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Bionic self-healing asphalt and preparation method thereof

A self-healing, bituminous technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of high energy consumption, environmental pollution, accelerated asphalt concrete aging, etc., and achieve the best instantaneous water resistance, excellent instantaneous water resistance, Excellent long-term self-healing effect

Active Publication Date: 2017-08-08
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steel wool is heated by electromagnetic waves, thereby softening the asphalt and re-healing the asphalt pavement, but the heating process consumes a lot of energy, accelerates the aging of asphalt concrete, and seriously pollutes the environment

Method used

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  • Bionic self-healing asphalt and preparation method thereof
  • Bionic self-healing asphalt and preparation method thereof
  • Bionic self-healing asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment provides a bionic self-healing asphalt, including base asphalt and a bionic self-healing asphalt modifier.

[0062] Wherein, the mass percentage of the base asphalt is 20%, and the mass percentage of the bionic self-healing asphalt modifier is 80%.

[0063] Among them, the bionic self-healing asphalt modifier includes self-healing components and anti-stripping components. The self-healing component includes expansive resin and expansive cement, and the anti-peeling component includes calcium lignosulfonate, sodium lignosulfonate and petroleum resin.

[0064] In the bionic self-healing asphalt modifier of this embodiment, the mass percentage of the self-healing component is 80%, and the mass percentage of the anti-stripping component is 20%.

[0065] The mass percent of each substance in the self-healing component is: 50% of the expansion resin and 50% of the expansion cement.

[0066] The mass percent of each substance in the anti-peeling component is:...

Embodiment 2

[0078] This embodiment provides a bionic self-healing asphalt, including base asphalt and a bionic self-healing asphalt modifier.

[0079] Wherein, the mass percentage of the base asphalt is 10%, and the mass percentage of the bionic self-healing asphalt modifier is 90%.

[0080] Among them, the bionic self-healing asphalt modifier includes self-healing components and anti-stripping components. The self-healing component includes expansive resin and expansive cement, and the anti-stripping component includes calcium lignosulfonate and petroleum resin.

[0081] In the bionic self-healing asphalt modifier of this embodiment, the mass percentage of the self-healing component is 90%, and the mass percentage of the anti-stripping component is 10%.

[0082] The mass percentages of each substance in the self-healing component are: 63% of expansion resin and 37% of expansion cement.

[0083] The mass percent of each substance in the anti-peeling component is: 50% of calcium lignosul...

Embodiment 3

[0095] This embodiment provides a bionic self-healing asphalt, including base asphalt and a bionic self-healing asphalt modifier.

[0096] Wherein, the mass percentage of the base asphalt is 70%, and the mass percentage of the bionic self-healing asphalt modifier is 30%.

[0097] Among them, the bionic self-healing asphalt modifier includes self-healing components and anti-stripping components. The self-healing component includes expansive resin and expansive cement, and the anti-stripping component includes sodium lignosulfonate and petroleum resin.

[0098] In the bionic self-healing asphalt modifier of this embodiment, the mass percentage of the self-healing component is 70%, and the mass percentage of the anti-stripping component is 30%.

[0099] The mass percentages of each substance in the self-healing component are: 74% of expansion resin and 26% of expansion cement.

[0100] The mass percent of each substance in the anti-peeling component is: 40% of sodium lignosulfo...

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Abstract

The invention provides bionic self-healing asphalt and a preparation method thereof. The bionic self-healing asphalt is prepared from matrix asphalt and a bionic self-healing asphalt modifier, wherein the bionic self-healing asphalt modifier is prepared from a self-healing component. A material which has swelling property and autonomously propagates and crystalizes at normal temperature is taken as the self-healing component, and is combined with the common matrix asphalt in the art to simulate a human body healing system, so that on the premise of not affecting the pavement performance of swelling the asphalt, the obtained bionic self-healing asphalt enables a road to have an autonomous healing function like a human body; the bionic self-healing asphalt has the functions of swelling and autonomously propagating and crystalizing, the preparation method is simple, the production cost is low, and the prepared bionic self-healing asphalt has the effects of autonomously healing cracks and effectively reducing cracking, and furthermore other properties of the asphalt are not affected.

Description

technical field [0001] The invention relates to the technical field of road and building material modification, and more specifically relates to a bionic self-healing asphalt and a preparation method thereof. Background technique [0002] The construction of transportation infrastructure is the cornerstone of national development. As of 2016, the total mileage of my country's highways has reached 4.57 million kilometers, and urban roads account for 1 / 3 of the total urban area. Nearly 200,000 kilometers of roads need to be restored and reconstructed every year. The frequent occurrence of road diseases leads to huge investment in road maintenance, and at the same time has a major impact on traffic safety and people's travel. The problem of road maintenance has attracted widespread attention at home and abroad. In some areas with heavy traffic pressure, it is of great significance to build durable and long-life roads. [0003] According to research, road cracks are not only th...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L97/00C08L57/02C04B26/26
Inventor 索智金珊珊季节张奥张吉凯彭嫣王恒毅
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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