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Emil Soból, Wojciech Sas and Alojzy Szymański

-68. [8] LI X., Recycling and reuse of waste concrete in China. Part I. Material behaviour of recycled aggregate concrete, Resources, Conservation and Recycling, 2008, 53(1), 36-44, DOI: 10.1016/j.resconrec.2008.09.006. [9] LIMBACHIYA M.C., LEELAWAT T., DHIR R.K., Use of recycled concrete aggregate in high-strength concrete, Materials and Structures, 2000, 33(9), 574-580. [10] MOAYED R.Z., ALIZADEH A., Effects of shear box size on the strength for different type of silty sands in direct shear tests, Unsaturated Soils: Theory and Practice

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Ingars Reinholds, Iveta Pugajeva and Vadims Bartkevičs

”, Microchemical Journal, 2013, vol. 107, pp. 165-171. [10] X. Liang, B. Chen, X. Nie, Z. Shi, X., Li, X. Huang, “The Distribution and Partitioning of Common Antibiotics in Water and Sediment of the Pearl River Estuary, South China”, Chemosphere, 2013, vol. 92, N11, pp. 1410-1416. [11] J. Rossmann, S. Schubert, R. Gurke, R. Oertel, W. Kirch, “Simultaneous Determination of Most Prescribed Antibiotics in Multiple Urban Wastewater by SPE-LC-MS/MS

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Andrzej Wałęga, Dariusz Młyński and Katarzyna Wachulec

REFERENCES [1] A jmal M., W aseem M., W i S., K im T.-W., Evolution of a parsimonious rainfall–runoff model using soil moisture proxies. J. of Hydrology, 2015, 530, 623–633. [2] B altas E.A., D ervos N.A., M imikou M.A., Technical Note: Determination of the SCS initial abstraction ratio in an experimental watershed in Greece , Hydrol. Earth Syst. Sci., 2007, 11, 1825–1829. [3] B anasik K., W oodward D.E., Empirical determination of runoff Curve Number for a small agriculture catchment in Poland , Proceedings of the 2nd Joint Federal

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Zenon Szypcio

Liquafaction Phenomena, Bohun, Germany, March 31th-April 2nd 2004. [12] HONG NAM N., KOSEKI J., Modelling quasi-elastic deformation properties of sand, Deformation Characteristics of Geomaterials, IS - Lyon 2003, 275-283. [13] JEWELL R.A., WROTH C.P., Direct shear tests on reinforced sand, Geotechnique, 1987, 37, No. 1, 53-68. [14] LIKOS W.J., WAYLLACE A., GODT J., LU N., Modified Direct Shear Apparatus for Unsaturated Sands at Low Suction and Stress, Geotechnical Testing Journal, 2010, 33, No. 4, 286-298. [15

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Silvija Strikauska, Andrejs Berzins, Lauris Arbidans, Agnese Kukela, Olga Muter and Maris Klavins

. 8. Beitāne, L., Ese, I., Koršuvova, T., et al. Estimation of chemical compounds in detergents and cosmetics used for daily needs. In: Int. Conf. “Eco-Balt 2008”, Latvia, Riga, 15−16. May,Riga: Integro Plus, p. 56. 9. Stikans, I., Kalnina, D., Busmane, L. Peristant Organic Pollutants and Lesser Known Problems in the environment, Material Science and Applied Chemistry. no. 22, 2010, pp. 78−82. 10. Holt, M.S., Mitchell, G.C., Watkinson, R.J. The environmental chemistry, fate and effects of nonionic surfactants. In: The handbook of

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Ilmārs Zālīte, Gundega Heidemane, Aija Krūmiņa, Dzintra Rašmane and Mikhail Maiorov

–Zn ferrite,” Powder Technology , vol. 193, no. 2, pp. 150–153, Jul. 2009. [32] F. Li, J. Liu, D. G. Evans, and X. Duan, “Stoichiometric Synthesis of Pure MFe 2 O 4 (M = Mg, Co, and Ni) Spinel Ferrites from Tailored Layered Double Hydroxide (Hydrotalcite-Like) Precursors,” Chemistry of Materials , vol. 16, no. 8, pp. 1597–1602, Apr. 2004. [33] J. Grabis and I. Zalite, “Nanosized Powders of Refractory Compounds for Obtaining of Fine-Grained Ceramic Materials,” Materials Science

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Jan Zamorowski and Grzegorz Gremza

steel towers (trestles) with the height of 4.5 m, characterised by a working stroke of 2.6 m, were used ( Figure 1 ). The tower consisted of two-chord internal (i.e. at the tank side) branches arranged from the HEA sections and two-chord external branches made from the C sections. Branches were linked together by the use of lacings placed in the chord planes. Chords of the internal branch of the tower were connected using a base plate and two beams. One of these beams was located at about two-thirds of the tower height, and the second one made a connection of chords

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Juris Burlakovs, Rūta Ozola, Juris Kostjukovs, Ivars Kļaviņš, Oskars Purmalis and Māris Kļaviņš

References 1. Satkūnas, J. (ed.) International Conference ProGEO WG Northern Europe, Papile, Venta Regional Park, September 10-12, 2008, Conference materials, Excursion Guide, Vilnius, Lithuanian Geological Survey. 2. Rinks, E. Pulvernieku juras formācijas māli. Latvijas PSR Zinātņu Akadēmijas Ģeoloģijas un ģeogrāfijas institūts. 1947, Raksti I, vol. 1, pp. 235-248. 3. Eiduks, J. Pētījumi par māliem līdz 1946. gadam. Latvijas PSR Zinātņu Akadēmijas Ģeoloģijas un ģeogrāfijas institūts. Raksti I, 1947, Nr. 1, 223

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Tomasz Strzelecki, Anna Uciechowska-Grakowicz, Michał Strzelecki, Eugeniusz Sawicki and Łukasz Maniecki

the main water-bearing horizon and for the body of the earth dam ( Fig. 3 ) k = 2.2 * 10-4 m/s – for cohesive Holocene formations present in the area of the reservoir k = 1 * 10-8 m/s – for gravel columns on which certain segments of the dam are founded k = 1 * 10-5 m/s – the layer of silts, interpreted as Tertiary and found below the aforementioned formations, was accepted to be non-permeable. 3 Mathematical model A 3D hydraulic model of seepage with a free or constrained water table was applied for simulations. A