High-ductility modified hard asphalt and preparation method thereof

A hard asphalt, modified technology, applied in building components, building insulation materials, buildings, etc., can solve the problems that affect the service life of asphalt, cannot take into account high temperature stability and low temperature crack resistance, and supply exceeds demand, so as to reduce road maintenance Cost, important market value and social value, effect of extending service life

Inactive Publication Date: 2017-07-25
詹澍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the development scale of asphalt and the demand of our domestic market, the Chinese asphalt market is still in a state of short supply, especially those high-end modified asphalt markets, which have huge market vacancies
Existing modified asphalt materials generally have defects that cannot balance high temperature stability and low temperature crack resistance, which affects the service life of asphalt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-ductility modified hard asphalt is made from the following raw materials in parts by weight: 130 parts of petroleum asphalt, 10 parts of methyl silicone rubber powder, 18 parts of methyl vinyl silicone rubber powder, 11 parts of modified kaolin, partial 5 parts of barium borate, 12 parts of sulfated castor oil, 5 parts of trimellitic anhydride, 2 parts of alkylphenol polyoxyethylene ether, 3 parts of allyl methacrylate, 4 parts of sodium thioglycolate.

[0023] The modified kaolin is obtained through the following steps: mix kaolin with 10% citric acid aqueous solution of the same weight, put it into an ultrasonic processor for ultrasonic treatment for 50 minutes, then let it stand for 16 hours, filter, and dry the filter cake at 120°C , heated up to 550°C, held for 1 hour, cooled naturally, ground, and passed through a 100-mesh sieve to obtain modified kaolin, wherein the ultrasonic processing power of the ultrasonic processor was 1100W.

[0024] In the present ...

Embodiment 2

[0031] A high-ductility modified hard asphalt, made of the following raw materials in parts by weight: 133 parts of petroleum asphalt, 11 parts of methyl silicone rubber powder, 19 parts of methyl vinyl silicone rubber powder, 14 parts of modified kaolin, partial 8 parts of barium borate, 14 parts of sulfated castor oil, 6 parts of trimellitic anhydride, 3 parts of alkylphenol polyoxyethylene ether, 5 parts of allyl methacrylate, 7 parts of sodium thioglycolate.

[0032] The modified kaolin is obtained by the following steps: mixing kaolin with 10% citric acid aqueous solution of the same weight, putting it into an ultrasonic processor for ultrasonic treatment for 53 minutes, then standing for 17 hours, filtering, and drying the filter cake at 120°C , heat up to 550°C, keep warm for 1.5h, cool naturally, grind, and pass through a 100-mesh sieve to obtain modified kaolin, wherein the ultrasonic processing power of the ultrasonic processor is 1100W.

[0033] In the present embod...

Embodiment 3

[0040] A high-ductility modified hard asphalt is made from the following raw materials in parts by weight: 135 parts of petroleum asphalt, 12 parts of methyl silicone rubber powder, 20 parts of methyl vinyl silicone rubber powder, 13 parts of modified kaolin, partial 7 parts of barium borate, 13 parts of sulfated castor oil, 7 parts of trimellitic anhydride, 4 parts of alkylphenol polyoxyethylene ether, 5 parts of allyl methacrylate, 6 parts of sodium thioglycolate.

[0041] The modified kaolin is obtained by the following steps: mixing kaolin with 10% citric acid aqueous solution of the same weight, putting it into an ultrasonic processor for ultrasonic treatment for 55 minutes, then standing for 18 hours, filtering, and drying the filter cake at 125°C , heat up to 580°C, keep warm for 1.5h, cool naturally, grind, and pass through a 200-mesh sieve to obtain modified kaolin, wherein the ultrasonic processing power of the ultrasonic processor is 1100W.

[0042] In the present e...

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PUM

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Abstract

The invention discloses high-ductility modified hard asphalt, which is prepared from the following raw materials in parts by weight: 130 to 140 parts of petroleum asphalt, 10 to 14 parts of methyl silicone rubber powder, 18 to 22 parts of methyl vinyl silicone rubber powder, 11 to 15 parts of modified kaolin, 5 to 9 parts of barium metaborate, 12 to 15 parts of sulfated castor oil, 5 to 8 parts of trimellitic anhydride, 2 to 5 parts of alkylphenol ethoxylate, 3 to 6 parts of allyl methacrylate and 4 to 8 parts of sodium thioglycollate. The invention also discloses a preparation method of the high-ductility modified hard asphalt. The prepared modified hard asphalt has high ductility, and has good high-temperature stability and low-temperature anti-cracking performance; important market values and social values are realized.

Description

technical field [0001] The invention relates to the technical field of asphalt materials, in particular to a high-ductility modified hard asphalt and a preparation method thereof. Background technique [0002] Bitumen is a material commonly used in the preparation of paving and roofing materials. In the road-building and road-laying industries, it is a well-established and practical method to coat aggregate materials, such as sand, gravel, crushed stone, or mixtures thereof, with hot fluid bitumen and apply the coated material to the roadbed or The previously constructed road is laid in a uniform layer and rolled by a heavy-duty roller to compact the uniform layer to form a smooth-surfaced road. [0003] Since the reform and opening up, China's economy has maintained a high-speed growth, road traffic construction has advanced by leaps and bounds, and my country's road asphalt production enterprises have also developed rapidly. In particular, heavy traffic asphalt and modif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L83/04C08L83/07C08L91/00C08L71/02C08K13/06C08K9/04C08K3/34C08K3/38C08K5/1539
CPCC08L95/00C08L2201/08C08L2205/02C08L2205/035C08L83/04C08L91/00C08L71/02C08K13/06C08K9/04C08K3/346C08K3/38C08K5/1539
Inventor 詹澍
Owner 詹澍
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