影响针入度分析准确度的因素探讨  

Discussion on Influence Factors of Accuracy of Penetration Analysis

作　　者：郭兰[1] 叶久良[1] 宁向民[1] 

机构地区：[1]中国石油化工股份有限公司洛阳分公司,洛阳471012

出　　处：《石油沥青》2011年第6期60-62,共3页Petroleum Asphalt

摘　　要：就水浴温度精度、不同厂家标准针、沥青放置时间长短及重复加热对针入度及针入度比的影响进行探讨,试验表明这些因素对针入度结果影响较明显,而对针入度比结果影响并不大。In this paper, certain research was done to explore the influence of the precision of water temperature from the standard needle by different manufacturers, the storage period of asphalt , the reheating on penetration and the penetration ratio. The experiments showed that these factors had a fairly obvious influence on the penetration, but do little to the penetration ratio.

关 键 词：水浴温度精度 标准针 放置时间 重复加热 针入度 针入度比 

分 类 号：U414[交通运输工程—道路与铁道工程]