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Asphalt road joint filling agent and preparation method thereof

A joint filling agent and asphalt technology, which is applied in the field of asphalt road joint filling agent and its preparation, can solve the problems of poor low temperature performance and high price

Inactive Publication Date: 2015-03-25
HENAN JIAO YUAN ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As an important part of the preventive maintenance technology of asphalt pavement, the joint filling technology has a relatively mature quality in foreign countries, but its corresponding product, the joint filling adhesive, is expensive. Due to the constraints of funds and other factors in China, the choice of crack repair technology and repair materials is arbitrary. , related products often have the problem of generally poor low temperature performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: (1) Mix 3.5 kg of Japanese Kuraray PVA-105 polyvinyl alcohol, 2.5 kg of cobalt tetroxide powder with a particle size of 30-40 nm, 9 kg of propylene glycol methyl ether acetate, and 1 kg of sodium pyrophosphate, and mix them at 155-169 Under the condition of ℃, stir and react for 40 minutes at a speed of 400-500 rpm;

[0014] (2) Mix 3 kg of sodium polyacrylate, 32 kg of Korean SK90 bitumen, 1.2 kg of potassium fluoroaluminate, 4.5 kg of silicon dioxide, and 3 kg of zirconium carbide. Min speed stirring for 25 minutes; then use ultrasonic stirring and dispersing machine for 80 minutes;

[0015] (3) Mix the mixture in step (1) and the mixture in step (2); then add 0.6 kg of 2-ethyl-4-methylimidazole, at 100-110°C, at 500-600 rpm Min speed stirring for 15 minutes Serve.

Embodiment 2

[0016] Example 2: (1) Mix 3 kg of polyvinyl alcohol, 2 kg of cobalt tetraoxide powder with a particle size of 30-40 nm, 8 kg of propylene glycol methyl ether acetate, and 1 kg of sodium pyrophosphate, and mix them at 155-169°C at 400- 500 rpm speed stirring reaction for 40 minutes;

[0017] (2) Mix 3 kg of sodium polyacrylate, 30 kg of Korean SK90 bitumen, 1 kg of potassium fluoroaluminate, 4 kg of silicon dioxide, and 2.5 kg of zirconium carbide. Min speed stirring for 25 minutes;

[0018] (3) Mix the mixture in step (1) and the mixture in step (2); then add 0.5 kg of 2-ethyl-4-methylimidazole, at 100-110°C, at 500-600 rpm Min speed stirring for 15 minutes Serve.

Embodiment 3

[0019] Example 3: (1) Mix 5 kg of polyvinyl alcohol, 3 kg of cobalt tetraoxide powder with a particle size of 30-40 nm, 10 kg of propylene glycol methyl ether acetate, and 1.5 kg of sodium pyrophosphate, and mix them at 155-169°C at 400- 500 rpm speed stirring reaction for 40 minutes;

[0020] (2) Mix sodium polyacrylate 4, Korean SK90 bitumen 35 kg, potassium fluoroaluminate 1.5 kg, silicon dioxide 5 kg, and zirconium carbide 3 kg. stirring speed for 25 minutes;

[0021] (3) Mix the mixture in step (1) and the mixture in step (2); then add 0.8 kg of 2-ethyl-4-methylimidazole, at 100-110°C, at 500-600 rpm Min speed stirring for 15 minutes Serve.

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Abstract

The invention discloses an asphalt road joint filling agent which is prepared from the following raw materials in parts by weight: 3.5 parts of polyvinyl alcohol, 2.5 parts of cobalt oxide powder with the particle size of 30-40 nm, 9 parts of propylene glycol methyl ether acetate, 1 part of sodium pyrophosphate, 3 parts of sodium polyacrylate, 32 parts of Korea SK90# asphalt, 1.2 parts of potassium fluoroaluminate, 4.5 parts of silicon dioxide powder with the particle size of 40-50 nm, 3 parts of zirconium carbide powder with the particle size of 400-500 nm and 0.6 part of 2-ethyl-4-methylimidazole. The asphalt road joint filling agent is prepared through a special formula and a corresponding process; especially due to the addition of composite nanopowder, the overall performance of the asphalt road joint filling agent is improved; the asphalt road joint filling agent is good in waterproof property, adhesion property, elastoplasticity, embedding resistance and durability, and especially outstanding in high temperature stability, low temperature flexibility and extensibility.

Description

technical field [0001] The invention belongs to the field of engineering materials, and relates to an asphalt road joint filling agent and a preparation method thereof. Background technique [0002] After the asphalt pavement is built, various cracks will occur to varying degrees. The appearance of cracks not only damages the continuity and flatness of the pavement, but also easily causes water to erode the roadbed and affect the service life of the pavement, while increasing the maintenance work and cost of the pavement. Therefore, all countries in the world attach great importance to the repair of cracks, and crack repair is the primary problem to be solved in the preventive maintenance of pavement. [0003] As an important part of the preventive maintenance technology of asphalt pavement, the joint filling technology has a relatively mature quality in foreign countries, but its corresponding product, the joint filling adhesive, is expensive. Due to the constraints of fun...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B22/12C04B24/26
Inventor 李保集
Owner HENAN JIAO YUAN ENG TECH CO LTD
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