RT journal article
T1 Evaluation of stone durability using a combination of ultrasound, mechanical and accelerated aging tests
A1 Molina Piernas, Eduardo
A1 Cultrone, Giuseppe
A1 Sebastián, Eduardo
A1 Alonso, Francisco Javier
A2 Ciencias de la Tierra
K1 Durability
K1 Sedimentary stone
K1 ultrasound velocity
K1 compressive strength
K1 decay test
K1 pore system
AB 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.
PB Oxford Academy
SN 1742-2132
YR 2013
FD 2013
LK http://hdl.handle.net/10498/34927
UL http://hdl.handle.net/10498/34927
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026