长沙市坡子街出土木构件脱水保护

Dehydration Protection of Wooden Structural Components Unearthed from Pozi Street of Changsha City

2004年长沙市坡子街出土的大批木构件是南宋时期的城市供水系统,规模宏大,具有极高的文物价值。本文从分析该批木构件病变机理着手,筛选出切实可行的脱水保护方法,从而对这些木构件做清洗、脱色、脱水等保护处理,并从脱水前后的质量和收缩率两方面进行分析评估。

The wooden structural components unearthed from Pozi Street of Changsha City in 2004,in great number and in massive size,belong to the water supply system of the Southern Song Dynasty and have great cultural relic value.This article analyzes the mechanism behind the deterioration of these wooden structural components and selects some practical methods of dehydration protection to carry out such protective treatments as cleansing,decolorization and dehydration.It also makes analysis from the two aspects of the quality and shrinkage ratio before and after dehydration.