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Preparation method and construction method of TSR polyethylene tire pre-laid reinforced waterproof coiled material

A waterproof membrane and polyethylene tire base technology, which is applied in chemical instruments and methods, flat products, infrastructure engineering, etc., can solve the problem that the sealing membrane cannot be bonded, the waterproof layer cannot be directly sealed and bonded to the structural layer, etc. problems, to achieve the effect of eliminating water leakage, simple construction method and ensuring continuity

Pending Publication Date: 2021-11-12
LIAONING DAYU WATERPROOF TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently used coils have problems such as being unable to form a bonded seal with structural concrete, such as the underground engineering practice of SBS modified bitumen waterproof coils, basement concrete cushion construction→waterproof layer empty paving construction→concrete waterproof protection layer→structure concrete
The waterproof layer cannot be directly sealed and bonded to the structural layer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0054] Preparation Example 1 The preparation method of modified adhesive layer B comprises:

[0055] (a) raw rubber and 50% linear tackifying resin of formula weight, active filler of formula weight;

[0056](b) After cooling down, continue banburying and molding with the linear tackifying resin containing terminal hydroxyl structure, cross-linking agent and reactive auxiliary agent of the remaining formula weight to obtain a butyl rubber reaction adhesive layer.

[0057] The formula includes: 100 parts of raw rubber, 9.5 parts of linear tackifying resin with terminal hydroxyl structure and 12.5 parts of active filler; the active filler includes activated silica and activated alumina, and the mass ratio of the two is 1:1.

[0058] The novolak resin is a rosin-modified novolac resin.

[0059] The active filler includes bauxite, soda ash, quicklime, fly ash and calcined kaolin; wherein, the total weight of bauxite, soda ash, quicklime and fly ash accounts for 65% of the active ...

preparation example 2

[0066] Preparation Example 2 The preparation method of modified adhesive layer A comprises:

[0067] a) raw rubber, 50% linear tackifying resin by weight of formula, active filler by weight of formula;

[0068] b) After cooling down, continue banburying and molding with the remaining formula weight of linear tackifying resin containing terminal hydroxyl structure, cross-linking agent and reactive auxiliary agent to obtain a butyl rubber reaction adhesive layer.

[0069] The formula includes: 100 parts of raw rubber, 9.5-15.5 parts of linear tackifying resin containing terminal hydroxyl structure and 12.5 parts of active filler, and also includes: 3.5 parts by weight of terpene resin and 7 parts by weight of petroleum resin; active filler Including activated silica and activated alumina, the mass ratio of the two is 1:1.

[0070] The novolak resin is a rosin-modified novolac resin.

[0071] The active filler includes bauxite, soda ash, quicklime, fly ash and calcined kaolin; ...

Embodiment 1

[0078] The preparation method of embodiment 1 TSR polyethylene tire pre-paving reinforced waterproof membrane comprises the following steps:

[0079] S1. Melt the modified adhesive layer B and the isolation film separately, and co-extrude to obtain a multi-layer material a;

[0080] S2. Coextruding the multilayer material a with the polyethylene tire base to obtain the multilayer material b;

[0081] S3, melting the multilayer material b and the modified adhesive layer A respectively, and co-extruding to obtain the multilayer material c;

[0082] S4. Before cooling down, lay composite UV-resistant sand on the side of the modified adhesive layer A of the multilayer material c.

[0083] The isolation film in S1 includes a PE material isolation film.

[0084] The polyethylene tire base in S2 includes nano polyethylene tires or high density polyethylene tires.

[0085] The melting is carried out through a twin-screw extruder, and co-extruded through a co-extrusion die after mel...

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Abstract

The invention discloses a preparation method and a construction method of a TSR polyethylene tire pre-laid reinforced waterproof coiled material, and relates to the technical field of underground engineering waterproofing. The preparation method comprises the steps of respectively melting and co-extruding a modified adhesive layer B and an isolating membrane to obtain a multi-layer material a; co-extruding the multi-layer material a and a polyethylene base to obtain a multi-layer material b; respectively melting the multi-layer material b and a modified adhesive layer A, and co-extruding to obtain a multi-layer material c; and before cooling, laying composite ultraviolet-resistant sand on one side of the modified adhesive layer A of the multi-layer material c. According to the TSR polyethylene tire pre-laid reinforced waterproof coiled material prepared by the method, the upper surface of the TSR polyethylene tire pre-laid reinforced waterproof coiled material is tightly combined with post-poured concrete through a construction method of ultraviolet-resistant fine sand, so that a water-channeling-free sealing bonding interface is formed, and the risk of water channeling and leakage of an underground engineering waterproof layer is completely eradicated. The overlapping edge is constructed by a hot melting method, and the asphalt adhesive layers are firmly bonded, so that the continuity and integrity of the waterproof layer are ensured. The construction method is simple and saves a lot of construction period compared with a traditional method.

Description

technical field [0001] The invention relates to the technical field of underground engineering waterproofing, in particular to a preparation method and a construction method of a TSR polyethylene tire pre-paved reinforced waterproof coiled material. Background technique [0002] In the field of underground engineering waterproofing, the development of membrane waterproofing has changed from the inability of ordinary membranes to form a bonded seal with structural concrete, to the current pre-laid membranes, which can form a sealed and water-free bonding interface with structural post-cast concrete. [0003] However, the currently used coils have problems such as being unable to form a bonded seal with structural concrete, such as the underground engineering practice of SBS modified bitumen waterproof coils, basement concrete cushion construction→waterproof layer empty paving construction→concrete waterproof protection layer→structure concrete. The waterproof layer cannot be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/18B32B25/08B32B9/00B32B9/04B32B27/32C08L23/22C08L61/14C08L45/00C08L57/02C08K3/36C08K3/22B29D7/00E02D31/02
CPCB32B25/18B32B25/08B32B25/047B32B5/16B32B27/32C08L23/22B29D7/00E02D31/02B32B2264/10B32B2307/7265B32B2307/71B32B2419/00C08K2003/2227C08L61/14C08K3/36C08K3/22C08L45/00C08L57/02Y02P70/10
Inventor 郑宪明杭淑华金岩苑冰
Owner LIAONING DAYU WATERPROOF TECH DEV
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