Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/24529
Título: | Incorporation of titanium dioxide nanoparticles in mortars – influence of microstructure in the hardened state properties and photocatalytic activity |
Autor(es): | Lucas, S. S. Ferreira, V. M. Aguiar, J. L. Barroso de |
Palavras-chave: | Mortar Microstructure Mechanical properties Cement Cement (D) Mechanical Properties (C) Microstructure (B) Mortar (E) |
Data: | 2013 |
Editora: | Elsevier 1 |
Revista: | Cement and concrete research |
Resumo(s): | The environmental pollution in urban areas is one of the causes for poor indoor air quality in buildings, particularly in suburban areas. The development of photocatalytic construction materials can contribute to clean the air and improve sustainability levels. Previous studies have focused mainly in cement and concrete materials, disregarding the potential application in historic buildings. In this work, a photocatalytic additive (titanium dioxide) was added to mortars prepared with aerial lime, cement and gypsum binders. The main goal was to study the way that microstructural changes affect the photocatalytic efficiency. The photocatalytic activity was determined using a reactor developed to assess the degradation rate with a common urban pollutant, NOx. The laboratory results show that all the compositions tested exhibited high photocatalytic efficiency. It was demonstrated that photocatalytic mortars can be applied in new and old buildings, because the nanoadditives do not compromise the mortar hardened state properties. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/24529 |
DOI: | 10.1016/j.cemconres.2012.09.007 |
ISSN: | 0008-8846 |
Versão da editora: | http://ees.elsevier.com/CEMCON/defaul t.asp |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | C-TAC - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Cem_Con_Res_2013.pdf | Documento principal | 890,52 kB | Adobe PDF | Ver/Abrir |