between the polymer bentonite layer (3) and the polyvinyl chloride waterproof layer (4) and between the polyvinyl chloride waterproof layer (4) and the adhesive layer (5).
7. The composite waterproof roll material according to claim 1, wherein: the adhesive layer (5) is a butyl rubber hot-melt adhesive layer.
8. The composite waterproof roll material according to claim 7, wherein: and an isolating film (6) is arranged on the lower side of the adhesive layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741843.7U CN212446614U (en) | 2018-10-25 | 2018-10-25 | Composite waterproof coiled material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741843.7U CN212446614U (en) | 2018-10-25 | 2018-10-25 | Composite waterproof coiled material |
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| CN212446614U true CN212446614U (en) | 2021-02-02 |
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| CN201821741843.7U Active CN212446614U (en) | 2018-10-25 | 2018-10-25 | Composite waterproof coiled material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900651A (en) * | 2021-04-02 | 2021-06-04 | 广东博智林机器人有限公司 | Multilayer composite waterproof coiled material and preparation method thereof |
| CN113682028A (en) * | 2021-07-01 | 2021-11-23 | 翟义恒 | Preparation method of laminated sandwich type building composite waterproof roll |
-
2018
- 2018-10-25 CN CN201821741843.7U patent/CN212446614U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900651A (en) * | 2021-04-02 | 2021-06-04 | 广东博智林机器人有限公司 | Multilayer composite waterproof coiled material and preparation method thereof |
| CN113682028A (en) * | 2021-07-01 | 2021-11-23 | 翟义恒 | Preparation method of laminated sandwich type building composite waterproof roll |
| CN113682028B (en) * | 2021-07-01 | 2024-02-02 | 北京国电盛通电力工程有限公司 | Preparation method of laminated sandwich type building composite waterproof coiled material |
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Denomination of utility model: A composite waterproof roll material Effective date of registration: 20230927 Granted publication date: 20210202 Pledgee: Bank of China Limited Xiangyang Branch Pledgor: HUBEI JOYOUNG WATERPROOFING MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980059545 |