Modification of the MCM-41 mesoporous silica and its influence on the hydration and properties of a cement matrix
Artykuł w czasopiśmie
MNiSW
140
Lista 2021
| Status: | |
| Autorzy: | Szeląg Maciej, Janek Martyna, Panek Rafał, Madej Jarosław, Fronczyk Joanna |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2022 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 344 |
| Numer artykułu: | 128253 |
| Strony: | 1 - 15 |
| Impact Factor: | 7,4 |
| Web of Science® Times Cited: | 7 |
| Scopus® Cytowania: | 8 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This research was supported by "Fly ash as the precursors of functionalized materials for applications in environmental engineering, civil engineering and agriculture" no. POIR.04.04.00-00-14E6/18-00 project carried out within the TEAM-NET programme of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 29 czerwca 2022 |
| Abstrakty: | angielski |
| Recently, there has been a growing interest in materials that make it possible to reduce cement consumption in the concrete technology while improving the parameters of a final product. In this paper the validity of using, as an admixture to cement, the mesoporous silica of the MCM-41 structure type (MCM-41), modified with funcosil (hydrophobizing agent), triethanolamine, iron nitrate, and gluconic acid, has been analyzed. The effectiveness of the modification was evaluated on the basis of chemical and phase composition analysis, while the effect of admixtures on the cement matrix (CM) properties was additionally evaluated on the basis of selected physico-mechanical parameters and a hydration heat analysis. The results showed the quantitative effect of the modifications on the MCM-41 and CM composition. All the admixtures affected the rate and total amount of heat released during the hydration process. The presence of the triethanolamine and gluconid acid significantly delayed the main peak of the hydration process while the presence of the iron nitrate and gluconid acid decreased the total amount of heat released. Regardless of the maturation time, an increase in the CM compressive strength with the modified MCM-41 and a decrease in the percentage water loss during drying were observed. Only the gluconic acid modification caused a deterioration in the strength parameters. In conclusion, the use of the MCM-41 and its modifications in the production process of cement composites can positively affect the properties of the final product. |
