The role of narratives in the discourse on energy security of the European Commission: The EU's transition in energy relations with Russia

Dubský, Zbyněk; Tichý, Lukáš

doi:10.1016/j.exis.2023.101392

Cited by 1 publication

(1 citation statement)

References 43 publications

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“…Artificially manufactured aggregates are produced under high temperatures, thus consuming high energy to create a highly expanded structures [25]. These energy-related aspects have to be taken into account in view of the European Union energy transformation [26,27]. In this regard, their high potential makes plastics a reasonable alternative to the aforementioned natural and artificial lightweight aggregates due to their unique properties, like low rate of thermal conductivity [28].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Waste-Expanded Thermoplastic as a Sustainable Filler for Cement-Based Composites for Greener Construction

Pokorný,

Zárybnická,

Ševčík

et al. 2024

Buildings

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Plastics represent an integral part of our everyday lives, with various functions from packaging materials to insulation layers in our buildings. Pure expanded polystyrene (EPS) is a good example of a fully recyclable material. However, once polluted with other materials or substances, EPS becomes a serious environmental burden. In this work, waste EPS for the production of greener building composites with balanced properties and utility value was investigated. Natural aggregate (2/4 mm) was substituted with corresponding fractions of a thermoplastic alternative in portions of 25, 50, 75, and 100 vol.%. The comprehensive experimental investigation evaluated physical and mechanical properties, heat transport and accumulation, and water absorption characteristics. Due to the uniformly distributed plastic particles in the hardened cement-based matrix, the data revealed an important reduction in the dead weight of produced mortars, which also reduced thermal conductivity by up to 47%. On one hand, lightweight mortars showed partially reduced mechanical resistivity; on the other hand, the EPS bead-modified structure turned out to be effective in liquid water transport reduction.

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