摘要
利用 1 0 0多组沥青数据对国内外学者提出的五个由沥青四组分计算软化点的公式进行了验证。结果表明 ,其标准偏差大多大于 5℃ ,最高达 2 4 .4℃ ,尤其是氧化沥青误差更大。可见仅用四组分含量来计算沥青软化点是不够的 。
Five equations for calculating the softening point by four components, which suggested by domestic and overseas scholars, were verified through hundreds of group data of bitumen. Results show that most of standard deviation were over 5℃,the highest one of which was 24.4℃. Generally, oxidized bitumen has higher standard deviations than other bitumen. Thus it is considered that the characteristics of the four components should be involved in calculating the softening point as well as the quantity of the four components.
出处
《石油沥青》
2003年第2期50-53,共4页
Petroleum Asphalt
