旧水泥混凝土路面罩面层结构研究

杜永平¹ 王志宇²

(上海浦东建筑设计研究院有限公司¹ 上海浦东项目建设管理有限公司²)

摘要：在分析旧水泥混凝土路面加罩沥青混凝土面层从施工到使用中出现的损坏特征以及各层测试弯沉数据的基础上，总结了旧水泥混凝土路面加罩层的力学特征，提出了采用强化面层、改善罩面层材料性能、罩面层与旧水泥混凝土路面界面处理的结构措施防止反射裂缝，并对这些措施进行了力学分析和案例论证。

关键词：旧水泥混凝土；沥青混凝土加罩层；反射裂缝

Bituminous mixture overlay on existing cement concrete pavement

Du Yong -ping ,Wang Zhi -yu

Abstract: Based on analyzing damage characteristics of bituminous mixture overlay pavement on existing cement concrete pavement and deflection data different layers, mechanical characteristics of the pavement are summarized. The construction treatments is brought forward to prevent reflection crack, such as strengthening asphalt overlay, improving material performance of asphalt overlay and paving a stress absorbed layer, and the treatments are proved by mechanical analysis and engineering case.

Key words：existing cement concrete pavement; Asphalt overlay; reflection crack