|Statement||by R.F. Luxford and L.J. Markwardt.|
|Series||Technical bulletin / United States Department of Agriculture -- no. 305., Technical bulletin (United States. Dept. of Agriculture) -- no. 305.|
|Contributions||Markwardt, L. J. 1889-|
|The Physical Object|
|Pagination||48 p., 6 p. of plates :|
|Number of Pages||48|
The strength and related properties of redwoodCited by: 7. ation of the strength and related properties of second-growth redwood. Most mechanical. were found to be 20 to 25 percent lower than those of virgin mate rial. Exceptions to this were maximum. strength parallel to grain and maximum tensile strength parallel to grain. The mechanical prop. The Strength Properties of European Redwood and Whitewood Issue 24 of Special report (Forest Products Research Laboratory (Princes Risborough, Buckinghamshire))) Issue 24 of Special report, . STRENGTH AND RELATED PROPERTIES OF WOODS GROWN IN THE UNITED STATES By L. J. MARKWARDT ^ and T. R. C. WILSON, senior engineersy Forest Products Laboratoryy^ Division of Research^ Forest Service CONTENTS Purpose and 2relation to 19other publications- Meaning Variationand importance of 17strength _ Testing procedure Variation4.
Redwood lumber is very soft and lightweight, with a decent strength-to-weight ratio. It is also exceptionally stable, with very little shrinkage or seasonal movement. The mechanical values listed at the top of the page represent the averages between both old-growth lumber and second-growth lumber. Strength properties less commonly measured in clear wood include torsion, toughness, rolling shear, and fracture tough- ness. Other properties involving time under load include creep, creep rupture or duration of load, and fatigue strength. Torsion strength—Resistance to twisting about a longi- tudinal axis. strength properties of clear straight grained poles to ac-count for knots, slope of grain, density, size of member, and other factors unique to timber poles. Specific methods used to establish reference design values are contained in D and are used by D These methods have been revised to reflect results of full-size tests of timber piles. Aug 07, · Strength and Related Properties of Concrete addresses the most important single property of concrete--its strength--with the goal of contributing to concrete's technical and economical improvement. The book is unique in containing, in a single volume, all of the quantitative tools needed to evaluate, understand, and improve concrete cyrusofficial.com by:
Common names include Coast Redwood and California Redwood (it is one of three species of trees known as redwoods). She is a long-lived evergreen, she could be older then years, but she will tell you 'age is irrelevant'. She grows quickly reaching sometimes over ft in her first few hundred years. Mar 23, · Strength and Related Properties of Concrete by Sandor Popovics, , available at Book Depository with free delivery cyrusofficial.com: Sandor Popovics. The following table is Structural Lumber Wood Engineering Properties. Modulus of Elasticity of Wood, Wood Engineering Design Data. Modulus of elasticity also referred to as Tensile Modulus or Young's Modulus. Elastic ratios for various wood species at approximately 12% moisture content - see bottom of webpage. Redwood is easily machined, easy to saw and nail and has superior gluing properties as well as superior finish-holding ability. It is known for its easy maintenance and beautiful color: a deep reddish brown that darkens with age. Redwood is most often used for applications where high moisture levels are a problem for other types of wood.