ERZURUM YÖRESİNDEKİ TARIMSAL YAPILARDA YAYGIN OLARAK KULLANILAN ŞENKAYA SARIÇAMININ ÖNEMLİ FİZİKSEL VE MEKANİK ÖZELLİKLERİ ÜZERİNE BİR ARAŞTIRMA
ERZURUM YÖRESİNDEKİ TARIMSAL YAPILARDA YAYGIN OLARAK KULLANILAN ŞENKAYA SARIÇAMININ ÖNEMLİ FİZİKSEL VE MEKANİK ÖZELLİKLERİ ÜZERİNE BİR ARAŞTIRMA
Yazar: Örüng, İbrahim
Dergi: Atatürk Üniversitesi Ziraat Fakültesi Dergisi, Vol. 22 No. 2, 2011

ÖZETAğacın yetişme koşulları ve yeri bünyesinin fiziksel ve mekanikÖzelliklerini etkiler. Bu nedenle ağaç malzemenin yapıda gereği gibi ve ekonomik birşekilde kullanılabilmesi için özelliklerinin belirlenmesi gerekir. Bu durum gözönündetutularak, Erzurum yöresindeki tarımsal yapılarda yaygın olarak kullanılan ŞenkayaSarıçamı'mn önemli fiziksel ve mekanik özelliklerinin belirlenmesi amacıyla bu araştırmayapılmıştır.Araştırma materyali olarak Erzurum ilinde bulunan kereste atölyelerindenseçilen üç adet Şenkaya Sarıçamı tomruğu kullanılmıştır. Fiziksel ve mekanik özelliklerinbelirlenmesinde kullanılacak örneklerin alınmasında, sayılarının saptanmasında vedeneylerin yapılmasında, büyük Ölçüde Türk Standartları Enstitüsünce yayınlanankonuyla ilgili standartlara uyulmuştur. Sonuçta her bir özelliğe ilişkin ortalama değerlerile birlikte çeşitli istatistiksel veriler elde edilmiştir.A RESEARCH ON THE IMPORTANT PHYSICAL AND MECHANICALPROPERT1ES OF THE WOOD SCOTCH PINE WHICH GROWS INŞENKAYA AND ARE WIDELY USED IN AGRICULTURALBUILDINGS IN ERZURUM REGIONSUMMARYThe place and the growing conditions of a tree affect its body'sphysical and fnechanical properties. So, the tree's properties have to be determined inorder to be able to use it for the construction economically and as needed. Consideringthis, a research has been carried out about Scotch pine which grows in Şenkaya and areused in agricultural buildings in Erzurum Regİon. In this research, the important physicaİ and mechanical properties af the material were determined.Three .Şenkaya Scotch pine's logs wh&icirc;ch were chosen from sawmills inErzurum were used as research material. In determining physicaİ and mechanicalproperties, getting the specimens which would be used, and determining numbers anddoing experiments, it was mostfy obeyed the related standards which were published byTurkisk Standardization Institıue. The results are asfollows :1. The average unit weight of tree was found 0.47 g/cm3 and 052 glcrn3 inöven dry and air dry respectively.2. The specimens were held in water ti 11 getting unchanged dimensions andthese were put in a piace having 65&plusmn;5 % relative humudity and 20+2 &deg;C temperaiure &icirc;illreaching balance moisture and the shr'tnkage values were found as 2.63 % at radial, 3.68% at tangential and volumetric shrinkage 851 %. When the same specimens were inöven dry condiüon, these values were 5.89 % at radial, 9.10 % at tangential, 1730 % involume. Having got the specimens in öven dry condition put in balance moisture innormal environmental conditions, the swell&icirc;ng values were 3.18 % at radial, 4.73 % attangential and 10.15 % in volume. When we got the specimen moisture into fibersatura&icirc;ion point the swelling rates were these 5.58 %, 9.17 %, and 19.18 %respectively.3. The value of compressive strength perpendicular to grain was found 41kgf/cm2.4. The value of compressive strength parallel to grain was found 428 kgflcm?,5. Static bending strength was found 624 kgf/cm2.6. The value of tensile strength perpendicular to grain was determined 14kgf/cm^ on the average.7.The value of tensile strength parallel to grain was found 575 kgf/cm2.8. When the specimens under the bending effect were applied load with theloading heads which were the half of the supports space distance, the modulus ofelasticity was 95500 kgf/cm2 on the average, and when the loading heads were one thirdof the supports space distance, this was 87800 kgf/cm9. The impact bending strength was determined 0.153 kgf/cm2.10. Shearing strength parallel to grain was 61 kgf/cm2 on the average.11. Static hardness was determined 258 kgfat radial, 253 kgf at tangential, and405 kgfat parallel to grain directions.12. The values of resistance to impact indentation were 0.180 kgfmJcm2 at radial, 0.190 kgfmlcm2 at tangential on the averag

ÖZETAğacın yetişme koşulları ve yeri bünyesinin fiziksel ve mekanikÖzelliklerini etkiler. Bu nedenle ağaç malzemenin yapıda gereği gibi ve ekonomik birşekilde kullanılabilmesi için özelliklerinin belirlenmesi gerekir. Bu durum gözönündetutularak, Erzurum yöresindeki tarımsal yapılarda yaygın olarak kullanılan ŞenkayaSarıçamı'mn önemli fiziksel ve mekanik özelliklerinin belirlenmesi amacıyla bu araştırmayapılmıştır.Araştırma materyali olarak Erzurum ilinde bulunan kereste atölyelerindenseçilen üç adet Şenkaya Sarıçamı tomruğu kullanılmıştır. Fiziksel ve mekanik özelliklerinbelirlenmesinde kullanılacak örneklerin alınmasında, sayılarının saptanmasında vedeneylerin yapılmasında, büyük Ölçüde Türk Standartları Enstitüsünce yayınlanankonuyla ilgili standartlara uyulmuştur. Sonuçta her bir özelliğe ilişkin ortalama değerlerile birlikte çeşitli istatistiksel veriler elde edilmiştir.A RESEARCH ON THE IMPORTANT PHYSICAL AND MECHANICALPROPERT1ES OF THE WOOD SCOTCH PINE WHICH GROWS INŞENKAYA AND ARE WIDELY USED IN AGRICULTURALBUILDINGS IN ERZURUM REGIONSUMMARYThe place and the growing conditions of a tree affect its body'sphysical and fnechanical properties. So, the tree's properties have to be determined inorder to be able to use it for the construction economically and as needed. Consideringthis, a research has been carried out about Scotch pine which grows in Şenkaya and areused in agricultural buildings in Erzurum Regİon. In this research, the important physicaİ and mechanical properties af the material were determined.Three .Şenkaya Scotch pine's logs wh&icirc;ch were chosen from sawmills inErzurum were used as research material. In determining physicaİ and mechanicalproperties, getting the specimens which would be used, and determining numbers anddoing experiments, it was mostfy obeyed the related standards which were published byTurkisk Standardization Institıue. The results are asfollows :1. The average unit weight of tree was found 0.47 g/cm3 and 052 glcrn3 inöven dry and air dry respectively.2. The specimens were held in water ti 11 getting unchanged dimensions andthese were put in a piace having 65&plusmn;5 % relative humudity and 20+2 &deg;C temperaiure &icirc;illreaching balance moisture and the shr'tnkage values were found as 2.63 % at radial, 3.68% at tangential and volumetric shrinkage 851 %. When the same specimens were inöven dry condiüon, these values were 5.89 % at radial, 9.10 % at tangential, 1730 % involume. Having got the specimens in öven dry condition put in balance moisture innormal environmental conditions, the swell&icirc;ng values were 3.18 % at radial, 4.73 % attangential and 10.15 % in volume. When we got the specimen moisture into fibersatura&icirc;ion point the swelling rates were these 5.58 %, 9.17 %, and 19.18 %respectively.3. The value of compressive strength perpendicular to grain was found 41kgf/cm2.4. The value of compressive strength parallel to grain was found 428 kgflcm?,5. Static bending strength was found 624 kgf/cm2.6. The value of tensile strength perpendicular to grain was determined 14kgf/cm^ on the average.7.The value of tensile strength parallel to grain was found 575 kgf/cm2.8. When the specimens under the bending effect were applied load with theloading heads which were the half of the supports space distance, the modulus ofelasticity was 95500 kgf/cm2 on the average, and when the loading heads were one thirdof the supports space distance, this was 87800 kgf/cm9. The impact bending strength was determined 0.153 kgf/cm2.10. Shearing strength parallel to grain was 61 kgf/cm2 on the average.11. Static hardness was determined 258 kgfat radial, 253 kgf at tangential, and405 kgfat parallel to grain directions.12. The values of resistance to impact indentation were 0.180 kgfmJcm2 at radial, 0.190 kgfmlcm2 at tangential on the averag