冷再生二灰碎石基层厚度控制

Thickness Control of Cold Recycling Lime Fly-Ash Base Course

冷再生二灰碎石基层是较新颖的结构形式,在旧路改建工程中有很强的应用前景。由于旧路面受到破坏,平整度差,该结构层的厚度控制在实际施工中是个难点。结合某路面翻修工程实例,阐述通过高程和拌和工艺双重控制,可以使该结构层的厚度指标达到规范要求,不会再出现夹层或结合料含量减少现象。

Cold recycling lime fly-ash base course is a relatively new structure.It has strong application prospect in old road reconstruction projects.For the old pavement has been damaged,it has poor smoothness,and the thickness control of this structure becomes the difficulty in the actual construction.Combined with the refurbishment practice of one road pavement,this paper elaborates that the thickness of this structure can meet the specification requirements by double controlling elevation and mixing technology.There will no more appear mezzanine or binder content decreasing.