employee
Voronezh, Russian Federation
employee
Voronezh, Russian Federation
Voronezh, Russian Federation
This paper shows the stages of developing an eco-friendly composite composition (PKS) for impregnating railway sleepers made of birch wood, which has high water and moisture resistance. Used oils were selected for the study: mineral engine oil, transmission oil, sunflower oil, corn oil. The used oils were compared with the oil liquid ZHTK-2, which is widely used for impregnating railway sleepers, according to the following indicators: the content of the impregnating composition; water absorption and swelling of the impregnated wood after 30 days of standing in water in the radial and tangential directions. According to the sum of the obtained indicators, the spent mineral engine oil (OMM) was chosen as the basis of the PKS, flour of various types of wood (coniferous or deciduous), flour of oak, birch or pine bark was proposed as a filler. The greatest effect was obtained when introducing coniferous wood flour (MDH) in the amount of 1% of the mass of the OMM into the OMM. At the same time, the content of the impregnating composition in the wood increases from 43 to 70%, water absorption decreases (by 63.8%) and the swelling of the wood in the tangential and radial directions. When comparing the target values for the oil composition (OMM+MDX) and the oil liquid ZHTK-2, it was found that the content of the impregnating composition is 10.6% higher than for ZHTK-2, water absorption is reduced by 6.8%.
compositional composition, railway sleepers, tangential direction, radial direction
1. Rehder, G.1991: Die Holzschwelle im schienen gebundenen Nahverkehr. Die Holzschwelle Nr. 102: 17-26
2. Fatigue of steel-fibre-reinforcedconcrete prestressed railway sleepers. Parvez, Ahsan; Foster, Stephen James. ENGINEERING STRUCTURES VOL:141 pp.: 241-250.
3. Braun, M. Wooden structures for the railways [Article Holzbauten für die Eisenbahn] (2005) Eisenbahningenieur, 56 (6), pp. 70-74.
4. Du, Q.P. & Geissen, A. Holz als Roh-und Werkstoff (1994) 52: 169. https://doi.org/10.1007/BF02615215
5. Anderson, W.F. and Fair, P. (2008), “Behavior of railroad ballast under monotonic and cyclic loading”, J. Geotech. Geoenviron. Eng., 134(3), 316-327
6. Yella S, Ghiamati S, Dougherty M (2009) Condition monitoring of wooden railway sleepers using time-frequency techniques and pattern classification. In: Systems, Man and Cybernetics, 2009. SMC 2009. IEEE International Conference on, Texas, USA, pp 4164-4169
