Saline-alkali tolerant polymer modified asphalt, waterproof roll material and preparation method of waterproof roll material

A polymer, saline-alkali-resistant technology, used in water conservancy projects, building structures, building insulation materials, etc., can solve the problems of short service life of waterproof membranes, and achieve strong resistance to pressure water, excellent high and low temperature resistance, The effect of adaptability

Active Publication Date: 2012-12-12
JINZHOU DONGFANG YUHONG BUILDING MATERIALS
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of short service life of the existing waterproof coiled material in the marine environment, to achieve the purpose of salt-alkali resistance, corrosion resistance, and simple waterproof construction

Method used

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  • Saline-alkali tolerant polymer modified asphalt, waterproof roll material and preparation method of waterproof roll material
  • Saline-alkali tolerant polymer modified asphalt, waterproof roll material and preparation method of waterproof roll material
  • Saline-alkali tolerant polymer modified asphalt, waterproof roll material and preparation method of waterproof roll material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The ratio by mass percentage is as follows: asphalt 100, saline-alkali-resistant modifier 20, polymer modifier 20, and the accurately weighed asphalt, polymer modifier, saline-alkaline modifier Stir the agent to achieve macroscopic uniformity. After the membrane forming process, the salt-resistant and alkaline polymer modified bitumen waterproof membrane is tested according to the national standard GB18242-2000 "Elastomer Modified Bitumen Waterproof Membrane", and it is resistant to chloride ion penetration. The performance test is carried out according to the industry standard JTJ 275-2000 "Technical Code for Anti-corrosion of Concrete Structures in Harbor Engineering". The test results are shown in Table 1.

Embodiment 2

[0029] The ratio by weight percentage is as follows: asphalt 100, salt-alkali-resistant modifier 25, polymer modifier 25, add accurately weighed asphalt, salt-alkali-resistant modifier, polymer The modifier is stirred to achieve macroscopic uniformity, and the salt-alkali-resistant polymer-modified asphalt waterproofing membrane is obtained through a membrane forming process. The performance test is carried out according to the national standard GB18242-2000 "Elastomer Modified Bituminous Waterproof Membrane". The performance test of the chloride ion permeability is carried out according to the industry standard JTJ 275-2000 "Technical Specifications for Anti-corrosion of Concrete Structures in Harbor Engineering". The test results are shown in the table 2.

Embodiment 3

[0031] The ratio by weight percentage is as follows: asphalt 100, salt and alkali resistance modifier 27, polymer modifier 18, and accurately weighed asphalt, polymer modifier, salt and alkali resistance The modifier is stirred to achieve macroscopic uniformity, and the salt-alkali-resistant polymer-modified asphalt waterproofing membrane is obtained through a membrane forming process. The performance test is carried out according to the national standard GB18242-2000 "Elastomer Modified Bitumen Waterproof Membrane", and the performance test is carried out according to the industry standard JTJ 275-2000 "Technical Specifications for Anti-corrosion of Concrete Structures of Harbor Engineering". The results are shown in Table 3.

[0032] Table 1 Test results of salt-alkali-resistant polymer modified bitumen waterproof membrane in Example 1

[0033]

[0034] Table 2 Test results of salt-alkali-resistant polymer modified bitumen waterproof membrane in Example 2

[0035]

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Abstract

The invention provides a saline-alkali tolerant polymer modified asphalt which is characterized by containing the following ingredients in parts by weight: 100 parts of asphalt, 18-32 parts of saline-alkali tolerant modifier, and 15-30 parts of polymer modifier, wherein the saline-alkali tolerant modifier can be superfine silicon micro-powder, polypropylene short fibers or superfine fibers with the particle size less than 1 mu m, and the polymer modifier is selected from butadiene-styrene-butadiene copolymer, butadiene styrene rubber and ethylene-vinyl acetate copolymer, amorphous poly alpha olefin (APAO), random polypropylene and polypropylene. The invention further provides a saline-alkali tolerant polymer modified asphalt waterproof roll material which has a three-layer composite structure, wherein an intermediate layer is made of a long fiber polyester non-woven fabric, and the upper surface and the lower surface of the long fiber polyester non-woven fabric are respectively provided with a saline-alkali tolerant polymer modified asphalt layer. The invention further provides a preparation method of the roll material.

Description

technical field [0001] The invention relates to a waterproof material for construction engineering, in particular to a saline-alkali-resistant polymer modified asphalt, a waterproof roll containing the modified asphalt and a preparation method thereof. Background technique [0002] With the progress of human civilization and the expansion of living space, and the continuous development of modern building technology, the field of human development and construction has extended from land to the ocean, which accounts for 70% of the earth's area, and the marine environment is very important for the construction of infrastructure and buildings. The material is extremely bad. With the passage of time, it has recently been found that more and more waterproof materials, such as asphalt-based waterproof membranes, are cracked and damaged due to the corrosion of other materials when they are in a corrosive medium environment. [0003] In fact, the primary factor affecting the durabil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K3/34C08K7/02C08L23/12C08L53/02C08L9/06C08L23/08E02B3/16
Inventor 史俊红
Owner JINZHOU DONGFANG YUHONG BUILDING MATERIALS
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