Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10216/92343
Autor(es): | Jose Ricardo Carneiro Paulo Joaquim Almeida Maria de Lurdes Lopes |
Título: | Some synergisms in the laboratory degradation of a polypropylene geotextile |
Data de publicação: | 2014 |
Resumo: | This paper studies the existence of synergisms between some degradation agents of geotextiles. For that purpose, a polypropylene geotextile (stabilised with Chimassorb 944) was exposed to some degradation tests: immersion in liquids (water, sulphuric and nitric acids, sodium hydroxide and metallic ion solutions), thermo-oxidation and artificial weathering. The geotextile was (1) exposed individually to each degradation agent (single exposure) and (2) exposed successively to some combinations of two agents (multiple exposures). Results showed that, in some cases, the combined action of two degradation agents was more damaging than the sum of the individual effects of each agent. The most relevant examples of this included: (1) immersion in sodium hydroxide and thermo-oxidation, (2) immersion in iron nitrate and thermo-oxidation and (3) immersion in cadmium or copper nitrate and artificial weathering. |
Assunto: | Ciências Tecnológicas, Engenharia civil Technological sciences, Civil engineering |
Áreas do conhecimento: | Ciências da engenharia e tecnologias::Engenharia civil Engineering and technology::Civil engineering |
URI: | https://hdl.handle.net/10216/92343 |
Tipo de Documento: | Artigo em Revista Científica Internacional |
Condições de Acesso: | restrictedAccess |
Aparece nas coleções: | FCUP - Artigo em Revista Científica Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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95351.pdf Restricted Access | 892.48 kB | Adobe PDF | Request a copy from the Author(s) |
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