Production of non-traditional concrete based on steel slag as a way to reduce the environmental impacts

Autor: Václavík Vojtěch, Ondová Marcela, Junák Jozef, Junáková Natália
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Selected Scientific Papers: Journal of Civil Engineering, Vol 16, Iss 1, Pp 147-155 (2021)
Druh dokumentu: article
ISSN: 1338-7278
DOI: 10.1515/sspjce-2021-0011
Popis: Concrete is as a significant building material. Due to the fact that it is possible to incorporate by-products and industry waste into its structure, concrete represents an important sustainable material. Steel slag has a great potential for its reuse in concrete production. Despite that it is subject to volume changes over time, it can be used in concrete as a cement replacement or as a substitute for natural aggregates. The paper is focused at investigation the concretes with steel slag as a substitute of natural gravel aggregate of 4/8 mm and 8/16 mm fractions. In addition, a life cycle assessment within the system boundaries cradle-to-gate was performed. Results showed that some samples with slag have better mechanical parameters than samples with natural aggregate and significantly affect the utilization rate of non-renewable raw materials and reduce the overall negative environmental impacts of concrete up to 7 %.
Databáze: Directory of Open Access Journals