Rheological studies of performance grade bitumens prepared by blending elastomeric SBS (styrene butadiene styrene) co-polymer in base bitumens

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• 作者：Kamal Kumar ; Anand Singh ; Samir K. Maity ; Manoj Srivastava ; Manisha Sahai ; Raj K. Singh ; ^{rksingh@iip.res.in" class="auth_mail" title="E-mail the corresponding author} ; Madhukar O. Garg
• 关键词：Bitumen ; SBS polymer ; Dynamic shear rheometer ; Rheology ; Complex shear modulus
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2016
• 出版时间：25 December 2016
• 年：2016
• 卷：44
• 期：Complete
• 页码：112-117
• 全文大小：1029 K

文摘

Performance of bituminous binder in terms of viscoelastic behavior can be improved by addition of requisite polymers. Two performance grade bituminous binder PG58 and PG64 were prepared by blending an elastomeric styrene butadiene styrene (SBS) co-polymer in 60/70 and 80/100 grade base bitumen respectively. The rheological properties of prepared bitumens have been studied by AR 1500 eX Asphalt Rheometer at minimum instrument inertia of 16.85 μNm². Resistance to permanent deformation or deformation resistance is also determined in terms of G′_{modified bitumen}/G′_{base bitumen}, G″_{modified bitumen}/G″_{base bitumen} and G*_{modified bitumen} /G*_{base bitumen}; which helps to predict the viscoelastic behavior of bituminous binder.