By A. Unger, A.P. Schniewind, W. Unger
This guide is the main accomplished, updated resource of knowledge at the background of wooden conservation, at the constitution and homes of wooden, on organisms inflicting deterioration, on tools of prognosis of wooden situation, on fabrics and techniques of wooden maintenance, on consolidation of deteriorated wooden, and on wooden adhesives. even though it offers many thoughts of wooden conservation intimately, it is going a long way past the scope of a "recipe e-book" by means of giving an outline of using specific fabrics and strategies as they practice to dry in addition to rainy or waterlogged wooden. entry to the big wealth of knowledge is facilitated via separate indexes for alternate names, pests, and conservation fabrics. The latter, including their tools of software, have been accumulated from the literature and arranged chronologically. For liquid preservatives, fumigants, and consolidants, those listings are preceded by way of very important information on all the fabrics.
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Extra resources for Conservation of Wood Artifacts: A Handbook (Natural Science in Archaeology)
Although they are often referred to as white ants because of their calor, they are not ants but there are certain parallels in their habit. Termites are social insects forming colonies, and often exhibit marked poly morphism (caste formation). Termites live mainly in tropical and subtropical regions. They require warmth and moisture and therefore prefer a temperature of 26-32 'C and a relative humidity of 70-90%. Accordingly, their natural distribution is mainly confined to regions south of the 10'C yearly isotherm (Fig.
Insect species differ in their preference for wood depending on its mois ture content (cf. 1). >50%) are found exclusively in the forest or in log storage piles. The growth rate of larvae in air-dry wood depends on a moisture content level of not less than about 7%. , wood wasp, bark borer). Temperature greatly influences the life processes of insects. When the ambient temperature falls below certain levels or rises above others, larval activities such as feeding or movement will cease. Increasing temperatures generally are accompanied by greater activity up to an optimum level, the limits of which can differ considerably among species.
Dusseldorf Kucera LJ,SellJ (1987) Die Verwitterung van Buchenholz irn Holzstrahlbereich. Holz Roh Werkst 45:89-93 MacLeod ID, Richards VI (1997) The impact of metal corrosion products on the degradation of waterlogged wood recovered from historic shipwreck sites. In: Hoffmann P, Grant T, Spriggs JA, Daley T (eds) Proceedings of the 6th ICOM Group on Wet Organic Archaeological Mate rials Conference, York 1996, Bremerhaven 1997, pp 331-353 Meseck H, Knlipfer J (1988) The bearing behavior of historical wooden pile foundations.