中国石油大学学报（自然科学版）2024，Vol.48Issue(2)：200-208,9.DOI:10.3969/j.issn.1673-5005.2024.02.023
SBS改性沥青相态粒径与发育温度及时间的关系
Relationship between phase particle size and development temperature and time of SBS modified asphalt
摘要
Abstract
In order to study the relationship between phase particle size and development temperature and time of SBS-modi-fied asphalt,and improve the detection efficiency of thermal storage stability of SBS modified asphalt,the fluorescence micro-scopic phase observation and performance detection of different types of SBS modified asphalt were carried out.The self-com-piled image recognition program based on the connected domain labeling algorithm was used to quantify the fluorescence mi-croscopic phase size.The results show that the phase particle size of SBS modified asphalt is in good linear relationship with the development time,and the coefficient of determination R2 is higher than 0.96.The time and temperature have significant complementarity to the phase particle size.The phase particle size has an important influence on the segregation test results of modified asphalt.According to the phase particle size range,the thermal storage stability is divided into three states:stable,metastable and unstable.The phase particle size can replace the segregation index as the control parameter to quickly charac-terize the thermal storage stability of SBS modified asphalt.The linear regression equation of development temperature and time parameters is established with the phase particle size of 1.8 and 1.6 μm as the reference condition.The absolute time deviation between the predicted and measured values is basically controlled within 30 min,and the relative deviation was ba-sically controlled within 10%.The method of determining the development temperature and time of SBS modified asphalt pro-duction with phase particle size of 1.8 and 1.6 μm,the modified asphalt has balanced road performance and good thermal storage stability.关键词
道路工程/SBS改性沥青/荧光显微相态/相态粒径/储存稳定性/发育温度/发育时间Key words
road engineering/SBS modified asphalt/fluorescence microscopic phase/phase particle size/storage stability/development temperature/development time分类
石油、天然气工程引用本文复制引用
林江涛,樊亮,申全军,李永振,赵品晖..SBS改性沥青相态粒径与发育温度及时间的关系[J].中国石油大学学报（自然科学版）,2024,48(2):200-208,9.基金项目
国家自然科学基金项目(51608511) （51608511）
山东省交通运输科技创新计划项目(2020B34) （2020B34）
