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Modified asphalt with flame retardance and hot-mix emission reduction functions

A modified asphalt and hot mix technology, applied in the field of materials, can solve the problems of smoke emission, flammability of traffic accidents, etc., and achieve the effect of improving safety performance, good flame retardant and hot mix emission reduction effect.

Active Publication Date: 2014-02-05
王朝辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to overcome the problems of flammability in traffic accidents on the asphalt road surface of the tunnel and the discharge of harmful gases such as smoke during the construction process, and to provide a fire-retardant and hot-mixing effect, a wide range of material sources, low cost, and simple preparation. Flame-retardant modified asphalt compounded with new specularite and skutterudite

Method used

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  • Modified asphalt with flame retardance and hot-mix emission reduction functions
  • Modified asphalt with flame retardance and hot-mix emission reduction functions
  • Modified asphalt with flame retardance and hot-mix emission reduction functions

Examples

Experimental program
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Effect test

Embodiment 1

[0011] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0012]

[0013] The above basic asphalt adopts SBS modified asphalt; the above-mentioned skutterudite and specularite are both 2000 mesh, and can also be replaced by other meshes; the coupling agent uses silane coupling agent, the purpose is to modify the surface of skutterudite and specularite and improve the compatibility of the two minerals with asphalt.

[0014] Select the reaction raw materials according to the above-mentioned raw materials and their mass percentages; dry the specularite and skutterudite and add them to the coupling agent treatment solution with ethanol as the solvent to soak for 2 hours, stir slightly during the soaking process, and dry them to prepare Surface-modified specularite and skutterudite composite modifier; the basic asphalt is heated to 150±5°C, and the surface-modified specularite and skutterudite...

Embodiment 2

[0016] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0017]

[0018]

[0019] The above-mentioned base asphalt is SBS modified asphalt; the above-mentioned skutterudite and specularite are both 2000 mesh, and can also be replaced by other meshes; the coupling agent is a silane coupling agent, and its preparation method is the same as that of Example 1.

Embodiment 3

[0021] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0022]

[0023] The above-mentioned base asphalt is SBS modified asphalt; the above-mentioned skutterudite and specularite are both 2000 mesh, and can also be replaced by other meshes; the coupling agent is a silane coupling agent, and its preparation method is the same as that of Example 1.

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Abstract

The invention discloses an asphalt pavement material with flame retardance and hot-mix emission reduction functions. The asphalt pavement material is prepared from the following raw materials in percentage by mass: 70-90% of base asphalt, 5-17.5% of skutterudite, 1.5-5.5% of specularite and 2.5-7% of coupling agent, wherein the total mass percentage of the raw materials is 100%; the base asphalt is common pavement petroleum asphalt, or asphalt modified with SBS (styrene-butadiene-styrene), SBR (styrene-butadiene copolymer), EVA (ethylene-vinyl acetate) and the like; the coupling agent is a titanate coupling agent, a silane coupling agent and the like. By adopting the material disclosed by the invention, the prepared asphalt has relatively good flame retardance, the emission of harmful gases such as asphalt fume, CO and NO2 generated in the asphalt heating and asphalt mixture construction processes can be remarkably reduced, and the asphalt has the advantages that the material source is wide, the cost is low, the preparation process is simple and the like.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an asphalt with the functions of flame retardancy and thermal mixing and emission reduction. Background technique [0002] With the rapid development of domestic highways, more and more highway tunnels are built. Tunnel construction technology has achieved comprehensive development, but the research on pavement materials and technology in tunnel is still relatively little. Due to the advantages of comfortable driving, low noise, good skid resistance and easy maintenance, asphalt pavement is being more and more applied to tunnel pavement. However, during the construction of asphalt mixture, a large amount of smoke will be generated, polluting the environment, and asphalt is a flammable material, which can be combustible when exposed to open flames and high heat. In addition, the ventilation conditions in the tunnel are poor. If a traffic accident causes the asphalt ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08K9/06C08K3/22C04B26/26
Inventor 王朝辉侯明业李彦伟
Owner 王朝辉
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