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Preparation method of pre-paved waterproof membrane for concrete mortar bonded construction

A technology of concrete mortar and waterproof membrane, applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve the problems of cement-based particle isolation layer, poor water resistance, ultraviolet aging performance, increased production cost, poor aging resistance, etc. , to achieve the effect of eliminating ultraviolet aging problems, good water resistance, excellent weather resistance and water resistance

Active Publication Date: 2016-03-16
胜利油田大明新型建筑防水材料有限责任公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical solutions reported in the above-mentioned open documents all use polymer-based self-adhesives instead of modified asphalt-based self-adhesives, which basically solves the problems of poor aging resistance of existing domestic products and the need for cement mortar during pre-paving construction. Technical flaws in the protection layer
However, in Document 1, the PET silicon-coated isolation film needs to be removed during the construction process, so there are defects such as low construction efficiency and increased production costs; Document 2 solves the PET silicon-coated isolation film in Document 1 by setting a cement-based particle isolation layer. However, there are still technical defects such as poor water resistance and ultraviolet aging performance of the cement-based particle isolation layer, and there are potential engineering hidden dangers

Method used

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  • Preparation method of pre-paved waterproof membrane for concrete mortar bonded construction
  • Preparation method of pre-paved waterproof membrane for concrete mortar bonded construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1. Preparation method of modified polyethylene plastic waterproof main layer

[0049] First, 70 parts of high-density polyethylene resin, 30 parts of linear low-density polyethylene resin, 10 parts of thermoplastic elastomer resin, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 168 and 2 parts of titanium dioxide are added to the mixer, Mix and stir for 5 minutes; then add the mixture into a single-screw extruder, and extrude a modified polyethylene plastic waterproof main layer diaphragm with a thickness of 0.8mm. The operating process parameters are respectively that the temperature of the screw is 140-210°C, the temperature of the mold is 190-220°C and the temperature of the three rolls is 40-70°C.

[0050] 2. Preparation method of SIS hot-melt pressure-sensitive self-adhesive

[0051] First, add 15 parts of naphthenic white oil, 20 parts of polyisobutylene, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 168 and 45 parts of petroleum resin with a softe...

Embodiment 2

[0056] 1. Preparation method of modified polyethylene plastic waterproof main layer

[0057] First, 90 parts of high-density polyethylene resin, 30 parts of linear low-density polyethylene resin, 20 parts of thermoplastic elastomer resin, 0.8 part of antioxidant 1010, 1.2 parts of antioxidant 168 and 4 parts of titanium dioxide are added to the mixer, Mix and stir for 5 minutes; then add the mixture into a single-screw extruder, and extrude a modified polyethylene plastic waterproof main layer diaphragm with a thickness of 1.0mm. The operating process parameters are respectively that the temperature of the screw is 140-210°C, the temperature of the mold is 190-220°C and the temperature of the three rolls is 40-70°C.

[0058] 2. Preparation method of SIS hot-melt pressure-sensitive self-adhesive

[0059] First, add 30 parts of naphthenic white oil, 30 parts of polyisobutylene, 0.8 parts of antioxidant 1010, 1.2 parts of antioxidant 168, and 50 parts of petroleum resin with a s...

Embodiment 3

[0066] 1. Preparation method of modified polyethylene plastic waterproof main layer

[0067] First, add 60 parts of high-density polyethylene resin, 10 parts of linear low-density polyethylene resin, 0.5 part of antioxidant 1010 and 1 part of titanium dioxide into the mixer, mix and stir for 5 minutes; then add the mixture to the single-screw extruder In the exiting machine, a modified polyethylene plastic waterproof main layer membrane with a thickness of 1.0mm is extruded. The operating process parameters are respectively that the temperature of the screw is 140-210°C, the temperature of the mold is 190-220°C and the temperature of the three rolls is 40-70°C.

[0068] 2. Preparation method of SIS hot-melt pressure-sensitive self-adhesive

[0069] First, add 10 parts of naphthenic white oil, 10 parts of polyisobutylene, 0.5 parts of antioxidant 168 and 30 parts of petroleum resin with a softening point of 110°C into a reactor with a stirring device and mix when the temperatu...

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Abstract

The invention relates to a preparation method of a pre-laid waterproof coiled material for concrete mortar bonding construction. According to the technical scheme, the preparation method comprises the following steps: fully applying an SIS hot-melt pressure-sensitive adhesive to a modified polyethylene plastic waterproof main body layer by virtue of a hot-melt pressure sensitive adhesive coating machine, so as to form an SIS hot-melt pressure-sensitive self-sticking layer, and then coating the hot-melt pressure-sensitive self-sticking layer with a weather resistant mineral grain functional layer with cement reactivity and an anti-sticking isolation membrane positioned on one side of the coiled material. The preparation method has the beneficial effects that (1) a novel wet bonding technique is provided, the coiled material and structural concrete are permanently and organically combined, no water channeling hazards exist between the coiled material and the structural concrete, and the reliability of a waterproof layer is improved; (2) the impact resistant performance and the puncture resistant performance are excellent, and the construction load which directly acts on the pre-laid waterproof coiled material and the impact of a steel skeleton can be born; (3) strong chemical resistance is provided; (4) the construction is convenient, and a leveling blanket is not needed; (5) the waterproof coiled material and a basic layer are in border adhibiting without influence of sedimentation deformation of the basic layer.

Description

technical field [0001] The invention relates to a non-asphalt-based pre-paved building waterproof coiled material, in particular to a preparation method of a pre-paved waterproof coiled material bonded with concrete mortar. Background technique [0002] One of the problems that has plagued the industry for decades in underground waterproofing projects is the waterproofing quality of the bottom plate and side walls without construction space. There are two reasons, one is water leakage. Traditional waterproof materials can only be waterproofed with external protection and internal waterproofing. The waterproof membrane is pasted to the base layer instead of bonding to the structural concrete itself. Once the membrane is damaged, groundwater will flow between the waterproof layer and the structural concrete, and enter the building from the cracks in the concrete. The second subsidence effect. When the traditional waterproof material is bonded to the base layer, once the fou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/12B32B37/15B32B27/06B32B27/32B32B27/18B32B7/12
Inventor 张广彬杜奎义吕国松
Owner 胜利油田大明新型建筑防水材料有限责任公司
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