Polish Transition towards Circular Economy: Materials Management and Implications for the Construction Sector

Tomaszewska, Justyna

doi:10.3390/ma13225228

Cited by 31 publications

(28 citation statements)

References 20 publications

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“…More importantly, the method being used should be able to produce a material with high repeatability and efficiency. Due to the ongoing transition of EU member states towards the circular economy (CE) model, the environmental impact associated with the manufacturing process also requires investigation [ 2 , 3 , 4 ]. The implementation of composite materials in the industry leads to a reduction in costs associated with the operation and maintenance of different machine components.…”

Section: Introductionmentioning

confidence: 99%

Zirconia–Alumina Composites Obtained by Centrifugal Slip Casting as Attractive Sustainable Material for Application in Construction

et al. 2021

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This paper focuses on the possibility of adapting the centrifugal slip casting method to obtain zirconia–alumina composite materials in the form of finished tube-shaped products. These types of products, due to their unique properties, can be utilised, for example, in the transport of aggressive substances, even in extreme temperatures or corrosive conditions. The study reports on the two series of zirconia–alumina composites differing in the content of ZrO2—2.5 and 25 vol%. The fabricated and sintered materials were characterised using scanning electron microscopy (SEM), X-ray diffraction (XRD) and stereological analysis. Moreover, a life cycle assessment (LCA) was provided in accordance with the requirements of the ISO 14044 and EN 15805 standards. The obtained data clearly show that the centrifugal slip casting method allows obtaining samples with high density and extremely uniform distribution of the ZrO2 phase in the alumina matrix. The stereological analysis results proved also that the addition of ZrO2 is effective in reducing the growth of Al2O3 grains during the sintering process. The phase analysis carried out by means of XRD showed that during the sintering process, in the case of composites with a lower ZrO2 content (2.5 vol%), the monoclinic to tetragonal transformation of ZrO2 was total, while for samples containing 25 vol% ZrO2, the monoclinic phase remained in a small amount in the final product.

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Section: Introductionmentioning

confidence: 99%

Zirconia–Alumina Composites Obtained by Centrifugal Slip Casting as Attractive Sustainable Material for Application in Construction

et al. 2021

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“…Moreover, the aforementioned industry is responsible for approximately 25-30% of global emissions of all waste including concrete, bricks, plaster, timber, glass, metal, plastic, solvents, asbestos, and mined dirt [2]. In 2018, in Poland, there were 3774 thousand tonnes of construction waste produced [3,4]which extend to increasing prices and the growing dependence on foreign suppliers. The situation is particularly unfavorable in the construction sector, which is among the most resource-and energy-consuming areas of the economy.…”

Section: Introductionmentioning

confidence: 99%

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

Sadowska‐Buraczewska¹,

Kujawska²

2021

Adv. Sci. Technol. Res. J.

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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.

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“…The raw material recovery sector is one of the strategic sectors (key industries) in Poland [27,49], indicated in the several documents determining further directions of economic growth in the country [50]. In recent years, the dynamic development of the recovery industry has been observed [51,52], supporting the formation of new companies [46]. The increasing number of enterprises operating in this sector positively affects the number of people employed; the current unemployment in Poland is equal to 6.5% [53].…”

Section: Social Concernsmentioning

confidence: 99%

Drivers and Barriers for a Circular Economy (CE) Implementation in Poland—A Case Study of Raw Materials Recovery Sector

2021

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Mobilizing industry and transforming industrial sectors to a circular economy (CE) is one of the key areas of activities in the European Green Deal (EGD)—the newest strategy of economic growth in European Union (EU). In the CE, the raw materials that can be recovered from various waste streams play a key role, therefore, recommendations for their management were developed, both at the European and national level. In Poland, the raw material recovery sector is one of the strategic sectors (key industries) described in several documents determining the further directions of economic growth in the country. This paper presents the revision of these documents and guidelines for the implementation of the CE in the raw material recovery sector. The scope of the paper also includes a description of the current state of the raw materials recovery sector and its return, supported by the analysis of drivers and barriers in its further development. In previous years, a dynamic development of the recovery industry was observed, followed by formation of new companies (dominated by medium-sized companies comprising ~50% of entities in the sector) and increasing amount of people employed (~70,700 people). A growing level of processing of secondary raw materials with the use of more and more innovative technologies has been observed, which could contribute to the improvement of the level of innovation of the national economy. There also some barriers, such as the lack of sufficiently developed industrial symbiosis (IS) and long-term support for the implementation of recovery technologies. The growing ecological awareness of society and enterprises themselves, as well as the growing belief in the importance of resource recovery for environmental protection, suggest the possibility of subsequent development of the raw materials recovery sector. Further actions in this field will be taken to strengthen the implementation of the CE in the country.

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Polish Transition towards Circular Economy: Materials Management and Implications for the Construction Sector

Cited by 31 publications

References 20 publications

Zirconia–Alumina Composites Obtained by Centrifugal Slip Casting as Attractive Sustainable Material for Application in Construction

Zirconia–Alumina Composites Obtained by Centrifugal Slip Casting as Attractive Sustainable Material for Application in Construction

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

Drivers and Barriers for a Circular Economy (CE) Implementation in Poland—A Case Study of Raw Materials Recovery Sector

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