Effects of Carbon Nanotubes on Mechanical Strength, Damage Process, and Microstructure of Lithium Tailing Backfilling
Shufen Hu, Huadong Guan, Cai Wu, Yani Lu, Daopei Zhu
TL;DR
This study shows that adding carbon nanotubes improves the strength and microstructure of lithium tailings backfill used in construction.
Contribution
The novel contribution is demonstrating that 0.2% carbon nanotubes significantly enhance compressive strength and hydration in cemented lithium tailings backfill.
Findings
Adding 0.2% carbon nanotubes increased compressive strength by up to 95.31%.
Carbon nanotubes increased hydration products without changing their type.
CNTs helped form a stronger three-dimensional network in the backfill material.
Abstract
In this study, common multiwalled and carboxylated carbon nanotubes (CNTs) were added to the cemented lithium tailings backfill (CLTB). The effects of CNTs on the mechanical properties, hydration products, damage process, and microstructure of CLTB specimens were studied by uniaxial compression (UCS), infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM). The experimental results show that the addition of CNTs effectively increased the compressive strength compared with the blank control group. When the concentration was 0.05–0.20%, the compressive strength was proportional to the content, the optimal addition amount was 0.2%, and the enhancement effect was 75% and 95.31%, respectively. The FT-IR results indicate that the addition of CNTs increased the total amount of the hydration product but did not affect its type. The hydration of the three-dimensional reciprocal…
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
TopicsTailings Management and Properties · Rock Mechanics and Modeling · Mine drainage and remediation techniques