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Tracing Local Production and Agricultural Trade: A Multi-Analytical Study of Ro...
Schiavon, Nicola; Buraca, Ida; Oliveira, Cesar; Bottaini, Carlo; Correia, Virgilio Hippolito; Mirao, José; Beltrame, MassimoAmphorae are a significant type of Roman pottery, serving as both transport containers and indicators of economic and technological practices across the Empire. Despite their importance in interpreting local economic dynamics in Roman Lusitania, the production origins, technological characteristics and functional roles of amphorae from Conímbriga in Portugal remain poorly understood. Previous research has focus...
Aging of Limestones and Silane–Siloxane-Based Protective Hydrophobics: The Impa...
Lisci, Carla; Sitzia, Fabio; Pires, Vera; Mirao, JoséStones are traditionally used in construction and architectural applications as building elements due to their aesthetic and technical/structural performance. Like other environmental factors (rain, humidity, moisture, salt presence, biological activity, etc.), heating–cooling and freeze–thaw cycles significantly threaten the longevity of stone materials. Hence, considering the socio-economic and cultural value...
Comparative multi-analytical study to forecast marble and limestone structural ...
Pires, Vera; Sitzia, Fabio; Lisci, Carla; Mirao, José; Lopes, LuisFor centuries, natural stone has adorned facades, evolving from thick construction elements to thin cladding applications due to advanced cutting technologies. However, durability issues, especially in thin marble cladding, have surfaced after approximately 50 years of installation, as seen in iconic structures like the Amoco Building and Finlandia Hall. This study focuses on characterizing Carrara and Ruivina ...
Hydrophobic Coatings’ Efficiency and Limestones’ Resistance to Salt Crystallisa...
Lisci, Carla; Galhano, Carlos; Simão, Joaquim; Pires, Vera; Sitzia, Fabio; Mirao, JoséStone deterioration is significantly influenced by the process of salt crystallisation. The expansion of salt crystals on a porous framework exerts pressure on the solid fraction, causing the stone to deteriorate when the internal pressure of salt surpasses the stone’s strength. Protective coatings are employed to effectively hinder or substantially reduce the penetration of water and saline solutions. This stu...
Physical-Mechanical Changes in Portuguese, Greek, and Italian Marbles Under Agi...
Pires, Vera; Sitzia, Fabio; Dias, Luis; Mirao, José; Neves, SamuelBowing, a significant form of decay, poses a crucial challenge in the preservation of historical and contemporary structures, necessitating comprehensive study and analysis. This research focuses on the mechanical alterations induced by aging cycles of temperature and moisture on three distinct marbles—Portuguese, Greek, and Italian— emphasizing their susceptibility to bowing-associated effects. The prevalence ...
Trentepohlia Algae as a Diagnostic Tool for Historic Mediterranean – style Houses
Sitzia, Fabio; Pires, Vera; Lisci, Carla; Neves, Samuel; Mirao, JoséTrentepohlia is a genus of filamentous chlorophytes green algae commonly found in association with fungi and bacteria on building envelopes. Their colonies have a characteristic red colouration which results from the production of b-carotene and hematochrome pigments. They are commonly present on walls, roofs and other external building structures and thrive in humid and shaded environments where sufficient moi...
The particle‐size distribution of concrete and mortar aggregates by image analysis
Sitzia, Fabio; Beltrame, Massimo; Mirao, JoséParticle-size analysis on ancient mortars and concretes aggregate is today a common practice in Cultural Heritage and civil engineering. Normally, a particle-size distribution of mortar aggregates on in situ materials is carried out using sieves, fol- lowing the dissolution of the carbonate binder. This technique needs about 200 g of material per sample and produces a large volume of liquid wastes. Sampling is ...
Advances Technologies for natural stone| Inovstone 4.0 important results from a...
Pires, Vera; Mirao, José; Sitzia, Fabio; Lisci, Carla; Duarte, José; Dias, Luis; Alves, Tiago; Lopes, Luis; Martins, RubenThe natural stone as a building material has been revealed to have much lower life cycle costs than other materials as concrete, glass and steel. For this reason, it has a positive impact on the environment. However, several incidents with different pathologies on distinct lithologies has led to an increase in maintenance costs. The lack of knowledge on a stone performance over time and the frequent absence of ...
Beyond Technology: Pottery Reveals Translocal Social Relations at a Bell Beaker...
Schiavon, Nicola; Gaspar, Adam; Petrik, Jan; Fojtik, Pavel; Tsoupra, Anna; MIR-MAKHAMAD, Basira; Cardoso, Ana Margarida; Mirao, José; Beltrame, MassimoThe Bell Beaker site near Brodek u Prostejova (Czechia) has yielded remains of a large timber construction accompanied by four symmetrical ritual deposits with numerous artefacts, including more than fifty ceramic vessels. Their decoration consists of incised patterns, in nineteen cases with preserved white inlaid incrustations. To investigate the social relations at this extraordinary site, a multi-analytical ...
Microorganisms and Moonmilk in the non-ornated caves from the Vézère Valley (Do...
Bhattacharya, Sriradha; Caldeira, A. Teresa; Chapoulie, Rémy; Ferrier, Catherine; Mirao, José; Lacanette, Delphine; Bassel, Léna; Salvador, CátiaMicroorganisms inhabit all possible environments including hypogean environments. Cave are the best examples of a glimpse into the subsurface world and into human past through its art work. Microbes are often harmful for cultural assets (eg, paleolithic paintings), because they are related to constructive (mineral precipitation) and destructive (substrate dissolution) processes affecting different substrates (h...