Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/article/doi/10.1590/0104-1428.20220070
Polímeros: Ciência e Tecnologia
Original Article

Influence of carbon fibre layers on the strength of thermally modified laminated veneer lumber

Osman Perçin; Onur Ülker

Downloads: 1
Views: 545

Abstract

Thermally modification of wood is an environment-friendly alternative method for improving several properties of wood without the use of chemicals. The compressive strength (CS) parallel to the grain of reinforced laminated veneer lumber (LVL) manufactured from heat treated beech (Fagus orientalis) veneers and carbon fibre was determined. Thermally modification was performed at 140°C, 160°C, 180°C, and 200 °C according to thermal treatment process. Carbon fibre were added as a reinforcement layer between wood veneers bonded with phenol-formaldehyde (PF), polyvinyl acetate (PVAc) polyurethane adhesives (PU) to improve properties of LVL. Results showed that reinforcing LVL panels with carbon fibre increased both density and CS. The PF adhesive showed better results for reinforced LVL panels with carbon fibre. The anatomical structure and density of the wood material significantly affect its mechanical properties, including compressive strength parallel to the grains. Wood density had a strong significant linear relationship with CS.

 

 

Keywords

laminated veneer lumber, carbon fibre, thermal treatment process, beech

References

1 Malaga-Toboła, U., Łapka, M., Tabor, S., Niesłony, A., & Findura, P. (2019). Influence of wood anisotropy on its mechanical properties in relation to the scale effect. International Agrophysics, 33(3), 337-345. http://dx.doi.org/10.31545/intagr/110808.

2 Percin, O., & Altunok, M. (2017). Some physical and mechanical properties of laminated veneer lumber reinforced with carbon fibre using heat-treated beech veneer. Holz als Roh- und Werkstoff, 75(2), 193-201. http://dx.doi.org/10.1007/s00107-016-1125-z.

3 Ramage, M. H., Burridge, H., Busse-Wicher, M., Fereday, G., Reynolds, T., Shah, D. U., Wu, G., Yu, L., Fleming, P., Densley-Tingley, D., Allwood, J., Dupree, P., Linden, P. F., & Scherman, O. (2017). The wood from the trees: the use of timber in construction. Renewable & Sustainable Energy Reviews, 68(Part 1), 333-359. http://dx.doi.org/10.1016/j.rser.2016.09.107.

4 Kol, H. S., Özbay, G., Köse, L., & Kurt, S. (2010). Effects of some impregnation chemicals on combustion characteristics of laminated veneer lumber (LVL) produced with oak and poplar veneers. BioResources, 5(1), 70-80. Retrieved in 2022, July 01, from https://bioresources.cnr.ncsu.edu/BioRes_05/BioRes_05_1_0070_SahinKol_OKK_Impreg_Chem_Combus_Veneer_Oak_Poplar_727.pdf

5 Sandberg, D. (2016). Additives in wood products—today and future development. In A. Kutnar & S. S. Muthu (Eds.), Environmental impacts of traditional and innovative forest-based bioproducts (pp. 105-172). Singapura: Springer. http://dx.doi.org/10.1007/978-981-10-0655-5.

6 Chowdhury, Q., Ishiguri, F., Iizuka, K., Hiraiwa, T., Matsumoto, K., Takashima, Y., Yokota, S., & Yoshizawa, N. (2009). Wood property variation in Acacia auriculiformis growing in Bangladesh. Wood and Fiber Science, 41(4), 359-365.

7 Costa, M. A., & Del Menezzi, C. H. S. (2017). Effect of thermo-mechanical treatment on properties of parica plywoods (Schizolobium amazonicum Huber ex Ducke). Revista Árvore, 41(1), e410115. http://dx.doi.org/10.1590/1806-90882017000100015.

8 Schober, K.-U., Harte, A. M., Kliger, R., Jockwer, R., Xu, Q., & Chen, J.-F. (2015). FRP reinforcement of timber structures. Construction & Building Materials, 97, 106-118. http://dx.doi.org/10.1016/j.conbuildmat.2015.06.020.

9 Song, Y.-J., Hong, S.-I., Suh, J.-S., & Park, S.-B. (2017). Strength performance evaluation of moment resistance for cylindrical-LVL column using GFRP reinforced wooden pin. Wood Research, 62(3), 417-426. Retrieved in 2022, July 01, from http://www.woodresearch.sk/cms/strength-performance-evaluation-of-moment-resistance-for-cylindrical-lvl-column-using-gfrp-reinforced-wooden-pin/

10 Missanjo, E., & Matsumura, J. (2016). Wood density and mechanical properties of Pinus kesiya Royle ex Gordon in Malawi. Forests, 7(7), 135. http://dx.doi.org/10.3390/f7070135.

11 Miyoshi, Y., Kojiro, K., & Furuta, Y. (2018). Effects of density and anatomical feature on mechanical properties of various wood species in lateral tension. Journal of Wood Science, 64(5), 509-514. http://dx.doi.org/10.1007/s10086-018-1730-z.

12 Andor, K., Lengyel, A., Polgár, R., Fodor, T., & Karácsonyi, Z. (2019). Experimental and statistical analysis of formwork beams reinforced with CFRP. Periodica Polytechnica. Civil Engineering, 63(1), 184-191. http://dx.doi.org/10.3311/PPci.13057.

13 Arruda, L. M., & Del Menezzi, C. H. S. (2013). Effect of thermomechanical treatment on physical properties of wood veneers. International Wood Products Journal, 4(4), 217-224. http://dx.doi.org/10.1179/2042645312Y.0000000022.

14 Brol, J., & Wdowiak-Postulak, A. (2019). Old timber reinforcement with FRPs. Materials (Basel), 12(24), 4197. http://dx.doi.org/10.3390/ma12244197. PMid:31847239.

15 Korkut, D. S., Korkut, S., & Dilik, T. (2008). Effect of heat treatment on some mechanical properties of laminated window profiles manufactured using two types of adhesives. International Journal of Molecular Sciences, 9(4), 454-463. http://dx.doi.org/10.3390/ijms9040454. PMid:19325761.

16 Örs, Y., Atar, M., & Keskin, H. (2004). Bonding strength of some adhesives in wood materials impregnated with Imersol-Aqua. International Journal of Adhesion and Adhesives, 24(4), 287-294. http://dx.doi.org/10.1016/j.ijadhadh.2003.10.007.

17 Auriga, R., Gumowska, A., Szymanowski, K., Wronka, A., Robles, E., Ocipka, P., & Kowaluk, G. (2020). Performance properties of plywood composites reinforced with carbon fibres. Composite Structures, 248, 112533. http://dx.doi.org/10.1016/j.compstruct.2020.112533.

18 Bekhta, P., & Niemz, P. (2003). Effect of high temperature on the change in color, dimensional stability, and mechanical properties of spruce wood. Holzforschung, 57(5), 539-546. http://dx.doi.org/10.1515/HF.2003.080.

19 Bektaş, İ., Güler, C., & Baştürk, M. A. (2002). Principal mechanical properties of Eastern beech wood naturally grown in Andirin Northeastern Mediterranean region of Turkey. Turkish Journal of Agriculture and Forestry, 26(3), 147-154. Retrieved in 2022, July 01, from https://journals.tubitak.gov.tr/agriculture/vol26/iss3/6

20 Li, Y.-F., Xie, Y.-M., & Tsai, M.-J. (2009). Enhancement of the flexural performance of retrofitted wood beams using CFRP composite sheets. Construction & Building Materials, 23(1), 411-422. http://dx.doi.org/10.1016/j.conbuildmat.2007.11.005.

21 Lu, W., Ling, Z., Geng, Q., Liu, W., Yang, H., & Yue, K. (2015). Study on flexural behaviour of glulam beams reinforced by Near Surface Mounted (NSM) CFRP laminates. Construction & Building Materials, 91, 23-31. http://dx.doi.org/10.1016/j.conbuildmat.2015.04.050.

22 Derikvand, M., Kotlarewski, N., Lee, M., Jiao, H., & Nolan, G. (2019). Characterisation of physical and mechanical properties of unthinned and unpruned plantation-grown Eucalyptus nitens H. Deane & Maiden lumber. Forests, 10(2), 194. http://dx.doi.org/10.3390/f10020194.

23 Ministry of Supply and Services. (1996). No. Fo42-91/146-1996E - Development of composite glued laminated timber. Canada: Ministry of Supply and Services.

24 Gryc, V., & Horáček, P. (2007). Variability in density of spruce (Picea abies [L.] Karst.) wood with the presence of reaction wood. Journal of Forest Science, 53(3), 129-137. http://dx.doi.org/10.17221/2146-JFS.

25 Hill, C., Altgen, M., & Rautkari, L. (2021). Thermal modification of wood-A review: chemical changes and hygroscopicity. Journal of Materials Science, 56(11), 6581-6614. http://dx.doi.org/10.1007/s10853-020-05722-z.

26 Hlásková, L., Procházka, J., Novák, V., Čermák, P., & Kopecký, Z. (2021). Interaction between thermal modification temperature of spruce wood and the cutting and fracture parameters. Materials (Basel), 14(20), 6218. http://dx.doi.org/10.3390/ma14206218. PMid:34683809.

27 Johnsson, H., Blanksvärd, T., & Carolin, A. (2006). Glulam members strengthened by carbon fibre reinforcement, materials, and structure. Materials and Structures, 40(1), 47-56. http://dx.doi.org/10.1617/s11527-006-9119-7.

28 Kačíková, D., Kačík, F., Čabalová, I., & Ďurkovič, J. (2013). Effects of thermal treatment on chemical, mechanical and colour traits in Norway spruce wood. Bioresource Technology, 144, 669-674. http://dx.doi.org/10.1016/j.biortech.2013.06.110. PMid:23871194.

29 Kutnar, A., & Šernek, M., (2007). Densification of wood. Zbornik Gozdarstva in Lesarstva, 82, 53-62.

30 Sandberg, D., Kutnar, A., & Mantanis, G. (2017). Wood modification technologies - A review. iForest - Biogeosciences and Forestry, 10(6), 895-908. http://dx.doi.org/10.3832/ifor2380-010.

31 Silva, M. R., Machado, G. O., Brito, J. O., & Calil, C., Jr. (2013). Strength and stiffness of thermally rectified eucalyptus wood under compression. Materials Research, 16(5), 1077-1083. http://dx.doi.org/10.1590/S1516-14392013005000086.

32 Sviták, M., & Ruman, D. (2017). Tensile-shear strength of layered wood reinforced by carbon materials. Wood Research, 62(2), 243-252. Retrieved in 2022, July 01, from http://www.woodresearch.sk/cms/tensile-shear-strength-of-layered-wood-reinforced-by-carbon-materials/

33 Wang, J., Jiang, N., & Jiang, H. (2009). Effect of the evolution of phenol–formaldehyde resin on the high-temperature bonding. International Journal of Adhesion and Adhesives, 29(7), 718-723. http://dx.doi.org/10.1016/j.ijadhadh.2009.03.001.

34 Boonstra, M. J., Van Acker, J., Tjeerdsma, B. F., & Kegel, E. V. (2007). Strength properties of thermally modified softwoods and its relation to polymeric structural wood constituents. Annals of Forest Science, 64(7), 679-690. http://dx.doi.org/10.1051/forest:2007048.

35 Wang, J., Guo, X., Zhong, W., Wang, H., & Cao, P. (2015). Evaluation of mechanical properties of reinforced poplar laminated veneer lumber. BioResources, 10(4), 7455-7465. http://dx.doi.org/10.15376/biores.10.4.7455-7465.

36 Yapici, F., Esen, R., Yorur, H., & Likos, E. (2013). The effects of heat treatment on the modulus of rupture and modulus of elasticity of scots pine (Pinus Sylvestris L.) wood. NWSA-Technological Applied Sciences, 8(1), 1-6.

37 Bektaş, İ., Oruç, S., & Ak, A. K. (2016). Some technological properties of pedunculate oak wood grown in Hatay-Dörtyol region. Turkish Journal of Forestry, 17(2), 178-186. http://dx.doi.org/10.18182/tjf.55302.

38 Esteves, B. M., & Pereira, H. M. (2009). Wood modification by heat treatment: a review. BioResources, 4(1), 370-404. http://dx.doi.org/10.15376/biores.4.1.Esteves.

39 International Organization for Standardization - ISO. ISO 13061-17:2017 - Physical and mechanical properties of wood — Test methods for small clear wood specimens — Part 17: Determination of ultimate stress in compression parallel to grain. Geneva: ISO; 2017.

40 International Organization for Standardization - ISO. ISO 13061-2:2014 - Physical and mechanical properties of wood — Test methods for small clear wood specimens — Part 2: Determination of density for physical and mechanical tests. 2014. Geneva: ISO; 2014.

41 Wei, P., Wang, B. J., Zhou, D., Dai, C., Wang, Q., & Huang, S. (2013). Mechanical properties of poplar laminated veneer lumber modified by carbon fibre reinforced polymer. BioResources, 8(4), 4883-4898. http://dx.doi.org/10.15376/biores.8.4.4883-4898.

42 Sebera, V., Redón-Santafé, M., Brabec, M., Děcký, D., Čermák, P., Tippner, J., & Milch, J. (2019). Thermally modified (TM) beech wood: compression properties, fracture toughness and cohesive law in mode II obtained from the three-point end-notched flexure (3ENF) test. Holzforschung, 73(7), 663-672. http://dx.doi.org/10.1515/hf-2018-0188.

43 Tan, H., Ulusoy, H., & Peker, H. (2020). Antioxidant stone water (human/friendly environment) thermal (thermogravimetric-tga) combustion properties in biohazard (insect/fungus) wood. Polímeros, 30(2), e2020014. http://dx.doi.org/10.1590/0104-1428.00720.

44 Tan, H. (2021). Analysis of some top surface treatment materials with the artificial neural network method. Fresenius Environmental Bulletin, 30(11), 12421-12429.

45 Ulker, O., Aslanova, F., & Hiziroglu, S. (2018). Properties of thermally treated yellow poplar, southern pine, and eastern redcedar. BioResources, 13(4), 7726-7736. http://dx.doi.org/10.15376/biores.13.4.7726-7737.

46 Esteves, B., Graça, J., & Pereira, H. (2008). Extractive composition and summative chemical analysis of thermally treated eucalypt wood. Holzforschung, 62(3), 344-351. http://dx.doi.org/10.1515/HF.2008.057.

47 Figueroa, M. J. M., Moraes, P. D. D., & Maestri, F. A. (2015). Temperature and moisture content effects on compressive strength parallel to the grain of paricá. Ambiente Construído, 15(1), 17-27. http://dx.doi.org/10.1590/S1678-86212015000100003.

48 Morales-Conde, M. J., Rodríguez-Liñán, C., & Rubio-de Hita, P. (2015). Bending and shear reinforcements for timber beams using GFRP plates. Construction & Building Materials, 96, 461-472. http://dx.doi.org/10.1016/j.conbuildmat.2015.07.079.

49 Nadir, Y., Nagarajan, P., Ameen, M., & Arif, M. M. (2016). Flexural stiffness and strength enhancement of horizontally glued laminated wood beams with GFRP and CFRP composite sheets. Construction & Building Materials, 112, 547-555. http://dx.doi.org/10.1016/j.conbuildmat.2016.02.133.

50 Nairn, J. A. (2006). Numerical simulations of transverse compression and densification in wood. Wood and Fiber Science, 38(4), 576-591. Retrieved in 2022, July 01, from https://wfs.swst.org/index.php/wfs/article/view/2/2

51 Ulker, O., İmirzi, Ö., & Burdurlu, E. (2012). The effect of densification temperature on some physical and mechanical properties of Scots pine (PINUS SYLVESTRIS L.). BioResources, 7(4), 5581-5592. http://dx.doi.org/10.15376/biores.7.4.5581-5592.

52 Jirouš-Rajković, V., & Miklečić, J. (2019). Heat-treated wood as a substrate for coatings, weathering of heat-treated wood, and coating performance on heat-treated wood. Advances in Materials Science and Engineering, 2019, 8621486. http://dx.doi.org/10.1155/2019/8621486.

53 Khelifa, M., Lahouar, M. A., & Celzard, A. (2015). Flexural strengthening of finger-jointed Spruce timber beams with CFRP. Journal of Adhesion Science and Technology, 29(19), 2104-2116. http://dx.doi.org/10.1080/01694243.2015.1057395.

54 de la Rosa García, P., Escamilla, A. C., & García, M. N. G. (2013). Bending reinforcement of timber beams with composite carbon fibre and basalt fibre materials. Composites. Part B, Engineering, 55, 528-536. http://dx.doi.org/10.1016/j.compositesb.2013.07.016.

55 Kol, H. Ş., Keskin, S. A., & Vaydoğan, K. G. (2018). Effect of heat treatment on the mechanical properties and dimensional stability of beech wood. Journal of Advanced Technology Sciences, 6(3), 820-830.

56 Glišović, I., Stevanović, B., Todorović, M., & Stevanović, T. (2016). Glulam beams externally reinforced with CFRP plates. Wood Research, 61(1), 141-154. Retrieved in 2022, July 01, from http://www.woodresearch.sk/wr/201601/14.pdf

57 Izekor, D. N., Fuwape, J. A., & Oluyege, A. O. (2010). Effects of density on variations in the mechanical properties of plantation grown Tectona grandis wood. Archives of Applied Science Research, 2(6), 113-120.

58 Hidayat, W., Jang, J. H., Park, S. H., Qi, Y., Febrianto, F., Lee, S. H., & Kim, N. H. (2015). Effect of temperature and clamping during heat treatment on physical and mechanical properties of okan wood. BioResources, 10(4), 6961-6974. Retrieved in 2022, July 01, from https://bioresources.cnr.ncsu.edu/resources/effect-of-temperature-and-clamping-during-heat-treatment-on-physical-and-mechanical-properties-of-okan-cylicodiscus-gabunensis-taub-harms-wood/

59 Shukla, S. R., & Kamdem, D. P. (2008). Properties of laminated veneer lumber (LVL) made with low density hardwood species: effect of the pressure duration. Holz als Roh- und Werkstoff, 66(2), 119-127. http://dx.doi.org/10.1007/s00107-007-0209-1.

60 Hiziroglu, S. (2009). Laminated veneer lumber (LVL) as a construction material. Food Technology Fact Sheet, FAPC-163, 4.

61 Kiaei, M., Bakhshi, R., Saffari, M., & Golkari, S. (2015). The within-tree variation in wood density and mechanical properties and their relationship in juniperus polycarpos. Journal of Forest and Environmental Science, 31(4), 267-271. http://dx.doi.org/10.7747/JFES.2015.31.4.267.

62 Kučerová, V., Lagaňa, R., Výbohová, E., & Hýrošová, T. (2016). The effect of chemical changes during heat treatment on the color and mechanical properties of fir wood. BioResources, 11(4), 9079-9094. http://dx.doi.org/10.15376/biores.11.4.9079-9094.

63 Kubojima, Y., Okano, T., & Ohta, M. (2000). Bending strength and toughness of heat-treated wood. Journal of Wood Science, 46(1), 8-15. http://dx.doi.org/10.1007/BF00779547.

64 Majano-Majano, A., Hughes, M., & Fernandez-Cabo, J. L. (2012). The fracture toughness and properties of thermally modified beech and ash at different moisture contents. Wood Science and Technology, 46(1), 5-21. http://dx.doi.org/10.1007/s00226-010-0389-4.

65 Kliger, I. R., Haghani, R., Brunner, M., Harte, A. M., & Schober, K.-U. (2016). Wood-based beams strengthened with FRP laminates: improved performance with pre-stressed systems. Holz als Roh- und Werkstoff, 74(3), 319-330. http://dx.doi.org/10.1007/s00107-015-0970-5.

66 Pelit, H., & Emiroglu, F. (2021). Density, hardness and strength properties of densified fir and aspen woods pretreated with water repellents. Holzforschung, 75(4), 358-367. http://dx.doi.org/10.1515/hf-2020-0075.
 

64808982a953956da51f6579 polimeros Articles
Links & Downloads

Polímeros: Ciência e Tecnologia

Share this page
Page Sections