CN203527998U - Pre-laid waterproof roll with abrasive surface - Google Patents
Pre-laid waterproof roll with abrasive surface Download PDFInfo
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- CN203527998U CN203527998U CN201320384916.2U CN201320384916U CN203527998U CN 203527998 U CN203527998 U CN 203527998U CN 201320384916 U CN201320384916 U CN 201320384916U CN 203527998 U CN203527998 U CN 203527998U
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Abstract
The utility model discloses a pre-laid waterproof roll with an abrasive surface. The pre-laid waterproof roll comprises a glue layer, wherein at least one side surface of the glue layer is provided with an abrasive surface layer. The pre-laid waterproof roll disclosed by the utility model has the advantages that since the abrasive surface is arranged on the surface of the glue layer of the waterproof roll, when the waterproof roll is constructed by adopting a pre-laid anti-sticking method, the glue can be prevented from sticking the feet without need of spreading cement powder on the surface of the glue layer, and simultaneously the abrasive surface layer covering the surface of the glue layer also can prevent the glue layer and the waterproof roll from being influenced by natural factors such as illumination and temperature to generate the ageing phenomenon, so that the normal use of the waterproof roll is guaranteed and the service life of the waterproof roll is prolonged.
Description
Technical field
The utility model relates to technical field of buildings, relates in particular to a kind of waterproof roll that overlays with sand face.
Background technology
The waterproof roll of China comprises asphaltic base coiled material and macromolecule coiled material at present.Asphaltic base coiled material construction method has: wet spread, overlay, self-adhesion, hot melt and empty paving, the construction method of macromolecule coiled material has: empty paving, machinery are fixed and is gluing.
Wherein, it is commonplace that the construction method of hot melt is used, but basal plane is had relatively high expectations during construction, and have the problems such as the wasting of resources, potential safety hazard; Empty paving is used more rare, is mainly applicable to the engineering project that waterproof rank is lower; The form of construction work of self-adhesion is more serious owing to affected by objective environment, substantially by wet paving and overlay substitute; Overlay the construction at pre-installed and inverted adhered positions such as being mainly applicable to base plate and tunnel, due to its simple constructing operation and high waterproof reliability, the comparison of the growth was fast in recent years; Wet paving is mainly used at side wall, top board and roofing; Machinery is fixing due to its high cost, Operating Complexity and personnel are required high, only in some extremely important engineerings, uses; Making the method sticking with glue is mainly to use solvent type adhesive, seriously polluted, seldom uses.
Overlay and the paving of wetting be on market, widely promote, popular construction method.For example, the asphalt adhesive bed of material of pitch base class coiled material waterproof roll when basement bottom board adopts pre-laid method construction upward, after having overlay, coiled material should first tear the barrier film of coiled material surface, owing to also will carrying out the follow-up work such as assembling reinforcement on waterproof roll, so conventionally will sprinkle cement flour on the asphalt adhesive bed of material, as isolation, prevent sticky pin.Also there is a problem in when construction in pitch base class waterproof roll in addition: due to the area of basement now several ten thousand tens0000 square meters even easily, the run duration such as follow-up assembling reinforcement after coiled material has overlay are longer, thereby waterproof roll is inevitably exposed in air for a long time, under the effect of the natural conditions such as wind and rain, temperature, ultraviolet ray, may there is a series of physics and chemical change in coiled material itself, as evaporation, dehydrogenation, condensation, oxidation etc.Now in pitch except oxygen-containing functional group increases, other chemical composition also changes, and finally makes the pitch cracking that becomes fragile gradually, can not continue to bring into play its original bonding or sealing function.And aging due to pitch, thereby cause the variation of physics-mechanical property.For example needle penetration diminishes, ductility reduction, softening point and brittle point raise, thereby shows as pitch hardening, becomes fragile, extensibility reduces and cause producing crack, the destruction such as loose.
High score subclass waterproof roll also has good market prospects as PVC, TPO etc. rely on its excellent physical property.For large-sized workshop, stadiums, public utility etc., need exposed conveying appliance roofing especially, or the position such as the plantation top board of beautifying the environment, planted roof, high score subclass waterproof roll highlights its advantage.But high score subclass waterproof roll is used in the impact that exposes or be subject to during the position such as plantation the various factors such as light, heat, ozone, acid, alkali, microorganism, time one is long, can there are crosslinked and two kinds of chemical reactions of degraded, aging phenomenon namely, degraded causes that Polymers Phase is to decrease in molecular weight, and then cause its mechanical performance and electrical property to reduce, and may occur being clamminess and powder phenomenon-tion, crosslinked cause that Polymer Molecular Weight increases, along with increasing of intermolecular cross-linking, form gradually network structure, polymer becomes hard, crisp, insoluble, not molten product.
Utility model content
The purpose of this utility model is to solve the problems of the technologies described above, and a kind of waterproof roll that overlays with sand face is provided: at surface recombination one deck sand surface layer of sizing material layer.The waterproof roll of this version sand surface layer that sizing material layer covers when adopting pre-laid method construction can be used as separation layer on the one hand; when construction, avoid sticky pin; can protect well waterproof roll on the other hand; prevent from being subject to after sizing material layer and waterproof roll are exposed in air for a long time the impact of the natural conditions such as temperature, ultraviolet ray and generating material performance degradation, thereby affect waterproof effect.
For reaching this object, the utility model by the following technical solutions:
The waterproof roll that overlays with sand face, comprises sizing material layer, and at least one side of described sizing material layer is provided with sand surface layer.
As a kind of preferred version that overlays waterproof roll with sand face, described sizing material layer inside and/or surface recombination have substrate layer.
As a kind of preferred version that overlays waterproof roll with sand face, described sizing material layer inside and/or surface recombination have the protective layer of enhancing and/or buffer action.
Wherein, rise to strengthen and the protective layer of buffer action can be selected from nonwoven, HDPE, LDPE, polyethylene polypropylene, geotextiles, polyalcohol cement basis one or more mixtures in filming, the material that can play corresponding enhancing and isolation effect that other those skilled in the art can be known all can be used for the utility model.HDPE can strengthen the intensity of coiled material.
Play the mixture of a kind of in the optional autopolyester nonwoven of protective layer, polyester graticule cloth, glass nonwoven, glass fiber reticular cloth or other reinforcing material of humidification or at least two kinds; the material that can play corresponding enhancing effect that often use other this area all can be used for the utility model, and the design of reinforcing material can make installation of membrane more smooth straight.
Play the optional self-isolation film of protective layer or barrier paper or the powdered substance of buffer action.All kinds of barrier films that play buffer action that those skilled in the art can be known or barrier paper or powdered substance all can be used for the utility model, as PE film, PET film etc.PE is the simplest macromolecular organic compound of structure; current most widely used macromolecular material; it is base material that PE film be take Special polyethylene (PE) plastic sheeting; according to the difference of density, be divided into high density polyethylene (HDPE), medium density polyethylene and low density polyethylene (LDPE); the advantage of PE film maximum is that protected product is not contaminated in production and processing, transportation, storage and use procedure, and corrosion scratches; protect original bright and clean glossy surface, thereby improve quality and the market competitiveness of product.PET film has excellent physical property, chemical property and dimensional stability, the transparency, recuperability, can be widely used in the fields such as magnetic recording, photosensitive material, electronics, electric insulation, industrial film, package decoration, PET film also has good heat-resisting, cold resistance and good chemical proofing and oil resistivity, and PET film also can play the effect that reduces coiled material distortion when playing buffer action.
As a kind of preferred version that overlays waterproof roll with sand face, described sizing material layer inside and/or surface recombination have carcass reinforcing material.Described carcass reinforcing material adopts metal material and/or nonmetallic materials.
Waterproof roll can be compounded with enhancing carcass material, also can be not containing strengthening carcass material.Carcass reinforcing material mainly contains polyester felt, Chopped Strand Mat, glass fiber reticular cloth, cotton composite fibre nonwoven and other kinds carcass reinforcing material, and its Main Function is the tensile strength that keeps the dimensional stability of coiled material and improve coiled material.
As a kind of preferred version that overlays waterproof roll with sand face, described substrate layer adopts the lamination layer structure of any or two kinds in polymer membranes, pitch base class waterproof roll.The material of other waterproof roll that those skilled in the art can be known is all applicable to the utility model.
Wherein, polymer membranes is selected from TPO, PVC, HDPE, EVA, EPDM, ECB, PE coiled material, polyethylene polypropylene fiber waterproof coiled material and other macromolecular material.Other polymer membranes that those skilled in the art can be known all can be used for implementing the utility model.PVC PVC waterproof roll is to take Corvic as main component, by adding other chemical assistant, and the synthetic high polymer waterproof material that employing is extruded or rolling process production technology processes.The existing very high toughness of PVC waterproof roll has again very large intensity, have anti-oxidant preferably, uvioresistant, high temperature resistant, corrosion-resistant, the performance such as anti-puncture ability is strong, purposes is very extensive.And the raw material sources of producing PVC are abundant, after adding other auxiliary material, can add a large amount of modified fillers, can greatly reduce its price.Moreover PVC waterproof roll easily welds, its mutual lap-joint can be with welding gun or welding machine hot weld.TPO is thermoplastic polyolefin waterproof roll, be TPO (TPO) synthetic resin that adopts advanced polymerization technique that EP rubbers and polypropylene are combined be base-material, the new type waterproof coiled material that adds antioxidant, age resistor, softening agent to make, can do inner reinforcing material with polyester fiber grid cloth and make enhancement type water-proof coiled material, belong to synthetic polymeric waterproofing material class waterproof product.TPO combines the feature performance benefit of EPDM and PVC, have the former weather-proof ability, low-temperature tenderness and the latter can welding characteristic.This material is different from traditional plastics, at normal temperature, demonstrates rubber high resiliency, at high temperature again can moulding as plastics.Therefore, this material has good processing characteristics and mechanical property, and has high-strength soldering performance.And add after one deck dacron fabric in the middle of two-layer TPO material, can strengthen its physical property, improve its fracture strength, antifatigue, anti-puncture ability.
Pitch base class waterproof roll mainly contains modified asphalt waterproof coiled material and self-adhesion class waterproof roll.Modified asphalt waterproof coiled material is to be cited as dipping cover layer with SBS modified rubber asphalt, with polyester fiber non-woven fabric, gunny cloth, Chopped Strand Mat philosophy, be made as tire base, take plastic sheeting as antiseized separation layer, through selection, batching, congruent melting, dipping, composite molding, the operation processing and fabricating such as curling.This coiled material has good resistance to elevated temperatures, can in the temperature range of-25 ℃ to+100 ℃, use, and has higher elasticity and fatigue durability, and higher percentage elongation and stronger puncture-resistant ability, tear-resistant ability.Be suitable for cold district, and distortion and the larger industry of vibration and the waterproofing work of civil buildings.Adhesive waterproof coil is that the self-adhesive rubber asphalt that the synthetic rubber such as a kind of SBS of take, tackifier and high-quality pavement petroleum asphalt etc. are mixed with is base-material, tough density polyethylene film with high or aluminium foil are as top surface, and strippable painting silicon barrier film or painting silicon barrier paper are the waterproof material that the antiseized isolated material of lower surface is made.It is a kind of waterproof material that has development prospect, has the advantages that low temperature flexibility, self-healing property and adhesive property are good, can normal temperature construction, speed of application fast, meet environmental requirement.Adhesive waterproof coil can be high-polymer self-adhesion waterproof coiled material, Modified asphalt self-adhesion waterproof rolling material, have carcass adhesive waterproof coil or without carcass adhesive waterproof coil.High-polymer self-adhesion waterproof coiled material integrates polymer membranes and adhesive waterproof coil advantage, has greatly improved the performances such as anti-puncture, weather-proof, self-healing, high-low temperature resistant, and physical property is more excellent, and chemical property is more stable.High-polymer self-adhesion waterproof coiled material has following characteristics: 1. the physical property such as tension, tear-proof and anti-puncture is good; Stronger chemical resistance, to having good repellence from concrete buck, is not subject to house refuse and biological infringement, mildew-resistant, corrosion-resistant; When construction can according to engineering site condition select wet paving, empty paving, machinery fixing, hang the construction methods such as paving, construct more flexible, waterproof effect is more excellent.Low to basic level requirement while particularly adopting wet application, without screed-coat, Bu Shou basic unit humidity and weather effect, rainy season construction and its unique advantage that works to tight deadlines; Seam forms one by hot air welding, solid and reliable, has long-term solderability; 3. cold-working industry, the flames of anger, nonpoisonous and tasteless, non-environmental-pollution and hidden fire-fighting danger, safety and environmental protection; Easy to maintenance, quick; 4. one deck waterproof, twice are set up defences, and waterproof effect is more reliable; Can not do concrete cover on coiled material and directly implement armored concrete and build, cost performance is high.Modified asphalt self-adhesion waterproof rolling material has following characteristics: 1, material: have the elasticity of rubber, percentage elongation is splendid, adapts to well distortion and the cracking of basic unit; Have the excellent cohesive force to basic unit, cohesive force is often greater than its shearing force, guarantees that overlap joint is tight reliable; This coiled material has good acidproof, alkaline-resisting, resistance to chemical attack, has good ageing-resistant performance in various environment; " self-healing function " that has characteristic, the puncture that can heal voluntarily less is damaged, when meeting with puncture or hard thing and embed, can be automatically and these objects be integrated, keep good water resistance; 2, construction: without binding agent, also must not heat and bake to fusing, need only tear separation layer off, can be bonded in securely in basic unit, easy construction and speed of application are exceedingly fast; Construction safety, free from environmental pollution, easy construction is clean, easily accomplishes on-the-spot civilized construction; 3, environmental protection: economize desolventizing and fuel in work progress, avoided environmental pollution and hidden fire-fighting danger, saved resource; 4, price: best price/performance ratio, reliability is high.Adhesive waterproof coil can be compounded with enhancing carcass material, also can be not containing strengthening carcass material.Carcass reinforcing material mainly contains polyester felt, Chopped Strand Mat, glass fiber reticular cloth, cotton composite fibre nonwoven and other kinds carcass reinforcing material, and its Main Function is the tensile strength that keeps the dimensional stability of coiled material and improve coiled material.
As a kind of preferred version that overlays waterproof roll with sand face, the two ends of described waterproof roll or arbitrary end are reserved with coiled material lapping limit.
As a kind of preferred version that overlays waterproof roll with sand face, described sizing material layer adopts asphaltic base sizing material or high score subclass sizing material.Other cementing materials that other those skilled in the art can be known are all applicable to the utility model.
Wherein, the pitchy complex mixture that pitch is comprised of the hydrocarbon and their derivative of different molecular weight, be in a liquid state, semisolid or solid-state, it is a kind of waterproof and dampproof organic gel gel material, now by outer-penetrating agents (modifier) such as admixture rubber, resin, high molecular polymer, levigate rubber powder or other fillers, or take, to measures such as pitch mild oxidation processing, its performance to be improved.
High score subclass sizing material is to take the cementing material that synthesis of natural macromolecular compound makes as main body, as butyl rubber, polymeric pressure sensitive adhesive etc.Butyl rubber is by isobutene and a kind of synthetic rubber that a small amount of isoprene copolymer forms, and has good chemical stability and heat endurance, and the most outstanding is air-tightness and watertightness; Polymeric pressure sensitive adhesive is that a class has the adhesive that pressure is had to sensitiveness, has higher cohesive force, peeling force and initial bonding strength.
Compared with prior art, the utlity model has following technique effect:
(1), waterproof roll when adopting pre-laid method construction, the sand surface layer being covered with on sizing material layer can effectively be isolated sizing material layer, without spreading cement flour, has avoided sizing material to glue pin;
(2), waterproof roll is when adopting pre-laid method construction; the sand surface layer that sizing material layer is covered with can prevent from being subject to after sizing material layer and waterproof roll are exposed in air for a long time the impact of the natural conditions such as temperature, illumination and generating material performance degradation; thereby affect waterproof effect, played the effect of protection waterproof roll.
Accompanying drawing explanation
Fig. 1 is the structural representation that overlays waterproof roll with sand face described in embodiment mono-;
Fig. 2 is the structural representation that overlays waterproof roll with sand face described in embodiment bis-;
Fig. 3 is the structural representation that overlays waterproof roll with sand face described in embodiment tri-;
Fig. 4 is the structural representation that overlays waterproof roll with sand face described in embodiment tetra-, five.
In figure: 1, sand surface layer; 2, sizing material layer; 3, substrate layer; 4, the first protective layer; 5, carcass reinforcing material; 6, the second protective layer; 7, overlap edge.
Below the utility model is further described.But following example is only simple and easy example of the present utility model, do not represent or limit rights protection scope of the present utility model, interest field of the present utility model is as the criterion with claims.
The specific embodiment
For the utility model is described better, be convenient to understand the technical solution of the utility model, typical but non-limiting embodiment of the present utility model is as follows:
Embodiment mono-:
As shown in Figure 1; the waterproof roll that overlays with sand face shown in the present embodiment; it comprises sizing material layer 2; sizing material layer 2 upper surface are compounded with sand surface layer 1; sizing material layer 2 lower surface are compounded with substrate layer 3; substrate layer 3 is away from compound first protective layer 4 of a side of sizing material layer 2, and one end of waterproof roll is reserved with overlap edge 7.
In the present embodiment, sizing material layer 2 adopts self-adhesive rubber asphalt sizing material to make, and substrate layer 3 adopts HDPE, and the first protective layer 4 is nonwoven layer.
Embodiment bis-:
As shown in Figure 2; the waterproof roll that overlays with sand face shown in the present embodiment; it comprises substrate layer 3; substrate layer is the equal compound adhesive bed of material 2 in two sides Shang Xia 3; the sizing material layer 2 that is arranged on substrate layer 3 upper surfaces is compounded with sand surface layer 1 away from a side of substrate layer 3; the sizing material layer 2 that is arranged on substrate layer 3 lower surfaces is compounded with the first protective layer 4 away from a side of substrate layer 3, and one end of waterproof roll is reserved with overlap edge 7.
In the present embodiment, sizing material layer 2 adopts self-adhesive rubber asphalt sizing material, and substrate layer 3 adopts HDPE, and the first protective layer 4 is nonwoven layer.
Embodiment tri-:
As shown in Figure 3; the waterproof roll that overlays with sand face shown in the present embodiment; comprise carcass reinforcing material 5; carcass reinforcing material is the equal compound adhesive bed of material 2 in two sides Shang Xia 5; the sizing material layer 2 that is arranged on carcass reinforcing material 5 upper surfaces is compounded with sand surface layer 1 away from a side of carcass reinforcing material 5; the sizing material layer 2 that is arranged on carcass reinforcing material 5 lower surfaces is compounded with the second protective layer 6 away from a side of carcass reinforcing material 5, and one end of waterproof roll is reserved with overlap edge 7.
In the present embodiment, sizing material layer 2 adopts self-adhesive rubber asphalt sizing material, and carcass reinforcing material 5 adopts polyester felt carcass, and the second protective layer 6 adopts barrier film, and barrier film is selected PE film.
Embodiment tetra-:
As shown in Figure 4, the waterproof roll that overlays with sand face shown in the present embodiment, comprises sizing material layer 2, and sizing material layer 2 upper surface are compounded with sand surface layer 1, and sizing material layer 2 lower surface are compounded with substrate layer 3, and one end of waterproof roll is reserved with overlap edge 7.
In the present embodiment, sizing material layer 2 adopts high score subclass sizing material, and high score subclass sizing material is selected polymeric pressure sensitive adhesive, and substrate layer 3 adopts TPO.
Embodiment five:
As shown in Figure 4, the waterproof roll that overlays with sand face shown in the present embodiment, comprises sizing material layer 2, and sizing material layer 2 upper surface are compounded with sand surface layer 1, and sizing material layer 2 lower surface are compounded with substrate layer 3, and one end of waterproof roll is reserved with overlap edge 7.
In the present embodiment, sizing material layer 2 adopts high score subclass sizing material, and high score subclass sizing material is selected butyl rubber, and substrate layer 3 adopts PVC.
Applicant statement, has described know-why of the present utility model in conjunction with specific embodiments above.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (7)
1. with the waterproof roll that overlays of sand face, it is characterized in that, comprise sizing material layer, at least one side of described sizing material layer is provided with sand surface layer; Described sizing material layer inside and surface recombination have substrate layer, or described sizing material layer inside is compounded with substrate layer.
2. the waterproof roll that overlays with sand face as claimed in claim 1, is characterized in that, described sizing material layer inside and/or surface recombination have the protective layer of enhancing and/or buffer action.
3. the waterproof roll that overlays with sand face as claimed in claim 2, is characterized in that, described sizing material layer inside and/or surface recombination have carcass reinforcing material.
4. the waterproof roll that overlays with sand face as claimed in claim 1, is characterized in that, described substrate layer adopts the lamination layer structure of any or two kinds in polymer membranes, pitch base class waterproof roll.
5. the waterproof roll that overlays with sand face as claimed in claim 3, is characterized in that, described carcass reinforcing material adopts metal material and/or nonmetallic materials.
6. waterproof roll as claimed in claim 1, is characterized in that, the two ends of described waterproof roll or arbitrary end are reserved with coiled material lapping limit.
7. the waterproof roll that overlays with sand face as claimed in claim 1, is characterized in that, described sizing material layer adopts asphaltic base sizing material or high score subclass sizing material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320384916.2U CN203527998U (en) | 2013-06-28 | 2013-06-28 | Pre-laid waterproof roll with abrasive surface |
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| CN201320384916.2U CN203527998U (en) | 2013-06-28 | 2013-06-28 | Pre-laid waterproof roll with abrasive surface |
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| CN203527998U true CN203527998U (en) | 2014-04-09 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723622A (en) * | 2015-03-24 | 2015-06-24 | 任太平 | Polyethylene polypropylene fiber and high-polymer cement mortar composite waterproof roll and construction method thereof |
| CN106759957A (en) * | 2016-11-30 | 2017-05-31 | 重庆中防德邦防水技术有限公司 | Adhesive waterproof coil |
| CN108162525A (en) * | 2017-12-04 | 2018-06-15 | 唐山东方雨虹防水技术有限责任公司 | The film covering method and waterproof roll of a kind of waterproof roll |
| CN110315810A (en) * | 2019-06-20 | 2019-10-11 | 江苏凯伦建材股份有限公司 | Cross-level press mold overlays waterproof roll |
| CN110330910A (en) * | 2019-06-20 | 2019-10-15 | 江苏凯伦建材股份有限公司 | Cross-level press mold overlays the preparation process of waterproof roll |
| CN110938390A (en) * | 2019-11-20 | 2020-03-31 | 江苏凯伦建材股份有限公司 | Pre-paved high-molecular waterproof coiled material |
| CN111270707A (en) * | 2020-02-27 | 2020-06-12 | 深圳市粤通建设工程有限公司 | Construction method for pre-laying anti-sticking waterproof roll of polymer adhesive film |
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- 2013-06-28 CN CN201320384916.2U patent/CN203527998U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723622A (en) * | 2015-03-24 | 2015-06-24 | 任太平 | Polyethylene polypropylene fiber and high-polymer cement mortar composite waterproof roll and construction method thereof |
| CN104723622B (en) * | 2015-03-24 | 2017-03-01 | 任太平 | Polyethylene polypropylene high polymer cement mortar composite of water-proof coiled material and its construction method |
| CN106759957A (en) * | 2016-11-30 | 2017-05-31 | 重庆中防德邦防水技术有限公司 | Adhesive waterproof coil |
| CN108162525A (en) * | 2017-12-04 | 2018-06-15 | 唐山东方雨虹防水技术有限责任公司 | The film covering method and waterproof roll of a kind of waterproof roll |
| CN108162525B (en) * | 2017-12-04 | 2020-03-27 | 唐山东方雨虹防水技术有限责任公司 | Preparation method of waterproof coiled material and waterproof coiled material |
| CN110315810A (en) * | 2019-06-20 | 2019-10-11 | 江苏凯伦建材股份有限公司 | Cross-level press mold overlays waterproof roll |
| CN110330910A (en) * | 2019-06-20 | 2019-10-15 | 江苏凯伦建材股份有限公司 | Cross-level press mold overlays the preparation process of waterproof roll |
| CN110938390A (en) * | 2019-11-20 | 2020-03-31 | 江苏凯伦建材股份有限公司 | Pre-paved high-molecular waterproof coiled material |
| CN111270707A (en) * | 2020-02-27 | 2020-06-12 | 深圳市粤通建设工程有限公司 | Construction method for pre-laying anti-sticking waterproof roll of polymer adhesive film |
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