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Warm mixed colored asphalt, mixture containing same and preparation method thereof

A technology of modified asphalt and mixture, applied in building thermal insulation materials, building components, climate change adaptation and other directions, can solve the problems of high processing and use temperature, environmental pollution, etc., achieve low production and use temperature, low equipment investment, The effect of simple production process

Inactive Publication Date: 2017-12-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In order to solve the problems of high processing and use temperature of modified asphalt mixture in the prior art, and easy to cause environmental pollution, the invention provides a warm-mixed modified asphalt

Method used

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  • Warm mixed colored asphalt, mixture containing same and preparation method thereof
  • Warm mixed colored asphalt, mixture containing same and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] (1) Preparation of warm mix agent

[0059] (1) Preparation and loading

[0060] Put water under the sweating dish plate; connect the sealing system of the sweating dish with the pressurized buffer tank and the compressor; install the decompression buffer tank at the lower part of the sweating dish and connect the vacuum pump; connect the jacket of the sweating dish and the movable coil with the circulation system Connect, fix the coil on the sweating dish; start the heating function of the circulation system with heat transfer oil as the medium, so that the temperature of the circulating oil will rise to 94°C.

[0061] The polyethylene wax by-produced from the high-density polyethylene plant of PetroChina Jilin Petrochemical Ethylene Plant is used as raw material (drop melting point 90.3°C; 25°C penetration 43 dmm; 55°C penetration > 200 dmm, from 25°C and 55°C needles It can be seen that the polyethylene wax contains a large amount of low-melting point substances.), h...

Embodiment 2

[0075] (1) Preparation of warm mix agent

[0076] (1) Preparation and loading

[0077] Put water under the sweating dish plate. Connect the sealing system of the sweating dish with the pressurized buffer tank and the compressor; install the decompression buffer tank and connect the vacuum pump at the lower part of the sweating dish; connect the jacket of the sweating dish and the movable coil with the circulation system, and fix the coil in the On the sweating dish; using the heat transfer oil as the medium, start the heating function of the circulation system to raise the temperature of the circulation oil to 94°C.

[0078] Use the polyethylene wax by-produced by the high-density polyethylene plant of PetroChina Jilin Petrochemical Ethylene Plant as the raw material (the properties are the same as in Example 1), heat to 94°C and melt, then add dibenzoyl peroxide accounting for 0.03% of the weight of the raw material, and stir evenly Afterwards, add it to the sweating dish. ...

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Abstract

The invention discloses warm mixed colored asphalt. The product comprises a warm mixing agent, a polymer and matrix asphalt. The warm mixing agent is prepared by the following steps of performing a sweating process by taking a byproduct polyethylene wax as a raw material. In the sweating process, oil soluble organic matters capable of decomposed to generate gas are pre-added into the byproduct polyethylene wax raw material, and micro-bubbles are formed in a wax layer by means of gas generated by the byproduct polyethylene wax which is heated, so that a liquid component is quickly discharged and separated; meanwhile, in the sweating process, the liquid component is carried out through the wax layer by means of the air flow to separate the solid component from the liquid component in a forced manner, so that the low molecular weight components in the raw material are removed more effectively. The warm mixed colored asphalt disclosed by the invention not only is low in using temperature, but also can improve the thermal stability of the asphalt, improve the anti-aging property, alleviate thermal aging of the asphalt, and reduce the generation amount of harmful gas.

Description

technical field [0001] The invention relates to a warm-mix modified asphalt mixture and a preparation method thereof, belonging to the field of petroleum industry and basic material chemistry. Background technique [0002] There are three main methods of warm mix asphalt mixture technology: one is to use emulsified asphalt with high evaporation residue content and mix it with stone materials at a temperature of 80-120°C, which is about 30-50°C lower than that of hot-mix asphalt The second is to add water (or surfactant aqueous solution) and asphalt into the mixing tank at the same time when mixing the mixture. Due to the existence of water, the asphalt will foam and achieve the effect of reducing viscosity. However, the above two methods will generate a large amount of water vapor, which is easy to cause equipment corrosion, and often occurs stone powder agglomeration, causing problems such as blockage of dust removal equipment, which brings inconvenience to production. The...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L23/06C08L9/06C04B26/26
CPCC04B26/26C04B2111/0075C08L95/00C08L2205/03C08L53/02C08L23/06C08L9/06C04B18/12C04B14/14Y02A30/30
Inventor 陈保莲孙剑锋范思远张志银张静宋乐春姚春雷宁爱民李志军程国香
Owner CHINA PETROLEUM & CHEM CORP
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