يشمل هذا البحث دراسة مقارنة للخواص الفيزيائية للخشب المضغوط المصنع من مخاريط الصنوبر و شجرة الازدرخت.
أثبتت هذه الدراسة إمكانية تصنيع ألواح من الخشب المضغوط من مخاريط الصنوبر و بقايا تقليم أشجار الازدرخت و بمواصفات فيزيائية جيدة , الأمر الذي يساهم في رفع القيمة الاقتصادية لهما.
This research includes a comparative study of the physical
properties of compressed wood factory of pine cones and tree Alazdrecht.
This study demonstrated the feasibility of manufacturing slabs of pressed
wood from pine cones and the remnants of pruning trees Alazdrecht and
physical attributes of a good، which contribute to the lifting of economic
value to them.
References used
DEPPE، H. J.، ERNST، K.، 1992: Technologieder Spanplattentechnik،DRW-Verlag،Leinfelden-Echterdingen4. Auflage.Deutschland
DIN-TACHENBUCH 60. 1999 Holzfaserplatten،Spanplatten ،Spanplatten und Sperrholz-. BeuthVerlag
HAMEED، M.; BEHN، C.; Roffael، E. und Dix،B.2005(1): Benetzbarkeit von Recyclingspänen und "frischen" HolzspänenmitverschiedenenBindemitteln. HolzalsRoh- und Werkstoff،63: 394-395
3 composite samples were taken from each area from 3 different sites, and a number of physical and chemical analyzes were performed, and the results were linked to the climate factors, mother rock and fertilizing treatments.
The physical properties of gravel play an important role on the
quality of concrete industry in local workshops. Because they
constitute a main role in various concrete mix design. It's
necessary to understand the importance of the physical proper
This research deals with producing structural lightweight aggregates concrete (the
density is less than 1920kg/m3 and compressive strength is more than 17.2Mpa according
to ACI 213R-03) by using scoria aggregates. Several concrete mixes have been d
This study was conducted at Darya and Abe Jerash regions to study some Physical properties of the two soil types such as: soil depth, soil texture, bulk density, Specific weight and Porosity. Results showed that Bulk density average decreased and the
The research aims to study is to study the effect of the pH factor of Pterocladia
capillacea on agar yield and some of its physical properties using different degrees of pH
(4- 5.5 - 5.5 - 6.5 - 7.5 - 7.5 - 8). The maximum yield of agar was 37.45%