Use of anthocyanin solutions in portland cement concrete to identify carbonation depth
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http://hdl.handle.net/10045/108378
Title: | Use of anthocyanin solutions in portland cement concrete to identify carbonation depth |
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Authors: | Chinchón Payá, Servando | Andrade, Carmen | Chinchón Yepes, Servando |
Center, Department or Service: | Universidad de Alicante. Departamento de Construcciones Arquitectónicas |
Keywords: | Concrete | Carbonation | Anthocyanins | PH indicators |
Knowledge Area: | Construcciones Arquitectónicas |
Issue Date: | 22-Jul-2020 |
Publisher: | Springer Nature |
Citation: | Materials and Structures. 2020, 53:101. https://doi.org/10.1617/s11527-020-01518-4 |
Abstract: | A method is proposed which comprises placing a portland cement concrete or mortar sample with a harmless solution, based on a variety of anthocyanins, which acts as an indicator yielding a color which is visibly different in zones where an alkaline reserve exists (pH ~ 12) (green) from that observed in carbonated areas (pH ≤ 9) (blue). We firstly experimented with various solutions containing anthocyanins extracted from flowers and fruits, after which food colors commercialized in the European Union were utilized seeking to prepare a reproducible method. The tested products are three food colors coming from grape, black carrot and red cabbage obtained by means of extraction and later dehydrated by spray dying. The solutions which seem most appropriate to us contain 2.5% of color dissolved in a liquid where alcohol and water are mixed at a 70/30 ratio. |
URI: | http://hdl.handle.net/10045/108378 |
ISSN: | 1359-5997 (Print) | 1871-6873 (Online) |
DOI: | 10.1617/s11527-020-01518-4 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © RILEM 2020 |
Peer Review: | si |
Publisher version: | https://doi.org/10.1617/s11527-020-01518-4 |
Appears in Collections: | Personal Investigador sin Adscripción a Grupo |
Files in This Item:
File | Description | Size | Format | |
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Chinchon-Paya_etal_2020_MaterStruct_final.pdf | Versión final (acceso restringido) | 1,21 MB | Adobe PDF | Open Request a copy |
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