The present overview on salt-induced deterioration of inorganic porous materials focuses those topics considered the most relevant for understanding this phenomenon. These are movement both water/moisture and salts within pore system; influence presence in moisture absorption; effect simultaneous more than one salt; salt distribution masonry; mechanisms; weathering patterns. Of latter, ubiquitous powdering scaling, they have been found to occur stone types. However, mechanism that induces...

The present overview on salt-induced deterioration of inorganic porous materials focuses those topics considered the most relevant for understanding this phenomenon. These are movement both water/moisture and salts within pore system; influence presence in moisture absorption; effect simultaneous more than one salt; salt distribution masonry; mechanisms; weathering patterns. Of latter, ubiquitous powdering scaling, they have been found to occur stone types. However, mechanism that induces...

Abstract One of the key deterioration factors for porous inorganic building materials are soluble salts. To be able to remediate or mitigate this problem it is fundamental understand principal processes governing their behavior. While actual mechanisms involved in these still under study, can mitigated remediated by long practical experience gained field. The paper aims provide an overview basic principles that rule interaction salts with material. Understanding will allow development...

The present volume brings together the papers and posters presented at "Cleaning 2010 International—New Insights into Cleaning of Paintings" conference that was held Universidad Politécnica de Valencia in Spain, collaboration with Smithsonian's Museum Conservation Institute. This first major international on this topic two decades. 20 19 extended abstracts are included publication, grouped four main categories: Ethics, Aesthetics, Training, Documentation; Traditional Media: Egg Tempera Oil;...

Ca(OH)2 particles with submicrometric dimensions (nanolimes) represent one of the most promising consolidants for conservation calcareous substrates. The nanolime treatment is similar to limewater technique, traditionally used its durability and high compatibility matrix but requiring a large number applications not always yielding highly effective consolidation. Since 2001, alcohol-based dispersions nanoparticles have been synthesised overcome limitations treatment. Nanolimes present same...

Abstract Water is one of the key deterioration factors for porous building materials and has capability enhancing deleterious effect other such as air pollution biocolonization, among others. The focus paper interaction water with inorganic materials: how does enter pore system, it leave it? How presence clays or soluble salts in affect these mechanisms? Pairwise examples are provided to illustrate varying behavior different materials. Also addressed importance size distribution on its...

Preface. Introduction. Mechanisms and Diagnostics. Structural Systems. Vertical Closure Horizontal The Active Epilogue. Glossary. Index.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAcid rain effects on stone monumentsA. Elena Charola Cite this: J. Chem. Educ. 1987, 64, 5, 436Publication Date (Print):May 1, 1987Publication History Received3 August 2009Published online1 May 1987Published inissue 1 1987https://doi.org/10.1021/ed064p436RIGHTS & PERMISSIONSArticle Views1000Altmetric-Citations28LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML)...

The Smithsonian Museum Conservation Institute Workshop on Biocolonization of Stone was the second workshop in a series and dedicated to research removal control biocolonization stone objects. Twelve presentations were made, ended with roundtable discussion open 71 attendees. goal provide forum for biologists, material scientists, conservators interested biodeterioration. Seven papers presented, ranging from microbiological laboratory studies combination on-site testing evaluation World...

For almost 1500 years, many ancient Chinese mortars have remained unaltered despite exposure to atmospheric agents. The main reason for this long-term durability is the addition of sticky rice water standard mortar ingredients (lime and sand) following traditional recipes. In recent these been methodically studied leading conclusion that amylopectin, a polysaccharide in rice, plays crucial role regulating calcite crystals growth, creating denser microstructure providing with hydrophobic...

The marble of the New York Public Library was found to be in a fairly good state conservation except for more exposed elements, such as quoins and many delicately carved elements that decorate building. This paper focuses on treatment developed areas showed significant sugaring. For this purpose, laboratory examinations analyses were carried out preliminary tests made with silicate ester-based consolidants. These, however, did not perform well test studies therefore an approach using...

Stylus profilometry, reflected-light image analysis and visual/tactile evaluation were tested as techniques for assessing roughness of abrasive-blasted stone. Measurement microdrop water absorption time was also a complementary technique. Instrumental showed significant shortcomings when measuring surfaces similar to most weathered stone, well flame-finished comparable tooled Tactile comparison wasfound be more practical cost-effective On historic masonry structures, however, soiling uneven...