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High-polymer modified pitch, its water-proof roll material and use thereof

A technology of polymer modification and waterproof membrane, which is applied in the direction of roofing, building structure, building insulation material, etc. using flexible materials, which can solve the problem of poor construction reliability, fatigue resistance, and aging resistance, which cannot fully meet the waterproofing of railway bridges. requirements, etc., to achieve the effect of excellent fatigue resistance

Active Publication Date: 2007-11-14
JINZHOU DONGFANG YUHONG BUILDING MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the construction reliability of this material is poor, and its anti-fatigue and anti-aging properties cannot fully meet the waterproof requirements of railway bridges.

Method used

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  • High-polymer modified pitch, its water-proof roll material and use thereof
  • High-polymer modified pitch, its water-proof roll material and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The polymer modified asphalt in this example consists of the following components: 510kg base asphalt, 70kg blend oil, 140kg SBS, 90kgAPAO, 40kgIPP (polypropylene), 150kg stone powder (200 mesh).

[0055] The base bitumen is 90# bitumen processed from Oli crude oil imported from Venezuela by Qinhuangdao, Yanshan Petrochemical 4402 grade is selected for SBS, APAO (melt index 0.3g / 10min) is produced by Liaoyang Liaohua Qida Chemical Co., Ltd., IPP Yanshan Petrochemical polypropylene 9020 is selected, and the blending oil is Liaohe decompression third-line oil (density 0.94g / ml).

[0056] The preparation process of polymer modified asphalt is as follows:

[0057] 1) First add 510kg of base asphalt and 70kg of blending oil, and raise the temperature to 180°C;

[0058] 2) Then add 140kg SBS therein;

[0059] 3) Heat up to 185°C, swell for 1 hour, and then start the colloid mill to grind for 2 hours until no small particles are visible to the naked eye;

[0060] 4) Then ad...

Embodiment 2

[0068] Basically the same as Example 1, the difference is that the polymer modified asphalt is composed of the following components: 450kg base asphalt (140# asphalt), 80kg blend oil, 130kgSBS, 70kgAPAO (melt index 1.0g / 10min), 70kg poly Ethylene, 200kg dolomite powder (300 mesh).

[0069] The preparation process of polymer modified asphalt is as follows:

[0070] 1) First add 450kg of base asphalt and 80kg of blending oil, and heat up to 170°C;

[0071] 2) Then add 130kg SBS therein;

[0072] 3) Heat up to 180°C, swell for 2 hours, then start the colloid mill and grind for 3 hours until no small particles are visible to the naked eye;

[0073] 4) Then add 70kg APAO and 70kg polyethylene, control the temperature at 190°C, stir and mix for 3 hours;

[0074] 5) Finally, add 200kg of dolomite powder and stir at high speed for 50 minutes;

[0075] 6) Inspection, after passing the test, put it into the storage tank and prepare for on-line production.

[0076] The structure of ...

Embodiment 3

[0079] Basically the same as Example 1, the difference is that the polymer modified asphalt is composed of the following components: 550kg base asphalt (100# asphalt), 40kg and oil, 120kgSBS, 90kgAPAO (melt index 0.6g / 10min), 20kg poly Styrene, 180kg light calcium powder (150 orders).

[0080] The preparation process of polymer modified asphalt is as follows:

[0081] 1) First add 550kg of base asphalt and 40kg of blending oil, and raise the temperature to 175°C;

[0082] 2) Then add 120kg SBS therein;

[0083] 3) Heat up to 185°C, swell for 1 hour, and then start the colloid mill to grind for 2 hours until no small particles are visible to the naked eye;

[0084] 4) Then add 90kg APAO and 20kg polystyrene, control the temperature at 195°C, stir and mix for 2 hours;

[0085] 5) Finally, add 180kg of light calcium powder and stir at high speed for 60 minutes;

[0086] 6) Inspection, after passing the test, put it into the storage tank and prepare for on-line production.

...

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Abstract

The invention provides a polymer modified asphalt, and the weight of the components comprising as follows :45-55% matrix asphalt, 4 - 8% blend oil, 12 - 14% of SBS ,5-9 % APAO, 2-7% of High-temperature improvement and 15-20% filler. It also offers polymer modified asphalt, which made of waterproof membrane and the railway bridge, highway bridge deck waterproofing project applications. The invention of these waterproofing membrane have a high standard of waterproof function, it can withstand high intensity of railway bridge and particularly high stress dynamic load .It also have excellent performance on water-resistance, high and low temperature resistance, adhesion, crack resistance, fatigue resistance and other aspects .it can be used for railway bridge and the road deck waterproofing works.

Description

technical field [0001] The invention relates to a modified asphalt, in particular to a high polymer modified asphalt, its waterproof coiled material and its application. Background technique [0002] Polymer modified asphalt membrane is widely used in the waterproofing of roofs, walls, toilets, basements, cold storages, pools, underground pipelines and other projects of various building structures. Since 1991, modified asphalt membranes have been applied in highway and bridge deck waterproofing projects. In 1995, they became mature and in line with international standards in material selection and practice. The modified asphalt membranes that have been used include ordinary glass fiber tire SBS modified asphalt membranes, PE membrane tire modified asphalt membranes and polyester tire APP modified asphalt membranes. Heat-resistant APP modified bitumen membrane. [0003] Ordinary polymer-modified asphalt coils have always been produced by the building materials department, a...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08K3/00C09K3/18E04D5/10C08L53/02C08L23/06C08L23/12C08L25/06
Inventor 李卫国王新田凤兰
Owner JINZHOU DONGFANG YUHONG BUILDING MATERIALS
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