The Effects of Waterborne Polyurethane-Modified Cement on the Mechanical Characterization of Grouting Concretion Stone
Jingyu Zhang, Sili Chen, Xinchao Duan, Jinzhu Meng, Junxiang Wang · 2024
Read The Effects of Waterborne Polyurethane-Modified Cement on the Mechanical Characterization of Grouting Concretion Stone by Jingyu Zhang, Sili Chen, Xinchao Duan, Jinzhu Meng, Junxiang Wang (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-11642702.txt.
Description
Jingyu Zhang and co-authors tune a grout for tunnels in cold regions in a study from 2024. Grout fills and seals rock around tunnels, and its set stone must bear load for decades. Plain cement grout can crack and weaken in the cold.
Waterborne polyurethane was mixed into the cement to improve it. Orthogonal tests found the best recipe: a set water ratio plus small shares of cellulose, polyurethane, and a water reducer. Set stones were then hammered in dynamic tests at varied ages. Stone particle size drove the dynamic strength most. The tuned grout aims at safer, steadier tunnels in cold ground. Mines and rail tunnels in northern regions are the target users.
Catalog record
| CREATOR | Jingyu Zhang, Sili Chen, Xinchao Duan, Jinzhu Meng, Junxiang Wang |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 48 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |