沥青路面的横向裂缝

• 作 者: 菅原照雄 杨孟余
• 出 处: 国外公路
• 发表日期: 1982年03期
• 关键词: 沥青路面 温度裂缝 开裂问题 流动变形 温度变化 横向裂缝 沥青混合料 脆点 软化点 路面结构

一、温度裂缝的破坏形态过去对沥青路面的破坏原因集中考虑了流动变形和开裂。在寒冷地区还多一个冻胀的问题。从力学角度来看还有因强度不足而产生的开裂问题。本文所要谈的是第三种破坏形态。因为前两种都与行车荷载有关,而温度裂缝是因温度变化产生的,与行车荷载完全没有关系。

First, the destruction of the form of temperature cracks In the past due to the destruction of asphalt pavement due to flow deformation and cracking. In the cold area more than a frost heave problem. From a mechanistic point of view, there are cracking problems due to insufficient strength. This article is about the third form of destruction. Because the first two are related to driving loads, and temperature cracks are caused by temperature changes, and the driving load has nothing to do.