Influence of chloride contamination on carbonation of cement-based materials
| Autor: | Gibson Rocha Meira, Aires Camões, Maria Teresa Pessoa de Amorim, Raphaele Lira Meireles Castro Malheiro |
|---|---|
| Přispěvatelé: | Universidade do Minho |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Carbonation 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Accelerated tests Chloride Durability 0201 civil engineering 021105 building & construction medicine General Materials Science Civil and Structural Engineering Cement Science & Technology digestive oral and skin physiology Metallurgy Chloride test Humidity Cement-based materials Building and Construction Contamination Combined action 13. Climate action medicine.drug |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2021.123756 |
| Popis: | An experimental investigation was conducted to understand the effect of the presence of chloride on the carbonation front. Microstructural analysis was conducted to verify the carbonation development in material previously contaminated by chlorides. Accelerated tests were combined to understand how the presence of chlorides influences carbonation front and how chloride test method influences in these results. The results indicate that the presence of chloride decreases the carbonation front in cementbased materials. This behaviour is related to the pore refinement and humidity retention caused by chloride. The impact on carbonation reduction occurs at different levels, according to the testing method used. This work was supported by the Foundation for Science and Technology, FCT (grant SFRH/BD/90134/2012). |
| Databáze: | OpenAIRE |
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