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A kind of asphalt modifier, asphalt mixture and preparation method thereof

A technology of asphalt mixture and asphalt modifier, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., to achieve the effect of reducing application and good economy

Active Publication Date: 2017-03-15
SHANGHAI PUDONG ROAD & BRIDGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an asphalt modifier, asphalt mixture and preparation method thereof, aiming at solving the contradictory problems of asphalt road development and energy saving and environmental protection

Method used

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  • A kind of asphalt modifier, asphalt mixture and preparation method thereof
  • A kind of asphalt modifier, asphalt mixture and preparation method thereof
  • A kind of asphalt modifier, asphalt mixture and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The asphalt modifier in this example will be applied to AC-13C asphalt mixture, and the maximum nominal aggregate particle size r is 1.3 cm. The modifier is waste fabric with 50% cotton and 50% polyester. After the waste fabric is crushed by a fabric impact crusher and screened by an electric sieving machine, the length and size range of the modified modifier after processing is controlled according to the distribution range of 2πr to 4πr. Between 8.16-16.3cm, the diameter is 0.05mm.

[0025] In this example, the SMA-13 ​​graded asphalt mixture is taken as the research object, and the properties of the SBS modified asphalt mixture and the asphalt mixture of the present invention are studied.

[0026] The main material composition of the SBS modified asphalt mixture and the asphalt mixture of the present invention is the same, see Table 1. Aggregate wherein is mineral material basalt, and the percentage that accounts for the total mass of mixture is 94.1%, and asphalt i...

Embodiment 2

[0046] In this example, the SMA-13 ​​graded asphalt mixture is taken as the research object, and the performance of the asphalt mixture of the present invention and the conventional waste fabric asphalt mixture is compared and studied.

[0047] The asphalt mixture of the present invention and the conventional waste fabric asphalt mixture, the aggregates used in these two kinds of asphalt mixtures are mineral basalt, accounting for 94.1% of the total mass of the mixture, and the rest are modified asphalt, accounting for 94.1% of the total mass of the mixture. The percentage of the total mass of the mixture is 5.9%, the asphalt modifier in the modified asphalt is the waste fabric of the same raw material, and the percentage of the waste fabric to the total mass of the mixture is 0.4%. The difference between the two asphalt mixes is that the waste fabric is handled differently. The waste fabric in the asphalt mixture of the present invention is crushed and processed into a certai...

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Abstract

The invention discloses an asphalt modifier, an asphalt mixture and preparing methods of the asphalt modifier and the asphalt mixture. The asphalt modifier is made of waste fabric in a processed mode, the maximum nominal grain size of aggregate in the asphalt mixture is set to be r, the length size of the asphalt modifier ranges from 2pir to 4pir, and the cross sectional area of the asphalt modifier is smaller than or equal to 0.01 mm<2>. The asphalt modifier which is made of the waste fabric in the processed mode and has the certain length size is designed according to the fact that the waste fabric has the advantages of being good in elasticity, resistant to shearing, stretching, the high temperature and the low temperature, capable of being dissolved into asphalt and the like based on the coarse aggregate macroscopic binding principle, the modifying effect similar to that of polymer modification agents is achieved in the performance aspect, a direction is provided for large-scale processing of the waste fabric, the applied polymer modification agents are reduced, and the good economic benefits and the good environment-friendly benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of road engineering and environmental protection, and in particular relates to an asphalt modifier, an asphalt mixture and a preparation method thereof. Background technique [0002] As a traditional resource-consuming industry, the road field, especially the asphalt road industry, consumes a large amount of petrochemical products, including chemical materials such as asphalt and polymers, which not only consumes a large amount of natural resources, but also produces certain environmental pollution. How to solve the contradiction between the development of asphalt roads and energy conservation and environmental protection has become a problem that must be solved by personnel engaged in asphalt roads at home and abroad. [0003] At present, the regeneration of waste resources is an important direction to alleviate the contradiction between development and energy conservation and environmental protection. my ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/20C04B18/24C04B26/26
CPCY02W30/91
Inventor 罗芳艳王晓杰闫国杰刘钢李军代马利志邱轶邓国民袁月李交夏庆宇王腾飞徐韵淳李俊姚凯周维维钱婷
Owner SHANGHAI PUDONG ROAD & BRIDGE GRP CO LTD