The Role of MWCNTs in Enhancing the Foam Stability and Rheological Behavior of Cement Pastes That Contain Air-Entraining and Superplasticizer Admixtures
Ina Pundienė, Jolanta Pranckevičienė, Jakob Birkedal Wagner · 2023
Read The Role of MWCNTs in Enhancing the Foam Stability and Rheological Behavior of Cement Pastes That Contain Air-Entraining and Superplasticizer Admixtures by Ina Pundienė, Jolanta Pranckevičienė, Jakob Birkedal Wagner (2023) 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-10745576.txt.
Description
Ina Pundienė and co-authors stir carbon nanotubes into cement and watch the foam, in this 2023 study. Air-entraining admixtures bubble cement paste on purpose, to guard concrete against frost, while superplasticizers keep it flowing. Multi-walled carbon nanotubes promise strength and structure at the nanoscale. How the three additives work together was the open question.
The team checked foam stability, viscosity, electrical conductivity, dispersion, and setting times across mixes. The tubes improved foam stability and made the paste thicker, but how much hinged on which superplasticizer rode along and whether the air entrainer was present. Those agents steered the system: the polycarboxylate and polyacrylate types shifted dispersion and setting, with effects growing stronger in the full mixture. The upshot is a design principle: in modern cement, additives are a chord, not soloists, and the blend can be tuned by choice.
Catalog record
| CREATOR | Ina Pundienė, Jolanta Pranckevičienė, Jakob Birkedal Wagner |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 57 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |