Increase the Performances of Lime Finishing Mixes Due to Modification with Calcium Silicate Hydrates
Artykuł w czasopiśmie
MNiSW
70
Lista 2021
| Status: | |
| Autorzy: | Loganina Valentina, Sergeeva Kristina, Fediuk Roman, Uvarov Valery, Vatin Nikolai, Vasilev Yuriy, Amran Mugahed, Szeląg Maciej |
| Dyscypliny: | |
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| Rok wydania: | 2021 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 4 |
| Wolumen/Tom: | 11 |
| Strony: | 1 - 21 |
| Web of Science® Times Cited: | 10 |
| Scopus® Cytowania: | 12 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | The research is partially funded by the Ministry of Science and Higher Education of the Russian Federation as part of World-class Research Center program: Advanced Digital Technologies (contract No. 075-15-2020-934 dated 17 November 2020). |
| 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: | 9 kwietnia 2021 |
| Abstrakty: | angielski |
| Lime plaster mixes are becoming more and more popular in the world’s building materialsmarket every year. Therefore, the issue of increasing the efficiency of lime finishing coatings isrelevant. The paper aim is the modification of lime binders with specially synthesized calcium silicatehydrates (CSHs). To obtain the CSH filler, liquid sodium glass was used with a silicate moduleof 1.53–2.9 and a density of 1130–1663 kg/m3. Using differential thermal analysis (DTA), X-raydiffraction (XRD) patterns, synthesized calcium silicate hydrates, as well as dry plaster mixes, andfinishing coatings based on using them were studied. The regularities of the filler synthesis wereestablished depending on the temperature, density, and silicate modulus of liquid glass, the amountof the precipitant additive, the rate of its introduction, and the drying mode. As a result of processingthe obtained experimental data, a mathematical model was obtained for the composition “lime +CSH”. The phase composition of the filler was revealed, which is characterized by the presence ofcalcium silicate hydrates of the tobermorite group, a solid solution CSH (B) in the form of a weaklycrystallized gel, a solid solution of C–S–H (II), hydrohalites, and calcites. It was found that the use ofthe fillers into the lime compositions, obtained with the rapid introduction of CaCl2additive intowater glass during the synthesis of the filler, promotes the acceleration of the plastic strength gain oflime compositions. It was revealed that the lime composites with the CSH filler are characterizedby reduced shrinkage deformations up to 45%. The introduction of the CSH filler into the limecompositions increases the water resistance of the lime finishing layer by 36%. A technologicalscheme for the production of the lime dry plaster mixes has been developed; it can be introduced atexisting factories of building materials without significant re-equipment of production. |
