Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain)
San Cristóbal’s is a porous sandstone that is present in masonry structures of numerous historical buildings located in the southwest of Spain (15th–18th centuries). In order to guarantee conservation and structural integrity, most of these structures have been assessed during the last two decades a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221450952300308X |
| _version_ | 1797798892092260352 |
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| author | Juan Ramón Baeza Víctor Compán Pablo Pachón Jaime Aguilar Margarita Cámara |
| author_facet | Juan Ramón Baeza Víctor Compán Pablo Pachón Jaime Aguilar Margarita Cámara |
| author_sort | Juan Ramón Baeza |
| collection | DOAJ |
| description | San Cristóbal’s is a porous sandstone that is present in masonry structures of numerous historical buildings located in the southwest of Spain (15th–18th centuries). In order to guarantee conservation and structural integrity, most of these structures have been assessed during the last two decades after they presented severe damages in locations affected by moisture. In this study, static and dynamic elastic modulus and uniaxial compressive strength of San Cristóbal’s stone are determined in the laboratory under dry and saturated states, as well as with a moisture content of 40%, to establish the influence of moisture on them. An experimental campaign was conducted on 16 samples of ancient stone, extracted from the core of structural walls and columns during a structural intervention. The results show how the moisture content directly affects the deformability of the stone, especially between dry and 40% moisture content states. The values of the elastic modulus, both static and dynamic, are reduced with average values of 16.98% and 22.85% respectively. The loss of uniaxial compressive strength between the dry and saturated states is established with a mean value of 29.82%. Additionally, empirical relationships between the studied mechanical properties have been developed, reaching coefficients of determination over 0.90 in most cases. |
| first_indexed | 2024-03-13T04:11:45Z |
| format | Article |
| id | doaj.art-ae16b4b2b49648eb973bbba150ce7c4b |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:11:45Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-ae16b4b2b49648eb973bbba150ce7c4b2023-06-21T06:54:37ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e02128Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain)Juan Ramón Baeza0Víctor Compán1Pablo Pachón2Jaime Aguilar3Margarita Cámara4Department of Architectural Construction II, University of Seville, Seville, SpainDepartment of Building Structures and Ground Engineering, University of Seville, Seville, Spain; Corresponding author.Department of Building Structures and Ground Engineering, University of Seville, Seville, SpainDepartment of Building Structures and Ground Engineering, University of Seville, Seville, SpainDepartment of Building Structures and Ground Engineering, University of Seville, Seville, SpainSan Cristóbal’s is a porous sandstone that is present in masonry structures of numerous historical buildings located in the southwest of Spain (15th–18th centuries). In order to guarantee conservation and structural integrity, most of these structures have been assessed during the last two decades after they presented severe damages in locations affected by moisture. In this study, static and dynamic elastic modulus and uniaxial compressive strength of San Cristóbal’s stone are determined in the laboratory under dry and saturated states, as well as with a moisture content of 40%, to establish the influence of moisture on them. An experimental campaign was conducted on 16 samples of ancient stone, extracted from the core of structural walls and columns during a structural intervention. The results show how the moisture content directly affects the deformability of the stone, especially between dry and 40% moisture content states. The values of the elastic modulus, both static and dynamic, are reduced with average values of 16.98% and 22.85% respectively. The loss of uniaxial compressive strength between the dry and saturated states is established with a mean value of 29.82%. Additionally, empirical relationships between the studied mechanical properties have been developed, reaching coefficients of determination over 0.90 in most cases.http://www.sciencedirect.com/science/article/pii/S221450952300308XSandstonesBuilding stoneMoisture contentMechanical propertiesStatic elastic modulusDynamic elastic modulus |
| spellingShingle | Juan Ramón Baeza Víctor Compán Pablo Pachón Jaime Aguilar Margarita Cámara Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain) Case Studies in Construction Materials Sandstones Building stone Moisture content Mechanical properties Static elastic modulus Dynamic elastic modulus |
| title | Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain) |
| title_full | Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain) |
| title_fullStr | Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain) |
| title_full_unstemmed | Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain) |
| title_short | Influence of moisture content on the mechanical properties of an ancient high-porosity building sandstone: San Cristóbal's stone (Andalusia, Spain) |
| title_sort | influence of moisture content on the mechanical properties of an ancient high porosity building sandstone san cristobal s stone andalusia spain |
| topic | Sandstones Building stone Moisture content Mechanical properties Static elastic modulus Dynamic elastic modulus |
| url | http://www.sciencedirect.com/science/article/pii/S221450952300308X |
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