核化学与放射化学Issue(5)：310-316,7.DOI:10.7538/hhx.2014.36.05.0310
SBS及60 Co辐照SBS改性沥青的制备
Preparation Methods of Asphalt Modified by SBS and SBS Irradiated by 60 Co
丁小娇 1官国英 2王晓静 1罗志武 2叶肇云1
作者信息
- 1. 中国原子能科学研究院 同位素研究所，北京 102413
- 2. 原子高科股份有限公司，北京 102413
- 折叠
摘要
Abstract
By optimizing conditions experiments of styrene-butadiene-styrene block copoly-mer (SBS)content,cosolvent type and dosage,processing temperature,processing time, the radiation dose rate and absorbed dose,the preparation methods of SBS modified asphalt, 60 Co irradiated SBS and irradiation SBS modified asphalt have been studied;by testing the performance index of modified asphalt cement it is to evaluate the preparation methods.The experimental results show that the mass fraction of SBS is 15%-20%,the mass fraction of cosolvent is 15%-30%,blending,then at 100-165℃,100-200 r/min mechanical agitation 20-30 min,at 180-210 ℃,100-200 r/min mechanical agitation 90-140 min;or at 120-160 ℃, 100-200 r/min mechanical agitation 80-100 min,in these conditions the modified asphalt cement is better;the asphalt cement modified by SBS which was irradiated by gamma rays from a 60 Co source in vacuum at 0.75 kGy/h,30 kGy have good performance.关键词
SBS/辐照 SBS/改性沥青Key words
SBS/irradiation SBS/modified asphalt分类
建筑与水利引用本文复制引用
丁小娇,官国英,王晓静,罗志武,叶肇云..SBS及60 Co辐照SBS改性沥青的制备[J].核化学与放射化学,2014,(5):310-316,7.
