Abstract
In the present paper an integrated approach of a wide range of non-destructive tests (NDTs) was applied to study an archeological ruined building located in Rome, the so-called Temple of Minerva Medica. Applied NDTs focused on the monument properties and environmental conditions affecting its structural behavior (geometry, thermal and mechanical properties, microclimatic monitoring, ambient vibration response). Two surveys were performed in August and December 2016 combining 3D laser scanning, thermal infrared, air temperature and relative humidity acquisitions. In addition, high resolution digital images were acquired and processed by stereo-photogrammetry Structure from Motion (SfM) methodology, carried out for detailed reconstruction of the crack pattern of the monument. In order to obtain information on the integrity and consistency of the masonry, a sonic testing of each pillar was also performed. The integration of the above NDTs provided quite complete and comprehensive understanding of the structural behavior and state of the building, reducing the amount of invasive measurements further needed.
Highlights
In the context of restoration and conservation of archaeological heritage it is crucial to extract experimental data to characterise the physical and chemical properties of the materials that constitute historical objects
This kind of situations are faced regularly in big cities that are rich in archaeological assets, subjected to potential degradation phenomena caused by urban pollution, traffic vibrations and excavation works that might threaten their structural stability
This is the case of the monument studied in the present paper, the socalled Temple of Minerva Medica, which is subjected to remarkable urban traffic vibration and pollution [1]
Summary
In the context of restoration and conservation of archaeological heritage it is crucial to extract experimental data to characterise the physical and chemical properties of the materials that constitute historical objects. Providing as much as possible complete and accurate characterisation of historical structures is important in urban areas, which pose relevant problems in executing the restoration interventions This kind of situations are faced regularly in big cities that are rich in archaeological assets, subjected to potential degradation phenomena caused by urban pollution, traffic vibrations and excavation works that might threaten their structural stability. Such cases are very common in Italy, which presents the greatest concentration worldwide of historical constructions in urban areas, as documented by UNESCO World Heritage List, and in particular in the city Centre of Rome, where the needs of a modern European capital and its archaeological treasuries must coexist side by side. Sonic testing was performed to investigate the interior consistency of the pillars using the sonic transmission procedure [3]
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