Abstract
From the few instruments available for the onsite assessment of stone resistance in heritage contexts, not many choices exist for the routine evaluation and/or monitoring of the effects of conservation products, particularly consolidants. Among the few available field methods, some are minor destructive, excessively complex and/or costly; some were developed for the measuring of relatively significant increments in stone resistance, and are not necessarily sensitive to small strength variations, such as the ones promoted by the consolidants with a higher compatibility with very porous decayed limestones, e.g. biomineralisation or nano limes. To understand if Shore durometers could support the onsite assessment of subtle consolidation actions, a Shore A and a Shore D were used to measure the surface hardness of decayed limestones. While the Shore D scale seems better suited for limestones than that of Shore A, measurement precision proved to be overly contingent of surface morphology.
| Original language | English |
|---|---|
| Title of host publication | International Symposium Stone Consolidation in Cultural Heritage |
| Subtitle of host publication | full papers |
| Editors | José Delgado Rodrigues, Marluci Menezes |
| Place of Publication | Lisboa |
| Publisher | Laboratório Nacional de Engenharia Civil |
| Pages | 137-150 |
| Number of pages | 14 |
| Edition | Lisbon |
| Publication status | Published - 2022 |
| Externally published | Yes |
| Event | International Symposium Consolidation 2021: Stone Consolidation in Cultural Heritage - LNEC, Lisboa, Portugal Duration: 23 Mar 2022 → 25 Mar 2022 |
Conference
| Conference | International Symposium Consolidation 2021 |
|---|---|
| Abbreviated title | Consolidation 2021 |
| Country/Territory | Portugal |
| City | Lisboa |
| Period | 23/03/22 → 25/03/22 |
Keywords
- Soft limestones
- Subtle consolidation effects
- Onsite efficacy assessment
- Non-destructive testing
- Shore durometers