Study on the preparation and modification mechanism of GO/SBR composite modified emulsified asphalt
Source abstract
Abstract
This paper employs graphene oxide (GO) and anionic styrene-butadiene rubber (SBR) latex as modifiers for road-emulsified asphalt. A silane coupling agent (KH550) is used to modify GO, resulting in the development of a novel GO/SBR composite-modified emulsified asphalt. A mathematical model was optimized to determine the optimal material ratio, which was verified through performance tests. Techniques such as Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) were utilized to investigate the modification mechanism. The results indicated that both the median particle size and storage stability of the GO/SBR composite-modified asphalt were enhanced, with significant improvements in mechanical properties compared to ordinary emulsified asphalt. Microscopic analysis revealed enhanced dispersion of modified GO in asphalt, and the interaction between modified GO and emulsified asphalt was determined to be purely a physical reaction. This study provides valuable insights into the application of GO in road engineering.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Chongqing Jiaotong University
Funding
National Natural Science Foundation of China
References (43)
Show source-provided references
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