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A kind of polymer modified asphalt concrete

A technology for modifying asphalt and polymers, which is applied in the field of asphalt concrete and polymer-modified asphalt concrete to achieve the effects of improving aging resistance and water resistance, increasing road surface temperature, and non-toxic and harmless raw materials.

Active Publication Date: 2017-10-20
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a polymer modified asphalt concrete to solve the technical problem of reducing the high and low temperature diseases of the asphalt concrete pavement while ensuring the road performance of the asphalt concrete

Method used

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  • A kind of polymer modified asphalt concrete
  • A kind of polymer modified asphalt concrete
  • A kind of polymer modified asphalt concrete

Examples

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Embodiment 1

[0025] This example provides a kind of polymer modified asphalt concrete, which is made of the following raw materials in parts by weight: 100 parts of mineral aggregate, 3 parts of asphalt, 0.2 part of polymer, 0.01 part of improver, 0.01 part of stabilizer, Coupling agent 0.001 part; The ore material that present embodiment adopts is AC-13 type ore material, and the coupling agent that adopts is gamma-(methacryloyl oxygen) propyl trimethoxysilane, and the asphalt that adopts is SBS asphalt.

[0026] The preparation method of polymer modified asphalt concrete in this embodiment comprises the following steps:

[0027] Step 1. Prepare the modifier: weigh the polymer, improver, and coupling agent and mix them evenly to obtain the modifier; in the specific preparation process, the coupling agent can be diluted with ethanol first, and then the polymer and improver Add the mixture of the coupling agent to the diluent of the coupling agent, stir it thoroughly, and then place it in ...

Embodiment 2

[0031] This embodiment provides a polymer modified asphalt concrete, which is made of the following raw materials in parts by weight: 100 parts of mineral aggregate, 4.5 parts of asphalt, 0.8 part of polymer, 0.08 part of improver, 0.08 part of stabilizer, 0.02 part of coupling agent; the mineral material adopted in the present embodiment is AC-13 type mineral material, and the coupling agent adopted is gamma-(methacryloyl oxygen) propyltrimethoxysilane, and the asphalt adopted is coal tar pitch.

[0032] The preparation method of polymer modified asphalt concrete in this embodiment comprises the following steps:

[0033] Step 1. Prepare the modifier: weigh the polymer, improver, and coupling agent and mix them evenly to obtain the modifier; in the specific preparation process, the coupling agent can be diluted with ethanol first, and then the polymer and improver Add the mixture of the coupling agent to the diluent of the coupling agent, stir it thoroughly, and then place it...

Embodiment 3

[0037] This embodiment provides a polymer modified asphalt concrete, which is made of the following raw materials in parts by weight: 100 parts of mineral aggregate, 5.5 parts of asphalt, 1.2 parts of polymer, 0.15 part of improver, 0.15 part of stabilizer, 0.05 part of coupling agent; the mineral material adopted in the present embodiment is AC-13 type mineral material, and the coupling agent adopted is gamma-(methacryloyl oxygen) propyltrimethoxysilane, and the asphalt adopted is Road petroleum asphalt.

[0038] The preparation method of polymer modified asphalt concrete in this embodiment comprises the following steps:

[0039] Step 1. Prepare the modifier: weigh the polymer, improver, and coupling agent and mix them evenly to obtain the modifier; in the specific preparation process, the coupling agent can be diluted with ethanol first, and then the polymer and improver Add the mixture of the coupling agent to the diluent of the coupling agent, stir it thoroughly, and then...

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Abstract

The invention provides a polymer-modified asphalt concrete, which is made of the following raw materials in parts by weight: 100 parts of mineral material, 3-7 parts of asphalt, 0.2-2 parts of polymer, 0.01-0.3 parts of improving agent, 0.01-0.3 parts of stabilizer, 0.001-0.06 parts of coupling agent. The asphalt concrete of the invention has excellent pavement performance, simple preparation process, and non-toxic and harmless raw materials. At the same time, the pavement temperature can be reduced in summer high temperature seasons, and heat storage can increase the pavement temperature in cold seasons, which is of great significance for prolonging the service life of asphalt pavements. The polymer modified asphalt concrete of the invention belongs to the compound asphalt of environment-friendly, non-toxic and non-corrosion type, and has good road performance. The invention has wide sources of raw materials, no pollution and low price in the production process. The invention has simple preparation process, low cost and good economic benefits.

Description

technical field [0001] The invention belongs to the field of road engineering materials and relates to asphalt concrete, in particular to a polymer modified asphalt concrete. Background technique [0002] With the rapid development of highway construction in our country, asphalt pavement has been widely used in road construction because of its advantages such as comfortable driving, good anti-skid performance, smooth surface, low noise, convenient maintenance and repair, and high traffic safety. However, after the asphalt pavement of many expressways in our country is completed and put into operation, due to the factors of climate and ambient temperature, the pavement has different degrees of high and low temperature diseases, which greatly shortens the service life of the pavement, causing many expressways to enter the overhaul or renovation period ahead of time, resulting in a lot of economic losses. Today's asphalt pavement technology for high and low temperature is main...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26
Inventor 王朝辉问鹏辉杨雪高志伟王海梁陈渊召李振霞冯炜王新岐
Owner CHANGAN UNIV
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