CAJ | 학술논문

为了解决机场沥青道面紫外光老化问题，通过分析受阻胺类老化剂对强紫外线辐射下基质沥青和 SBS 改性沥青高温、疲劳及老化性能的影响，提出了采用受阻胺类老化剂解决沥青老化问题的方法．采用旋转薄膜烘箱试验模拟沥青短期老化及室内紫外光老化箱模拟沥青长期老化，研究了受阻胺类老化剂 GW-944对光老化前后沥青性能的影响．试验结果表明：GW-944光老化剂对基质沥青高温性能改善效果欠佳，GW-944光老化剂能显著改善 SBS 改性沥青性能，其光老化后的疲劳、高温和抗老化能力得以提升．该抗紫外光老化剂对 SBS 改性沥青进行综合性能改善时，建议使用0．7％掺量．
위료해결궤장력청도면자외광노화문제，통과분석수조알류노화제대강자외선복사하기질력청화 SBS 개성력청고온、피로급노화성능적영향，제출료채용수조알류노화제해결력청노화문제적방법．채용선전박막홍상시험모의력청단기노화급실내자외광노화상모의력청장기노화，연구료수조알류노화제 GW-944대광노화전후력청성능적영향．시험결과표명：GW-944광노화제대기질력청고온성능개선효과흠가，GW-944광노화제능현저개선 SBS 개성력청성능，기광노화후적피로、고온화항노화능력득이제승．해항자외광노화제대 SBS 개성력청진행종합성능개선시，건의사용0．7％참량．
In order to solve the problem of ultraviolet aging of airport asphalt pavement,the solution of aging problem using hindered amine anti-ageing agent was presented.Influence of hindered amine anti-ageing agent on the high temperature performance,fatigue and aging performance of basic asphalt and SBS modified asphalt under strong ultraviolet radiation were analysed.RTFOT was used to simulate the short-term aging of asphalt,and ultraviolet aging oven test was used to simulate the long-term aging. Then DSR and ductility test were conducted to research the performance of asphalt mixed with hindered amine anti-aging agent GW-944 before and after ultraviolet aging.Test results indicated:GW-944 had less improvement effect on high temperature performance of base asphalt,and the effect was irregular. Meanwhile GW-944 can significantly improve the performance of SBS modified asphalt,the fatigue performance,high temperature performance and anti-aging performance were promoted.Therefore,this ultraviolet anti-aging agent is recommend to improve comprehensive performance of SBS modified <br> asphalt,and the optimal content is 0.7%.