Growing global environmental problems force us to think about their impact and search for ways to protect the environment. While the construction industry and the production of construction materials contribute to environmental pollution, they also offer great potential for addressing many environmental problems. Important opportunities exist in the use and processing of a whole host of industrial and construction waste and in the use of mineral resources. Among such mineral resources is magnesite, whose deposits in Slovakia are abundant. The current sustainability trends impose strict requirements on construction materials and products, favoring solutions with sufficient ecological and efficiency performance characteristics. With this focus on efficient and sustainable solutions in mind, the objective of this research was to analyze magnesium oxide construction boards, as they are the most commonly used construction product based on MgO. The specific MgO-based boards that were studied were applied in selected constructions built using the so-called dry method of construction and were compared with traditional material solutions. The research methodology is based on an analysis of computational models of the proposed variants to determine selected thermal-technical parameters. The analyses of external and interior structures presented in this work suggest that when boards based on MgO and traditional materials are used for coating constructions built using the dry method of construction, the former provide certain benefits in terms of energy accumulation, improving living comfort, and in terms of the fire resistance of constructions, improving overall safety. The conclusion of the presented article is devoted to discussions with works that addressed various perspectives on the application of MgO in the field of materials research. The findings from this analysis are beneficial especially in terms of expanding the knowledge in the area.
The current sustainability trends pose high demands on building materials and products. Those with potential to be labelled as an environmentally-friendly product or technology are getting preferred. One of the natural resources with such potential is magnesite, whose resources are widely found in Slovakia. The article deals with analysis of the magnesium oxide board properties as the most popular MgO-based building product. The comparative analysis of magnesium oxide boards with other available building boards (plasterboards, oriented strand boards) is included in the article and especially from the point of magnesium oxide boards’ benefits.
On the present, the problem of renovation of historical buildings is becoming more and more actual. The role of society is to protect and renovate the historical monuments. The presented article focuses on the problem of renovation of historic buildings from a structural, technological and cost point of view. During the solution of the case study "Renovation of roof structure of the Old Town Hall in Košice", a variant solution of the historic roof renovation was designed in accordance with the principles of historical buildings renovation. Subsequently, the evaluation of the technological and cost parameters for renovation; and determination of the optimal variant for renovation of the historical roof was processed through the methods of multicriterial analysis.
The current construction technologies are often characterized as ineffective, with long construction times, heavy structural weight, increased financial and labour cost, and environmentally unsustainable. Innovative construction methods, including modern lightweight panel systems, are characterized by low weight (this affects not only transport characteristics but also the production, such as easier handling of the panels), faster construction time, the guaranteed quality due to industrial production in a factory, economic efficiency and many other benefits. The presented study examined the potential of efficiency and performance of four variants of lightweight construction panels in the context of the required essential properties of prefabricated construction elements, as well as in comparison with the variant of "heavy" prefabricated concrete panel system.
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