Authors
Carlos Rodriguez; Fernando Fernandez; Roberto Rodriguez; Marina Sanchez; Pablo Gómez; Felipe Martí; Miriam Hernández; Isabel Miñano; Carlos Parra; Francisco Benito; Irene Beleña. MDPI
Abstract
The study assesses recycled diatomaceous earth (from wine, beer, and oil filtration) as a supplementary cementitious material in mortars. Mechanical strength, durability, and pozzolanic activity were evaluated at 7, 28, and 90 days. Uncalcined diatoms from wine/oil yielded lower strength than natural diatomite, while calcination at 500 °C markedly improved performance; beer diatoms showed the weakest behavior due to organic matter. Quicklime did not activate uncalcined diatoms, but 500 °C calcination enabled long-term pozzolanic reactivity, indicating that calcined recycled diatoms can function as sustainable cementitious additions.
Type of publication
Journal paper.
Publisher
Crystals (MDPI), Vol. 14, Issue 12, Article 1030; published 28 November 2024.
DOI
10.3390/cryst14121030.
