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关于废轮胎胶粉粒改性沥青胶结材料的微观分析方法研究综述

2021-07-11郑敏楠

粘接 2021年4期

郑敏楠

摘 要:橡胶复合改性沥青是一种有利于实现节能、降耗、减排的环保型材料,被广泛应用于各类型路面建设。文章针对废轮胎胶粉粒改性沥青胶结材料的微观分析方法进行综述,认为微观分析方法能够优化传统力学指标分析法,从更全面角度对废轮胎胶粉粒改性沥青胶结材料材料性能、改性机理、分子结构定性等进行分析。文章对该类型材料微观分析方法的总结,旨在为废轮胎胶粉粒改性沥青胶结材料微观表征分析技术应用提供参考借鉴。

关键词:橡胶复合改性沥青,微观表征法,谱学分析法,热重分析法

中图分类号:TU414 文献标识码:A 文章编号:1001-5922(2021)04-0025-04

Abstract:Rubber composite modified asphalt is a kind of environmental protection material which is conducive to energy conservation, consumption reduction and emission reduction. It is widely used in various types of pavement construction. In this paper, the microanalysis methods of waste tire powder modified asphalt cementing materials are summarized, and it is believed that the microanalysis methods can optimize the traditional mechanical index analysis method, and analyze the material properties, modification mechanism and molecular structure of waste tire powder modified asphalt cementing materials from a more comprehensive perspective. This paper summarizes the microanalysis methods of this type of materials, aiming to provide reference for the application of micro-characterization and analysis technology of waste tire rubber powder modified asphalt cementing materials.

Key words:rubber compound modified asphalt, microscopic characterization method, spectroscopic analysis method, thermogravimetric analysis method

0 引言

橡膠复合改性沥青,是一种以废轮胎胶粉粒与基质沥青为主要材料,在高温环境下对两种材料混合物进行充分拌合,在废轮胎胶粉粒与基质沥青发生溶胀反应以后形成的改性胶结材料[1]。一方面利用废轮胎胶粉粒进行改性沥青胶结材料加工,能够有效实现废旧轮胎的回收再利用,降低废旧轮胎及其处理方法对外部环境等的污染;另一方面利用废轮胎胶粉粒改性得到的橡胶复合改性沥青,具备较优于一般沥青的抗高低温、抗变形、抗开裂以及疲劳性能。橡胶复合改性沥青,是当前高等级公路修建中应用最为广泛的沥青材料之一。

对橡胶复合改性沥青方面的研究较多,多以性能分析、应用技术改进为主,最常见的研究是通过表征方法以不同橡胶复合改性……

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