Budownictwo zrównoważone budownictwem przyszłości

Abstract This paper presents a new type of composite structures - aluminium-timber beams. These structures have an advantage over other existing composite structures, because they are lighter. However, their application may be limited due to the high price of aluminium alloys. The authors of this article made an attempt to calculate the load-bearing capacity of an aluminium-timber beam.

/pdf/preliminary-analysis-of-the-aluminiumtimber-composite-beams-1x76wlydl3.pdf

Preliminary Analysis of the Aluminiumtimber Composite Beams

Wprowadzanie do obrotu wyrobów budowlanych zgodnie z Rozporządzeniem CPR 305/2011

Preventing environmental degradation and climate changes are some of the primary challenges of our civilization. Changes to the construction sector, which consumes vast amounts of raw materials, emits significant amounts of greenhouse gas and significant amounts of waste, are very important to reduce emissions and stop negative environmental changes. Regardless of the type of goal, an essential element to achieve it is understanding the purpose and tools necessary to implement appropriate and efficient solutions. This paper presents the survey results on understanding issues related to assessing construction products, including their environmental impact. The survey was conducted among professional groups related to construction, i.e., 181 investors, 522 contractors, and 116 sellers of construction products from various regions of Poland. Questions concerning thermal insulation materials and the external thermal insulation composite system (ETICS), the most widely used solution in the EU for the improvement of thermal performance of buildings, were asked. The obtained results indicate that the knowledge of the basic requirements of construction works under the Construction Products Regulation (CPR) is not too high (the share of correct answers was respectively 33.5%, 23.2%, and 16.2% in contractors, sellers, and investors groups). Similarly, the awareness of the tested, related to the environmental burden in terms of GWP of insulation materials and components of ETICS, should be assessed (49.7% of investors, 57.1% sellers of construction products, and 76.4% contractors indicated the thermal insulation material as the ETICS component with the highest environmental impact in terms of GWP). The obtained research results indicate the need for further education for evaluating construction products and sustainability.

/pdf/understanding-sustainability-of-construction-products-4j39dbsf.pdf

Understanding Sustainability of Construction Products: Answers from Investors, Contractors, and Sellers of Building Materials

Contemporarily designed, new polymer concrete-like composites are increasingly often used in construction, particularly where high chemical resistance of the material is important. However, their widespread use is limited, mainly due to the cost of resin binders used. This is a significant problem, especially in a situation where it is necessary to obtain elements of a substantial volume. One solution to this inconvenience is to develop lighter concrete. The article presents a lightweight resin mortar obtained by substitution of sand with expanded perlite. Thanks to its properties, this aggregate allows for the production of a material with a more porous structure, which is highlighted by the received SEM photos. The binder in the mortars was epoxy resin, hardened with triethylenetetramine. The results of the tests carried out allow us to conclude that despite the significant reduction of strength parameters of mortar, we can obtain a material with lower weight, good chemical resistance and low water absorption, and characterized by significant thermal insulation. This type of composites can be used, among others, as cores in sandwich panels.

http://www.jeeng.net/pdf-67104-6866?filename=SELECTED PROPERTIES OF.pdf

Selected properties of epoxy mortars with perlite aggregate

Nowe kierunki normalizacji europejskiej związane z wdrożeniem zasad zrównoważonego rozwoju w budownictwie

Jak zagadnienia środowiskowe zmieniają wymagania podstawowe dotyczące obiektów budowlanych? Cz. 3. Nośność i stateczność oraz bezpieczeństwo użytkowania i dostępność obiektów

Nowe aspekty oceny wyrobów budowlanych w kontekście wymagania zrównoważonego wykorzystania zasobów naturalnych

Rozporządzenie UE nr 305/2011 w pytaniach i odpowiedziach

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