Heat-resisting smell-cleaning and warm-mixing multifunctional asphalt modifier and preparation method and application thereof

A kind of asphalt modifier and multi-functional technology, which is applied in the field of heat-resistant, clean-odor warm-mix multi-functional asphalt modifier and its preparation, can solve the problem of reducing asphalt smoke emissions, heat resistance and cooling, asphalt pavement construction process complexity, cost Expensive and other issues

Active Publication Date: 2018-09-28
CHANGAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the mixing and paving temperature of asphalt mixture, reduce the emission of asphalt fume and heat resistance and temperature reduction at the same time, it is necessary to use a variety of technical means at the same time, which makes the construction process of asphalt pavement more complicated and more expensive

Method used

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  • Heat-resisting smell-cleaning and warm-mixing multifunctional asphalt modifier and preparation method and application thereof
  • Heat-resisting smell-cleaning and warm-mixing multifunctional asphalt modifier and preparation method and application thereof
  • Heat-resisting smell-cleaning and warm-mixing multifunctional asphalt modifier and preparation method and application thereof

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preparation example Construction

[0035] The present invention provides a method for preparing the heat-resistant, clean-odor warm-mix multifunctional asphalt modifier according to the above technology, which includes the following steps:

[0036] (1) Mix the titanate coupling agent and silica sol to obtain a mixed sol;

[0037] (2) Mixing radium stone powder, mica powder and the mixed sol obtained in the step (1) to obtain a heat-resistant, clean-odor, warm-mix multifunctional asphalt modifier.

[0038] In the present invention, the titanate coupling agent and the silica sol are mixed to obtain a mixed sol.

[0039] The present invention has no special requirements on the mixing method of the titanate coupling agent and the silica sol, and the mixing method well known to those skilled in the art may be used.

[0040] In the present invention, the titanate coupling agent has very good hydrolytic stability, and the titanate coupling agent undergoes hydrolysis in the mixed sol.

[0041] After the mixed sol is obtained, the...

Embodiment 1

[0062] Mix 22 parts by mass of radium stone powder, 21 parts by mass of 1340 mesh muscovite powder, 1.8 parts by mass of chelating titanate coupling agent 311, and 55.2 parts by mass of neutral silica sol, wherein the mass of silica in the silica sol The score is 30%, and a heat-resistant, clean-odor, warm-mix multifunctional asphalt modifier is obtained.

Embodiment 2

[0064] Mix 21 parts by mass of radium stone powder, 20 parts by mass of 1340 mesh muscovite powder, 1.8 parts by mass of chelating titanate coupling agent 311, and 57.2 parts by mass of neutral silica sol, wherein the mass of silica in the silica sol The score is 30%, and a heat-resistant, clean-odor, warm-mix multifunctional asphalt modifier is obtained.

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Abstract

The invention provides a heat-resisting smell-cleaning and warm-mixing multifunctional asphalt modifier. The modifier comprises, by mass, 20-28 parts of thunderstone power, 19-26 parts of mica powder,1.7-2.1 parts of coupling agent of organic titanate and 44-60 parts of silica sol. The modifier has an obvious smell purification function, the releasing amount of asphalt fume during the mixing process of an asphalt mixing material can be effectively reduced, the temperature of an asphalt road surface can be effectively reduced to reduced the generation high-temperature diseases, the mixing temperature of the asphalt mixing material can be greatly reduced, and energy is saved.

Description

Technical field [0001] The invention belongs to the technical field of highway pavement construction, and specifically relates to a heat-resisting, clean-smelling, warm-mixing multifunctional asphalt modifier and a preparation method thereof. Background technique [0002] As the asphalt pavement has the advantages of short construction period, simple maintenance and comfortable driving, most expressways in my country are asphalt pavements. In the construction of asphalt pavement, the road construction process of hot mix asphalt mixture is widely used due to its excellent performance. However, in order to ensure that the asphalt mixture has better construction and workability during the construction process, it needs to be heated to a higher temperature in the process of hot mixing and paving, which not only causes a large amount of energy consumption and asphalt Accelerated aging will also produce a lot of asphalt smoke. Asphalt smoke not only pollutes the environment, but also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/40
CPCC04B40/0039C04B2103/0097C04B14/20C04B24/40C04B14/064C04B14/36Y02A30/30
Inventor 纪小平李向航许新权吴传海吕大伟吕明敏李善强李浩范倩
Owner CHANGAN UNIV
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