A kind of recycled rubber asphalt mixture and preparation method thereof

A technology for asphalt mixture and reclaimed rubber, which is used in building thermal insulation materials, building components, buildings, etc., can solve the problems of poor low temperature resistance of reclaimed asphalt mixture, reduced rutting resistance of reclaimed asphalt, and difficulty in fully dispersing rubber oil. , to achieve the effect of improving bonding performance, improving low temperature performance, improving thermal stability and water stability

A technology for asphalt mixture and reclaimed rubber, which is used in building thermal insulation materials, building components, buildings, etc., can solve the problems of poor low temperature resistance of reclaimed asphalt mixture, reduced rutting resistance of reclaimed asphalt, and difficulty in fully dispersing rubber oil. , to achieve the effect of improving bonding performance, improving low temperature performance, improving thermal stability and water stability

CN111018407BActive Publication Date: 2022-01-07北京路新沥青混凝土有限公司
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method for recycled rubber asphalt mixture, comprising the steps of:

[0033] S1: Weigh 10 parts of rubber oil and 80 parts of rubber powder by weight, add the rubber powder to the rubber oil and swell for more than 6 hours at a temperature of 20°C to obtain a mixture;

[0034] S2: Add 80 parts by weight of new aggregate in the container for mixing, then add the mixture in step S1, then add 20 parts by weight of road surface reclaimed material, 4 parts of matrix rock asphalt, 1.7 parts of 70# asphalt, and then add Add 6 parts of filler to obtain recycled rubber asphalt mixture; the new aggregate includes 30 parts of coarse aggregate and 20 parts of fine aggregate; the content of asphalt in matrix rock asphalt is 22%.

Embodiment 2

[0036] A preparation method for recycled rubber asphalt mixture, comprising the steps of:

[0037] S1: Weigh 20 parts of rubber oil and 70 parts of rubber powder by weight, add the rubber powder to the rubber oil and swell for more than 6 hours at a temperature of 30°C to obtain a mixture;

[0038] S2: Add 70 parts by weight of new aggregate in the container for mixing, then add the mixture in step S1, then add 30 parts by weight of road surface reclaimed material, 7 parts of matrix rock asphalt, 2.2 parts of 70# asphalt, filler 9 parts to obtain recycled rubber asphalt mixture; wherein the new aggregate includes 35 parts of coarse aggregate and 23 parts of fine aggregate; wherein the content of asphalt in the matrix rock asphalt is 26%

Embodiment 3

[0040] A preparation method for recycled rubber asphalt mixture, comprising the steps of:

[0041] S1: Weigh 30 parts of rubber oil and 60 parts of rubber powder by weight, add the rubber powder to the rubber oil and swell for more than 6 hours at a temperature of 40°C to obtain a mixture;

[0042]S2: Add 60 parts by weight of new aggregate in the container for mixing, then add the mixture in step S1, then add 40 parts by weight of road surface reclaimed material, 10 parts of matrix rock asphalt, 2.8 parts of 70# asphalt, filler 12 parts were obtained as recycled rubber asphalt mixture; the new aggregate included 40 parts of coarse aggregate and 26 parts of fine aggregate; the content of asphalt in matrix rock asphalt was 30%.

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Abstract

The invention discloses a method for preparing a regenerated rubber asphalt mixture, which belongs to the field of asphalt technology. The main points of the technical solution include the following steps: S1: weighing 10-30 parts of rubber oil and 60-80 parts of rubber powder in parts by weight, Add rubber powder into rubber oil and swell for more than 6 hours at a temperature of 20°C-40°C to obtain a mixture; S2: add 60-80 parts by weight of new aggregates in the container for mixing, and then mix the Add the mixture, then add 20-40 parts of pavement reclaimed material in parts by weight, 4-10 parts of matrix rock asphalt, 1.7-2.8 parts of 70# asphalt, and 6-12 parts of filler to obtain the recycled rubber asphalt mixture, so as to improve the regeneration of the recycled asphalt mixture. The effect of low temperature resistance performance.

Description

technical field [0001] The invention relates to the technical field of asphalt, in particular to a recycled rubber asphalt mixture and a preparation method thereof. Background technique [0002] At present, our country attaches great importance to saving resources and protecting the environment. Public transportation is a resource-occupied and energy-consuming industry, and it is a large energy resource consumer in my country. Highway construction needs to consume a large amount of road construction materials, and road oxidation will also produce a large amount of waste pavement materials. Applying the recycling of waste pavement materials to road infrastructure construction and oxidation can turn waste into treasure, which can avoid land occupation and Environmental pollution can reduce the demand for stone and asphalt, and reduce road maintenance costs. [0003] The existing regenerated asphalt mixture is mainly to add rejuvenating agent to the regenerated asphalt mixtur...

Claims

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Application Information

Patent Timeline
07 Jan 2022
Publication
CN111018407B
IPC
C08L95/00; C04B26/26
CPC
C04B26/26; C04B2201/50; C04B2111/0075; C04B18/22; C04B18/16; C04B14/28; C04B14/06
Inventors
王译民; 赵京