Composite asphalt stress absorption membrane and preparation method thereof

A technology of stress absorption and composite asphalt, which is applied in the direction of asphalt layered products, chemical instruments and methods, synthetic resin layered products, etc. It can solve problems such as engineering quality accidents and poor construction control, so as to prolong the service life and prevent road surface Cracks and associated damage, reducing the effect of opening deformation

Pending Publication Date: 2017-05-31
南京道路德克特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, slippage is likely to occur between the asphalt pavement and the old cement pavement, and poor construction control will cause engineering quality accidents

Method used

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  • Composite asphalt stress absorption membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] 1) Preparation of high molecular polymer modified asphalt for upper composite layer and lower composite layer

[0061] 1-1) Heat the SBS modified bitumen to 220℃ to melt and then transport it to the mixing tank;

[0062] 1-2) Add rubber powder and stir for 5 hours to make the rubber powder and SBS modified asphalt mix uniformly, during which the temperature in the mixing tank is maintained at 200-220℃;

[0063] 1-3) After the rubber powder and SBS modified asphalt are evenly mixed, add additive one and additive two and mix evenly for 1.5 hours;

[0064] 1-4) Add petroleum resin and stir 40;

[0065] 1-5) Add talcum powder and stir for 35 minutes;

[0066] 2) Combination of upper composite layer, lower composite layer and tire base

[0067] Spread the high-modulus tire base fabric, namely polyester filament geotextile or polyester fiberglass cloth, and immerse it in the asphalt pool, and attach the polymer modified asphalt in the asphalt pool to the upper and lower surfaces of the t...

Embodiment 2

[0072] 1) Preparation of high molecular polymer modified asphalt for upper composite layer and lower composite layer

[0073] 1-1) Heat the SBS modified bitumen to 220℃ to melt and then transport it to the mixing tank;

[0074] 1-2) Add rubber powder and stir for 6 hours to make the rubber powder and SBS modified asphalt mix uniformly, during which the temperature in the mixing tank is maintained at 200-220℃;

[0075] 1-3) After the rubber powder and SBS modified asphalt are evenly mixed, add additive one and additive two and mix evenly for 2 hours;

[0076] 1-4) Add petroleum resin and stir for 45 minutes;

[0077] 1-5) Add talcum powder and stir for 40 minutes.

[0078] 2) Combination of upper composite layer, lower composite layer and tire base

[0079] Spread the high-modulus tire base fabric, namely polyester filament geotextile or polyester fiberglass cloth, and immerse it in the coating pool, and attach the polymer modified asphalt in the coating pool to the upper and lower surface...

Embodiment 3

[0084] 1) Preparation of high molecular polymer modified asphalt for upper composite layer and lower composite layer

[0085] 1-1) Heat the SBS modified bitumen to 220℃ to melt and then transport it to the mixing tank;

[0086] 1-2) Add rubber powder and stir for 6.5 hours to make the rubber powder and SBS modified asphalt mix uniformly, during which the temperature in the mixing tank is maintained at 200-220℃;

[0087] 1-3) After the rubber powder and SBS modified asphalt are evenly mixed, add additive one and additive two and mix evenly for 2.5 hours;

[0088] 1-4) Add petroleum resin and stir for 50 minutes;

[0089] 1-5) Add talc and stir for 45 minutes.

[0090] 2) Combination of upper composite layer, lower composite layer and tire base

[0091] Spread the high modulus tire base fabric, namely polyester filament geotextile or polyester glass fiber cloth, and immerse it in the coating pool, and attach the polymer modified asphalt in the coating pool to the upper and lower surfaces of...

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Abstract

The invention discloses a composite asphalt stress absorption membrane and a preparation method thereof, belongs to the field of road construction, and particularly relates to an anti-cracking waterproof sealing membrane applicable to asphalt pavement. The composite asphalt stress absorption membrane comprises a wear-resistant isolation layer, an upper composite layer, a base, a lower composite layer and a protection layer arranged sequentially from top to bottom; the wear-resistant isolation layer consists of quartz sand of 20-40 meshes; the upper composite layer and the lower composite layer both consist of high molecular polymer modified asphalt; a high-density polyethylene (PE) membrane is adopted for the protection layer; the base is high-modulus base cloth; the high-modulus base cloth is polyester filament geotextile or polyester glass fiber cloth. The preparation method comprises the following steps: 1) preparing high molecular polymer modified asphalt of the upper composite layer and lower composite layer; 2) combining the upper composite layer, the lower composite layer and the base; 3) pasting the protection layer and the wear-resistant isolation layer; and 4) cooling, cutting and rolling.

Description

Technical field [0001] The composite asphalt stress absorbing membrane of the present invention and its preparation method belong to the field of road construction, in particular to an anti-cracking and waterproofing method suitable for adding an asphalt surface layer on an asphalt pavement structure base layer and an additional asphalt surface layer on an old cement road surface Sealing film. Background technique [0002] With the rapid increase in traffic volume and heavy loads in my country, semi-rigid bases based on cement-stabilized crushed stone have been widely used because of their strong board and high bearing capacity. However, since the semi-rigid material binder is cement, its own temperature shrinkage and dry shrinkage properties can easily cause the base layer to crack when the external temperature and humidity change. [0003] Asphalt pavement and other diseases caused by reflective cracks in semi-rigid base are inevitable. The road engineering community has been ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/14E01C7/18E01C11/00B32B9/00B32B11/04B32B27/02B32B27/06B32B27/32B32B17/02B32B17/06
CPCE01C7/147E01C7/185E01C7/187E01C11/005B32B5/02B32B9/002B32B11/04B32B11/046
Inventor 梁岳梁素根吴素芳钱润明高清清
Owner 南京道路德克特新材料科技有限公司
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