Determination of the hygric properties of the heritage stone of the Cathedral of Cuenca through the water absorption by capillarity test
| Autor: | Oscar Merlo, Ángel Yustres, Virginia Cabrera, Enrique Torrero, R. López-Vizcaíno, Vicente Navarro, Miguel Ángel Ruiz |
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| Rok vydání: | 2020 |
| Předmět: |
Archeology
Absorption of water Porosidad Hygric characterization Materials Science (miscellaneous) Multiphysics Catedrales 02 engineering and technology Conservation 3301.12 Hidrodinámica 01 natural sciences Patologías - Construcción Capilaridad Geotechnical engineering Propiedades higrotérmicas Porosity Spectroscopy Ensayos (propiedades o materiales) 3312.08 Propiedades de Los Materiales Moisture storage 010401 analytical chemistry Piedra natural Absorción de agua Partially saturated Inverse problem 021001 nanoscience & nanotechnology Edificación religiosa Cuenca 0104 chemical sciences Transient flow Chemistry (miscellaneous) 3312.12 Ensayo de Materiales Capillarity Water absorption Heritage stone 0210 nano-technology Porous medium General Economics Econometrics and Finance Geology |
| Zdroj: | RUIdeRA. Repositorio Institucional de la UCLM instname RUIdeRA: Repositorio Institucional de la UCLM Universidad de Castilla-La Mancha Universidad Loyola Andalucía |
| DOI: | 10.1016/j.culher.2020.11.009 |
| Popis: | This work analyses the characterization of the hygric behaviour of a stone heritage material by solving the inverse problem using experimental data obtained from a water absorption by capillarity test (EN 15801). This common test is undemanding and requires relatively simple equipment as compared to other hygric characterization tests. For the solution of the direct problem of transient flow in partially saturated porous media, a computational module was developed in COMSOL Multiphysics that includes the conceptual model from the standard EN 15026. The selected material was the heritage stone of the Cuenca Cathedral, differentiating between two characteristic lithotypes: one with greater porosity and another that is more resistant, with more reduced porosity. Based on the experimental results, the intrinsic permeability and the parameters of the moisture storage function are estimated for the two lithotypes. Similarly, contrast tests were conducted to quantify the estimation error. A stochastic analysis was performed to assess if the estimated hygric parameters satisfactorily characterize the behaviour of the studied stone. |
| Databáze: | OpenAIRE |
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