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Waste rubber powder modified epoxy asphalt material and preparation method thereof

A technology of epoxy asphalt material and waste rubber powder, which is used in building thermal insulation materials, chemically processing tar asphalt/petroleum asphalt/natural asphalt, building components, etc. The high cost of epoxy asphalt can reduce pollution, reduce production costs, and enhance high and low temperature crack resistance and fatigue resistance.

Inactive Publication Date: 2012-06-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of epoxy asphalt is too high. After adjusting the formula, although the cost is significantly reduced, its low-temperature mechanical properties are also significantly reduced, that is, the low-temperature crack resistance is significantly reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] First, functionalize the base asphalt, that is, introduce carboxyl or acid anhydride groups through the Diels-Alder reaction; then add an appropriate amount of waste rubber powder to mix and react with the modified asphalt with carboxyl or anhydride groups. After stirring or high-speed shearing, the modified asphalt A component is made. At a certain temperature, mix component A and component B uniformly at a mass ratio of 8 to 13:1, and component B is epoxy resin to obtain waste rubber powder modified epoxy asphalt material.

[0028] The present invention will be further described below through specific examples, but none of the examples limits the present invention.

[0029] 【Implementation column 1 】

[0030] Add 90 parts of petroleum asphalt (US Shell) heated to 100~140°C into the reactor, add 2 parts of 3-phenyl-2-acrylic acid, raise the temperature to 150~155°C, and after the pressure is stable, feed N 2 , keep the total pressure at 0.30MPa, and after 4 hours ...

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PUM

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Abstract

The invention discloses a waste rubber powder modified epoxy asphalt material and a preparation method thereof. The epoxy asphalt material consists of two components A and B, wherein the component A consists of 90 to 120 mass parts of modified asphalt with carboxyl or acid anhydride group, 5 to 10 mass parts of aliphatic dibasic acid, dimer acid or alcohol acid resin, 0.1 to 5 mass parts of aliphatic acid anhydride and 5 to 15 mass parts of waste rubber powder; and the component B is epoxy resin. The mass ratio of the component A to the component B is (8-13): 1. The material has good high and low-temperature mechanical property. The epoxy asphalt is modified by adding the waste rubber, so that the low-temperature performance of the epoxy asphalt is improved, and the production cost of the epoxy asphalt is reduced; and waste tyres are utilized, so that environmental pollution is reduced. The material can be used as a renewal and replacement material for paving roads and bridges, and is suitable for occasions of expressways, cement viaducts, urban trunks and the like.

Description

technical field [0001] The invention relates to the preparation of a modified asphalt material, in particular to an epoxy asphalt material toughened and modified by waste rubber powder. Background technique [0002] For a long time, SBS modified asphalt has been widely used in road and bridge paving due to its good performance. However, with the continuous development of the transportation industry, heavy-duty traffic has become the norm, and the traffic volume has increased significantly, requiring the road surface to have better high and low temperature performance and deformation resistance. Ordinary SBS modified asphalt is becoming more and more difficult to do. [0003] In addition, with the rapid development of the transportation industry and the automobile industry, a large number of waste rubber tires appear, which deteriorates the environment, destroys vegetation growth, and affects human health and living environment. Making waste tires into rubber powder as an a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08L21/00C10C3/02
Inventor 陈志明孔庆磊焦真邵利
Owner SOUTHEAST UNIV
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