Abstract The objective of this study is to enhance the properties of crumb rubber (CR) derived from the tread and sidewalls of passenger and truck waste tires by adding bitumen (B) and oxidized bitumen (OB). On this context, CR was activated and modified by adding different chemical ingredients to convert it into modified crumb rubber (MCR). OB was irradiated at 25 kGy to get irradiated oxidized bitumen (IOB) with the aim of study the effect of irradiation on the samples in the presence and absence of sulfur element. The crosslinking density, mechanical parameters and thermal stability of the developed blend were examined. Furthermore, chemical resistance behavior, vibration tests which reflecting the velocity level and sound proofing performance were discussed. Remarked improvement in the mechanical, thermal and various applications of MCR were achieved by the incorporation of OB especially at 10 phr and gamma irradiation.

中文翻译：

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伽马辐照和氧化沥青对各种应用的改性粒状橡胶性能的影响

摘要 本研究的目的是通过添加沥青 (B) 和氧化沥青 (OB) 来增强源自客车和卡车废轮胎胎面和胎侧的碎胶 (CR) 的性能。在此背景下，通过添加不同的化学成分将 CR 活化和改性，将其转化为改性粒状橡胶 (MCR)。OB 在 25 kGy 下进行辐照以获得辐照氧化沥青 (IOB)，目的是研究辐照在硫元素存在和不存在下对样品的影响。检查了开发的共混物的交联密度、机械参数和热稳定性。此外，还讨论了耐化学性行为、反映速度水平和隔音性能的振动测试。显着改善机械，