CN104827723A - Asphalt composite tire flexible waterproof coil - Google Patents

Abstract

The invention discloses an asphalt composite tire flexible waterproof coil. The asphalt composite tire flexible waterproof coil comprises a modified asphalt center layer, the upper surface and the lower surface of the modified asphalt center layer are respectively provided with a film, the modified asphalt center layer comprises a core portion substrate and modified asphalt coated on the external surface of the substrate, and the substrate has a latticed structure. The asphalt composite tire flexible waterproof coil has the advantages of good flexibility, no flow at a high temperature, and no brittle fracture at a low temperature.

Description

Pitch composite tyre flexible waterproof sheet

Technical field

The present invention relates to a kind of waterproof roll, be specifically related to a kind of pitch composite tyre flexible waterproof sheet, belong to laminar product technical field.

Background technology

Pitch, as the part played a major role in waterproof composite material, has low price, and the advantage such as recoverable and good stability, is widely used in waterproof roll.But the shortcoming of plain asphalt is high temperature easily trickles, fragile under low temperaturely to split, improve its performance at present mainly through modification, as changed pitch chemical composition, or modifier is uniformly distributed in pitch form certain spacial framework, such mode cost is higher.How to develop a kind of physical means of structure composite that utilizes to improve the serviceability of pitch composite tyre flexible waterproof sheet, become technical problem urgently to be resolved hurrily.

Summary of the invention

Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of pitch composite tyre flexible waterproof sheet being applicable to Hot-melt construction.

Technical scheme: for solving the problems of the technologies described above, pitch composite tyre flexible waterproof sheet provided by the invention comprises modified pitch central core, the upper and lower surface of described modified pitch central core is all laid with film, described modified pitch central core comprises the tire base of core and is wrapped in the modified pitch of tire base outer surface, and described tire base has fenestral fabric.

Particularly, described tire base comprises the first clathrum and the second clathrum that stack successively, and the grid on described first net interlayer and the second clathrum staggers mutually.

Particularly, described first clathrum is identical with the size of mesh opening of the second clathrum.

Particularly, the spacing of described first clathrum and the second clathrum is 0.02 ~ 0.05mm.

Particularly, described film is polyethylene film or polyester film.

The present invention proposes the construction method of above-mentioned pitch composite tyre flexible waterproof sheet simultaneously, comprises the following steps:

Step 1, base cleaning;

Step 2, at substrate surface even brushing bituminous neoprene adhesive;

Step 3, paving extra play, overlays a layer coiled material in pipe root, negative and positive angular position;

Step 4, paving coiled material, rolls by full bonding and lays, and heat simultaneously and make asphalt temperature keep being 200 ~ 250 DEG C, edge lap width is 100mm;

Step 5, hot melt edge sealing, coiled material lapping seam place spray gun heats, and is pressure bonded to edge and extrudes pitch and cement;

Step 6, protective layer is constructed, and when water-proofing treatment surface is plane, protects waterproof material with pea gravel concreten protective layer; When water-proofing treatment surface is facade, smear 20mm solid cement mortar on its surface.

Beneficial effect: pitch composite tyre flexible waterproof sheet of the present invention, owing to have employed latticed tire base sandwich layer, coordinates the structure of double-sided symmetrical, has following beneficial effect:

1. adopt symmetrical structure, respectively good to uniformity. tensile strength is large, to base-layer contraction, distortion, cracking adaptable;

2. possess good water resistance and ageing resistace, long service life;

3. high temperature does not flow and plows, and low temperature not embrittlement, constructing operation is easy, and environmental suitability is wide.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is the sectional view of Fig. 1.

Detailed description of the invention

Embodiment: the pitch composite tyre flexible waterproof sheet of the present embodiment as shown in Figure 1, comprises modified pitch central core 1, is laid with the first film 3-1 at the upper surface of modified pitch central core 1, is laid with the second film 3-2 at the lower surface of modified pitch central core 1.The core of modified pitch central core is tire base, and this tire base comprises the first clathrum 2-1 and the second clathrum 2-2 that mutually stack, is wrapped with modified pitch at tire base.First clathrum 2-1 is identical with the size of mesh opening of the second clathrum 2-2, and both spacing are 0.02 ~ 0.05mm.The first film 3-1 second film 3-2 can adopt polyethylene film or polyester film.

During use, can Hot-melt construction, comprise the following steps:

1. construction is front by clean for the pending base cleaning of acceptance(check).

2. brushing base treatment agent: at substrate surface even brushing bituminous neoprene adhesive.

3. paving extra play: overlay a layer coiled material in pipe root, negative and positive angular position.By specification and designing requirement, coiled material is cut into corresponding shape and carries out paving.

4. paving coiled material: modified asphalt waterproof coiled material is carried out cutting by paving length and spools for subsequent use, the coiled material will spooled during operation, the volume heart is penetrated with the pipe of φ 30, coil end, than the starting point starting together to spread, adopts special flame gun, heating basic unit and coiled material junction, it is roasting that spray gun keeps the distance of about 300mm to come and go spray apart from heating surface, when surperficial pitch starts to melt and is black bright state, limit baking limit paving coiled material, and use roller compaction.Should note during heating regulating flame size and speed simultaneously, make asphalt temperature keep being 200 DEG C--between 250 DEG C, slowly roll forward layings in hand steered die two ends, require firmly evenly, not to choke with resentment, laying flanging width should be grasped.Paving mode is full bonding, and lap width is 100mm.

5. hot melt edge sealing: coiled material lapping seam place spray gun heats, is pressure bonded to edge and extrudes pitch and cement.The termination of receiving head place coiled material is cut out neat after in press-in groove, and press solidly fixed with metal bead nail, the interior sealing compound of groove is obturaged.

6. protective layer construction: when water-proofing treatment surface is plane, with pea gravel concreten protective layer, waterproof material is protected.When water-proofing treatment surface is facade, smear 20mm solid cement mortar on its surface.

Also construction with cold alhesion method can be used, first adhesive is evenly brushed on waterproof matrix and waterproof roll, be Pasting coiled material after drying a little, use pressure roller roll extrusion subsequently, air below coiled material is extruded, make coiled material smooth, be pasted onto on basic unit or coiled material closely, securely.

The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. a pitch composite tyre flexible waterproof sheet, comprise modified pitch central core, the upper and lower surface of described modified pitch central core is all laid with film, it is characterized in that: described modified pitch central core comprises the tire base of core and is wrapped in the modified pitch of tire base outer surface, and described tire base has fenestral fabric.

2. pitch composite tyre flexible waterproof sheet according to claim 1, is characterized in that: described tire base comprises the first clathrum and the second clathrum that stack successively, and the grid on described first net interlayer and the second clathrum staggers mutually.

3. pitch composite tyre flexible waterproof sheet according to claim 2, is characterized in that: described first clathrum is identical with the size of mesh opening of the second clathrum.

4. pitch composite tyre flexible waterproof sheet according to claim 2, is characterized in that: the spacing of described first clathrum and the second clathrum is 0.02 ~ 0.05mm.

5. pitch composite tyre flexible waterproof sheet according to claim 1, is characterized in that: described film is polyethylene film or polyester film.

6. the construction method of pitch composite tyre flexible waterproof sheet according to claim 1, is characterized in that comprising the following steps:

Step 1, base cleaning;

Step 2, at substrate surface even brushing bituminous neoprene adhesive;

Step 3, paving extra play, overlays a layer coiled material in pipe root, negative and positive angular position;

Step 4, paving coiled material, rolls by full bonding and lays, and heat simultaneously and make asphalt temperature keep being 200 ~ 250 DEG C, edge lap width is 100mm;

Step 5, hot melt edge sealing, coiled material lapping seam place spray gun heats, and is pressure bonded to edge and extrudes pitch and cement;

Step 6, protective layer is constructed, and when water-proofing treatment surface is plane, protects waterproof material with pea gravel concreten protective layer; When water-proofing treatment surface is facade, smear 20mm solid cement mortar on its surface.