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Lookup NU author(s): Dr Magdalini TheodoridouORCiD
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Crushed brick is widely known as a pozzolanic additive for composite building materials. However, crushed brick - lime composites usually show high porosity, low compressive strength and slow reaction kinetics. In this paper, we present multidisciplinary research on the amelioration of crushed brick - lime composites, using nanosilica (SiO2) and nanotitania (TiO2) as additives at 3% w/w of binder. The results suggest that despite the dominant effect of the crushed brick, nanosilica significantly improves the early-age properties of the composites, while nanotitania potentially increases their resistance against salt crystallization. Supplementary FTIR, DTA/TG and SEM analyses confirm the better hydration and carbonation evolution of lime composites with crushed brick and nano-additives.
Author(s): Theodoridou M, Charalambous E, Maravelaki-Kalaitzaki P, Ioannou I
Publication type: Article
Publication status: Published
Journal: Cement and Concrete Composites
Year: 2016
Volume: 68
Pages: 77-87
Print publication date: 01/04/2016
Online publication date: 13/02/2016
Acceptance date: 10/02/2016
ISSN (print): 0958-9465
ISSN (electronic): 0958-9465
Publisher: Elsevier
URL: https://doi.org/10.1016/j.cemconcomp.2016.02.009
DOI: 10.1016/j.cemconcomp.2016.02.009
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