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Preparation method of a high-adhesion high-strength pavement repair material

A pavement repairing and high-adhesion technology, applied in the field of pavement maintenance, can solve the problems of poor bonding effect, poor mechanical strength, poor toughness, etc. Effect

Active Publication Date: 2020-11-10
北京通途技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention: Aiming at the phenomenon that holes and cracks appear in the repaired roadbed material due to the poor bonding effect of the current pavement repairing materials, and at the same time aiming at the defects of poor mechanical strength and poor toughness of the pavement repaired by the pavement repairing materials, a method is provided. A kind of preparation method of high-adhesion high-strength pavement repair material

Method used

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  • Preparation method of a high-adhesion high-strength pavement repair material

Examples

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example 1

[0025]Put shrimp shells and crab shells of equal mass into an oven, dry them for 6 hours at a temperature of 55°C, put them into a grinding tank for grinding after drying, pass through a 200-mesh sieve to obtain sieved products, and sieve the sieved materials and distilled water according to the mass Put the mixture into a beaker at a ratio of 1:5, put the beaker into a water bath and let it stand at a constant temperature for 50 minutes at a water bath temperature of 60°C; add hydrochloric acid with a mass fraction of 5% to the above beaker dropwise, and adjust the pH value to 3. Soak at room temperature for 2 hours, add dropwise sodium hydroxide solution with a mass fraction of 20% to the above beaker after soaking, adjust the pH value to 10, increase the temperature of the water bath to 90°C, and filter at a constant temperature for 5 hours to obtain a filter cake. The cake was washed 4 times with distilled water, put into an oven and dried at 70°C for 3 hours to obtain a dr...

example 2

[0027] Put shrimp shells and crab shells of equal mass into an oven, dry them for 7 hours at a temperature of 57°C, put them into a grinding tank for grinding after drying, pass through a 200-mesh sieve to obtain sieved products, and sieve the sieved materials and distilled water according to the mass Put the mixture into a beaker at a ratio of 1:5, put the beaker into a water bath, and let it stand at a constant temperature for 55 minutes under the condition of a water bath temperature of 65°C; add hydrochloric acid with a mass fraction of 7% to the above beaker dropwise, and adjust the pH value to 3. Soak at room temperature for 2.5 hours. After soaking, add dropwise sodium hydroxide solution with a mass fraction of 22% to the above beaker, adjust the pH value to 11, increase the temperature of the water bath to 95°C, and filter at a constant temperature for 5.5 hours to obtain a filter cake. Wash the filter cake 6 times with distilled water, put it in an oven and dry it at 7...

example 3

[0029] Put shrimp shells and crab shells of equal mass into an oven, dry them for 8 hours at a temperature of 60°C, put them into a grinding tank for grinding after drying, and pass through a 200-mesh sieve to get the sieved product, and sieve the sieved product and distilled water according to the mass Put the mixture into a beaker at a ratio of 1:5, put the beaker into a water bath, and let it stand at a constant temperature for 60 minutes under the condition of a water bath temperature of 70°C; add hydrochloric acid with a mass fraction of 8% to the above beaker, and adjust the pH value to 4. Soak at room temperature for 3 hours, after soaking, add dropwise sodium hydroxide solution with a mass fraction of 25% to the above beaker, adjust the pH value to 12, increase the temperature of the water bath to 100°C, and filter at a constant temperature for 6 hours to obtain a filter cake. The cake was washed 8 times with distilled water, put into an oven and dried at 80°C for 5 hou...

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Abstract

The invention relates to a preparation method of a high-cohesiveness and high-intensity pavement repair material, and belongs to the technical field of pavement maintenance. Shrimp shells and crab shells which are used as raw materials are soaked in sequence in hydrochloric acid and a high-temperature alkaline solution to extract chitosan; then the chitosan and isopropyl triisostearoyltitanate aremixed for coupling reaction; meanwhile, the isopropyl triisostearoyltitanate can achieve a coupling chelation effect together with a metal oxide during repairing of the pavement, thus improving the mechanical property of the repaired pavement. According to the preparation method, a basalt fiber is put into a high frequency induction plasma generator; ammonia gas is ionized into an amino group through positive and negative electrodes, and the amino acid is attached to the surface of the basalt fiber; the repair material is easily dissolved in a water phase through an organic functional group,and the organic functional group forms chemical bond adsorption with other particles in the repair material; the repair material can effectively use the excellent mechanical property and toughness ofthe basalt fiber to enhance own mechanical performance during use and has a wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of a high-adhesive and high-strength pavement repair material, which belongs to the technical field of pavement maintenance. Background technique [0002] Transportation is a key component to realize the rapid development of the national economy, and road transportation is one of the main modes of transportation. With the development of the economy, the traffic flow continues to increase, and the dynamic load generated by too many vehicles, especially heavy-duty trucks, leads to a large number of road diseases earlier. [0003] Most of the existing roads use concrete construction pavement, which not only has good quality but also has a long service life. However, the maintenance of concrete pavement is more complicated after the pavement is damaged during use, and the maintenance period is longer. At present, the commonly used repair materials for concrete pavement repair include quick cement, asphalt con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B111/72
CPCC04B28/00C04B2111/72C04B2201/50C04B14/46C04B22/064C04B14/06C04B14/303C04B14/308C04B24/38C04B24/2611
Inventor 裘友玖蒋梦成朱彩娣
Owner 北京通途技术有限公司
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