Strengthening Effect of C9 Petroleum Resin on SBS Modified Asphalt

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Strengthening Effect of C9 Petroleum Resin on SBS Modified Asphalt

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[1]LIANG Jiukai,OKUMURA Ummin,YUAN Weijun.Strengthening Effect of C9 Petroleum Resin on SBS Modified Asphalt[J].Journal of Zhengzhou University (Engineering Science),2022,43(02):105-110.[doi:10.13705/j.issn.1671-6833.2022.02.008]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 43 Number of periods: 2022 02 Page number: 105-110 Column: Public date: 2022-02-27

Title:: Strengthening Effect of C9 Petroleum Resin on SBS Modified Asphalt

Author(s):: LIANG Jiukai¹; OKUMURA Ummin²; YUAN Weijun¹; 1.Henan Transportation Inspection Institute Co.， Ltd., Zhengzhou 450000, China;
2.School of Water Conservancy Science and Engineering, Zhengzhou University, Zhengzhou 450001, China

Keywords:: road engineering; modified asphalt; C9 petroleum resin; SBS modified asphalt; performance strengthening

CLC:: U416

DOI:: 10.13705/j.issn.1671-6833.2022.02.008

Abstract:: In order to enhance the storage stability and road performance of SBS modified asphalt, C9 petroleum resin, a cheap and excellent by-product of petroleum cracking, was compounded with SBS modifier to prepare high-performance modified asphalt. The effects of C9 petroleum resin with different dosage on the physical properties, storage stability, high temperature performance, low temperature performance and fatigue performance of the composite modified asphalt were investigated. It was found that the addition of C9 petroleum resin could reduced the softening point difference ΔTR&B and the distance between the main curves of rheological properties, improve the storage stability of modified asphalt. Due to its high softening point, the asphalt modified by C9 petroleum resin and SBS had excellent high temperature deformation resistance. Under the same pressure and temperature, the Jnr of the modified asphalt was significantly reduced than that without C9 petroleum resin. Proper amount of C9 petroleum resin was helpful to improve the low temperature crack resistance and fatigue resistance of modified asphalt. However, owing to the brittleness of C9 petroleum resin at low temperature, its dosage should 6%. The storage stability, high temperature deformation resistance, low temperature crack resistance and fatigue resistance of SBS modified asphalt were significantly enhanced by adding C9 petroleum resin.

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Last Update: 2022-02-25