Caracterización del sistema poroso y de su influencia en el deterioro por cristalización de sales en calizas y dolomías explotadas en Abanto (Zaragoza, España)

Buj, O.; López, Pedro Lucha; Gisbert, J.

doi:10.3989/mc.2010.50108

Cited by 9 publications

(2 citation statements)

References 12 publications

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“…Accelerated aging tests are particularly important in the study of stone building materials, because despite being destructive tests, in a relatively short space of time they enable researchers to estimate the level of damage suffered by the materials when exposed to decay agents in the laboratory (Steiger 2005, Espinosa et al 2008, Buj et al 2010, Ludovico-Marques and Chastre, 2012. The results of these tests give us a better, more complete picture of how the different factors (ice, salts, air pollution, etc) affect the decay of the materials under real conditions (Laycock 2002, Grossi et al 2007.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of stone durability using a combination of ultrasound, mechanical and accelerated aging tests

et al. 2013

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The durability of a rock when exposed to decay agents is an important criterion when assessing its quality as a building material. Our study focuses on six varieties of natural stone (two limestones, one dolostone, one travertine and two sandstones) that are widely used in both new and historical buildings. In order to assess their quality, we measured and characterized their dynamic elastic properties using ultrasounds, we measured their compressive strength using the uniaxial compression test and we evaluated their durability by means of accelerated aging tests (freeze-thaw and salt crystallization). In order to get a full picture of the decay suffered by the different stones, we determined the composition and amount of the clay fraction of the six stones. We also observed small fragments subjected to the salt crystallization test under an environmental scanning electron microscope to study any textural change and measured the changes of colour on the surface with a spectrophotometer. Finally, we analysed the pore system of the stones before and after their deterioration using mercury injection porosimetry. We then compared the results for the different stones and found that dolostone obtained the best results, while the two limestones proved to be the least durable and had the lowest compressive strength.

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Section: Introductionmentioning

confidence: 99%

Evaluation of stone durability using a combination of ultrasound, mechanical and accelerated aging tests

et al. 2013

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“…The consequences of the accumulation of salt can block pores and capillaries through which water evaporates, pushing the wet front or tide mark upwards and so increasing moisture levels (18), reducing the capillary absorption coefficient (19). Moreover, the constant dissolution and recrystallisation of salts, as caused by changes in humidity and temperature, can damage a building material.…”

Section: Theoreticalmentioning

confidence: 99%

Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography

Lerma¹,

Más²,

Gil³

et al. 2013

Mater. construcc.

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Study of historic buildings requires a pathology analysis of the construction materials used in order to define their conservation state. Usually we can find capillary moisture, salt crystallization or density differences by deterioration. Sometimes this issue is carried out by destructive testing which determine materials' physical and chemical characteristics. However, they are unfavorable regarding the building's integrity, and they are sometimes difficult to implement. This paper presents a technique using infrared thermography to analyze the existing pathology and has the advantage of being able to diagnose inaccessible areas in buildings. The results obtained by this technique have been compared with those obtained in the laboratory, in order to validate this study and thus to extrapolate the methodology to other buildings and materials. RESUMEN: Patología de materiales de construcción en edificios históricos. Relación entre ensayos de laboratorio y termografía infrarroja.El estudio de edificios históricos requiere un análisis de la patología de los materiales de construcción empleados para poder definir su estado de conservación. Habitualmente nos encontramos con humedades por capilaridad, cristalización de sales o diferencias de densidad por deterioro. En ocasiones esto se lleva a cabo mediante ensayos destructivos que nos determinan las características físicas y químicas de los materiales, pero que resultan desfavorables respecto a la integridad del edificio, y en ocasiones resulta complejo llevarlos a cabo. Este trabajo presenta una técnica para analizar la patología existente mediante el empleo de termografía infrarroja con la ventaja de poder diagnosticar zonas de difícil acceso en los edificios. Para validar este estudio se han comparado los resultados obtenidos mediante esta técnica con los alcanzados en el laboratorio. De esta forma podemos extrapolar la metodología empleada a otros edificios y materiales.

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Assessment of the Effects of Freeze–Thaw and Salt Crystallization Ageing Tests on Anahita Temple Stone, Kangavar, West of Iran

2016

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Caracterización del sistema poroso y de su influencia en el deterioro por cristalización de sales en calizas y dolomías explotadas en Abanto (Zaragoza, España)

Cited by 9 publications

References 12 publications

Evaluation of stone durability using a combination of ultrasound, mechanical and accelerated aging tests

Evaluation of stone durability using a combination of ultrasound, mechanical and accelerated aging tests

Pathology of Building Materials in Historic Buildings. Relationship Between Laboratory Testing and Infrared Thermography

Assessment of the Effects of Freeze–Thaw and Salt Crystallization Ageing Tests on Anahita Temple Stone, Kangavar, West of Iran

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