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Preparation method for deicing, antiskid and denoising asphalt pavement material

A technology for asphalt pavement and noise reduction, applied in the field of material science and engineering, can solve problems such as excessive durability, peeling of mixture, and unsatisfactory asphalt deicing effect, so as to improve skid resistance, reduce freezing point, and reduce pumping. The effect of the Pu effect

Inactive Publication Date: 2012-05-02
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key to the gradation design of highly connected porosity asphalt pavement materials is to ensure that the mixture forms a solid skeleton structure and has sufficient porosity. Increasing the porosity can improve the functionality of the mixture (deicing, noise reduction, anti-skid performance), but Excessive porosity will cause problems such as durability and peeling of the compound
At the same time, the high elasticity of the asphalt in the mixture and the physical deicing effect of its structure are not ideal, and the deicing optimization of the material must be carried out

Method used

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  • Preparation method for deicing, antiskid and denoising asphalt pavement material
  • Preparation method for deicing, antiskid and denoising asphalt pavement material

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Effect test

Embodiment 1

[0036] A preparation method for deicing, antiskid, and noise-reducing asphalt pavement materials, comprising the steps of:

[0037] 1) Preparation of rubber high-viscosity and high-elasticity modified asphalt:

[0038] Rubber high-viscosity and high-elasticity modified asphalt is composed of base asphalt, modified main agent, modified auxiliary agent, viscosity-increasing component, toughening and stabilizing component,

[0039] According to the mass ratio of each component: base asphalt: modified main agent: modified auxiliary agent: thickening component: toughening and stabilizing component = 100: 3.0: 15: 2: 2, select base asphalt, modified main agent, modifying auxiliary agent, tackifying component and toughening and stabilizing component; first, heat the base asphalt to 165°C, add the modified main agent, modifying auxiliary agent and tackifying component, stir for 10min, and then Grow in the oven for 20 minutes, start the high-speed shearing machine at a speed of 5000 r...

Embodiment 2

[0056] A preparation method for deicing, antiskid and noise reduction asphalt pavement materials, comprising the steps of:

[0057] 1) Preparation of rubber high-viscosity and high-elasticity modified asphalt:

[0058] Rubber high-viscosity and high-elasticity modified asphalt is composed of base asphalt, modified main agent, modified auxiliary agent, viscosity-increasing component, toughening and stabilizing component,

[0059] According to the mass ratio of each component: base asphalt: modified main agent: modified auxiliary agent: thickening component: toughening and stabilizing component = 100: 4.0: 18: 3: 3, select base asphalt, modified main agent, modifying auxiliary agent, tackifying component and toughening and stabilizing component; first, heat the base asphalt to 170°C, add the modified main agent, modifying auxiliary agent and tackifying component, stir for 15 minutes, and then Grow in the oven for 25 minutes, start the high-speed shearing machine at a speed of 6...

Embodiment 3

[0076] A preparation method for deicing, antiskid and noise reduction asphalt pavement materials, comprising the steps of:

[0077] 1) Preparation of rubber high-viscosity and high-elasticity modified asphalt:

[0078] Rubber high-viscosity and high-elasticity modified asphalt is composed of base asphalt, modified main agent, modified auxiliary agent, viscosity-increasing component, toughening and stabilizing component,

[0079] According to the mass ratio of each component: base asphalt: modified main agent: modified auxiliary agent: thickening component: toughening and stabilizing component = 100: 6.0: 20: 3: 4, select base asphalt, modified main agent, modified auxiliary agent, tackifying component and toughening and stabilizing component; first, heat the base asphalt to 175°C, add the modified main agent, modifying auxiliary agent and tackifying component, stir for 15min, and then Develop in the oven for 30 minutes, start the high-speed shearing machine at a speed of 6500...

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Abstract

The invention relates to a preparation method for a deicing, antiskid and denoising asphalt pavement material. The method is characterized by comprising the following steps: 1) preparation of rubber modified asphalt with high viscosity and high elasticity; 2) preparation of an organic / inorganic ice inhibiting material; 3) selection of mineral aggregate gradation; 4) preparation of the deicing, antiskid and denoising asphalt pavement material, which is realized by preparing mineral aggregate, the rubber modified asphalt with high viscosity and high elasticity, the organic / inorganic ice inhibiting material and fibers according to a mass ratio of 100: 4.8-5.1: 1.05-2.1: 0.225-0.533, heating the rubber modified asphalt with high viscosity and high elasticity at a temperature of 165 to 175 DEGC, and mixing and stirring the mineral aggregate, the rubber modified asphalt with high viscosity and high elasticity, the organic / inorganic ice inhibiting material and the fibers at a temperature of180 to 190 DEG C for 60 to 90 s, with paving temperature being 165 to 180 DEG C, so as to obtain the deicing, antiskid and denoising asphalt pavement material. The asphalt pavement material prepared by using the method has the characteristics of ice removal, skid resistance and noise reduction.

Description

technical field [0001] The invention belongs to the field of material science and engineering, and in particular relates to a preparation method of an asphalt pavement material. technical background [0002] With the rapid development of my country's transportation infrastructure, a large number of highway engineering projects have been launched one after another, and people's requirements for them are getting higher and higher. On the basis of driving safety, the demand for functionality is becoming stronger and stronger, especially for high-grade highways. highway. In the south, there is a lot of precipitation, and the use of ordinary asphalt mixture is likely to cause water accumulation on the road, and it is easy to generate water mist and glare when driving, which seriously affects the safety of driving, and many road sections must pass through residential areas. Although there are sound insulation devices The problem of driving noise still needs to be further improved;...

Claims

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Application Information

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IPC IPC(8): C04B26/26
Inventor 胡曙光黄绍龙姜友生丁庆军陈光新张厚记祁萍黄修林彭馨彦赵明宇
Owner WUHAN UNIV OF TECH
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