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A kind of asphalt smoke suppressant and smoke suppressant pitch based on the smoke suppressant and preparation method thereof

A technology of smoke suppressant and asphalt, applied in building components, climate change adaptation, building insulation materials, etc., can solve problems such as increasing construction difficulty, and achieve the effects of improving durability, reducing volatilization, and simple preparation process

Inactive Publication Date: 2017-08-11
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the volatilization of asphalt fume during the storage, use and service of existing asphalt-based materials, it is urgent to invent a kind of asphalt fume suppression material with stable performance, high smoke absorption efficiency and long-lasting, and to prepare environmentally friendly asphalt Base material, suitable for engineering applications of asphalt-based materials, and will not affect the properties of asphalt-based materials and increase construction difficulty during use

Method used

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  • A kind of asphalt smoke suppressant and smoke suppressant pitch based on the smoke suppressant and preparation method thereof
  • A kind of asphalt smoke suppressant and smoke suppressant pitch based on the smoke suppressant and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] A kind of asphalt smoke suppressant, according to mass percentage, this pitch smoke suppressant comprises 20% zeolite, 5% diatomite, 15% pumice stone, 15% graphite, 3% carbon nanotube and 42% Titanium dioxide. Wherein, the carbon nanotubes are single-walled carbon nanotubes.

[0034] The preparation method of smoke-suppressing pitch: according to mass percentage, first cool 20% of zeolite, 5% of diatomaceous earth, 15% of pumice, 15% of graphite, 3% of carbon nanotube and 42% of titanium dioxide to 0°C, and then put it into a dry In the mixer, the asphalt smoke suppressant can be obtained by mixing evenly.

[0035] Heat 70# asphalt to 165°C, and stir at 1500rpm / min, add asphalt smoke suppressant while stirring, and then stir for 0.5 hours to make it blend evenly to obtain smoke suppressant pitch. The mass percentage is 2%. Performance indicators are shown in Table 1.

Embodiment 2

[0037]An asphalt smoke suppressant, which comprises 35% zeolite, 10.5% diatomite, 10% pumice, 1% graphite, 0.5% carbon nanotube and 43% titanium dioxide according to mass percentage . Among them, the carbon nanotubes are a mixture of single-walled carbon nanotubes and double-walled carbon nanotubes.

[0038] The preparation method of smoke-suppressing asphalt: according to mass percentage, first cool 35% of zeolite, 10.5% of diatomite, 10% of pumice, 1% of graphite, 0.5% of carbon nanotube and 43% of titanium dioxide to 5°C, and then put it into a dry In the mixer, the asphalt smoke suppressant can be obtained by mixing evenly.

[0039] Heat 70# asphalt to 175°C and stir at 2000rpm / min, add asphalt smoke suppressant while stirring, and then stir for 1.0 hour to make it blend evenly to obtain smoke suppressant pitch, of which the smoke suppressant is The mass percentage is 5%. Performance indicators are shown in Table 1.

Embodiment 3

[0041] A kind of asphalt smoke suppressant, according to mass percentage, this pitch smoke suppressant comprises 5% zeolite, 50% diatomite, 1% pumice, 5% graphite, 0.1% carbon nanotube and 38.9% Titanium dioxide. Wherein, the carbon nanotubes are a mixture of double-walled carbon nanotubes and multi-walled carbon nanotubes.

[0042] The preparation method of smoke-suppressing pitch: according to mass percentage, first cool 5% zeolite, 50% diatomaceous earth, 1% pumice, 5% graphite, 0.1% carbon nanotube and 38.9% titanium dioxide to 10°C, and then put it into a dry place In the mixer, the asphalt smoke suppressant can be obtained by mixing evenly.

[0043] Heat 70# asphalt to 155°C and stir at 3000rpm / min, add asphalt smoke suppressant while stirring, and then stir for 3.0 hours to make it blend evenly to obtain smoke suppressant pitch, in which the smoke suppressant pitch is The mass percentage of smoke agent is 8%. Performance indicators are shown in Table 1.

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Abstract

An asphalt smoke suppressant, smoke suppressant pitch based on the smoke suppressant and its preparation method, the smoke suppressant includes 1-35% zeolite, 5-55% diatomite, 1-15% pumice, 0.1 ‑20% graphite, 0.1‑5% carbon nanotubes and 2‑50% titanium dioxide. The smoke suppressant is added to the asphalt to prepare the smoke suppressant asphalt. The smoke suppressant has the advantages of good chemical stability, high and long-lasting smoke suppressing efficiency, high and low temperature resistance, excellent acid and alkali resistance, environmental friendliness and the like. The use of the smoke suppressant can significantly reduce the volatilization of smoke from asphalt-based materials, improve the durability of asphalt materials, reduce the emission of volatile organic compounds (VOC) during construction, and meet the requirements of energy conservation and environmental protection.

Description

technical field [0001] The invention belongs to the field of preparation and application of asphalt materials, and in particular relates to an asphalt smoke suppressant, smoke suppressant asphalt based on the smoke suppressant and a preparation method thereof. Background technique [0002] As an important building material, asphalt has been widely used in road engineering, building waterproofing and other fields. Asphalt pavement accounts for more than 80% of the built roads in the world. When asphalt materials are heated at high temperature or served at normal temperature and pressure, asphalt fumes (or volatiles) will be generated due to high temperature or solar radiation, and their performance will also be affected (such as asphalt hardening, embrittlement, etc.), The service life is shortened, which in turn increases the consumption of resources and energy, which has a great impact on the environment. Asphalt fume is mainly volatile organic compounds, mainly including ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K13/06C08K9/06C08K3/34C08K3/04C08K7/24C08K3/22
CPCY02A30/30
Inventor 丛培良周振君张一涵刘宁
Owner CHANGAN UNIV
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