Environment-friendly rubber asphalt, asphalt mixture and its preparation method and application

An environmentally friendly rubber and asphalt technology, which is applied in building insulation materials, building components, buildings, etc., can solve the problems of high harmful gas emissions, serious environmental pollution, and strong odor, and achieve low odor concentration, environmental protection, and odor small effect

Active Publication Date: 2021-11-12
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the present invention provides an environment-friendly rubber asphalt, which contains the environment-friendly rubber asphalt, for the disadvantages of large odor, high emissions of harmful gases such as hydrogen sulfide and sulfur dioxide, and serious environmental pollution during the production and application of rubber asphalt and its mixture. Asphalt mixture and its preparation method and application

Method used

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  • Environment-friendly rubber asphalt, asphalt mixture and its preparation method and application
  • Environment-friendly rubber asphalt, asphalt mixture and its preparation method and application
  • Environment-friendly rubber asphalt, asphalt mixture and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. The production process of environment-friendly rubber asphalt is to heat 78.35% asphalt to 190°C in a reaction kettle, add 0.15% catalyst and stir for 10 minutes, 1.5% stearyl alcohol for 20 minutes, and 20% rubber powder for 90 minutes. Environment-friendly rubber asphalt can be prepared.

[0038] 2. See Table 1 for the comparison of the preparation process and materials between the environment-friendly rubber asphalt in this example and the traditional rubber asphalt.

[0039] Table 1 Comparison of rubber asphalt preparation process and materials with different processes

[0040]

[0041]

[0042] 3. Collection and detection of flue gas from rubber asphalt production

[0043] During the production of rubber-modified asphalt with the above different processes, rubber powder was added and ground for 100 minutes, and the flue gas was collected in the reactor for gas composition analysis. The data are shown in Table 2.

[0044] Table 2 Analysis and comparison o...

Embodiment 2

[0061] 1. The production process of environment-friendly rubber asphalt is to heat 77.8% asphalt to 190°C in the reaction kettle, add 0.2% catalyst and stir for 10 minutes, 2.0% stearyl alcohol for 20 minutes, and 20% rubber powder for 90 minutes. Environment-friendly rubber asphalt can be obtained.

[0062] 2. The comparison of environment-friendly rubber asphalt and traditional rubber asphalt preparation process and process materials is shown in Table 6.

[0063] Table 6 Preparation process and material comparison of rubber asphalt with different processes

[0064]

[0065] 3. Collection and detection of exhaust gas from rubber asphalt production

[0066] During the production of rubber-modified asphalt with the above different processes, rubber powder was added and ground for 100 minutes, and the flue gas was collected in the reactor for gas composition analysis. The data are shown in Table 7.

[0067] Table 7 Analysis and comparison of harmful gases in the tail gas of...

Embodiment 3

[0079] 1. The production process of environment-friendly rubber asphalt is to heat 76.7% asphalt to 190°C in a reaction kettle, add 0.3% catalyst and stir for 10 minutes, 3.0% stearyl alcohol for 20 minutes, and 20% rubber powder for 90 minutes. Environment-friendly rubber asphalt can be obtained.

[0080] 2. See Table 9 for the comparison of environment-friendly rubber asphalt and traditional rubber asphalt preparation process and process materials.

[0081] Table 9 Preparation process and material comparison of rubber asphalt with different processes

[0082]

[0083] 3. Collection and detection of exhaust gas from rubber asphalt production

[0084] During the production of rubber-modified asphalt with the above different processes, rubber powder was added and ground for 100 minutes, and the flue gas was collected in the reactor for gas composition analysis. The data are shown in Table 10.

[0085] Table 10 Analysis and comparison of harmful gases in the tail gas produc...

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Abstract

The invention relates to the field of road engineering, and specifically provides environment-friendly rubber asphalt, asphalt mixture and its preparation method and application; the environment-friendly rubber asphalt includes or consists of the following raw materials: petroleum asphalt, waste tire rubber powder, fatty alcohol and catalyst, wherein the fatty Alcohol accounts for 1.5-3.0wt% of the total amount of raw materials. The environment-friendly rubber asphalt of the present invention has low smell when heated, good quality, smaller segregation, and better thermal storage stability. When the environment-friendly rubber asphalt of the present invention is used to produce asphalt mixture, the odor is small when mixing and paving. , less harmful gas emissions such as hydrogen sulfide and sulfur dioxide, less flue gas, protect the environment, improve the production process, and protect the health of construction workers.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to environment-friendly rubber asphalt, asphalt mixture and a preparation method and application thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] The rubber asphalt processed from waste rubber tire powder and petroleum asphalt has excellent road performance such as high temperature anti-rutting, low temperature anti-cracking, anti-fatigue, anti-aging, etc., which have been proved by a large number of engineering examples at home and abroad, and have been obtained in many countries in the world. Promote apps. Rubber asphalt can not only provide high-quality construction ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L19/00C08K5/05C08K3/24
CPCC08L95/00C08L2201/08C08L2555/34C08L2555/50C08L2555/60C08L19/003C08K5/05C08K3/24
Inventor 王立志赵品晖任瑞波徐强王鹏耿立涛王鹏飞刘凯靳童
Owner SHANDONG JIANZHU UNIV
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