A kind of bionic self-healing asphalt mixture and preparation method thereof

An asphalt mixture and self-healing technology, applied in the field of bionic self-healing asphalt mixture and its preparation, can solve the problems of accelerating the aging of asphalt concrete, consuming large energy, polluting the environment, etc., and achieving excellent instantaneous water resistance and long-term self-healing The effect of excellent performance and best self-healing effect of cracks

Active Publication Date: 2019-10-25
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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  • A kind of bionic self-healing asphalt mixture and preparation method thereof
  • A kind of bionic self-healing asphalt mixture and preparation method thereof
  • A kind of bionic self-healing asphalt mixture and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0073] This embodiment provides a bionic self-healing asphalt mixture, including mineral aggregate and bionic self-healing asphalt. Bionic self-healing asphalt includes base asphalt and bionic self-healing asphalt modifier. The bionic self-healing asphalt modifier includes self-healing components and anti-stripping components.

[0074] In this embodiment, the self-healing component includes expanded resin and expanded cement, and the anti-stripping component includes calcium lignosulfonate, sodium lignosulfonate and petroleum resin.

[0075] In this embodiment, the mineral aggregate is basalt.

[0076] In the bionic self-healing asphalt mixture of this embodiment, the mass percentage of the mineral aggregate is 80%, and the mass percentage of the bionic self-healing asphalt is 20%.

[0077] In the bionic self-healing asphalt of this embodiment, the mass percentage of the base asphalt is 20%, and the mass percentage of the bionic self-healing asphalt modifier is 80%.

[0078] In the bi...

Embodiment 2

[0097] This embodiment provides a bionic self-healing asphalt mixture and a preparation method thereof. The other steps are the same as those in Example 1, except that:

[0098] In the bionic self-healing asphalt mixture of this embodiment, the mass percentage of mineral aggregate is 99%, and the mass percentage of the bionic self-healing asphalt is 1%.

[0099] In the bionic self-healing asphalt of this embodiment, the mass percentage of the base asphalt is 40%, and the mass percentage of the bionic self-healing asphalt modifier is 60%.

[0100] 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%.

[0101] The self-healing component in this embodiment includes expanded resin and expanded cement, and the anti-stripping component includes calcium lignosulfonate and petroleum resin. The mass percentage of each substance in the self-healing component is: 63...

Embodiment 3

[0103] This embodiment provides a bionic self-healing asphalt mixture and a preparation method thereof. The other steps are the same as those in Example 1, except that:

[0104] In the bionic self-healing asphalt mixture of this embodiment, the mass percentage of mineral aggregate is 90%, and the mass percentage of the bionic self-healing asphalt is 10%.

[0105] In the bionic self-healing asphalt of this embodiment, the mass percentage of the base asphalt is 70%, and the mass percentage of the bionic self-healing asphalt modifier is 30%.

[0106] In the bionic self-healing asphalt modifier of this embodiment, the mass percentage of the self-healing component is 85%, and the mass percentage of the anti-stripping component is 15%.

[0107] The self-healing component of this embodiment includes a combination of expanded resin and expanded cement, and the anti-stripping component includes calcium lignosulfonate and sodium lignosulfonate. The mass percentage of each substance in the self-...

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Abstract

The invention provides a bionic self-healing bituminous mixture and a preparation method thereof. The bionic self-healing bituminous mixture is prepared from mineral aggregates and bionic self-healing bitumen; the bionic self-healing bitumen is prepared from basis bitumen and a bionic self-healing bitumen modifier containing self-healing components. Accordingly, materials which can have expansibility at room temperature and achieve autonomic proliferating crystallization are self-healing components, the bionic self-healing bituminous mixture is combined with the basis bitumen and the mineral aggregates which are common in the field, a human body healing mechanism is imitated, and on the premise that the bitumen road use performance is not affected, the obtained bionic self-healing bituminous mixture has the self-healing function similar to the human body. The preparation method is simple, the cost control is good, road diseases can be effectively reduced, the service life of a road is prolonged, and the bionic self-healing bituminous mixture has the good road use performance.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C08L101/00C08L97/00C08L57/02C08K3/34
CPCC04B26/26C04B2111/0075C08L101/00C08L2205/025C08L2205/035C04B14/14C04B24/24C04B7/00C04B24/18C08L97/005C08L57/02C08K3/34
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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