Effect of Viscosity Modifiers on Structure Formation in Cement Systems for Construction 3D Printing
| Autor: | G. S. Slavcheva, O. V. Artamonova, M. A. Shvedova, E. A. Britvina |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Cement Materials science General Chemical Engineering Metals and Alloys 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Inorganic Chemistry Viscosity Compressive strength Rheology 0103 physical sciences Nano Materials Chemistry medicine Composite material 0210 nano-technology Hydrate Xanthan gum medicine.drug Hardening (computing) |
| Zdroj: | Inorganic Materials. 57:94-100 |
| ISSN: | 1608-3172 0020-1685 |
| DOI: | 10.1134/s0020168521010143 |
| Popis: | This paper presents experimental data illustrating the effect of viscosity modifiers on the structure formation in cement systems and their rheological characteristics and strength. It is shown that SiO2- and Al2O3 · SiO2-based nano- and microparticles, similar in crystal-chemical structure to newly formed hydrate phases, are the most effective viscosity modifiers, capable of reducing the setting and hardening times by a factor of 1.3–1.5 and raising the plastic strength of the cement systems by four to five times and their compressive strength by 30%. Xanthan gum and potassium pyrophosphate are effective modifiers for controlling the rheological characteristics of the cement systems, but they are incapable of activating structure formation and hardening processes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |