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تأثير عوامل مختلفة لتصلب الخط الصمغي في قوة الشد للقطع المائل و قوة الشد الجاف و الرطب في التراكيب الخشبية
Other Title(s)
Influence of different factors on adhesive line solidification in shear tension test and dry and wet tensile tension test of wood structure
Joint Authors
آلاء عمر أحمد
الملاح، عبد الرزاق رؤوف سليمان
Source
Issue
Vol. 41, Issue 2 (30 Jun. 2013), pp.167-180, 14 p.
Publisher
University of Mosul College of Agriculture and Forestry
Publication Date
2013-06-30
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Abstract EN
This study was conducted to test the strength of glue line in wood structures by using some mechanical tests (shear strength test, Dry and wet tensile tests).
Two kinds of adhesives (Urea-formaldehyde (UF) and poly-vinyl acetate (PVA) with three types of wood surfaces (Pure Pine, Pure Sycamore and substrate of Pine with Sycamore) and two methods of adhesive curing (Electrical and microwave domestic ovens) were used.
It was shown from the study results that wood type had an effect in share tension test, pine wood gave the best results followed by shear tension of sycamore wood and pine with sycamore wood, but there were no significances between the three types of woods.
Urea formaldehyde adhesive got the highest shear tension values when compared with PVA adhesive.
Solidification by using electrical oven method gave the best values in shear tension as compared with the microwave oven curing method.
The results also showed that 1 gm adhesive quantity gave the best results as compared with 0.75 gm and 0.5 gm in shear tension.
Concerning the dry and wet tensile tension of the PVA glue line by using electrical oven dry, microwave oven and room temperature solidification methods, the results showed that pine wood had greater dry and wet tensile tension than sycamore wood and pine with sycamore wood.
Also, parallel grain direction gave the best values as compared to perpendicular grain direction for both dry and wet tensile tension.
The results also showed that the highest dry tensile tension was by using electrical oven solidification method، followed by room temperature method، while solidification by using microwave oven gave the lower tensile tension value.
Room temperature solidification method gave the best results in tensile tension after emersion in water for 30 and 60 minute as compared to electrical oven and microwave oven solidification process respectively.
Also, 2 gm adhesive gave the best results in tensile tension compared to 1.5 gm and 1 gm adhesive quantities.
American Psychological Association (APA)
الملاح، عبد الرزاق رؤوف سليمان وآلاء عمر أحمد. 2013. تأثير عوامل مختلفة لتصلب الخط الصمغي في قوة الشد للقطع المائل و قوة الشد الجاف و الرطب في التراكيب الخشبية. مجلة زراعة الرافدين،مج. 41، ع. 2، ص ص. 167-180.
https://search.emarefa.net/detail/BIM-885492
Modern Language Association (MLA)
الملاح، عبد الرزاق رؤوف سليمان وآلاء عمر أحمد. تأثير عوامل مختلفة لتصلب الخط الصمغي في قوة الشد للقطع المائل و قوة الشد الجاف و الرطب في التراكيب الخشبية. مجلة زراعة الرافدين مج. 41، ع. 2 (2013)، ص ص. 167-180.
https://search.emarefa.net/detail/BIM-885492
American Medical Association (AMA)
الملاح، عبد الرزاق رؤوف سليمان وآلاء عمر أحمد. تأثير عوامل مختلفة لتصلب الخط الصمغي في قوة الشد للقطع المائل و قوة الشد الجاف و الرطب في التراكيب الخشبية. مجلة زراعة الرافدين. 2013. مج. 41، ع. 2، ص ص. 167-180.
https://search.emarefa.net/detail/BIM-885492
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 179-180
Record ID
BIM-885492