High-strength modified asphalt resistant to high temperature and low temperature and production method thereof

A modified asphalt, high and low temperature resistant technology, used in building thermal insulation materials, building components, buildings, etc., can solve problems such as hidden dangers left by road maintenance, inability to adapt to colder places, and inability to withstand winter temperatures.

Inactive Publication Date: 2021-04-30
亿虎控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the research and development products have great limitations in application, such as not being able to adapt to use in colder places, or not being able to tolerate colder winter temperatures, etc., leaving hidden dangers for later road maintenance

Method used

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  • High-strength modified asphalt resistant to high temperature and low temperature and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This example is to prepare a high-strength modified asphalt resistant to high and low temperature, and the specific operation is as follows:

[0028] 100 tons of PG76-22 modified asphalt is rapidly raised from the raw material tank to 180°C through a plate heat exchanger, pumped into a 150-ton finished product tank, and 12 tons of Xinjiang Karamay rock asphalt is slowly added to the finished product tank through a conveyor , start stirring, heat and keep the temperature at 170-180°C, and control the feeding time for 3-4 hours. After the feeding is completed, continue stirring for 2 hours, add 0.8 tons of C9 petroleum resin and 0.5 tons of BN500A polyethylene wax PE, and continue stirring for 4 hours. Hours, the high-strength modified asphalt is prepared for future use.

Embodiment 2

[0030] This example is also to prepare a high-strength modified asphalt resistant to high and low temperature, and the specific operation is consistent with Example 1:

[0031] 100 tons of PG76-22 modified asphalt is rapidly raised to 180°C through a plate heat exchanger from the raw material tank, pumped into a 150-ton finished product tank, and 14 tons of Buton rock asphalt is slowly added to the finished product tank through a conveyor , start stirring, heat and keep the temperature at 170-180°C, and control the feeding time at 3-4 hours. After the feeding is completed, continue stirring for 2 hours, add 1.2 tons of C5 petroleum resin and 0.6 tons of BN500 polyethylene wax PE, and continue stirring for 3 Hours, the high-strength modified asphalt is prepared for future use.

Embodiment 3

[0033] This example is also to prepare a high-strength modified asphalt resistant to high and low temperature, and the specific operation is also consistent with Example 1:

[0034] 100 tons of PG76-22 modified asphalt is rapidly raised from the raw material tank to 180°C through a plate heat exchanger, pumped into a 150-ton finished product tank, and 13 tons of Buton rock asphalt is slowly added to the finished product tank through a conveyor , start stirring, heat and keep the temperature at 170-180°C, and control the feeding time at 3-4 hours. After the feeding is completed, continue to stir for 2 hours, add 1.0 tons of C5 / C9 copolymer resin and 1.0 tons of BN250 polyethylene wax PE, and continue Stir for 4 hours to prepare high-strength modified asphalt for future use.

[0035] Embodiment 4 effect example

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Abstract

The invention discloses high-strength modified asphalt resistant to high temperature and low temperature and a production method of the high-strength modified asphalt. The high-strength modified asphalt comprises the following components in parts by weight: 100 parts of PG76-22 modified asphalt, 10-15 parts of rock asphalt powder, 0.6-1.5 parts of petroleum resin and 0.5-1.0 part of polyethylene wax. On the basis of the existing PG76-22 modified asphalt, rock asphalt powder, petroleum resin and polyethylene wax are added to prepare the high-strength modified asphalt with high and low temperature resistance. The rock asphalt powder, the petroleum resin and the polyethylene wax are added to solve the defect that the PG76-22 modified asphalt is not resistant to low temperature; meanwhile, the high-temperature-resistant characteristic of the PG76-22 modified asphalt is retained. The 25 DEG C needle penetration of the asphalt is 30 or below and the softening point reaches 90 DEG C or above; the asphalt has a good elastic recovery index, the temperature range suitable for high-strength modified asphalt is widened, the requirement for asphalt road use in a low-temperature environment is met, and the asphalt has good practical and promotional value.

Description

technical field [0001] The invention relates to a high-strength modified asphalt resistant to high and low temperature and a production method thereof. Background technique [0002] The rutting phenomenon of asphalt pavement has become one of the most serious damage forms of asphalt pavement. How to effectively prevent rutting disease, in addition to optimizing the pavement structure combination, how to improve the high-temperature stability of asphalt itself and obtain high-strength modified asphalt, is important in preventing Road rutting disease has received more and more attention. [0003] At present, most of the research on high-strength modified asphalt is aimed at improving the high-temperature stability of asphalt. Its main technical means: on the one hand, it is to improve the high-temperature performance of the mixture by adjusting the gradation and improving the design method of the mix ratio; High temperature performance to improve the modulus and shear resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L57/02C08L23/06
CPCC08L95/00C08L2201/08C08L2205/035C08L2205/025C08L57/02C08L23/06
Inventor 王海荣吴亚俊
Owner 亿虎控股有限公司
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