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Micro-surfacing mixing material doped with rock asphalt and preparation method thereof

A technology of micro-surfacing mixture and rock asphalt, which is applied in the field of pavement micro-surfacing materials, can solve problems such as surface functional diseases, and achieve the effects of enhanced water damage resistance, increased durability, and good water sealing effect

Active Publication Date: 2013-07-17
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, after many years of driving on the existing asphalt concrete pavement and cement concrete pavement in China, a considerable part of the pavement structure has a good overall strength, but there are many surface functional diseases

Method used

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  • Micro-surfacing mixing material doped with rock asphalt and preparation method thereof
  • Micro-surfacing mixing material doped with rock asphalt and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] In this embodiment, the micro-surface mixture mixed with rock asphalt is made of the following raw materials in mass percentage: 76.8% of aggregate, 5% of mineral powder, 1.2% of cement, 1% of rock asphalt, 8% of water, and 8% of modified asphalt , the modified asphalt is SBR modified emulsified asphalt;

[0028] The aggregate, mineral powder, cement and SBR modified emulsified asphalt all meet the relevant technical requirements of the Ministry of Communications Ministry of Communications standard JTG F40-2004 "Technical Specifications for Construction of Highway Asphalt Pavement". The gradation type of the mixture is MS-3 type, and the specific gradation composition is shown in Table 1;

[0029] In the present embodiment, rock asphalt is preferably Indonesian Buton rock asphalt with asphalt mass content of 25%; SBR modified emulsified asphalt is preferably composed of base asphalt, SBR latex modifier, cationic asphalt emulsifier and water in a mass ratio of 64: 4:2:3...

Embodiment 2

[0036] In this embodiment, the micro-surface mixture mixed with rock asphalt is made of the following raw materials in mass percentage: 74.8% aggregate, 5% mineral powder, 1.2% cement, 3% rock asphalt, 8% water, and 8% modified asphalt , the modified asphalt is SBR modified emulsified asphalt;

[0037] The aggregate, mineral powder, cement and SBR modified emulsified asphalt all meet the relevant technical requirements of the Ministry of Communications Ministry of Communications standard JTG F40-2004 "Technical Specifications for Construction of Highway Asphalt Pavement". The gradation type of the mixture is MS-3 type, and the specific gradation composition is shown in Table 1;

[0038] In this embodiment, rock asphalt is preferably Indonesian Buton rock asphalt with a mass content of 25% asphalt; SBR modified emulsified asphalt is preferably composed of base asphalt, SBR latex, cationic asphalt emulsifier and water in a mass ratio of 64:4:2 : 30 mixed evenly; among them, the...

Embodiment 3

[0045] In this embodiment, the micro-surface mixture mixed with rock asphalt is made of the following raw materials in mass percentage: 72.8% of aggregate, 5% of mineral powder, 1.2% of cement, 5% of rock asphalt, 8% of water, and 8% of modified asphalt , the modified asphalt is SBR modified emulsified asphalt;

[0046] The aggregate, mineral powder, cement and SBR modified emulsified asphalt all meet the relevant technical requirements of the Ministry of Communications Ministry of Communications standard JTG F40-2004 "Technical Specifications for Construction of Highway Asphalt Pavement". The gradation type of the mixture is MS-3 type, and the specific gradation composition is shown in Table 1;

[0047] In the present embodiment, rock asphalt is preferably Indonesian Buton rock asphalt with asphalt mass content of 25%; SBR modified emulsified asphalt is preferably composed of base asphalt, SBR latex modifier, cationic asphalt emulsifier and water in a mass ratio of 64: 4:2:3...

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Abstract

The invention provides a micro-surfacing mixing material doped with rock asphalt. The material is prepared from raw materials in percentage by weight as follows: 70-78% of aggregate, 3-7% of mineral powder, 1-3% of cement, 1-5% of rock asphalt, 8-12% of water, and 8-12% of modified asphalt. The invention further provides a method for preparing the micro-surfacing mixing material. The method comprises the following steps of: 1, mixing aggregate, mineral powder, cement and rock asphalt; 2, adding water and continuously mixing; and 3, adding modified asphalt and continuously mixing to obtain micro-surfacing mixing material doped with rock asphalt. The method provided by the invention is simple in process, strong in repeatability, and wide in application value. The cohesive force of the micro-surfacing mixing material prepared by the invention is greatly improved by doping rock asphalt, so that the opening traffic is improved, the anti-abrasion capacity is remarkably improved, the durability is increased, and the water-resistant damage capacity is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of pavement micro-surfacing materials, and in particular relates to a micro-surfacing mixture mixed with rock asphalt and a preparation method thereof. Background technique [0002] In recent years, after many years of driving on the existing asphalt concrete pavement and cement concrete pavement in our country, a considerable part of the pavement structure has intact overall strength, but there are many surface functional diseases. For the maintenance and repair of this part of the pavement structure, from the perspective of reducing the impact on the pavement elevation and saving resources, it is only necessary to restore its surface function, and the use of micro-surface maintenance technology is an ideal solution. [0003] The micro-surface has high anti-skid performance, especially suitable for high-grade highways with large traffic volume, heavy-duty vehicles, fast speed, and high braking performance r...

Claims

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Application Information

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IPC IPC(8): C04B28/00
Inventor 郝培文刘刚赵恒曹晓娟
Owner CHANGAN UNIV
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