CN211570527U

CN211570527U - Modified asphalt pre-paved waterproof coiled material

Info

Publication number: CN211570527U
Application number: CN201922148760.8U
Authority: CN
Inventors: 张广彬; 桑丽娜; 刘春丹
Original assignee: Shengli Oil Field Dynamic New Type Waterproof Building Materials Co ltd
Current assignee: Shengli Oil Field Dynamic New Type Waterproof Building Materials Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-09-25
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a modified asphalt pre-paved waterproofing membrane, its technical scheme is: the tire base enhancement layer is arranged in the modified asphalt pressure-sensitive self-adhesive layer, the anti-sticking isolation film is arranged on the lower surface of the modified asphalt pressure-sensitive self-adhesive layer, the intermittent tear seams are arranged on the left side and the right side of the anti-sticking isolation film, the weather-resistant mineral particle functional layer and the anti-sticking isolation edge film are adjacently arranged on the upper surface of the modified asphalt pressure-sensitive self-adhesive layer, and the anti-sticking isolation edge film is arranged on one side edge of the upper surface of the modified asphalt pressure-sensitive self-adhesive layer. The utility model discloses both solved the technical defect that needs to set up the protective layer when internal current modified asphalt class is spread coiled material in advance and is constructed, still solved polymer class and spread coiled material in advance simultaneously and easily warp in overlap edge department and throw off and polymer class is spread coiled material in advance and still need use the sticky tape at the back temporarily fixed technical defect in the construction of heterotypic position such as negative and positive angle, and the used raw materials of production range of drawing materials is wide, convenient easy, makes manufacturing cost reduce by a wide margin, convenient to use, does benefit to and improves the construction.

Description

Modified asphalt pre-paved waterproof coiled material

Technical Field

The utility model relates to a modified asphalt waterproofing membrane, in particular to modified asphalt pre-paved waterproofing membrane.

Background

One of the difficulties which plague the industry for decades in underground waterproofing is the waterproofing quality of the bottom plate and the side wall without the construction space. The main reason is leakage of blow-by water. Traditional waterproof materials adopt outer waterproof and inner waterproof, and waterproof coiled materials are only adhered to a base layer, but not adhered to structural concrete. Once the coil is damaged, groundwater can flow between the waterproofing layer and the structural concrete, from the concrete cracks into the interior of the building. Another reason is sedimentation effects. When the traditional waterproof material is bonded with the base layer, once foundation settlement occurs, the base layer is easy to deform and settle, the waterproof layer is easy to distort and deform along with the foundation settlement, the waterproof layer is easy to separate from the bonded base layer, the waterproof layer cannot be completely sealed, and the bottom plate is exposed in underground water. Therefore, it becomes a challenge how to provide direct full-bonding waterproof protection for the structural concrete at the side wall part without the construction space of the bottom plate and the side wall.

The U.S. Grace company has been in 1992 utility model discloses a pre-paved waterproofing membrane system and construction technology, adopts polymer from viscose membrane waterproofing membrane to realize forming full adhesion with structural concrete in bottom plate and side wall no construction space side wall position for the first time in the world, has obtained best water-proof effects. The waterproof coiled material is a novel waterproof coiled material developed after 90 years in the 20 th century, has the advantages of good low-temperature and waterproof performances, high tension and elongation, self-adhesion and the like, is deeply favored by the building waterproof industry, particularly by construction units, and is rapidly developed domestically in recent years. However, the self-adhesive adopted by the waterproof coiled materials in China still mainly adopts modified asphalt and the surface of the self-adhesive is provided with an anti-sticking isolating membrane, so that the technical defects that a cement mortar protective layer needs to be arranged in the pre-paving construction process are caused, and further the low construction efficiency and the potential engineering risk are caused. Some published documents in recent years report solutions, such as:

in document 1, chinese patent application No. 201310297231.9, entitled "a release-free type high molecular self-adhesive waterproof roll material and a method for manufacturing the same", the utility model comprises a plastic substrate having overlapping areas at both sides of the upper surface and a bonding area with structural concrete at the middle part, and a self-adhesive layer and an isolation layer thermally coated on the upper surface of the plastic substrate. Wherein the self-adhesive layer in the structure of the uncovering-free type macromolecule self-adhesive waterproof coiled material consists of SBS resin, SIS resin, plasticizer, tackifier, light absorbent and filler; the self-adhesive layer is provided with an isolating layer which is composed of active inorganic particles and can generate hydration reaction with the freshly mixed cement-based material. When the self-adhesive waterproof coiled material with the structure is used, concrete is directly poured without removing an isolation layer material on the surface of the self-adhesive waterproof coiled material, and a firm connection interface is formed. Therefore, the method has the advantages of simpler construction, reduction of resource waste, more stable and reliable bonding performance with concrete and the like.

In document 2, chinese patent application No. 201420307428.6, the patent name "a high polymer pre-paved waterproof roll" is that the technical scheme of the patent is: the upper surface of the modified polyethylene plastic waterproof main body layer is an SIS hot-melt pressure-sensitive self-adhesive layer, and a weather-resistant mineral particle functional layer with cement reaction activity and a heat-reflection type anti-sticking isolation edge film positioned on one side edge of the coiled material are covered on the upper surface of the SIS hot-melt pressure-sensitive self-adhesive layer; the beneficial effects are that: the heat-reflection type anti-sticking isolation edge film can obviously reduce the surface temperature of the SIS hot-melt pressure-sensitive self-adhesive layer at the lapping edge part of the high-molecular pre-paved waterproof coiled material exposed to the sun outdoors, so that the thermal creep property of the SIS hot-melt pressure-sensitive self-adhesive is reduced, and the removal of the anti-sticking isolation edge film in the construction process is facilitated; the setting of the weather-resistant mineral particle functional layer enables the coiled material to have the concrete mortar bonding construction characteristic, effectively prevents the problem of ultraviolet ray aging caused by long-term exposure of self-adhesive glue in the air, and provides a non-sticky pedestrian surface for construction operation, thereby avoiding the setting of a cement mortar protective layer and reducing the construction cost.

The technical scheme reported in the above-mentioned published documents adopts macromolecule self-adhesive to replace modified asphalt self-adhesive, and basically solves the technical defects of poor ageing resistance and the need of setting cement mortar protective layer in the pre-laying construction process of the domestic existing products. However, the method still has fatal technical defects, namely, after the construction of the polyethylene plastic waterproof main body layer is finished, the lap joint part of the coiled material is easy to deform and tilt or even separate under the dual actions of swelling of the SIS hot melt pressure-sensitive self-adhesive and internal stress of the polyethylene plastic waterproof main body layer after the construction of the polyethylene plastic waterproof main body layer is exposed to the sun, and the engineering quality is seriously influenced; meanwhile, the production cost is high, the current market demand situation is difficult to adapt, and the popularization and the application of the product are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a modified asphalt pre-paved waterproofing membrane to the above-mentioned defect that prior art exists, having solved the technical defect that needs to set up the protective layer when current modified asphalt class pre-paved coiled material is constructed, still solved polymer class pre-paved coiled material simultaneously and easily buckled in overlap edge department and throw off and polymer class pre-paved coiled material still need use the sticky tape at the back temporary fixation's at heterotypic position construction such as negative and positive angle.

The utility model provides a modified asphalt pre-paved waterproofing membrane, its technical scheme is: the modified asphalt pressure-sensitive self-adhesive layer comprises a tire base enhancement layer (1), a modified asphalt pressure-sensitive self-adhesive layer (2), an anti-adhesion isolating film (3), a discontinuous tearing seam (4), a weather-resistant mineral particle functional layer (5) and an anti-adhesion isolating edge film (6), wherein the tire base enhancement layer (1) is positioned in the modified asphalt pressure-sensitive self-adhesive layer (2), the anti-adhesion isolating film (3) is positioned on the lower surface of the modified asphalt pressure-sensitive self-adhesive layer (2), the discontinuous tearing seam (4) is arranged on the left side and the right side of the anti-adhesion isolating film (3), the weather-resistant mineral particle functional layer (5) and the anti-adhesion isolating edge film (6) are adjacently arranged on the upper surface of the modified asphalt pressure-sensitive self-adhesive layer (2), and the anti-adhesion isolating edge film (6) is positioned.

Preferably, the modified asphalt pressure-sensitive self-adhesive layer (2) is prepared from an environment-friendly modified asphalt pressure-sensitive self-adhesive which is modified by an environment-friendly odor-free activating agent and high-activity superfine slag micro powder and has cement reaction activity.

Preferably, the weather-resistant mineral particle functional layer (5) is composed of synthetic sand, the synthetic sand is made of white cement, high-activity superfine slag micro powder and natural mineral particles, and the size range of the synthetic sand is 30-70 meshes of continuous gradation.

Preferably, the base reinforcing layer (1) is a long fiber polyester base or a high density polyethylene cross-laminated film.

Preferably, the anti-sticking isolating film (3) adopts a wrinkle-type or pattern-type anti-wrinkling anti-sticking isolating film.

Preferably, the anti-sticking separation edge film (6) adopts a heat reflection type polyester anti-sticking separation film.

Preferably, the intermittent tearing seam (4) is arranged on the anti-sticking isolating film (3) and is arranged by an intermittent cutting device in an 'online' intermittent cutting mode in the production process of the coiled material.

The utility model has the advantages that: the upper surface of the utility model adopts the design of the protective layer-free weather-proof mineral particle functional layer, so that the product has the construction function of pre-paving and anti-sticking, the lower surface adopts the design of the pressure-sensitive self-adhesive layer of the modified asphalt and the anti-sticking isolating membrane which can be removed according to the requirement, so that the product has the temporary fixing function of the base layer, therefore, the technical defect that a protective layer is required to be arranged when the domestic modified asphalt pre-laid coiled material is constructed is overcome, simultaneously solves the technical defects that the high polymer pre-laid coiled material is easy to warp and release at the overlapping edge and the high polymer pre-laid coiled material needs to be temporarily fixed on the back surface by using an adhesive tape when being constructed at special-shaped positions such as internal and external corners and the like, the raw materials used for production are wide in material obtaining range, convenient and easy to obtain, so that the production cost is greatly reduced, the higher-molecular-type pre-paved coiled material has a remarkable cost advantage, and the method is convenient to use and beneficial to improvement of the construction efficiency and the construction quality reliability.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

in the upper diagram: the modified asphalt self-adhesive tyre comprises a tyre base reinforcing layer 1, a modified asphalt pressure-sensitive self-adhesive layer 2, an anti-adhesion isolating film 3, a discontinuous tear seam 4, a weather-resistant mineral particle functional layer 5 and an anti-adhesion isolating edge film 6.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

The utility model provides a modified asphalt is waterproofing membrane of spreading in advance, including base enhancement layer (1), modified asphalt pressure-sensitive from constructions such as viscose layer (2), antiseized barrier film (3), discontinuous tear seam (4), resistant time mineral granule functional layer (5) and antiseized barrier bead membrane (6). The base enhancement layer (1) be arranged in modified asphalt pressure-sensitive self-adhesive layer (2), antiseized barrier film (3) are arranged on the lower surface of modified asphalt pressure-sensitive self-adhesive layer (2), intermittent tear seam (4) are arranged on the left and right sides of antiseized barrier film (3), weather-resistant mineral particle functional layer (5) and antiseized barrier side film (6) are adjacently arranged on the upper surface of modified asphalt pressure-sensitive self-adhesive layer (2), wherein antiseized barrier side film (6) are arranged on one side edge of the upper surface of modified asphalt pressure-sensitive self-adhesive layer (2).

When in manufacturing, the prepared modified asphalt self-adhesive is sent to a forming production line, the modified asphalt pressure-sensitive self-adhesive with fixed thickness is coated on the two sides of the tire base reinforcing layer, then the upper surface of the modified asphalt pressure-sensitive self-adhesive is coated with a weather-resistant mineral particle functional layer and a heat-reflection type polyester anti-sticking isolation side film, the lower surface is coated with a wrinkle-resistant anti-sticking isolation film or a pattern type wrinkle-resistant anti-sticking isolation film, then an intermittent cutting device is utilized to cut intermittent tearing seams in an 'on-line' manner, and then the procedures of traction, compaction, cooling, conveying, coiling, metering, cutting, packaging and the like are carried out to prepare the internal enhancement type modified asphalt pre-paved waterproof coiled.

The preferable technical parameters of the long-fiber polyester tire base adopted by the tire base reinforced layer (1) are as follows: the gram weight is more than or equal to 250 g/square meter, the thickness is 1.5mm, the maximum tensile force is more than or equal to 850N/50mm, the elongation (extensometer method) at the maximum tensile force is more than or equal to 42 percent, the tear strength of a nail rod is more than or equal to 220N, and the tear strength of a right angle is more than or equal to 350N.

The high-density polyethylene cross laminated film used for the base reinforcing layer (1) preferably has the following technical parameters: the number of composite layers is more than or equal to 3, the gram weight is more than or equal to 200 g/square meter, the thickness is less than or equal to 0.2mm, the maximum tensile force is more than or equal to 500N/50mm, the elongation (extensometer method) at the maximum tensile force is less than or equal to 400%, the tear strength of a nail rod is more than or equal to 120N, and the tear strength of a right angle is more than or equal to 30N.

The anti-sticking isolating film (3) adopts a wrinkle-type or pattern-type anti-wrinkling anti-sticking isolating film. The preferable technical parameters are as follows: the gram weight is more than or equal to 35 g/square meter, the maximum tensile force is more than or equal to 70N/50mm, and the elongation at the maximum tensile force (extensometer method) is more than or equal to 200 percent. The further intermittent tearing seam (4) is cut in an on-line way, and the further anti-sticking isolating film can be torn off according to the specific situation when in construction.

The anti-sticking separation edge film (6) adopts a heat reflection type polyester anti-sticking separation film, and the preferable technical parameters are as follows: the gram weight is more than or equal to 40 g/square meter, the maximum tensile force is more than or equal to 200N/50mm, and the elongation at the maximum tensile force (extensometer method) is more than or equal to 50 percent.

The utility model discloses a setting up of resistant time mineral particles functional layer makes the coiled material have concrete mortar bonding construction characteristics to effectively stop the self-adhesive and expose the ultraviolet ageing problem that forms in the air for a long time, and the construction operation provides non-adhesive pedestrian's surface, thereby has avoided the setting of cement mortar protective layer, is showing and has reduced construction cost and improved the construction work efficiency.

The above description is only a few of the preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims

1. The utility model provides a modified asphalt pre-paved waterproofing membrane which characterized by: the modified asphalt pressure-sensitive self-adhesive layer comprises a tire base enhancement layer (1), a modified asphalt pressure-sensitive self-adhesive layer (2), an anti-adhesion isolating film (3), a discontinuous tearing seam (4), a weather-resistant mineral particle functional layer (5) and an anti-adhesion isolating edge film (6), wherein the tire base enhancement layer (1) is positioned in the modified asphalt pressure-sensitive self-adhesive layer (2), the anti-adhesion isolating film (3) is positioned on the lower surface of the modified asphalt pressure-sensitive self-adhesive layer (2), the discontinuous tearing seam (4) is arranged on the left side and the right side of the anti-adhesion isolating film (3), the weather-resistant mineral particle functional layer (5) and the anti-adhesion isolating edge film (6) are adjacently arranged on the upper surface of the modified asphalt pressure-sensitive self-adhesive layer (2), and the anti-adhesion isolating edge film (6) is positioned.

2. The modified asphalt pre-paved waterproof roll as claimed in claim 1, which is characterized in that: the base reinforced layer (1) adopts a long-fiber polyester base or a high-density polyethylene cross laminated film.

3. The modified asphalt pre-paved waterproof roll as claimed in claim 1, which is characterized in that: the anti-sticking isolating film (3) is a wrinkle-resistant anti-sticking isolating film or a pattern-resistant anti-sticking isolating film.

4. The modified asphalt pre-paved waterproof roll material as claimed in claim 1, which is characterized in that: the anti-sticking isolation side film (6) adopts a heat reflection type polyester anti-sticking isolation film.

5. The modified asphalt pre-paved waterproof roll material as claimed in claim 1, which is characterized in that: the intermittent tearing seam (4) is arranged on the anti-sticking isolating film (3) and is formed by 'online' intermittent cutting in the production process of the coiled material by an intermittent cutting device.