Conservation of Wood Artifacts: A Handbook by Dr. rer. nat. Achim Unger, Professor Dr. Arno P. Schniewind,

By Dr. rer. nat. Achim Unger, Professor Dr. Arno P. Schniewind, Professor Dr. rer. nat. Wibke Unger (auth.)

The impetus for this ebook used to be the need to systematically manage the extant literature at the conservation of cultural estate made from wooden, from its beginnings ahead of the Christian period to the yr 2000. quite a few released stories and monographs, together with Holzkonservierung (Wood Conserva­ tion) released through the senior writer in 1988, have seemed through the years, particularly in English and in German. they've got supplied exemplary deal with­ benefit of person components or features of wooden conservation, yet a comprehen­ sive, up to date exposition of old and present advancements has been missing. the various specialist fields of the authors, in addition to their insights into equipment of conservation and recovery of wooden artifacts in Europe, North the US, and Asia supplied a pretty good foundation for the good fortune of this lower than­ taking. one of many pursuits in the course of the exam of the literature used to be that not just recognized conservators and scientists from international locations which are leaders in wooden conservation might be represented, yet that much less recognized, frequently now not as comfortably available contributions also needs to be integrated. purely during this demeanour was once it attainable to attract a finished photograph of the nationwide and foreign nation of wooden conservation. The artwork and Archaeology Technical Abstracts (AATA) of the Getty Institute have been very useful in our efforts to judge as many courses as possible.

Show description

Read Online or Download Conservation of Wood Artifacts: A Handbook PDF

Best conservation books

Battery Reference Book

Crompton's "Battery Reference booklet" has develop into the normal reference resource for quite a lot of pros and scholars fascinated by designing, production, and specifying items and platforms that use batteries. This publication is exclusive in supplying wide facts on particular battery forms, brands and providers, in addition to masking the speculation - a facet of the publication which makes an up-to-date variation very important for each professional's library.

Trees, Truffles, and Beasts: How Forests Function

In modern international of specialization, individuals are trying to safeguard the Earth's fragile country through swapping limousines for hybrids and pesticide-laced meals for natural produce. At different occasions, environmental know-how is translated into public relatives gimmicks or fashionable commodities. additionally, simplistic rules, like single-species safety or planting ten timber for each tree lessen, are touted as bureaucratic or business panaceas.

Energy Choices: A Guide to Facts & Perspectives

This ebook is meant to provide the reader a few info to higher comprehend the complexities of the power international and its ongoing evolution. It presents a context for our overall power destiny as we all know it this present day. strength offerings: A consultant to evidence and views is the results of the efforts of diverse contributors and colleagues of the ASME who've targeted specialist and technical backgrounds which are without delay appropriate to this project.

The Provision of Public Services in Europe: Between State, Local Government and Market

The publication is the 1st of its sort to supply a comparative research of the availability of social and public prone in France, Italy, Germany, the united kingdom and Norway. This quantity, co-authored by means of prime nationwide specialists, topically examines even if, while, how and why the supply of social and public prone, which used to be traditionally a accountability of neighborhood professionals, has been considerably shifted to marketized and commodified varieties.

Extra info for Conservation of Wood Artifacts: A Handbook

Sample text

Although the resistance of wood to biological deterioration depends on many factors, woods of lower density tend to have lower natural resistance. Natural durability of wood species is increasingly taken into consideration in wood construction. 5 shows a list of selected US native and imported species classified according to the decay resistance of the heartwood only, since the sapwood of all species has little or no natural resistance. Methods of determining wood density are discussed in Chapter 6.

5). Cellulose and the hemicelluloses are polysaccharides and are known collectively as holocellulose. Lignin is aromatic in nature. In addition, small quantities of polymeric substances such as starch, pectins, gums, and proteins may occur in wood. The extraneous substances are generally of relatively low relative molecular mass, and may be organic or inorganic. The organic extractives may include phenolics, terpenes, aliphatic acids and alcohols (as esters) as well as water soluble mono- and disaccharides.

C Q) ..... 0 Desorption () Q) I... c 10 recent wood ::J t:T w 40 60 80 100 Relative humidity (%) Fig. 3. Desorption isotherms for waterlogged oak. 1 Wood-Moisture Relations 31 compared with recent wood. The data show that hygroscopicity in old, waterlogged wood increases to varying degrees. The reasons are to be found in the extent as well the mechanism of the decomposition. Age alone did not appear to be a factor in the increase of hygroscopicity, at least in the case of oak. Shrinking and swelling behavior of waterlogged archaeological wood is of major importance to its drying and stabilization.

Download PDF sample

Rated 4.04 of 5 – based on 11 votes