Title page for ETD etd-06032010-020030


Type of Document Dissertation
Author Kubinsky, Eugene Joseph
URN etd-06032010-020030
Title Mechanical behavior of red oak in transverse compression as affected by hydro-treatments and its relations to changes in cell wall structure and composition.
Degree PhD
Department Forestry
Advisory Committee
Advisor Name Title
Ifju, Geza Committee Chair
Hinkelmann, Klaus H. Committee Member
Hosner, John F. Committee Member
Martin, Robert A. Committee Member
Stern, E. G. Committee Member
Stipes, R. Jay Committee Member
Keywords
  • steam treatment
Date of Defense 1971-11-15
Availability restricted
Abstract

Influence of steam-treatment upon properties, structure, and composition of red oak was investigated. Small specimens of red oak heartwood were submitted to steam-treatments at atmospheric pressure for 1.5, 3, 6, 12, 24, 48, and 96 hours.

Short steaming induced little or no changes in the properties and the composition of red oak. Prolonged steaming, however, resulted in significant changes in physical and mechanical properties as well as in structure and chemical composition of wood.

Shrinkage increased significantly with increasing steaming time. After 96 hrs of steaming volumetric shrinkage to the air-dry condition was 4.4 times that of the non-treated wood and was thus indicative of cell wall collapse. Specific gravity and equilibrium moisture content were decreasing and air-dry density was increasing with an increase in steaming time. Color of wood became darker and the fluid content brighter with prolonged steaming.

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