Weather resistant modified bitumen waterproof membrane

A technology of modified asphalt and waterproof membranes, which is applied in the field of chemical materials for construction, can solve the problems of affecting air environment quality and personal safety, affecting the service life of waterproof functional materials, and various performances cannot be maintained for a long time, so as to improve the aging speed Fast, good construction performance, good creep effect

Active Publication Date: 2017-01-11
JINZHOU DONGFANG YUHONG BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the current modified asphalt membrane is used for a long time, the mineral particles on the surface are easy to fall off, and the modified asphalt is easy to age, resulting in a large number of cracks or cracks on the surface of the waterproof layer, which affects the waterproof function and the service life of the material.
In addition, in order to improve the construction progress and bonding effect, the construction temperature is generally above 200°C, and volatile gas overflows during the construction process, which affects the air environment quality and personal safety. Moreover, the aging performance of asphalt is accelerated under high temperature environment. To a certain extent, it also leads to the reduction of waterproof life.
[0005] In order to solve the above problems in the early stage, the applicant tried to use modified asphalt coating to wrap the upper and lower surfaces of the glass fiber felt to prolong the service life, and applied for the invention patent 201410071832. The problem is that this product cannot maintain its various properties for a long time at high temperature, and it is prone to volatilization and pollution to the environment; specifically, the applicable construction temperature of this product is not higher than 70°C, usually lower than 50°C, suitable for narrow range

Method used

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  • Weather resistant modified bitumen waterproof membrane
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of weather resistance modified asphalt

[0026] Add 20g of 90# petroleum asphalt to 80g of molten lake asphalt, heat up to 185°C, add 12g of thermoplastic elastomer SBS4402, heat up to 185°C-195°C, start colloidal grinding, homogenization time is 2 hours; add 20g For light calcium carbonate, keep the temperature at 180°C to 185°C. After stirring for 1 hour, add 0.10g of ultraviolet absorber and stir for 0.5h to make weather-resistant modified asphalt for later use.

[0027] Preparation of heat-melt modified asphalt

[0028] Heat 100g of 200# liquid petroleum asphalt to 170°C, add 18g of thermoplastic elastomer SBS4402 and 6g of plastomer APAO, heat up to 185°C-195°C, start colloidal grinding, and homogenize for 2 hours; add 50g of light Calcium carbonate, the temperature is kept at 180 ℃ ~ 185 ℃ and stirred for 1 hour, and then it is made into a hot-melt modified asphalt for later use.

Embodiment 2

[0030] Preparation of weather resistance modified asphalt

[0031] Add 30g of 90# petroleum asphalt to 70g of molten lake asphalt, heat up to 185°C, add 15g of thermoplastic elastomer SBS4402, heat up to 185°C-195°C, start colloidal grinding, homogenization time is 2 hours; add 30g For light calcium carbonate, keep the temperature at 180°C to 185°C. After stirring for 1 hour, add 0.10g of ultraviolet absorber and stir for 0.5h to make weather-resistant modified asphalt for later use.

[0032] Preparation of heat-melt modified asphalt

[0033] Heat 100g of 200# liquid petroleum asphalt to 170°C, add 18g of thermoplastic elastomer SBS4402 and 6g of plastomer APAO, heat up to 185°C-195°C, start colloidal grinding, and homogenize for 2 hours; add 50g of light Calcium carbonate, the temperature is kept at 180 ℃ ~ 185 ℃ and stirred for 1 hour, and then it is made into a hot-melt modified asphalt for later use.

Embodiment 3

[0035] Preparation of weather resistance modified asphalt

[0036] Add 50g of 90# petroleum asphalt to 50g of molten lake asphalt, heat up to 185°C, add 18g of thermoplastic elastomer SBS4402, heat up to 185°C-195°C, start colloidal grinding, homogenization time is 2 hours; add 40g For light calcium carbonate, keep the temperature at 180°C to 185°C. After stirring for 1 hour, add 0.10g of ultraviolet absorber and stir for 0.5h to make weather-resistant modified asphalt for later use.

[0037] Preparation of heat-melt modified asphalt

[0038] Heat 100g of 200# liquid petroleum asphalt to 170°C, add 18g of thermoplastic elastomer SBS4402 and 6g of plastomer APAO, heat up to 185°C-195°C, start colloidal grinding, and homogenize for 2 hours; add 50g of light Calcium carbonate, the temperature is kept at 180 ℃ ~ 185 ℃ and stirred for 1 hour, and then it is made into a hot-melt modified asphalt for later use.

[0039] Based on the two specifications of modified asphalt prepared i...

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Abstract

The invention discloses a weather-resistant modified asphalt waterproof coiled material, which uses glass fiber felt or polyester felt as a reinforcement body, a weather-resistant modified asphalt layer is coated on the reinforcement body, and a heat-melt modified asphalt layer is coated on the reinforcement body. The asphalt layer, the upper surface of the weather-resistant modified asphalt layer is covered with a mineral particle layer, and the lower surface of the easily hot-melt modified asphalt layer is covered with a polyethylene film. The weather-resistant modified asphalt waterproof membrane of the present invention has long service life, high waterproof performance, good aging resistance, low construction temperature, reduces the aging of modified asphalt under high temperature and environmental pollution, and can be used in different regions and environments Roof waterproofing works for industrial and civil buildings under high temperature.

Description

technical field [0001] The invention relates to a modified asphalt waterproof coiled material with good weather resistance, which belongs to the field of chemical materials for construction. Background technique [0002] Modified asphalt waterproofing membrane plays an extremely important role in building waterproofing engineering, and is widely used in the waterproofing of the ground, underground and other special structures of buildings. It is a wide-ranging and large-scale waterproofing material. The current specifications and varieties of modified asphalt waterproofing membranes have developed from a single asphalt felt in the 1950s to dozens of high and medium-grade membranes with different physical properties. [0003] In foreign countries, modified asphalt waterproofing membranes also occupy a dominant position in waterproofing membranes. At present, there are more than 200 specifications and varieties, such as asphalt-based waterproofing membranes in waterproof mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B11/02B32B11/12B32B17/04B32B27/02B32B27/04B32B27/36B32B27/06B32B27/32
CPCB32B9/002B32B17/02B32B17/068B32B25/08B32B25/10B32B27/02B32B27/14B32B27/32B32B27/36B32B2255/02B32B2307/3065B32B2307/548B32B2307/552B32B2419/04
Inventor 刘金景段文锋贾建军
Owner JINZHOU DONGFANG YUHONG BUILDING MATERIALS
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