Search results for " Materiali"
showing 10 items of 710 documents
Il degrado degli stucchi serpottiano a Palermo in relazione alle condizioni ambientali di conservazione
2009
This work is part of a demanding project, called “Progetto Serpotta”, performed since 2000 in cooperation with Soprintendenza Beni Culturali of Palermo. Aim of the project is the restoration of the unique stucco's artworks moulded by Giacomo Serpotta and his co-workers end of 17th -beginning of 18th century. This paper is focused on the problem of salt efflorescences, that are widely present in all of the churches and oratories restored in the framework of “Progetto Serpotta”. Particular attention is given to the relationship between the constitutive matter of the stuccoes, as analysed by means of both X ray diffractometry and optical microscopy, and the salts composition, as analysed by me…
The skill in materials selection and processing at the Serpotta's studio during the baroque period in Palermo
2010
Preliminary Evaluation of Plasmix Compound from Plastics Packaging Waste for Reuse in Bituminous Pavements
2021
Finding an appropriate technical solution for reusing waste plastics is crucial for creating a circular plastic economy. Although mechanical recycling is the best option for recycling post-consumer plastics, some heterogeneous mixed plastics cannot be recycled to produce secondary material due to their very low properties. In this case, alternative routes should be considered in order to limit their disposal as much as possible. Therefore, in order to solve the environmental problems in the landfills of plastic waste recycling, and to improve the mechanical performance of bitumen for road pavement, the reuse of these post-consumer plastic wastes are preliminarily evaluated for the modificat…
Workshop Ricioc Made in Sicily/Nuove forme per il cioccolato di Modica.
2008
I MATERIALI LAPIDEI NELLA TRADIZIONE COSTRUTTIVA SICILIANA: LE PIETRE DELLA PIANA DI BAGHERIA
2007
Il contributo descrive gli studi effettuati sulle cave storiche nella piana di Bagheria
Effect of NaOH Treatment on Properties of Phoenix Sp. Fiber
2016
The aim of this paper is to investigate the effect of an alkali treatment on physical, chemical, mechanical, and morphological properties of Phoenix Sp. fibers. The use of natural fibers as reinforcement in polymer composites requires a deep investigation to understand their behavior and which treatment is more appropriate to improve the quality of the untreated material. For this reason, fibers were extracted from the petioles of the Phoenix Sp. plant and they were treated with NaOH solution in different weight concentrations (5%, 10%, and 15%). The mechanical behavior was investigated through tensile test on single fiber at different gauge length (20 mm, 30 mm, 40 mm, 50 mm, and 60 mm). C…
Lògica materialista de Galvano della Volpe [Pròleg]
2004
Enfront del vell marxisme antropocèntric, i al capdavall escatològic, que circulava per les Facultats del país a principi de la dècada dels seixanta, i del qual es nodrien tants estudiants d'aleshores, guanyen terreny aquests darrers anys uns altres corrents marxistes, no tan recents com hom podria pensar, i que marxen per altres dreceres: a la preocupació humanista oposen la direcció epistemològica de llurs reflexions.
Nuove forme ed espressioni dell'architettura in terra cruda
2008
Acciaio, vetro, calcestruzzo, materie plastiche di ogni tipo sono considerati oggi, nel mondo industrializzato, materiali essenziali per la costruzione delle cosiddette “case-astronavi” realizzate nelle aree più disparate della terra, in modo selvaggio ed indiscriminato, prive di qualsiasi relazione con il contesto; edifici energivori, pressoché simili tra loro, che affidano il loro funzionamento ed il raggiungimento delle condizioni di benessere all’interno degli ambienti ad impianti tecnici sempre più sofisticati e sempre più dannosi per l’ecosistema, con ripercussioni negative sulla qualità della vita. Immagine di uno status symbol al quale oggi è sempre più difficile rinunciare. Consegu…
"Ci sono più cose in cielo e in terra..." Due metodologie diverse per investigare il passato: il Castello Nuovo di Sciacca tra storia e archeologia
2012
La storia di Sciacca e del Castello Nuovo, ricostruita sulle fonti documentarie, riceve nuova luce dalle indagini condotte dalla Soprintendenza di Agrigento nel butto del castello, che ha restituito importanti testimonianze di cultura materiale. Il contributo, attraverso la lettura sinottica dei dati archeologici ed archivistici, offre un quadro della vita quotidiana al castello tra il XIV ed il XVI secolo, quando Sciacca con il suo caricatore riveste un ruolo di primo piano nel commercio mediterraneo. The history of Sciacca and Castello Nuovo documented by archival sources and further enriched by the researches conducted by Soprintendenza of Agrigento is in the dump of the castle, which ha…
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…