Bowing In Roof Joists Induced By Moisture Gradients And Slope Of Grain
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Bowing In Roof Joists Induced By Moisture Gradients And Slope Of Grain
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Author : R. L. Tuomi
language : en
Publisher:
Release Date : 1975
Bowing In Roof Joists Induced By Moisture Gradients And Slope Of Grain written by R. L. Tuomi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Roofing categories.
Bowing In Roof Joists Induced By Moisture Gradients And Slope Of Grain
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Author : Roger L. Tuomi
language : en
Publisher:
Release Date : 1975
Bowing In Roof Joists Induced By Moisture Gradients And Slope Of Grain written by Roger L. Tuomi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Roofing categories.
U S D A Forest Service Research Paper Fpl
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Author :
language : en
Publisher:
Release Date : 1974
U S D A Forest Service Research Paper Fpl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Forest products categories.
List Of Publications
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Author : Forest Products Laboratory (U.S.)
language : en
Publisher:
Release Date : 1973
List Of Publications written by Forest Products Laboratory (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Forests and forestry categories.
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1976
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Agriculture categories.
Kiln Drying Of Lumber
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Author : R.B. Keey
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Kiln Drying Of Lumber written by R.B. Keey and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
At present, no single book adequately covers a basic understanding of wood book satisfies the need for such a work. It describes drying in practice. This the fundamental basis of kiln-drying technology, to enable forest companies to imFrove their drying operations as high-quality timbers become scarcer and of yesteryear can no longer be tolerated. Adaptive the wasteful practices is no longer good enough. Innovations change based on past experience of the material being dried and the processes require a sound understanding of drying. Newer techniques, such as the use of ultrahigh temperature sea soning and superheated steam under vacuum, require an even greater depth of physical understanding for these methods to be used effectively and economically. book provides a description of modern ideas about wood structure, This moisture movement and stress development, from which models of the drying process are developed to give the kiln operator important information about the course of drying under specified conditions, and thus a means is compared with practice wherever for rational process improvement. Theory possible.
Wood Industry Abstracts
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Author :
language : en
Publisher:
Release Date : 1976
Wood Industry Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Forest products industry categories.
Architectural Construction Materials Non Concrete V 1 1964 1974 V 2 1975 April 1978
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Author : United States. National Technical Information Service
language : en
Publisher:
Release Date : 1976
Architectural Construction Materials Non Concrete V 1 1964 1974 V 2 1975 April 1978 written by United States. National Technical Information Service and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Building materials categories.
Bowing In Roof Joists Induced By Moisture Gradients And Slope Of Grain
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Author : Roger L. Tuomi
language : en
Publisher:
Release Date : 1975
Bowing In Roof Joists Induced By Moisture Gradients And Slope Of Grain written by Roger L. Tuomi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
During winter months many houses constructed with flat or low-pitched roofs have exhibited upward bowing deflections of 5/8 to 3/4 inch at midspan causing a separation between ceiling and partitions. Where the problems exist, a definite moisture gradient across the depth of the roof joist has been measured in the field. Wood has a very low shrinkage coefficient in the longitudinal direction which is essentially parallel to the axis of the lumber. Its magnitude is far too low to account for the bowing deflections recorded in actual houses. However, shrinkage values in the radial or tangential direction are 50 to 80 times greater than the longitudinal. Any significant slope of grain produces shrinkage components from the tangential and radial direction relative to the axis of the member. Twenty-six specimens of three different species were cut with varying slopes of grain. A moisture gradient was created across the depth of the specimen and bowing deflections were observed. Relationships between bowing deflection and grain angle were established. The magnitudes of observed deflections agreed with those measured in the field. (Author).
Building Science Abstracts
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Author :
language : en
Publisher:
Release Date : 1976
Building Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Building categories.