Szczegóły publikacji
Opis bibliograficzny
The influence of selected grain size fractions of coal fly ash on properties of clay-cement mortars used for the flood levees construction / Jurij DELIHOWSKI, Piotr IZAK, Łukasz WÓJCIK, Agata STEMPKOWSKA, Marcin Jarosz // Scientific Reports [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2045-2322. — 2024 — vol. 14 art. no. 21485, s. 1–16. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 14–16, Abstr. — Publikacja dostępna online od: 2024-09-14
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 155366 |
|---|---|
| Data dodania do BaDAP | 2024-09-25 |
| Tekst źródłowy | URL |
| DOI | 10.1038/s41598-024-72315-0 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Scientific Reports |
Abstract
This study examines the influence of different grain size fractions of coal fly ash on the properties of clay-cement mortars used in flood levee construction. Dry aerodynamic separation and mesh sieving were used to obtain ultrafine, fine, and medium fractions of high-calcium and silica fly ash. The experimental results reveal that the rheological properties of fresh mortars are significantly influenced by these fractions. High-calcium fly ash mortars exhibit high reactivity and rapid increase in viscosity, with finer fractions showing the highest reactivity. Silica ashes show increased reactivity in the later stages of suspension hardening. Their spherical shape contributes to reducing internal friction during flow in initial technological operations. Furthermore, the compressive strength of hardened mortars improves as the particle size decreases for both ashes, resulting in a dense and uniform microstructure. The separation and fractionation of fly ashes contribute to the obtaining of fractions that influence the parameters of clay-cement suspension application on different scales. The results show the potential benefits of ash separation, which can bring advantages in terms of economic viability, engineering performance, and ecological sustainability.
