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Heavy load resistant anti-rut agent and preparation method thereof

An anti-rutting agent and load-bearing technology, which is applied in the field of road maintenance, can solve the problems of unsatisfactory anti-rutting performance, and achieve the effects of improving anti-rutting performance, good heavy load resistance, and increasing internal friction angle

Inactive Publication Date: 2017-11-03
谢新昇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to provide a heavy-load-resistant anti-rutting agent and its preparation method in view of the defect that the existing anti-rutting agent has an unsatisfactory anti-rutting performance on the road surface under heavy load conditions or under heated conditions.

Method used

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  • Heavy load resistant anti-rut agent and preparation method thereof
  • Heavy load resistant anti-rut agent and preparation method thereof

Examples

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example 1

[0022] Take the rice husk and wash it, mix the washed rice husk with 10% sodium hydroxide solution in a mass fraction of 1:10, heat in a water bath at 90°C and filter to obtain a filter cake, rinse it with deionized water for 3 times Dry in a tube atmosphere furnace at 125°C for 25 minutes, then pass nitrogen to remove the air, control the nitrogen flow rate to 100mL / min, raise the temperature to 450°C at 5°C / min under nitrogen protection, keep it warm for 1 hour, and then let it cool down to room temperature , to obtain carbonized rice husks, weigh 45 parts of carbonized rice husks, 10 parts of sodium fluoride and 15 parts of nano-iron powder, stir and mix them in a graphite crucible, and place the graphite crucible at 1250 ° C under argon Sintering treatment under air atmosphere for 3 hours, after the sintering is completed, stop feeding argon and naturally cool to 650°C, after oxidation treatment for 5 hours, naturally cool to room temperature, collect the calcined particles...

example 2

[0024]Take the rice husk and wash it, mix the washed rice husk with 10% sodium hydroxide solution in a mass fraction of 1:10, heat in a water bath at 93°C and filter to obtain a filter cake, rinse it with deionized water for 4 times Dry in a tube atmosphere furnace at 128°C for 28 minutes, then pass nitrogen to remove the air, control the nitrogen flow rate to 125mL / min, raise the temperature to 475°C at 5°C / min under the protection of nitrogen, keep it warm for 1 hour, and then let it cool down to room temperature , to obtain carbonized rice husks, weigh 48 parts of carbonized rice husks, 13 parts of sodium fluoride and 18 parts of nano-iron powder, stir and mix them in a graphite crucible, and place the graphite crucible at 1375 ° C under argon Sintering treatment under air atmosphere for 4 hours, after the sintering is completed, stop feeding argon and naturally cool to 725°C, after oxidation treatment for 6 hours, naturally cool to room temperature, collect the calcined par...

example 3

[0026] Take the rice husk and wash it, mix the washed rice husk with 10% sodium hydroxide solution at a mass fraction of 1:10, heat in a water bath at 95°C and filter to obtain a filter cake, rinse with deionized water for 5 times Dry in a tube atmosphere furnace at 130°C for 30 minutes, then pass nitrogen to remove the air, control the nitrogen flow rate to 150mL / min, raise the temperature to 500°C at 5°C / min under nitrogen protection, keep warm and carbonize for 2 hours, then let it stand and cool to room temperature , to obtain carbonized rice husks, weigh 50 parts of carbonized rice husks, 15 parts of sodium fluoride and 20 parts of nano-iron powder, stir and mix them in a graphite crucible, and place the graphite crucible at 1500 ° C under argon Sintering treatment under air atmosphere for 5 hours, after the sintering is completed, stop feeding argon and naturally cool to 800 ° C, after oxidation treatment for 7 hours, naturally cool to room temperature, collect the calcin...

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Abstract

The invention belongs to the technical field of road maintenance and particularly relates to a heavy load resistant anti-rut agent and a preparation method thereof. The preparation method disclosed by the invention comprises the following steps: washing rice husks, and heating and filtering with a sodium hydroxide solution so as to obtain a filter cake; washing, drying, maintaining the temperature and carbonizing so as to obtain the carbonized rice husk; sintering with sodium fluoride and nano iron powder and performing oxidation treatment; collecting calcined particles, mixing and standing with a hydrofluoric acid solution; filtering, and drying to obtain modified particles; mixing sodium hydroxide with a magnesium sulfate solution, and dispersing with the modified particles so as to obtain precursor slurry, carrying out a high-pressure reaction, and filtering to obtain filter residues; washing, drying, performing mixed extrusion granulation with natural rock asphalt, polyvinyl butyral, polycarbonate and the like; finally, cooling, so as to obtain the heavy load resistant anti-rut agent. According to the heavy load resistant anti-rut agent disclosed by the invention, the rut resistance of a concrete pavement under heavy load and high temperature conditions can be effectively improved, and the rut resistance is improved, therefore, the pavement rut diseases are effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of road maintenance, and in particular relates to a heavy load-resistant anti-rutting agent and a preparation method thereof. Background technique [0002] Rutting is a common disease of asphalt pavement in high temperature season. Due to the continuous increase of traffic volume and axle load in recent years, rutting of asphalt pavement accounts for a large proportion of the diseases of asphalt pavement, and it appears earlier and earlier. More and more, the degree is getting more and more serious. Especially in some areas of our country where there are many extreme environments such as high temperature and rain, the damage of asphalt concrete pavement such as high temperature rutting and water damage is more serious, and bridge deck paving often suffers from high temperature, rutting, delamination and other diseases. Most of the ruts occur on the roads with heavy traffic volume and many heavy vehicles, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/36C04B20/02
CPCC04B40/0039C04B20/023C04B24/36C04B24/30C04B24/045C04B24/08C04B24/286C04B18/248C04B22/04C04B22/126C04B22/08C04B22/062
Inventor 葛贝季美潘宏梅
Owner 谢新昇
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