Analysis of Physical-Mechanical Characteristics and Advantages of Bakelite Plywood as Constructional Material


Dmitry D. Koroteev,Farid A. Boytemirov,



Bakelite Plywood ,Orthotropic Material,Physical-Mechanical Characteristics,Adhesive Joint ,Modulus Of Elasticity,


Waterproof plywood as product of the wood reprocessing has the number of advantages for civil engineering, such as: ability to form curved surface; transportability and possibility of quick erection; relatively large size and similar physical-mechanical properties in lengthwise and crosswise direction; resistance against chemical and biological influence. Bakelite plywood is one of the prospective types of waterproof plywood. The effective introduction of bakelite plywood into civil engineering slows down because of insufficient knowledge of influence of the range of factors on strength and deformability of the bakelite plywood structures. Taking into account the above, the research work is devoted to study physical-mechanical properties of bakelite plywood as orthotropic material. The aim of the research is to obtain the results, which can be used for design of the bakelite plywood structures. Samples with size 30x30x120 mm, made by bonding the required number of 9-layers plywood sheets with the use of phenol-formaldehyde glue, were used to determine mechanical-physical characteristics of bakelite plywood. The sheets with thickness of 10 mm were used in the research work. Every sample was tested by sixfold loading and unloading with measurement of deformations in the process of loading. The research results of physical-mechanical properties of bakelite plywood as orthotropic material are shown in the article. They are necessary for practical calculations of tensions in the adhesive joints by methods of elastic theory of anisotropic materials. The possibility of using the obtained research results for practical calculations is shown on the example of the overlapping adhesive joint.


I.Aicher S., Hirsch M., Christian Z. (2016) Hybrid cross-laminated timber plates with beech wood cross-layers. Construction and Building Materials, vol. 124: 1007-1018.

II.Aydin I. (2004) Activation of wood surfaces for glue bonds by mechanical pre-treatment and its effects on some properties of veneer surfaces and plywood panels. Applied Surface Science, vol. 233: 268-274.

III.Bekhta P., Hiziroglu S., Shepelyuk O. (2009) Properties of plywood manufactured from compressed veneer as building material. Materials & Design, vol. 30(4): 947-953.

IV.Candan Z., Akbulut T. (2014) Nano-engineered plywood panels: Performance properties. Composites Part B: Engineering, vol. 64: 155-161.

V.Demirkir C., Özsahin S., Aydin I., Colakoglu G. (2013) Optimization of some panel manufacturing parameters for the best bonding strength of plywood. International Journal of Adhesion and Adhesives, vol. 46: 14-20.

VI.Fang L., Chang L., Guo W., Chen Y., Wang Z. (2014) Influence of silane surface modification of veneer on interfacial adhesion of wood–plastic plywood. Applied Surface Science, vol. 288: 682-689.

VII.Frolovs G., Rocens K., Janis S. (2017) Shear and Tensile Strength of Narrow Glued Joint Depending on the Grain Direction of Plywood Plies. Procedia Engineering, vol. 172: 292-299.

VIII.Khasanshin R.R., Safin R.R., Razumov E.Y. (2016) High Temperature Treatment of Birch Plywood in the Sparse Environment for the Creation of a Waterproof Construction Veneer. Procedia Engineering, vol. 150: 1541-1546.

IX.Kim J., Park D., Lee C., Park K., Lee J. (2015) Effects of cryogenic thermal cycle and immersion on the mechanical characteristics of phenol-resin bonded plywood. Cryogenics, vol. 72(1): 90-102.

X.Koroteev D.D., Boytemirov F.A., Stashevskaya N.A. (2017) The strength research of the adhesive joints of sheet structures. Journal of Fundamental and Applied Sciences, vol. 9(7S): 414-424.

XI.Lei H., Du G., Wu Z., Xi X., Dong Z. (2014) Cross-linked soy-based wood adhesives for plywood. International Journal of Adhesion and Adhesives, vol. 50: 199-203.

XII.Li W., Bulcke J., Mannes D., Lehmann E., Windt I., Dierick M., Acker J. (2014) Impact of internal structure on water-resistance of plywood studied using neutron radiography and X-ray tomography. Construction and Building Materials, vol. 73: 171-179.

XIII.Lokaj A., Vavrusova K. (2017) Longitudinal bonded joints of timber beams using plywood and LVL plates. Procedia Structural Integrity, vol. 5: 1363-1369.

XIV.Luo J., Li X., Zhang H., Gao Q., Li J. (2016) Properties of a soybean meal-based plywood adhesive modified by a commercial epoxy resin. International Journal of Adhesion and Adhesives, vol. 71: 99-104.

XV.Moubarik A., Pizzi A., Allal A., Charrier F., Charrier B. (2009) Cornstarch and tannin in phenol–formaldehyde resins for plywood production. Industrial Crops and Products, vol. 30(2): 188-193.

XVI.Muttil N., Ghanta Ravichandra, Bigger S.W. Thorpe G.R., Dorbha Shailaja, Swadesh Kumar Singh (2014) Comparative Study of Bond Strength of Formaldehyde and Soya based Adhesive in Wood Fiber Plywood. Procedia Materials Science, vol.6: 2-9.

XVII.Tan H., Zhang Y., Weng X. (2011) Preparation of the Plywood Using Starch-based Adhesives Modified with blocked isocyanates. Procedia Engineering, vol. 15: 1171-1175.

XVIII.Tang L., Zhang Z., Qi J., Zhao J., Feng Y. (2011) The preparation and application of a new formaldehyde-free adhesive for plywood. International Journal of Adhesion and Adhesives, vol. 31(6): 507-512.

XIX.Toksoy D., Çolakoğlu G., Aydin I., Çolak S., Demirkir C. (2006) Technological and economic comparison of the usage of beech and alder wood in plywood and laminated veneer lumbermanufacturing. Building and Environment, vol. 41(7): 872-876.

XX.Windt I., Li W., Bulcke J., Acker J. (2018) Classification of uncoated plywood based on moisture dynamics. Construction and Building Materials, vol. 158: 814-822.

XXI.Yoshihara H. (2009) Edgewise shear modulus of plywood measured by square-plate twist and beam flexure methods. Construction and Building Materials, vol. 23(12): 3537-3545.

XXII.Zhou J., Zhao W., Tang K., Peng W. (2016) Seismic performance of square, thin-walled steel tube/bamboo plywood composite hollow columns with binding bars. Soil Dynamics and Earthquake Engineering, vol. 89: 152-162.

View | Download