| Título: | Durability improvement of ancient bricks by cementation of porous media |
| Autores: |
López Arce, Paula Benavente García, David García Guinea, Javier |
| Fecha: |
2012-12-10 2012-12-10 2005-06-08 |
| Publicador: | RUA Docencia |
| Fuente: |
 |
| Tipo: | info:eu-repo/semantics/article |
| Tema: |
Ancient bricks Cementation Porous media Durability Petrología y Geoquímica |
| Descripción: |
The physicomechanical properties of historic bricks in Toledo (Spain) that have undergone a time-dependent self-healing by natural weathering processes have been improved by porous infill with gypsum, ettringite, and, mainly, calcite. Both these bricks and their experimental replica bricks, made from the original calcareous clays fired at the appropriate historical temperatures (700°–900°C), have been analyzed by X-ray diffraction, optical and scanning electron microscopy, mercury intrusion porosimetry, and ultrasound velocities to compare pore structure and strength evolution by mineral cementation. The resultant microstructure and mineral fillings depend on the brick calcareous composition and firing temperature, the brick location environment, burial, indoor or outdoor walls, the lime-based joint mortars and coat plasters, and infiltration waters. Supported by the Plan Nacional de I+D CICYT 1FD, Grant no. 1997-0561 (Spain) and the CICYT-JCCM (agreement 2002–2004) (Spain). |
| Idioma: | Inglés |
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