摘要
能否有效地检验SAC(多碎石沥青混凝土)级配是否形成骨架密实结构或是处于哪种骨架结构状态(悬浮、一般、紧密)是SAC级配设计方法的关键所在。通过具体实例的分析与计算,对SAC级配设计方法中所提及的两种对混合料骨架形成的检验方法进行了初步的研究。并以SAC25-1为例讲述了当级配未形成骨架结构时应如何调整。
The key step in SAC gradation design is validation of the verification of SAC gradation＇s skeleton and dense structure status. This paper based on the concrete example＇s analyze and calculation, compared the tow different methods on the verification about the skeleton and dense structure status, and in the end, this paper based on the SAC-25 gradation, comply with the method which put forward by academician Sha Qingling, introduced how to adjust the gradation when the gradation is not skeleton and dense structure.
出处
《石油沥青》
2007年第1期39-42,共4页
Petroleum Asphalt
关键词
沥青混凝土
SAC
级配设计
检验
调整
Asphalt concrete
SAC
Gradation design
Verification
Adjust
