Moisture Content, Specific Gravity, and Air Space in Wood

Abstract

An exposition of the physics of wood is given in the paper. It describes the cell structure of wood and the physical changes that take place as it is dried to oven-dry condition or impregnated to maximum absorption. Formulas and graphs give the relation that exists between percentage of moisture content, specific gravity, water content, total weight, and percentage of air space. The data are of interest to those engaged in wood research or wood physics or in kiln drying, wood preserving, or fireproofing.