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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 and building insulation material using flexible materials. It can achieve the effect of wide plastic range and service temperature range, high tensile strength and excellent water resistance.

Active Publication Date: 2009-06-10
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
  • 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 of this embodiment is composed of the following components: 510kg base asphalt, 70kg blending oil, 140kg SBS, 90kg APAO, 40kg IPP (polypropylene), 150kg stone powder (200 mesh).

[0055] The base bitumen is selected from the 90# bitumen processed by Qinhuangdao imported from Venezuela’s Aoli crude oil. SBS is selected from Yanshan Petrochemical 4402, and APAO (melting index 0.3g / 10min) is selected from Liaoyang Liaohua Qida Chemical Co., Ltd., IPP Yanshan Petrochemical Polypropylene 9020 is selected, and the blended oil is Liaohe Vacuum Third-line Oil (density 0.94g / ml).

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

[0057] 1) First add 510kg base pitch and 70kg blending oil, and heat up to 180℃;

[0058] 2) Then add 140kg SBS to it;

[0059] 3) Raise the temperature to within 185°C, swell for 1 hour, then start the colloid mill for grinding for 2 hours, until no small particles are visible to the naked eye;

[006...

Embodiment 2

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

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

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

[0071] 2) Then add 130kg SBS to it;

[0072] 3) Raise the temperature to within 180℃, swell for 2h, then start the colloid mill to grind for 3h, until there are no small particles visible to the naked eye;

[0073] 4) Add 70kg APAO and 70kg polyethylene, control the temperature at 190℃, and stir and mix for 3h;

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

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

[0076] The structure of the waterproof membrane...

Embodiment 3

[0079] Basically the same as Example 1, except that the polymer modified asphalt is composed of the following components: 550kg base asphalt (100# asphalt), 40kg blending oil, 120kg SBS, 90kg APAO (melting index 0.6g / 10min), 20kg polymer Styrene, 180kg light calcium powder (150 mesh).

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

[0081] 1) First add 550kg base asphalt and 40kg blending oil, and heat up to 175℃;

[0082] 2) Then add 120kg SBS to it;

[0083] 3) Raise the temperature to within 185°C, swell for 1 hour, then start the colloid mill for grinding for 2 hours, until no small particles are visible to the naked eye;

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

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

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

[0087] Polymer modified asphalt is made in...

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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 polymer modified asphalt, its waterproof coiled material and its application. Background technique [0002] Polymer modified asphalt membranes are widely used in the waterproofing of roofs, walls, toilets, basements, cold storages, pools, and underground pipelines of various building structures. Beginning in 1991, modified asphalt membranes have been used in highway bridge deck waterproofing projects. In 1995, they matured and were in line with international standards in material selection and practices. The modified asphalt coils used in the past include ordinary glass fiber tire SBS modified asphalt coils, PE film tire modified asphalt coils and polyester tire APP modified asphalt coils. Then, special high-speed road bridge decks appeared. Heat-resistant APP modified asphalt coil. [0003] Ordinary polymer modified asphalt coils have always been produced by the building materials department, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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