Preparation and Performance Study of Thermoplastic Polyurethane/Graphene Oxide Modified Asphalt
Jiang Du, Guokai Li, Kezhen Yan, Xiaowen Zhao
TL;DR
This paper studies how adding thermoplastic polyurethane and graphene oxide improves asphalt's performance for better road use.
Contribution
A novel TPU/GO additive with dynamic disulfide bonds is introduced to enhance asphalt performance.
Findings
TPU/GO-modified asphalt shows significantly better low-temperature ductility and stress relaxation.
GO improves asphalt's high-temperature rutting resistance and creep recovery.
8% TPU/GO is the optimal dosage for balancing multiple performance aspects.
Abstract
To prepare a modified asphalt with excellent road performance, thermoplastic polyurethane/graphene oxide (TPU/GO) incorporating dynamic disulfide bonds was developed as an additive and the synergistic effect of TPU and GO on asphalt was evaluated. Modified asphalts with different TPU/GO contents (2%, 4%, 6%, 8%) were prepared and TPU-modified asphalts were also prepared as control groups. The compatibility between TPU/GO and asphalt was evaluated by fluorescence microscopy (FM) and the dispersion of GO in TPU and asphalt was observed by emission scanning electron microscope (SEM). The road performance of modified asphalts was also assessed in this study. The FM results show that TPU/GO has good compatibility with asphalt, and the SEM results reveal that GO can be uniformly dispersed in TPU matrix, so that GO can also be evenly dispersed in asphalt and avoid the problem of GO aggregation…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAsphalt Pavement Performance Evaluation · Petroleum Processing and Analysis · Infrastructure Maintenance and Monitoring