Search results for "Plaster"
showing 9 items of 49 documents
Città, intonaci, colore. Problematiche inerenti al restauro degli intonaci storici
2012
Con il trascorrere del tempo ogni luogo rende concreta la propria identità visiva e lo spazio percepito come luogo partecipa alla determinazione di relazioni affettive con la gente. Ma cosa accade se le caratteristiche volumetriche e materiche che definiscono il carattere dei luoghi sono all’improvviso alterate? Quali conseguenze si avvertono se il processo di globalizzazione in atto comporta la diffusione in ogni luogo degli stessi materiali per l’architettura? E quali effetti si determinano se tale processo investe i centri storici? Il volume vuole ripercorrere le dinamiche del recupero dei centri storici in Italia negli ultimi quarant’anni, che stanno completamente alterando la scena urb…
« Dans le goût de l’antique »
2021
L’interet pour le patrimoine universitaire des universites de Besancon et de Dijon nous a recemment conduits a entreprendre un programme de recherche sur le patrimoine pedagogique lie a l’enseignement de l’histoire de l’art et de l’archeologie a l’echelle de notre region Bourgogne - Franche-Comte (voir ici : https://ista.univ-fcomte.fr/projet-scientifique/projet-moulages). Dans l’etude des photographies argentiques diffusees par les maisons parisiennes (telle Giraudon), des plaques photographiques, des ouvrages de litterature specialisee acquis par nos bibliotheques et des collections de moulages en plâtre constituees a la fin du xixe siecle, nous avons mis en relation les collections des e…
VALIDITY AND RELIABILITY OF MEASUREMENTS OF THE PARAMETERS OF SMILE AESTHETICS: A COMPARISON BETWEEN DIGITAL AND PLASTER MODELS
2020
This study aims to evaluate the validity and reliability of the TRIOS3 Color intraoral scanner (3Shape A/S, Copenhagen, Denmark) and its associated Ortho Analyzer™ software in measuring parameters of smile aesthetics compared with measurements on plaster casts. The study sample comprised plaster casts and digital models obtained from 30 subjects. Height (H), mesiodistal diameter (MDD) and connecting space (CS) of the anterior teeth were measured with a digital calliper on the plaster models and with the orthodontic software on the digital models. Validity was assessed using a 2-tailed paired t-test; the reliability of measurements for intra-examiner was evaluated with the Intra-class Correl…
Senso e prospettive di un incontro
2020
Nella postfazione si evidenzia l'importanza di valorizzare le collezioni universitarie sia per i loro numerosi elementi di interesse, sia per gli input che forniscono per ulteriori iniziative e progressi di conoscenza, secondo le parole d'ordine di "fare rete" e "sistematizzare" i vari asset, specializzazioni, conoscenza e utenti In the afterword the importance of enhancing university collections is highlighted both for their numerous elements of interest, and for the inputs they provide for further initiatives and knowledge progress, according to the watchwords of "networking" and "systematizing" the various assets , specialisms, knowledge and users
Una memoria fragile? Collezioni di calchi in gesso e il loro ruolo di eredità storica tra passato e presente
2020
A collection of papers about the recovery and the new arrangement of the plaster casts of ancient sculpture at the University of Palermo in Italy and the University of Leipzig in Germany
Zweifamilienhaus/Double Family House in Marina di Caronia
2006
L’articolo descrive un’opera, di cui è progettista l’autore, costruita lungo la costa tirrenica siciliana. Inserito nel catalogo del Premio Internazionale di Architettura ECOLA (edizione 2006) l’articolo rappresenta una significativo contributo al tema del Premio orientato alla documentazione delle problematiche costruttive dell’architettura in Europa.
The production cycle of lime based plasters in the Late Roman settlement of Scauri, Island of Pantelleria (Italy)
2016
This paper deals with the archaeometric study and analysis of lime based plasters recently found in the archaeological settlement of Scauri, located in the homonymous bay at the island of Pantelleria (central Mediterranean, Strait of Sicily). The Bay of Scauri is sited in the south-west part of the island. It can be considered a natural harbour overlooking the coast of Cape Bon in Tunisia. Since the 1999, the archaeological importance of place was reconsidered thanks to the recovering of huge remains of a Late Roman settlement dating back to the 4th-5th century AD. A production quarter, a residential area, a necropolis and a religious area were brought to light. The economy of the settlemen…
A comparative study of different formulations of poultices for soluble salts removal from experimental plasters
2017
Soluble salts extractive capability of some commercial materials currently used in plaster restoration sector (ArbocelTM plus sepiolite; ArbocelTM, sepiolite and sand; Westox-Cocoon®) were tested in the present study, with the aim to evaluate their efficiency, their compatibility with the substrates as well as in terms of costs and duration of intervention. The three poultice products were first characterized in terms of porosimetric distribution. The desalination tests have been performed on samples of plaster specially formulated and made at the laboratory. Experimental specimens were then brought into contact with a solution of Na2SO4 0.3 M. The efficiency rating of these different types…
Novel green bio-composite geopolymeric thermo-plasters for innovative building applications: upcycling spent coffee ground
2022
This study proposes the reuse of spent coffee ground and biomass fly ash in the development of green geopolymeric thermo-plastering for innovative building applications. The former waste is the major residue of the brewing process, that is usually used as fertilisers or disposed of in landfill with extreme harmfulness for the natural environment. The latter is an industrial waste generated during the Kraft paper-pulp process, that is usually landfilled. The mortar is produced with a combination of metakaolin (30 wt.%) and biomass fly ash (70 wt.%), and natural siliceous sand filled with spent coffee ground (up to 17.5 wt.%). The high amount of reused waste makes the material an optimum cand…