PREFACE The 11th International Scientific Conference of Civil and Environmental Engineering for the PhD. students and young scientists below 35 years under auspices of the dean of the Civil ...Engineering Faculty of the Technical University of Košice assoc. prof. Peter Mésároš. The event was held in Tatranské Matliare, the High Tatras, Slovakia on 25th - 26th of April 2019. The traditional meeting of PhD. students, their supervisors and young scientists working in the field of civil engineering and environmental science was organised by the Faculty of Civil Engineering of the Technical University of Košice, Slovakia. The Young Scientist 2019 offered an international platform for the dissemination of original research results; provide a pleasant environment to present new, great ideas of young researchers and discovered advances in the field of civil engineering and related interdisciplinary topics. The conference provided an opportunity for PhD. students and young researchers to discussed scientific topics and research results of topical issues in civil engineering, to share their knowledge and experiences, to collaborate in innovative designs and proposals. In addition, the valuable presentations were extended by a social program including the interesting field trip in the High Tatras. The Conference assembled more than 50 delegates, from the Slovakia (Technical University of Košice, Slovak University of Technology in Bratislava), the Czech Republic (Czech Technical University in Prague; Brno University of Technology, Mendel University in Brno, VSB-Technical University of Ostrava), from the Croatia (Josip Juraj Strossmayer University of Osijek) and from the Poland (Cracow University of Technology of Cracow) including PhD. students and other representatives from the universities. The scientific contributions involved a wide range of research fields: Building Physics and Services, Sustainable Architecture and Energy Efficiency, Statics, Dynamics and Modeling, Structural Engineering and Bridges, Transport and Geotechnical Engineering, Construction Technology, Organization and Management, Construction Economics, Marketing and Management, Building Information Modeling, Innovations in Construction Design and Technology, Environmental Engineering, Healthy Indoor Environment, Material Engineering and Recycling as well as Sustainable Water Management. Forty contributions have been selected to be published in the volume of IOP Conference Series: Materials Science and Engineering. The organizing committee appreciates the enormous work of the both the editorial board and reviewers in the preparation of this volume. Many thanks also to all authors for their flexibility and meeting deadlines. prof. Dušan Katunský assoc. prof. Peter Mésároš assis. prof. Vlasta Ondrejka Harbul'áková