A rubber-plastic alloy modified asphalt and asphalt mixture

Abstract

The invention relates to the field of asphalt. A rubber alloy modifier is obtained with untreated waste plastics and waste tire rubber powder as main raw materials. Modified asphalt which does not affect the rubber / plastic independent modification effects and has good asphalt storage stability and simple production process is finally obtained by utilizing the modifier to modify asphalt. The modified asphalt can be applied to continuous dense gradation of an asphalt mixture. On the premise that the high-and-low temperature performance of the mixture meets the requirement, the water stability is obviously improved, thus achieving effective treatment of two types of polymer waste pollutants such as waste tire rubber powder and waste plastics and change of asphalt properties.

Description

technical field

[0001] The invention relates to the field of asphalt processing, in particular to a rubber-plastic alloy modified asphalt. Background technique

[0002] In recent years, the environmental pollution caused by the accumulation of waste tires and waste plastics has attracted widespread attention. Waste rubber is the second largest waste polymer material. The world produces about 31 million tons of rubber products every year, 50% of which are tires, and the scrap rate of tires is as high as 55.4%. According to statistics, there are 1.5 billion tires (9 million tons) discarded every year in the world. Driven by the continuous increase in the number of private cars and trucks in my country, the output of waste tires has increased dramatically year by year. According to statistics, in 2006, my country's tire output was as high as 420 million, ranking first in the world, and the stock of waste tires reached 140 million, ranking second in the world. As of 2010, the...

Examples

Embodiment 1

[0033] A rubber-plastic alloy modified asphalt, the weight of its main components consists of: 13 parts of rubber-plastic alloy modifier, 0.2 part of stabilizer, 80 parts of 70# petroleum asphalt;

[0034] Wherein said stabilizer is sulfur;

[0035] Wherein the rubber-plastic alloy asphalt modifier adopted, its main composition and parts by weight: 65 parts of waste tire rubber powder, 25 parts of waste plastic particles, 2 parts of plasticizer, 0.2 part of surfactant;

[0036] Wherein said waste tire rubber powder is 20 mesh waste radial tire crushed rubber powder; said waste plastic particles are selected from crushed waste plastic particles with a PE component greater than 80wt%; all are purchased directly from the market;

[0037] The plasticizer is selected from epoxy fatty acid methyl ester; the surfactant is selected from FLUORAD FC-430.

[0038] The specific preparation steps are as follows: heating waste tire rubber powder to 230-250° C. on a single-screw machine, ad...

Embodiment 2

[0055] A rubber-plastic alloy modified asphalt, the weight of its main components consists of: 20 parts of rubber-plastic alloy modifier, 1.0 part of stabilizer, 86 parts of 90# petroleum asphalt;

[0056] Wherein said stabilizer is sulfur;

[0057] Wherein the rubber-plastic alloy asphalt modifier adopted, its main composition and parts by weight: 73 parts of waste tire rubber powder, 30 parts of waste plastic particles, 5 parts of plasticizer, 0.6 part of surfactant;

[0058]Wherein said waste tire rubber powder is the crushed rubber powder of 40-mesh waste bias tire; said waste plastic particles are selected from the crushed particles of waste plastics with a PE component greater than 80wt%; all are purchased directly from the market;

[0059] The plasticizer is selected from epoxy fatty acid methyl ester; the surfactant is selected from FLUORADFC-430.

[0060] The specific steps are as follows:

[0061] Heat waste tire rubber powder to 230-250°C on a single-screw machine...

Embodiment 3

[0067] A rubber-plastic alloy modified asphalt, the weight of its main components consists of: 16.6 parts of rubber-plastic alloy modifier, 0.4 part of stabilizer, 83 parts of 70# petroleum asphalt;

[0068] Wherein said stabilizer is sulfur;

[0069] Wherein the rubber-plastic alloy asphalt modifier adopted, its main composition and parts by weight: 72 parts of waste tire rubber powder, 25 parts of waste plastic particles, 2.7 parts of plasticizer, 0.3 part of surfactant;

[0070] Wherein said waste tire rubber powder is the crushed rubber powder of 30 purpose waste radial tires and bias tires; the waste plastic particles are selected from the crushed particles of waste plastics whose PE composition is greater than 80wt%; all from the market purchased directly;

[0071] The plasticizer is selected from epoxy fatty acid methyl ester; the surfactant is selected from FLUORADFC-430.

[0072] The specific steps are as follows:

[0073] Heat waste tire rubber powder to 230-250°C...

technical field

[0001] The invention relates to the field of asphalt processing, in particular to a rubber-plastic alloy modified asphalt. Background technique

[0002] In recent years, the environmental pollution caused by the accumulation of waste tires and waste plastics has attracted widespread attention. Waste rubber is the second largest waste polymer material. The world produces about 31 million tons of rubber products every year, 50% of which are tires, and the scrap rate of tires is as high as 55.4%. According to statistics, there are 1.5 billion tires (9 million tons) discarded every year in the world. Driven by the continuous increase in the number of private cars and trucks in my country, the output of waste tires has increased dramatically year by year. According to statistics, in 2006, my country's tire output was as high as 420 million, ranking first in the world, and the stock of waste tires reached 140 million, ranking second in the world. As of 2010, the...

Examples

Embodiment 1

[0033] A rubber-plastic alloy modified asphalt, the weight of its main components consists of: 13 parts of rubber-plastic alloy modifier, 0.2 part of stabilizer, 80 parts of 70# petroleum asphalt;

[0034] Wherein said stabilizer is sulfur;

[0035] Wherein the rubber-plastic alloy asphalt modifier adopted, its main composition and parts by weight: 65 parts of waste tire rubber powder, 25 parts of waste plastic particles, 2 parts of plasticizer, 0.2 part of surfactant;

[0036] Wherein said waste tire rubber powder is 20 mesh waste radial tire crushed rubber powder; said waste plastic particles are selected from crushed waste plastic particles with a PE component greater than 80wt%; all are purchased directly from the market;

[0037] The plasticizer is selected from epoxy fatty acid methyl ester; the surfactant is selected from FLUORAD FC-430.

[0038] The specific preparation steps are as follows: heating waste tire rubber powder to 230-250° C. on a single-screw machine, ad...

Embodiment 2

[0055] A rubber-plastic alloy modified asphalt, the weight of its main components consists of: 20 parts of rubber-plastic alloy modifier, 1.0 part of stabilizer, 86 parts of 90# petroleum asphalt;

[0056] Wherein said stabilizer is sulfur;

[0057] Wherein the rubber-plastic alloy asphalt modifier adopted, its main composition and parts by weight: 73 parts of waste tire rubber powder, 30 parts of waste plastic particles, 5 parts of plasticizer, 0.6 part of surfactant;

[0058]Wherein said waste tire rubber powder is the crushed rubber powder of 40-mesh waste bias tire; said waste plastic particles are selected from the crushed particles of waste plastics with a PE component greater than 80wt%; all are purchased directly from the market;

[0059] The plasticizer is selected from epoxy fatty acid methyl ester; the surfactant is selected from FLUORADFC-430.

[0060] The specific steps are as follows:

[0061] Heat waste tire rubber powder to 230-250°C on a single-screw machine...

Embodiment 3

[0067] A rubber-plastic alloy modified asphalt, the weight of its main components consists of: 16.6 parts of rubber-plastic alloy modifier, 0.4 part of stabilizer, 83 parts of 70# petroleum asphalt;

[0068] Wherein said stabilizer is sulfur;

[0069] Wherein the rubber-plastic alloy asphalt modifier adopted, its main composition and parts by weight: 72 parts of waste tire rubber powder, 25 parts of waste plastic particles, 2.7 parts of plasticizer, 0.3 part of surfactant;

[0070] Wherein said waste tire rubber powder is the crushed rubber powder of 30 purpose waste radial tires and bias tires; the waste plastic particles are selected from the crushed particles of waste plastics whose PE composition is greater than 80wt%; all from the market purchased directly;

[0071] The plasticizer is selected from epoxy fatty acid methyl ester; the surfactant is selected from FLUORADFC-430.

[0072] The specific steps are as follows:

[0073] Heat waste tire rubber powder to 230-250°C...

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