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大掺量RAP再生沥青混合料设计及路用性能研究

童以文 高晨光

江西建材Issue(7):90-93,4.
江西建材Issue(7):90-93,4.

大掺量RAP再生沥青混合料设计及路用性能研究

Research on the Design and Performance Evaluation of Large Content RAP Recycled Asphalt Mixtures

童以文 1高晨光2

作者信息

  • 1. 三明市公路事业发展中心,福建 三明 365000
  • 2. 长安大学 公路学院,陕西 西安 710064
  • 折叠

摘要

Abstract

This study using indoor testing,analyzed the different RAP content,recycled asphalt mixture ratio design key parameters and key road performance change rule,the analysis results show that,with the increase of RAP content,the best asphalt mixture oil/gravel ratio has a slight increase in the void rate and the gap rate of the mineral;as the RAP content is increased,the best oil/gravel ratio in the asphalt mix gradually increases,as do the void rate and mineral gap rate.The results show that with the increase of RAP content,the optimal oil-rock ratio of asphalt mixture has slightly increased,the void ratio and mineral gap ratio gradually increased,and the Marshall stability gradually in-creased;with the increase of RAP content,the dynamic stability of the mixture gradually increased,while the low-temperature destructive strain is decreasing,the ratio of splitting tensile strength is gradually decreasing,the fatigue load is gradually increasing.

关键词

路面工程/大掺量RAP/再生沥青混合料/配合比设计

Key words

Pavement engineering/High dosage RAP/Recycled asphalt mixture/Mix proportion design

分类

建筑与水利

引用本文复制引用

童以文,高晨光..大掺量RAP再生沥青混合料设计及路用性能研究[J].江西建材,2024,(7):90-93,4.

基金项目

国家自然科学基金项目《基于彩色图像的沥青路面表面立体数值模拟及其构造评价》(项目编号:51608048),福建省交通科技项目《水泥路面抗滑性能智能识别、监测及恢复关键技术研究》(项目编号:202236). (项目编号:51608048)

江西建材

1006-2890

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