Mechanical properties of gutta-percha sulfide modified asphalt

5th Global Conference on Materials Science and Engineering

Zou, X.Y.^1 ; Gu, X.Y.^2 ; Wang, X.W.^2

Jinhua Highway Administration Bureau, Jinhua

321000, China^1

School of Transportation, Southeast University, Nanjing

210096, China^2

关键词: Application prospect;    Different proportions;    Guttapercha;    Low temperature performance;    Micro mechanisms;    Polymer modified asphalts;    Polymer modifiers;    Temperature sensitivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/164/1/012007/pdf
DOI  :  10.1088/1757-899X/164/1/012007

来源: IOP

【 摘 要 】

Gutta-percha is the isomer of caoutchouc and can be used to enhance the performance of asphalt. In this paper, the produce proceedings of gutta-percha sulfide and gutta-percha sulfide modified asphalt are introduced. The performance indices of gutta-percha sulfide modified asphalt samples with different proportions are examined based on laboratory tests and the optimum ratio of gutta-percha and sulfur is decided.The micromechanism, temperature sensitivity, high and low temperature properties and viscoelasticity of the polymer modified asphalt are analyzed to discuss the modified mechanism and to decide the optimal polymer content. Low temperature bending tests are carried out to verify the low temperature performance of gutta-percha sulfide modified asphalt mixture. Research results showed that gutta-percha sulfide modified asphalt has good low temperature performance and a promising application prospect in the cold regions.