中国塑料 ›› 2025, Vol. 39 ›› Issue (8): 107-112.DOI: 10.19491/j.issn.1001-9278.2025.08.017

• 塑料与环境 • 上一篇    下一篇

多环境废旧橡胶改性沥青碎石封层基体结构黏结强度及路用性能研究

陈自强1,2(), 张绍成3, 张桂铭3, 白丛启3, 李国良4   

  1. 1.昆明理工大学建筑工程学院,昆明 650500
    2.云南省交通发展投资有限责任公司,昆明 650103
    3.云南省公路科学技术研究院,昆明 650103
    4.昆明理工大学建筑工程学院,昆明 650500
  • 收稿日期:2024-09-23 出版日期:2025-08-26 发布日期:2025-07-30
  • 作者简介:陈自强(1983—),男,高级工程师,从事交通基础设施材料基础理论、应用技术等研究,1164363224@qq.com

Study on bonding strength and road application performance of multi⁃environment waste rubber⁃modified asphalt chip seal matrix structure

CHEN Ziqiang1,2(), ZHANG Shaocheng3, ZHANG Guiming3, BAI Congqi3, LI Guoliang4   

  1. 1.School of Civil Engineering and Architecture,Kunming University of Science and Technology,Kunming 650500,China
    2.Yunnan Provincial Transportation Development Investment Co,Ltd,Kunming 650103,China
    3.Yunnan Highway Science and Technology Research Institute,Kunming 650103,China
    4.School of Civil Engineering and Architecture,Kunming University of Science and Technology,Kunming 650500,China
  • Received:2024-09-23 Online:2025-08-26 Published:2025-07-30

摘要:

采用室内试验分析碎石封层结构骨架层基体结构在干燥、自然及潮湿等不同环境作用下的黏结力学性能。通过研究得出基体结构在湿润条件、自然条件及干燥条件下不同时间段强度分析,找出适合预裹覆的最佳沥青用量,同时给出早期适合预裹覆的环境条件,即湿润条件,确定了该工艺作为碎石封层的第一阶段施工工艺;同时将3种条件,按相同碎石撒布率及理论最佳沥青撒布量,在室内进行对比分析,得出其最佳的碎石封层整体结构最佳施工条件,即湿润条件。

关键词: 碎石封层, 结构骨架层, 预裹覆, 基体结构, 废旧胶粉改性沥青

Abstract:

This study investigated the bonding mechanical properties of chip seal matrix structures under three environmental conditions (dry, natural, and moist) through laboratory testing. The development of structural strength over time was evaluated, and the optimal asphalt application rates for precoating were identified. Results indicated that moist conditions provided the most favorable environment for early⁃stage precoating, establishing it as the preferred initial construction phase for chip seals. Comparative analysis of all three conditions under controlled indoor testing was carryout out using both standard chip spreading rates and theoretically optimal asphalt application rates, and the results consistently showed superior performance in moist conditions. These findings indicate that moist environments yield the most effective construction conditions for chip seal matrix structures overall, offering practical guidance for pavement engineering applications.

Key words: chip seal, structural skeleton layer, pre?coating, matrix structure, crumb rubber?modified asphalt

中图分类号: