Ásványi és más építési eredetű hulladék anyagokból készített hőszigetelő kompozitok műszaki jellemzésének néhány kérdése: Some questions of qualifying heat insulating composites made of construction and mineral wastes

Partial utilization of wastes produced by modern human society can reduce amount of disposed waste, furthermore saleable products can be produced. Heat insulating tiles can be made of certain construction wastes as aggregate and solidified fly ash from coal fired power plants as binding agent. Certain wastes such as saw dust, wooden chips, expanded polystyrene granules, polyurethane, etc. can be used as aggregates of the composites. Composite construction materials made of wastes must be qualified as any other materials not containing waste components. If heat insulating blocks are examined, mostly their thermal, fire safety and mechanical properties must be examined. Especially for polymer waste base material as they generate poisoning and sometimes carcinogenic gases while burning. Basic aspects of this qualification are revised in this paper. This is mostly based on the construction materials and rock mechanics topics which are parts of educating mining engineering students at Institution of Mining and Geotechnical Engineering, University of Miskolc. Furthermore laboratories of other institutions of Faculty of Earth Science and Engineering mostly of Institution of Raw Materials Preparation and Environmental Processing

CAREER: Innovative Experimental Mechanics for Heterogeneous Construction Materials

The primary theme of this career development plan is to promote, advance, and apply innovative experimental analysis techniques to heterogeneous construction materials. This theme applies to both the research and the educational components of the plan. Concrete and portland cement-based materials are the focus here, but many of the concepts and techniques developed will be applicable to wood, rock, composites, and other materials with a heterogeneous microstructure. The objective of the research is to quantify specific microstructural damage and failure mechanisms in cement-based materials through advanced experimentation and data analysis. In order for there to be significant advances in our ability to model and predict failure mechanisms, we must have a quantitative understanding of the physical microstructural processes involved. The research addresses this need for quantitative microstructural property versus performance data. The overall objective of the educational work is to update experimental mechanics and data analysis treatment in the undergraduate and graduate civil engineering curriculum, and to highlight the role of mechanics and materials in the different civil engineering subdisciplines. This objective will be realized through the integration of new classroom and laboratory modules into existing undergraduate and graduate courses. The cornerstone of the education program will be an innovative freshman level construction materials course in which the common themes of problem analysis and design are introduced to new engineering students using materials as the vehicle. The laboratory component of this course will be designed to reveal relationships between the material\u27s microstructure and performance properties. The link between the research and education components is the innovative use of the laboratory. The ease of numerical simulations has in varying degrees altered the use of experimental analysis in both education and research. The goal of this workplan is therefore to emphasize the importance to mechanics and materials of working in real rather than virtual laboratories. As this work is multidisciplinary, collaborations with experts in digital image processing, cement microstructure and x-ray physics and planned

Proceedings of the 8th International Conference on Civil Engineering

This open access book is a collection of accepted papers from the 8th International Conference on Civil Engineering (ICCE2021). Researchers and engineers have discussed and presented around three major topics, i.e., construction and structural mechanics, building materials, and transportation and traffic. The content provide new ideas and practical experiences for both scientists and professionals

Learning mechanics of materials by doing models

[EN] Mechanics of Materials is a discipline taught to the second-year students in the Bachelor Degree of Mechanical Engineering at Universitat Politècnica de València, Alcoi Campus. The teaching-learning process is focused on three main aspects: theory, practice, and numerical simulations. There are several experiments designed to better understand the mechanical behaviour of the materials that are present in buildings and machines. This paper explains the application of another hands-on methodology that has been included in the course. It consists of completing the process by constructing or prototyping scale models which help the students to understand how the structures work in real life. The results of the experience allow us to consider that learning by doing has supposed a significant step in the comprehension of the Mechanics of Materials and the students have showed a positive attitude towards this activity. Not only by constructing models, but the fact that their construction is blended with other active methodologies, contribute to enhance the motivation in learning the subject.Montava-Belda, I.; Juliá Sanchis, E.; Gadea Borrell, JM.; Segura Alcaraz, JG. (2021). Learning mechanics of materials by doing models. EDULEARN Proceedings (Internet). 806-811. https://doi.org/10.21125/edulearn.2021.0218S80681

Proceedings of the 8th International Conference on Civil Engineering

This open access book is a collection of accepted papers from the 8th International Conference on Civil Engineering (ICCE2021). Researchers and engineers have discussed and presented around three major topics, i.e., construction and structural mechanics, building materials, and transportation and traffic. The content provide new ideas and practical experiences for both scientists and professionals

Mechanics of a Plant in Fluid Flow

Plants live in constantly moving fluid, whether air or water. In response to the loads associated with fluid motion, plants bend and twist, often with great amplitude. These large deformations are not found in traditional engineering application and thus necessitate new specialised scientific developments. Studying Fluid-Structure Interactions (FSI) in botany, forestry and agricultural science is crucial to the optimisation of biomass production for food, energy, and construction materials. FSI are also central in the study of the ecological adaptation of plants to their environment. This review paper surveys the mechanics of FSI on individual plants. We present a short refresher on fluids mechanics then dive in the statics and dynamics of plant-fluid interactions. For every phenomenon considered, we present the appropriate dimensionless numbers to characterise the problem, discuss the implications of these phenomena on biological processes, and propose future research avenues. We cover the concept of reconfiguration while considering poroelasticity, torsion, chirality, buoyancy, and skin friction. We also cover the dynamical phenomena of wave action, flutter, and vortex-induced vibrations.Comment: 26 pages, 8 figure

Об опыте использования информационных технологий в преподавании численных методов решения задач

The experience of using information technologies at the Department of Materials Resistance, Building Mechanics and Metal Constructions of Polotsk State University in teaching the course «Numerical methods of construction tasks solution» to the second-year students with the speciality «Civil and Industrial Engineering» is considered

Advanced Materials, Technologies and Technological Processes

This special edition is devoted to materials science and technologies of materials synthesis and processing. Additive technologies such as direct laser deposition and selective laser melting are investigated for the case of application in alloy synthesis in the first chapter. The properties of obtained samples were also analysed. The book's next chapter includes research articles exploring the results analysis of the application of modern technological processes for materials treatment. Here are examined the constructional steel ultrasonic impact treatment at negative air temperatures, the process of forming briquettes from iron and plastic waste and the welding of structural steel at low temperatures. The surface modification of nickel oxide thin films obtained by gas-phase deposition and the crystallisation conditions on the as-cast structure of a shape memory alloy are explored in the third chapter. The next four chapters are devoted to biomedical research, the investigation of aggregate replacement materials in concrete production and actual engineering issues in structural engineering, structural mechanics and geotechnics. This special publication will interest materials science, machinery, biomedical engineering and construction specialists