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Arkadiusz Denisiewicz, Krzysztof Kula, Tomasz Socha and Grzegorz Kwiatkowski

REFERENCES 1. Denisiewicz A., Kuczma M.: Two-scale modelling of reactive powder concrete. Part III: experimental tests and validation , Engineering Transactions, 63 , 1, (2015), 55-76. 2. Kaszyńska M.: BWW: Możliwości, cechy, zastosowania , XVII Ogólnopolska Konferencja Warsztat Pracy Projektanta Konstrukcji, Ustroń, 2002. 3. Ma J., Orgass F., Dehn F., Schmidt D., Tue N.V.: Comparative Investigations on Ultra-High Performance Concrete with and without Coarse Aggregates , International Symposium on Ultra High Performance Concrete, Kassel

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Arkadiusz Denisiewicz, Tomasz Socha, Krzysztof Kula and Marcin Pasula

REFERENCES 1. Denisiewicz A., Kuczma M.: Two-scale modelling of reactive powder concrete. Part III: experimental tests and validation , Engineering Transactions, 63 , 1, (2015), 55-76. 2. Fish J., Yu Q.: Two-scale damage modeling of brittle composites , Composites Science and Technology, 61 (2001), 2215–2222. 3. Orgass M., Klug Y.: Fibre Reinforced Ultra-High Strength Concretes , International Symposium on Ultra High Performance Concrete, Kassel, Germany, 2004. 4. Richard P., Cheyrezy M., Composition of Reactive Powder Concretes

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Wanda Kokoszka, Izabela Skrzypczak and Krzysztof Wilk


The Miocene deposits of the Carpathian Foredeep are relatively poorly recognized in geotechnical terms. The article analyzes the properties of the Krakowiec clays of the Przemyśl region, in particular physical and deformation parameters. In this part of the Carpathian Foredeep, clay usually occurs at considerable depth under younger Quaternary deposits. Particular attention was paid to the structural characterization of the tested samples. Structural heterogeneity of the studied clay, noticeable already at the stage of macroscopic studies, causes difficulties in conducting laboratory tests of strength parameters, especially the angle of internal friction and cohesion. The specific, layered, claysilt structure may cause difficulties in assessing load-bearing capacity and stability of the ground made of this type of soil. The unusual structure should draw attention of the contractors of geological-engineering and geotechnical documentation and encourage them to check mechanical properties by testing material with direct methods. An important issue is also forecasting changes in strain parameters in relation to the estimation of the effects of settlements of engineering structures.

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Clara Pinto and Carlos Eduardo Mady

REFERENCES 1. B. Sandnes, J. Rekstad.: A photovoltaic/thermal (PV/T) collector with a polymer absorber plate. Experimental study and analytical model . Sol. Energy, vol. 72, no. 1, pp. 63–73, 2002. 2. G. Kosmadakis et al.: Experimental testing of a low-temperature organic Rankine cycle (ORC) engine coupled with concentrating PV/thermal collectors: Laboratory and field tests , Energy, vol. 117, pp. 222–236, 2016. 3. CRESESB - Reference Center for Solar and Wind Power Energy Sérgio S. Brito.: Solar Potential - SunData , 2018. [Online

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Jijo James, Archana James, Arun Kumar, Elumalai Gomthi and Karunakaran Kamal Prasath

organic soil. Int. J. Electrochem. Sci. 6, 1277–1293. [21] Azhar, ATS. et al. 2018. The Physical Behavior of Stabilised Soft Clay by Electrokinetic Stabilisation Technology. J. Phys. Conf. Ser. 995, 1–10. [22] Mohamedelhassan, E and Shang, JQ 2003. Electrokinetics-generated pore fluid and ionic transport in an offshore calcareous soil. Can. Geotech. J. 40,1185–1199. [23] Chien, S, Ou, C and Lee, Y 2010. A novel electroosmotic chemical treatment technique for soil improvement. Appl. Clay Sci. 50, 481–492. [24] BIS, IS 2720 Methods of Test for

Open access

Andrzej Jędrczak

agents for food waste composting, Waste Management, 29 (2009) 197-203. 8. Zhou H., Meng Y.Q., Long A.H., Li Q.H., and Zhang Y.G.: An overview of characteristics of municipal solid waste fuel in China: physical, chemical composition and heating value. Renew. Sustain. Energy Rev., 46 (2014) 107-122. 9. Jędrczak A.: Stan i prognoza rozwoju instalacji MBP w Polsce . Stan i prognoza rozwoju instalacji MBP w Polsce. VI Konferencja Mechaniczno-Biologiczne Przetwarzanie Odpadów, 7-9 maja 2013 r., Elbląg. Wyd. Abrys. Perfekt Druk, Poznań. s. 101-110. ISBN: 83

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Marlena Piontek and Wanda Czyżewska

species indigeous to lake affected by cyanobacterial blooms, Oceanological and Hydrobiological Studies, 41, 4 (2012) 53-65. 35. Pérez-Morales A., Sarma S.S., Nandini S.: Feeding and filtration rates of zooplankton (rotifers and cladocerans) fed toxic cyanobacterium (Microcystis aeruginosa), Journal of Environmental Biology, 35 (2014) 1013-1020. 36. Piontek M.: Toxicity assessment of 28 mineral and organic chemical compounds on the basis of test with Daphnia magna Straus, Environmental Engineering, 5 (1997) 49-59. 37