基于冲击贯入法的温拌沥青混合料合理压实温度的确定  

Determination of warm-mix asphalt reasonable compaction temperature range by impact penetration test

作　　者：王黎明[1,2] 谭忆秋[1] 石振武[2] 刘双[2] 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,哈尔滨150086 [2]东北林业大学土木工程学院,哈尔滨150040

出　　处：《吉林大学学报（工学版）》2013年第6期1494-1499,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家'十一五'科技支撑项目(2008BAG10B02);黑龙江省自然科学基金项目(E201136)

摘　　要：采用变温冲击贯入试验,基于类比热态沥青混合料当量抗剪强度原理,通过贯入指标由已知混合料压实温度推及到温拌混合料的压实温度。研究了变温度冲击贯入试验的方法和过程,推导出了4种不同温拌混合料的合理压实温度范围。相对变温度成型,该方法能够充分反映沥青粘度变化对混合料工作性质的影响,在整个工作温度段内对温度敏感,并且操作简单、过程迅速。The variable temperature penetration tests were conducted to derive the compaction temperature from hot-mix asphalt to war-mix asphalt using penetration index. It is based on the principle of analog of hot mixture equivalent shear strength. The variable temperature penetration testing method and process were investigated, and the reasonable compaction temperature ranges of four types of warm-mix asphalt were derived. Compared with variable-temperature control compaction test, the penetration test can fully reflect the impact of the change of asphalt viscosity on the workability of the mixture. The penetration test is also sensitive to temperature with the entire operating temperature range. The operation of the penetration test is easy and it takes shorter time.

关 键 词：道路工程 压实温度 冲击贯入试验 温拌沥青混合料 施工性能 

分 类 号：U416[交通运输工程—道路与铁道工程]