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Elastic Critical Force for Torsional-Flexural Buckling of Metal Members with Mono-Symmetric Cross-Sections KOVAC Michal1, a * 1Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Department of Steel and Timber Structures, Radlinskeho 11, 813 68 Bratislava, Slovakia amichal.kovac@stuba.sk Keywords: torsional-flexural buckling, elastic critical force, thin-walled metal member, mono-symmetric open cross-section, approximate method Abstract.

Introduction The growing need for strengthening, rehabilitating, and seismic retrofitting existing reinforced concrete (RC) and masonry structures has led the civil engineering community and construction industry to develop new innovative materials.

Toledo Filho1,i 1Programa de Engenharia Civil (PEC/COPPE), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil 2Programa de Pós-graduação em Arquitetura (PROARQ/FAU), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil 3Politecnico di Milano, Architecture, Built Environment and Construction Engineering (ABC) Department, Via Ponzio 31, 20133 Milano, Italy 4Furnas Centrais Elétricas a*Corresponding author: lucas.caldas@fau.ufrj.br, bcarol.goulart@numats.coc.ufrj.br, cfrancesco.pittau@polimi.it, darthur.araujo@coc.ufrj.br, emariana.franco@coc.ufrj.br, fnicol@furnas.com.br, itoledo@coc.ufrj.br Keywords: Bio-concrete; LCA; Biogenic carbon; Brazil; India; South Africa; China.

Influence of ANO3 and ANO3×nH2O Nitrates on the Deformation Properties of Aluminosilicate Adhesives for Wood Products and Structures GUZII Sergii1,a*, ROMANIUK Volodymyr2,b, LAPOVSKA Svitlana3 c, SEMKIV Oleg1,d, BAZHELKA Ihar4,e, 1National University of Civil Defence of Ukraine, 94, Chernishevska str., Kharkiv Ukraine, 61023 2National University of Water and Environmental Engineering, 11, Soborna str., Rivne, 33024, Ukraine 3State enterprise “Ukrainian research, project planning and design institute of building materials and products “NIISMI”, 68, Kostyantynivska str, Kyiv, Ukraine, 04080 4Belarusian State Technological University, 13a, Sverdlova str., Minsk, Republic of Belarus, 220006 aguziy@nuczu.edu.ua, bromaniuk_@ukr.net, clabbmsp@ukr.net, dsemkiv@nuczu.edu.ua, ebikbstu@mail.ru Keywords: aluminosilicate adhesive, deformation, nitrate salts, elastic modulus, load, shear modulus, wood products and structures Abstract.

Shear Assessment of Concrete Bridge Deck Slabs VIDA Radoslav1, a *, HALVONIK Jaroslav1, b 1Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Department of Concrete Structures and Bridges, Radlinskeho 11, SK-81005 Bratislava, Slovakia aradoslav.vida@stuba.sk, bjaroslav.halvonik@stuba.sk Keywords: reinforced concrete, bridge deck slab, shear assessment Abstract.

Maniruzzaman1,e 1Electronics and Communication Engineering Discipline, Khulna University, Khulna 9208, Bangladesh ashuvroece07@gmail.com, bshamim@ece.ku.ac.bd, cmth@ece.ku.ac.bd, dmahbub.hossain@ece.ku.ac.bd, em_m_zaman@ece.ku.ac.bd Keywords: Autonomous, hexacopter, multi-functional drone, pesticides spraying, surveillance & monitoring, aerial shooting.
Although drones were initially developed for military use, they are now widely used for a variety of civil purposes: filmmaking [2], mapping [3,4], product delivery [5,], weather monitoring [6,7], disaster management [8–13], fire-fighting [14], surveillance [10–12,19], and agriculture [15–18].

Testing of photocatalytic activity of self-cleaning surfaces Urška Lavrenčič Štangar1,a, Marko Kete1,b, Urh Černigoj1,c, Vilma Ducman2,d 1Laboratory for Environmental Research, University of Nova Gorica, Vipavska 13, 5001 Nova Gorica, Slovenia 2Slovenian National Building and Civil Engineering Institute, Dimičeva 12, 1000 Ljubljana, Slovenia aurska.lavrencic@ung.si, bmarko.kete@ung.si, curhcernigoj@gmail.com, dvilma.ducman@zag.si Keywords: current and new testing methods, TiO2 thin film, photocatalysis, terephthalic acid, fluorescence, standardization Abstract.

[8]J.R.Mackechnie and M.G.Alexander, "Exposure of Concrete in Different Marine Environments" Journal of Materials in Civil Engineering, pp.41～44, Feb. 1997

.// Bulletin of the Central regional branch of the Russian Academy of architecture and civil engineering: collection of scientific works.St. / RAASN, - Voronezh-Tambov, 2009. - P. 143-148

Optimized Cooling Strategies for Bainitic Forging Steels Gernot Eggbauer1,a* and Bruno Buchmayr1,b 1Department of Product Engineering, Chair of Metalforming, Montanuniversitaet Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria agernot.eggbauer@unileoben.ac.at, bbruno.buchmayr@unileoben.ac.at Keywords: Forged Parts, Bainite, Heat Treatment, Isothermal Transformation, Continuous Transformation, Mechanical Properties.
Civil Mech.