Low-cost sensors for determining the variation in interior moisture content in gypsum composite materials
| Autor: | Daniel Ferrández, Evangelina Atanes-Sánchez, Engerst Yedra, Carlos Morón, Pablo Saiz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Capacitive sensing
0211 other engineering and technologies 02 engineering and technology lcsh:Technology 021105 building & construction General Materials Science Composite material Water content Curing (chemistry) lcsh:QC120-168.85 Informática Química 3313.04 Material de Construcción 021001 nanoscience & nanotechnology Termografía infrarroja 3312.12 Ensayo de Materiales 0210 nano-technology lcsh:TK1-9971 3312.02 Aglomerantes Thermogravimetric analysis Materials science Gypsum Material de construcción engineering.material Article Escayola Humedad building materials Ensayo No Destructivo (END) Arduino lcsh:Microscopy 3312.09 Resistencia de Materiales lcsh:QH201-278.5 Propiedades mecánicas lcsh:T 3312.08 Propiedades de Los Materiales Absorción de agua Humidity Yeso Ingeniería Civil y de la Construcción lcsh:TA1-2040 Hardening (metallurgy) Measuring instrument engineering low-cost sensors lcsh:Descriptive and experimental mechanics non-destructive evaluation lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) gypsum and plaster |
| Zdroj: | Materials, ISSN 1996-1944, 2020-12, Vol. 13, No. 5831 Materials Volume 13 Issue 24 Archivo Digital UPM Universidad Politécnica de Madrid RIARTE Consejo General de la Arquitectura Técnica de España (CGATE) Materials, Vol 13, Iss 5831, p 5831 (2020) |
| Popis: | Non-destructive testing can be used to determine some of the most relevant physical properties of building materials. In this work, two low-cost measuring devices were developed capable of determining the variation in real-time of the percentage of humidity that is produced in the construction of gypsum and plaster during the hardening process. For this, an Arduino resistive sensor and a capacitive sensor of our design were used. The results show how it is possible to determine the variations in mixing water content during the seven days of curing established by the UNE-EN 13279-2 standard as well relate to the mechanical resistance of the test specimens with the same percentage of humidity. Additionally, the study was completed with the determination of the formation of the dihydrate compound linked to this setting process in the test specimens by conducting X-ray diffraction and thermogravimetric analysis tests at different ages of the samples. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. |
| Databáze: | OpenAIRE |
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