Biodeterioration of Stone Surfaces: Lichens and Biofilms as by Larry L. St. Clair, Mark R. D. Seaward (auth.), Larry L.

By Larry L. St. Clair, Mark R. D. Seaward (auth.), Larry L. St.Clair, Mark R. D. Seaward (eds.)

This is a well timed quantity in view of the huge curiosity at present proven within the protection of our cultural background, and the huge and turning out to be literature at the topic. regrettably, the latter is to be present in a wide selection of released assets, a few geared toward a really particular readership and for this reason now not all that obtainable to people who desire this source. the current quantity attracts jointly a spectrum of biodeterioration paintings from the world over to supply an summary of the fabrics tested and the methodologies hired to clarify the character of the issues, in addition to an in depth and present bibliographical source on lichen biodeterioration. Biodeterioration of historic and culturally vital stone substrata is a posh challenge to be addressed. effortless, secure recommendations are easily now not on hand to be handled by way of except quite a lot of services. winning answer of this factor will necessarily require a multidisciplinary attempt, the place biologists paintings in shut cooperation with ecologists, geologists, geochemists, crystallographers, cultural estate conservators, archaeologists, anthropologists, and historians with a purpose to suggest the simplest administration scheme. the benefit of this method is clear: multidisciplinary administration groups with strong management can ask extra applicable questions whereas constructing even more considerate and educated decisions.

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Extra info for Biodeterioration of Stone Surfaces: Lichens and Biofilms as Weathering Agents of Rocks and Cultural Heritage

Sample text

Greenlbrown colonies Small tan Yeast-like fungus mucoid colonies Tan streaks Yeast-like fungus and large colonies Orange, Aureobasidium sp. green and purple hyphae Small tan Bacteria (cocci) round colonies Small tan Bacteria (cocci) round colonies Yellow Non-sporulating colonies with fungus ext. lYellow col wi hyphae Bacteria (rods) 32 Biodeterioration ofRock Surfaces T,ahIe 34M' lcroorgamsms Found on Sample # 'hS tructures Xunantumc . Structure Color Predominant Microorganisms Black Aspergillus (flavus/glaucus) Location 1 AreaB WallAA Penicillium sp.

Volume 2. Elsevier Publishing, New York. A. (1976) Control of moss, lichen and algae on stone. In: Conservation of Stone 1: Proceedings of the International Symposium, Bologna, June 19-21, 1975 (R. ): 225-231. Centro Per La Conservazione Della Sculpture All'aperto, Bologna, Italy. A. (1988) Control of microbial growths on stone and concrete. In Biodeterioration 7: 101-106. D. (1982) Evaluation of the durability of limestone masonry in historic buildings. In: Science and Technology in the Service of Conservation Science.

Consolidant curing in water-borne systems requires the evaporation of water and, where applicable, the coalescence of emulsion or dispersion-phase, polymer particles (Phillips 1992, personal communication). At high relative humidities, water-borne consolidants are stable but curing will not occur. For water-miscible systems, curing via polymerization or cross-linking of oligomers (Phillips 1982, 1995,) can occur in solution and polymer precipitation occurs when the molecular weight of the polymer exceeds a minimum value and its solubility decreases.

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