摘要
文中旨在研究由竹类生物质慢速热解生物油改性沥青的抗老化性能。将基质沥青与生物油(0%、6%、12%)拌合制备生物沥青,并对生物沥青进行老化试验。采用傅里叶变换红外光谱法对老化和未老化沥青进行测试,通过计算沥青的羰基指数、亚砜指数以及老化活化能,分析发现生物沥青的亚砜指数低于基质沥青,同时生物沥青的老化活化能高于基质沥青。表明生物沥青具有比基质沥青更好的抗老化性能。
The purpose of this paper is to study the anti-aging performance of asphalt modified from slow pyrolysis bio-oil from bamboo biomass.The base bitumen is mixed with bio-oil(0%,6%,12%)to prepare bio-bitumen,which is subject to aging tests.Fourier transform infrared spectroscopy is used to test aged and unaged bitumen.By calculating the carbonyl index,sulfoxide index and aging activation energy of bitumen,the sulfoxide index of bio-bi⁃tumen is lower than that of base bitumen,and the aging activation energy of bio-bitumen was higher than that of base bitumen,indicating that bio-bitumen had better anti-aging performance than base bitumen.
作者
陈琪
CHEN Qi(Zhejiang University,Hangzhou 310058,China)
出处
《低温建筑技术》
2023年第12期37-40,共4页
Low Temperature Architecture Technology
关键词
生物沥青
抗老化性能
老化活化能
bio-bitumen
anti-aging performance
aging activation energy
