Research Article
Cam elyaf file ile güçlendirilen tabakalı kaplama kerestenin (TKK) bazı mekanik özellikleri üzerine bir araştırma
Abstract
Yapısal kompozit kerestelerin, masif ağaç malzemeye göre üstün bazı özellikleri bulunmaktadır. Kusurlarından arındırılmış, daha güçlü bir malzeme olması, daha büyük ölçülerde temin edilebilmesi bu üstün özelliklerinden bazılarıdır. Özellikle son yıllarda daha güçlü yapısal kompozit keresteler elde edebilmek için farklı bilimsel çalışmalar yapılmaktadır. Bu çalışmada, kavak soyma kaplamaları ve cam elyaf file ile beraber PVA tutkalı kullanılarak tabakalı kaplama kereste üretilmiştir. Bir kontrol grubu ve 3 deney grubu oluşturulmuştur. Deney gruplarında 2, 4 ve 6 tutkal tabakasına cam elyaf file yerleştirilmiştir. Her bir grup için 4 levha üretilmiştir. Üretilen levhaların, eğilme direnci, elastikiyet modülü, vida tutma direnci, yarılma direnci ve bu testlerin sonunda elde edilen maksimum deformasyon miktarı araştırılmıştır. Elde edilen verilere göre; kontrol grubuna göre, 6 cam elyaf file kullanılan levhaların eğilme direncinde ve yarılma direncinde önemli derecede bir artış sağlandığı diğer gruplarda meydana gelen artışın istatistiksel olarak önemsiz olduğu belirlenmiştir. Mekanik özelliklerle ilgili yapılan tüm testlerde cam elyaf file ile yapılan güçlendirmenin, maksimum deformasyon miktarına pozitif yönde etki ettiği tespit edilmiştir. Bu artışın özelikle vida tutma direnci ve yarılma direncinde önemli seviyede olduğu belirlenmiştir.
Supporting Institution
Kahramanmaraş Sütçü İmam Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi
Project Number
2021/1-36 M
Thanks
Bu çalışma Kahramanmaraş Sütçü İmam Üniversitesi araştırma projeleri yönetim birimi başkanlığı tarafından desteklenmiştir. Proje numarası: 2021/1-36 M. Bu desteğinden dolayı KSÜ-BAP birimine teşekkür ediyoruz.
References
- Bal. B.C., Özdemir, F., Altuntaş E, (2013), Masif ağaç malzeme ve tabakalı kaplama kerestenin vida tutma direnci üzerine karşılaştırmalı bir çalışma, Düzce Üniversitesi Ormancılık Dergisi, 9(2),14-22.
- Bal. B.C., (2014), Flexural properties, bonding performance and splitting strength of LVL reinforced with woven glass fiber, Construction and Building Materials, 51 (2014), 9–14.
- Bal, B. C., Özyurt, H. (2015), Cam elyaf dokuma ile güçlendirilmiş tabakalı kaplama kerestenin bazı teknolojik özellikleri. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimler Dergisi, 18 (1), 9-16.
- Bal, B. C., Bektaş, İ., Mengeloğlu, F., Karakuş, K., Demir, H. Ö. (2015), Some technological properties of poplar plywood panels reinforced with glass fiber fabric, Construction and Building Materials, 101(1), 952-957.
- Bal, BC, (2017), Screw and nail holding properties of plywood panels reinforced with glass fiber fabric, Cerne, 23(1), 11-18.
- Bao, F., Fu, F., Choong, T., H.S.E., C, (2001), Contribution factor of wood properties of three poplar clones to strength of laminated veneer lumber, Wood and Fiber Science, 33 (3), 345-352.
- Basterra, LA, Acuna, L, Casado, M, Lopez, G, Bueno, A, (2012), Strength testing of Poplar duo beams, Populus x euramericana (Done) Guinier cv. I-214, with fibre reinforcement, Construction and Building Materials, 36 (2012), 90-96.
- Biblis EJ. (1965), Analysis of wood-fiberglass composite beams within and beyond the elastic region, Forest Products Journal, 15 (2), 81-89.
- Biblis, E. J., Carino, H. F. (2000), Flexural properties of southern pine plywood overlaid with fiberglass-reinforced plastic, Forest Products Journal, 50(4), 34-34.
- Burdurlu, E., Kılıç, M., İlce, A.C., Uzunkavak, O., (2007), The effects of ply organization and loading direction on bending strength and modulus of elasticity in laminated veneer lumber (LVL) obtained from beech (Fagus orientalis L.) and Lombardy poplar (Populus nigra L.), Construction and Building Materials, 21: 1720–1725.
- Karaman, A., Yildirim, M. N., Tor, O. (2021), Bending characteristics of laminated wood composites constructed with black pine wood and aramıd fiber reinforced fabric, Wood Research, 66(2), 309-320.
- Laufenberg TL, Rowlands RE, Krueger GP. (1984), Economic feasibility of synthetic fiber reinforced laminated veneer lumber (LVL), Forest Products Journal, 34 (4), 15-22.
- Neuvonen, E., Salminen, M., Heiskanen, J., (1998), Laminated Veneer Lumber, Wood Based Panels Technology, Department of Forest Products Marketing.
- Ozarska, B. (1999), A review of the utilization of hardwoods for LVL, Wood Science and Technology.33, 341-351.
- Ribeiro AS, Jesus AMP, Lima AM, Lousada JLC, (2009), Study of strengthening solutions for glued-laminated wood beams of maritime pine wood, Construction and Building Materials, 23:2738-2745.
- Rowlands RE, Deweghe RPV, Laufenberg TL, Krueger GP, (1986), Fiber-reinforced wood composites, Wood and Fiber Science, 18 (1), 39-57.
- Shukla, S.R., Kamdem, P.D. (2009), Properties of laboratory made yellow poplar (Liriodendron Tulipifera) laminated veneer lumber: effect of the adhesives, European Journal of Wood and Wood Products, 67: 397–405.
- TS 2472, Odunda fiziksel ve mekaniksel deneyler için hacim yoğunluk değerinin tayini, Türk Standartları Enstitüsü, Ankara, 1976.
- TS 2474, Odunun statik eğilme dayanımının tayini, Türk Standartları Enstitüsü, Ankara, 1976.
- TS 2478, Odunun statik eğilmede elastiklik modülünün tayini, Türk Standartları Enstitüsü, Ankara, 1976.
- TS 7613, Odunun yarılma mukavemetinin tayini, Türk Standartları Enstitüsü, Ankara, 1989.
- TS EN 13446, Ahşap esaslı levhalar-Bağlayıcıların geri çıkma kapasitesinin tayini, TSE- Ankara. 2005.
- Wangaard FF. (1964), Elastic deflection of wood–fiberglass composite beams, Forest Products Journal, 13 (6), 256-260.
- Yildrim, M. N., Karaman, A., Zor, M. (2021), Bending characteristics of laminated wood composites made of poplar wood and GFRP, Drvna industrija, 72(1), 3-11.
Research on some mechanical properties of laminated veneer lumber (LVL) strengthened with glass fiber net
Abstract
Structural composite lumbers (SCLs) have some superior properties compared to solid wood material. Being free from defects, stronger material, and available in larger sizes are some of these superior features. Especially in recent years, different scientific studies have been carried out to obtain stronger structural composite timbers. In this study, laminated veneer lumber was produced using PVA adhesive together with poplar rotary-peeled veneers and glass fiber net. One control group and 3 experimental groups were formed. Glass fiber net was placed in 2, 4 and 6 glue layers in the experimental groups. Four boards were produced for each group. Flexural strength, modulus of elasticity, the screw holding resistance, splitting resistance and the maximum amount of deformation obtained at the end of these tests were investigated. According to the data obtained; compared to the control group, it was determined that there was a significant increase in the flexural strength and splitting strength of the boards used 6 glass fiber mesh, and the increase in the other groups was statistically insignificant. In all tests on mechanical properties, it was determined that the reinforcement with glass fiber mesh had a positive effect on the maximum amount of deformation. It was determined that this increase was especially significant in screw holding strength and splitting strength.
Project Number
2021/1-36 M
References
- Bal. B.C., Özdemir, F., Altuntaş E, (2013), Masif ağaç malzeme ve tabakalı kaplama kerestenin vida tutma direnci üzerine karşılaştırmalı bir çalışma, Düzce Üniversitesi Ormancılık Dergisi, 9(2),14-22.
- Bal. B.C., (2014), Flexural properties, bonding performance and splitting strength of LVL reinforced with woven glass fiber, Construction and Building Materials, 51 (2014), 9–14.
- Bal, B. C., Özyurt, H. (2015), Cam elyaf dokuma ile güçlendirilmiş tabakalı kaplama kerestenin bazı teknolojik özellikleri. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimler Dergisi, 18 (1), 9-16.
- Bal, B. C., Bektaş, İ., Mengeloğlu, F., Karakuş, K., Demir, H. Ö. (2015), Some technological properties of poplar plywood panels reinforced with glass fiber fabric, Construction and Building Materials, 101(1), 952-957.
- Bal, BC, (2017), Screw and nail holding properties of plywood panels reinforced with glass fiber fabric, Cerne, 23(1), 11-18.
- Bao, F., Fu, F., Choong, T., H.S.E., C, (2001), Contribution factor of wood properties of three poplar clones to strength of laminated veneer lumber, Wood and Fiber Science, 33 (3), 345-352.
- Basterra, LA, Acuna, L, Casado, M, Lopez, G, Bueno, A, (2012), Strength testing of Poplar duo beams, Populus x euramericana (Done) Guinier cv. I-214, with fibre reinforcement, Construction and Building Materials, 36 (2012), 90-96.
- Biblis EJ. (1965), Analysis of wood-fiberglass composite beams within and beyond the elastic region, Forest Products Journal, 15 (2), 81-89.
- Biblis, E. J., Carino, H. F. (2000), Flexural properties of southern pine plywood overlaid with fiberglass-reinforced plastic, Forest Products Journal, 50(4), 34-34.
- Burdurlu, E., Kılıç, M., İlce, A.C., Uzunkavak, O., (2007), The effects of ply organization and loading direction on bending strength and modulus of elasticity in laminated veneer lumber (LVL) obtained from beech (Fagus orientalis L.) and Lombardy poplar (Populus nigra L.), Construction and Building Materials, 21: 1720–1725.
- Karaman, A., Yildirim, M. N., Tor, O. (2021), Bending characteristics of laminated wood composites constructed with black pine wood and aramıd fiber reinforced fabric, Wood Research, 66(2), 309-320.
- Laufenberg TL, Rowlands RE, Krueger GP. (1984), Economic feasibility of synthetic fiber reinforced laminated veneer lumber (LVL), Forest Products Journal, 34 (4), 15-22.
- Neuvonen, E., Salminen, M., Heiskanen, J., (1998), Laminated Veneer Lumber, Wood Based Panels Technology, Department of Forest Products Marketing.
- Ozarska, B. (1999), A review of the utilization of hardwoods for LVL, Wood Science and Technology.33, 341-351.
- Ribeiro AS, Jesus AMP, Lima AM, Lousada JLC, (2009), Study of strengthening solutions for glued-laminated wood beams of maritime pine wood, Construction and Building Materials, 23:2738-2745.
- Rowlands RE, Deweghe RPV, Laufenberg TL, Krueger GP, (1986), Fiber-reinforced wood composites, Wood and Fiber Science, 18 (1), 39-57.
- Shukla, S.R., Kamdem, P.D. (2009), Properties of laboratory made yellow poplar (Liriodendron Tulipifera) laminated veneer lumber: effect of the adhesives, European Journal of Wood and Wood Products, 67: 397–405.
- TS 2472, Odunda fiziksel ve mekaniksel deneyler için hacim yoğunluk değerinin tayini, Türk Standartları Enstitüsü, Ankara, 1976.
- TS 2474, Odunun statik eğilme dayanımının tayini, Türk Standartları Enstitüsü, Ankara, 1976.
- TS 2478, Odunun statik eğilmede elastiklik modülünün tayini, Türk Standartları Enstitüsü, Ankara, 1976.
- TS 7613, Odunun yarılma mukavemetinin tayini, Türk Standartları Enstitüsü, Ankara, 1989.
- TS EN 13446, Ahşap esaslı levhalar-Bağlayıcıların geri çıkma kapasitesinin tayini, TSE- Ankara. 2005.
- Wangaard FF. (1964), Elastic deflection of wood–fiberglass composite beams, Forest Products Journal, 13 (6), 256-260.
- Yildrim, M. N., Karaman, A., Zor, M. (2021), Bending characteristics of laminated wood composites made of poplar wood and GFRP, Drvna industrija, 72(1), 3-11.
There are 24 citations in total.
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Timber, Pulp and Paper |
| Journal Section | Articles |
| Authors | |
| Project Number | 2021/1-36 M |
| Publication Date | December 27, 2021 |
| Submission Date | October 24, 2021 |
| Acceptance Date | November 20, 2021 |
| Published in Issue | Year 2021 Volume: 4 Issue: 2 |
International Journal