Enhancing Mid-Term Strength and Microstructure of Fly Ash–Cement Paste Backfill with Silica Fume for Continuous Mining and Backfilling Operations
Xiaoping Shao, Zhengchun Wang, Renlong Tang, Bingchao Zhao, Jianbo Ning, Chuang Tian, Wei Wang, Yibo Zhang, Xing Du · 2024
Read Enhancing Mid-Term Strength and Microstructure of Fly Ash–Cement Paste Backfill with Silica Fume for Continuous Mining and Backfilling Operations by Xiaoping Shao, Zhengchun Wang, Renlong Tang, Bingchao Zhao, Jianbo Ning, Chuang Tian, Wei Wang, Yibo Zhang, Xing Du (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11676167.txt.
Description
Xiaoping Shao and co-authors worked in 2024 on making mine backfill stronger by adding silica fume to a fly ash and cement mix. Backfill fills mined-out space, and using fly ash cuts cost and carbon output. The drawback is weak strength in the early and middle stages, which matters when mining and filling run side by side.
The team varied the silica fume share and measured flow, strength, and fine structure. A moderate share gave the best mid-term strength, a clear gain over the mix without it. Too much hurt both flow and strength. Study of the fine structure showed the additive helped form a binding gel and filled tiny pores at the best dose.
Catalog record
| CREATOR | Xiaoping Shao, Zhengchun Wang, Renlong Tang, Bingchao Zhao, Jianbo Ning, Chuang Tian, Wei Wang, Yibo Zhang, Xing Du |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 52 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |