Alkoxysilanes and the Consolidation of Stone


Book Description

Stone is one of the oldest building materials, and its conservation ranks as one of the most challenging in the field. The use of alkoxysilanes in the conservation of stone can be traced as far back as 1861, when A. W. von Hoffman suggested their use for the deteriorating limestone on the Houses of Parliament in London. Alkoxysilane-based formulations have since become the material of choice for the consolidation of stone outdoors.^l This volume, the first to cover comprehensively alkoxysilanes in stone consolidation, synthesizes the subject's vast and extensive literature, which ranges from production of alkoxysilanes in the nineteenth century to the extensive contributions from sol-gel science in the 1980s and 90s. Included are a historical overview, an annotated bibliography, and discussions of the following topics: the chemistry and physics of alkoxysilanes and their gels; the influence of stone type; commercial and noncommercial formulations; practice; lab and field evaluation of service life; and recent developments. This book is designed for conservators, scientists, and preservation architects in the field of stone conservation and will also serve as an indispensable introduction to the subject for students of art conservation and historic preservation.




The Structural Conservation of Panel Paintings


Book Description

This volume presents the proceedings of an international symposium organized by the Getty Conservation Institute and the J. Paul Getty Museum. The first conference of its kind in twenty years, the symposium assembled an international group of conservators of painted panels, and gave them the opportunity to discuss their philosophies and share their work methods. Illustrated in color throughout, this volume presents thirty-one papers grouped into four topic areas: Wood Science and Technology, History of Panel-Manufacturing Techniques, History of the Structural Conservation of Panel Paintings, and Current Approaches to the Structural Conservation of Panel Paintings.







Twentieth-Century Building Materials


Book Description

Over the concluding decades of the twentieth century, the historic preservation community increasingly turned its attention to modern buildings, including bungalows from the 1930s, gas stations and diners from the 1940s, and office buildings and architectural homes from the 1950s. Conservation efforts, however, were often hampered by a lack of technical information about the products used in these structures, and to fill this gap Twentieth-Century Building Materials was developed by the U.S. Department of the Interior’s National Park Service and first published in 1995. Now, this invaluable guide is being reissued—with a new preface by the book’s original editor. With more than 250 illustrations, including a full-color photographic essay, the volume remains an indispensable reference on the history and conservation of modern building materials. Thirty-seven essays written by leading experts offer insights into the history, manufacturing processes, and uses of a wide range of materials, including glass block, aluminum, plywood, linoleum, and gypsum board. Readers will also learn about how these materials perform over time and discover valuable conservation and repair techniques. Bibliographies and sources for further research complete the volume. The book is intended for a wide range of conservation professionals including architects, engineers, conservators, and material scientists engaged in the conservation of modern buildings, as well as scholars in related disciplines.




Cohesive Sediments


Book Description

There is an alarming tendency today to assume that something calculated by a computer must be correct, yet the phrase 'garbage in, garbage out' (gigo) is possibly nowhere more (generally) appropriate than in computer modelling of cohesive sediment behaviour. The behaviour of 'mud' is highly complex and one only needs to look at a sample under a microscope to see why - the variety of particle shapes, not to mention the presence of living organisms, make it a substance with properties virtually unique to its situation which even change with time. For many years most researchers tended to avoid it, preferring to study sand and gravel, but a dedicated few tackled it and found a forum for discussing their work in the first Cohesive Sediments Workshop in Florida in 1980. The workshop met about every three years resulting in publication of some of the most definitive papers on the subject. By 1994 it was time to recognise the extensive research being carried on in Europe by holding the workshop in that region. Intercoh '94 (the 4th Nearshore and Estuarine Cohesive Sediment Transport Conference) drew together about 100 of the world's leading researchers in the field. The resulting papers, presented in this volume, truly represent the definitive state of the art on the measurement and modelling of mud properties today.







Food Packaging Technology


Book Description

The protection and preservation of a product, the launch of new products or re-launch of existing products, perception of added-value to products or services, and cost reduction in the supply chain are all objectives of food packaging. Taking into consideration the requirements specific to different products, how can one package successfully meet all of these goals? Food Packaging Technology provides a contemporary overview of food processing and packaging technologies. Covering the wide range of issues you face when developing innovative food packaging, the book includes: Food packaging strategy, design, and development Food biodeterioation and methods of preservation Packaged product quality and shelf life Logistical packaging for food marketing systems Packaging materials and processes The battle rages over which type of container should be used for which application. It is therefore necessary to consider which materials, or combination of materials and processes will best serve the market and enhance brand value. Food Packaging Technology gives you the tools to determine which form of packaging will meet your business goals without compromising the safety of your product.




Oxygen-Free Museum Cases


Book Description

One of the challenges in protecting and displaying environmentally sensitive objects is preventing deterioration caused by the presence of oxygen. This volume describes the design and construction of an oxygen-free, hermetically sealed, display and storage case developed by the Getty Conservation Institute for the long-term protection of such objects. The case was originally designed as a collaborative project between the Egyptian Antiquities Organization and the GCI to conserve the Royal Mummy Collection at the Egyptian Museum in Cairo. Seven chapters cover the protection of cultural objects from environmental deterioration by reducing exposure to oxygen and by using inert gases for biodeterioration control. Also included are details on how the design and construction of the oxygen-free case has been adapted for other applications, specifically for the original documents of the Constitution of India in New Dehli and for the mummy collections at the Egyptian Museum and at the Museu Victor Balaguer in Vilanova i la Geltru, Spain. The Research in Conservation reference series presents the findings of research conducted by the Getty Conservation Institute and its individual and institutional research partners, as well as state-of-the-art reviews of conservation literature. Each volume covers a topic of current interest to conservators and conservation scientists.




Toxicological Profile for Aluminum (Update)


Book Description

This report provides information about aluminum and the human health effects of exposure. This chemical has been found in many sites identified by the EPA for long-term Federal cleanup activities. The report includes a Public Health Statement which explains the toxicologic properties of aluminum in a nontechnical, Q&A format, and a review of the general health effects observed following exposure; a description of health effects; how the chemical can affect children; and information on its chemical and physical properties, production, use and disposal, potential for human exposure, analytical methods, and regulations and advisories.