Wyniki wyszukiwania - BazTech

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Beton na kruszywie z recyklingu w belkowych elementach konstrukcyjnych

Sadowska-Buraczewska Barbara, Świerzbin Anna

Przegląd Budowlany

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2024

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R. 95, nr 3

106--109

PL

W pracy przedstawiono wyniki badań eksperymentalnych żelbetowych belek o przekroju prostokątnym o wymiarach 1100x120x80 mm wykonanych z betonów z wykorzystaniem kruszywa z recyklingu oraz belek kontrolnych jednorodnych wykonanych z użyciem kruszywa naturalnego. Badania w zakresie doraźnym obejmują ugięcia, odkształcenia, nośność i rysy belek z zastosowaniem kruszywa z recyklingu. Ponadto w pracy przedstawiono badania materiałowe zastosowanych betonów.

EN

The paper presents the results of experimental tests of reinforced concrete beams with a rectangular cross-section with dimensions of 1100x120x80 mm, made of concrete with the use of recycled coarse aggregate, and homogeneous control beams made of natural aggregate. Ad hoc tests include deflections, deformations, load capacity and cracks of beams using recycled aggregate. In addition, the paper presents material tests of the concretes used.

2

Comparison of Mechanical Properties of Ad Hoc T-Section Reinforced Concrete Beams Made of Concrete with the Use of Natural and Recycled Aggregate

Sadowska-Buraczewska Barbara, Kujawska Justyna

Advances in Science and Technology. Research Journal

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2024

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Vol. 18, no 6

465--475

EN

Sustainable construction represents a pivotal aspect of contemporary engineering endeavors, which are directed towards the minimization of the detrimental impact of the construction sector on the environment. This is achieved through the efficient utilization of resources and the reduction of waste generation. The study presented an analysis of the mechanical properties of ad hoc reinforced concrete beams made of concrete with recycled and natural aggregate. The objective of this study was to assess the potential of recycled aggregates as a substitute for natural aggregates in reinforced concrete structures, with the aim of contributing to the sustainable development of construction. The experiments compared the behavior of reinforced concrete beams with the same degree of reinforcement but differing in the type of aggregate. The results demonstrated that recycled aggregate beams exhibited lower stiffness and higher deformation under load compared to natural aggregate beams, particularly at loads close to the breaking force. Nevertheless, similar failure modes and cracking patterns were observed in both types of beams, indicating that concrete with recycled aggregate could be employed effectively in specific structural applications.

3

Comparative Analysis of Physical-Mechanical Properties of Natural and Recycled Aggregate Concretes

Sadowska-Buraczewska Barbara, Kujawska Justyna

Advances in Science and Technology. Research Journal

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2021

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Vol. 15, no 2

18--29

EN

Research on the use of construction and demolition waste as recycled aggregate for the production of new concrete has confirmed that they are environmentally friendly and constitute an alternative method of waste management. However, contrary to conventional concrete, no large applications of concrete made with recycled concrete have been made and there is still the literature studies of recycled aggregate properties are different, which indicates the need for further research on the properties of cements from waste. This paper presents and compares the results of a laboratory study on the properties of ordinary concrete (BZ), high-strength concrete (BWW), recycled aggregate concrete (REC). The tensile and compressive strength, modulus of elasticity of these concentrates were marked. The research results proved that the compressive strength of the concrete with recycled aggregate, compared with high-performance concrete, is much lower, but only slightly lower than for ordinary concrete. In turn, the tensile strength of the concrete with recycled aggregate is lower than that of high-performance concrete and ordinary concrete. These values, in the case of the compressive strength are as follows: REC – 52MPa; BWW – 68MPa; BZ – 25MPa, whereas for the tensile strength, they reach: REC – 4 MPa, BWW – 6 MPa, BZ – 5.1 MPa. Statistical analysis showed that the given parameters of the analysed concretes are indeed statistically different. Obtained results indicate that recycled aggregate may be aggregate of standard value and good mechanical properties, even better than of ordinary concrete. The application of recycled aggregate is considered to be a new approach in balanced construction and a superb solution to protect the environment.

4

Projekt Terminala Regionalnego Portu Lotniczego

Chodkowski Kamil, Sadowska-Buraczewska Barbara

Przegląd Budowlany

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2019

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R. 90, nr 2

30--34

PL

Miasto Białystok jest miastem rozwijającym się. Aby przyciągnąć nowych inwestorów, a także kolejnych mieszkańców, ważne jest zapewnienie odpowiedniego połączenia z resztą kraju oraz kontynentu. Oprócz będących już w realizacji kontraktów infrastrukturalnych ważne jest także zadbanie o połączenie lotnicze.

EN

The city of Bialystok is a developing city. To attract new investors as well as other residents it is important to ensure an appropriate connection with the rest of the country and the continent. In addition to the infrastructural contracts already being implemented, it is also important to ensure an air connection.