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From PDHengineer. com-Decatur Professional Development, LLC
Low-Density Concrete Properties
Overview The use of low-density concrete provides several advantages with the primary, and most obvious, benefit being a 15 to 25 savings in weight without sacrificing the overall strength of a structure. However, the use of low-density concrete can result in a considerable impact to the structural design and cost of the structure. In this course, the student will review Engineer Circular (EC)
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Lumber Stress Grades and Design Properties
...e student will review Chapter 6, Lumber Stress Grades and Design Properties from General Technical Report FPL-GTR-113, "Wood Handbook - Wood as an Engineering Material" published by the Forest Products Laboratory, USDA Forest Service (issued March 1999). The student must take a multiple-choice quiz consisting of ten (10) questions at the end of this course to earn PDH credits.
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