TITLE

Investigating morphological changes in treated vs. untreated stone building materials by x-ray micro-CT

AUTHOR(S)
Bugani, Simone; Camaiti, Mara; Morselli, Luciano; Van de Casteele, Elke; Janssens, Koen
PUB. DATE
June 2008
SOURCE
Analytical & Bioanalytical Chemistry;Jun2008, Vol. 391 Issue 4, p1343
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Calcareous stones have been largely used to build historical buildings. Among these, the calcarenites are usually characterized by a high content of calcite and a high open porosity, which make them very sensitive to the weathering caused by physical and chemical agents. In order to prevent their deterioration and to retard their decay, different protective products—mainly polymers—are applied on the stone artefact surfaces. In this work we apply the methodology tested in a preliminary study to investigate the morphological changes of the internal structure of a biocalcarenite (Lecce stone) by micro x-ray computed tomography (μ-CT). The porosity and other morphological parameters of the rock before and after the conservation treatment were calculated on a significant number of samples. The Student’s t test was applied for statistical comparison. The results reveal that the treatment with Paraloid B72 (PB 72) is homogenously distributed and causes small changes to the natural properties of the rock, whereas the application of a fluoroelastomer (NH) causes an appreciable decrease in porosity and variation in terms of wall thickness distribution, probably resulting from its inhomogeneous distribution. [Figure not available: see fulltext.]
ACCESSION #
32127804

 

Related Articles

  • Differences in the Properties of Arenaceous Marlstones from Different Quarries. Vejmelková, Eva; Čáchová, Monika; Konaková, Dana; Keppert, Martin; Reiterman, Pavel; Černý, Robert // Advanced Materials Research;2014, Vol. 982, p149 

    In this article two arenaceous marlstones quarried in Czech Republic were compared. Thanks to its easy workability and many deposits, arenaceous marlstone belonged to the main building materials in Roman and Gothic style. In the Czech Republic many interesting historical buildings from this...

  • Analysis of Building Stone of the Medieval Historical Building. Magdalena, BALINTOVA; Adriana, ESTOKOVA; Alena, SICAKOVA; Marian, HOLUB; Eva, SINGOVSZKA // Advanced Materials Research;2014, Issue 897, p305 

    The reconstruction of the historical buildings needs the replacement of the original and damaged materials using possible compatible materials that closely replicates the original ones in its appearance, chemical, physical and mineralogical properties, strength and durability. Thus, a complex...

  • Yellow Dream.  // Stone World;Apr2004, Vol. 21 Issue 4, p140 

    Presents a photograph of Marmi la Precisa's yellow dream stone. Unit volume weight; Water absorption rate; Porosity; Compressive strength.

  • Accessibility of water in heritage buildings materials. Pericleanu, Bucur Dan; Drăgoi, Mihaela // Ovidius University Annals, Series Civil Engineering;2012, Issue 14, p89 

    Accessibility of water itself is one of the processes causing damage to the building material by transporting soluble salts in water composition. In a sufficient quantity of water they dissolve and become soluble; otherwise, they crystallize in solid forms. On the other hand, crystallized salts...

  • The Angera stone: a challenging conservation issue in the polluted environment of Milan (Italy). Gulotta, D.; Bertoldi, M.; Bortolotto, S.; Fermo, P.; Piazzalunga, A.; Toniolo, L. // Environmental Earth Sciences;Jun2013, Vol. 69 Issue 4, p1085 

    The Angera stone is a sedimentary Triassic dolostone mainly composed of dolomite, which was widely employed in the Lombard architecture. In the present work, the study of the Angera stone of the 'Cortile del Richini', a masterpiece of the Lombard baroque, is discussed as an example of a...

  • Mechanical characterization of building stones through DT and NDT tests: research of correlations for the in situ analysis of ancient masonry. Vasanelli, Emilia; Sileo, Maria; Leucci, Giovanni; Calia, Angela; Aiello, Maria Antonietta; Micelli, Francesco // Key Engineering Materials;2014, Vol. 628, p85 

    In this paper, the use of ultrasonic pulse velocity (UPV) testing as a reliable technique to determine the compressive strength of a calcarenitic stone typical of Salento (South of Italy), known as Lecce Stone (LS) has been investigated. The scope of the experimental research is to establish...

  • CHAPTER 1: HISTORY OF BUILDING STONES IN LEEDS.  // Building Stone Heritage of Leeds;2006, p1 

    Chapter 1 of the book "The Building Stone Heritage of Leeds," Second Edition, by Francis G. Dimes and Murray Mitchell is presented. It explores the history and significant use of stone which enabled structures to survive in the long years. It discusses of how and where the stone came from that...

  • Right Under Your Feet. Wilson, Hilary // Ancient Egypt Magazine;Jun/Jul2009, Vol. 9 Issue 6, p56 

    The article focuses on the floorings of the buildings in Ancient Egypt. It notes that alabaster or calcite was the ancient Egyptian equivalent of marble and was a favorite flooring material. It adds that the best quality alabaster was from the quarries in Hatnub in the Eastern Desert. It...

  • Clay Today, & Tomorrow Too. Powell, Jane // Old House Journal;May/Jun2008, Vol. 36 Issue 3, p54 

    The article describes trends in the design, maintenance and repair of tile roofs on old houses. The biggest enemies of tile roofs are falling tree branches and humans and its main downside is steep upfront costs. The two basic types of clay-roofing tiles are rounded pan tiles and flat tiles. Pan...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics