ǂThe ǂvalorisation of selected quarry and mine waste for sustainable cement production within the concept of circular economy

Emilija Fidanchevski (Author), Katarina Šter (Author), Maruša Borštnar (Author), Ljiljana Kljajević (Author), Gorazd Žibret (Author), Klemen Teran (Author), Bojan Poletanovic (Author), Monika Fidanchevska (Author), Sabina Kramar (Author), Ildikó Merta (Author)

Abstract

The cement industry could potentially consume large amounts of solid industrial waste in order to improve its sustainability. The suitability of selected quarry and mine waste as secondary raw materials (SRM) was examined for the sustainable production of cement following the concept of a circular economy. The chemical, mineralogical, and radiological characterization of SRM was conducted in this study. Its potential use in low-carbon and low-energy belite-sulfoaluminate cement was investigated by incorporating the examined SRM into cement clinker. Various characterization methods were used to characterize the cement, including X-ray powder diffraction (XRD), thermal analysis (DTA/TG), and isothermal calorimetry. Depending on the chemical composition of the waste, lower or higher amounts were allowed to be incorporated into the raw clinker mixture for a targeted clinker phase composition. Among the samples, differences were observed in the phase composition of synthesized clinkers, which slightly influenced the reactivity of the cement but did not significantly change the compressive strength of the final product.

Keywords

mineralne surovine;rudarski odpadki;rudniki;kamnolomi;cement;klinker;krožno gospodarstvo;BCSA clinker;circular economy;clinker;mine wastes;quarry waste;

Data

Language:	English
Year of publishing:	2022
Typology:	1.01 - Original Scientific Article
Organization:	ZAG - Slovenian National Building and Civil Engineering Institute
Publisher:	MDPI
UDC:	553
COBISS:	110371843
ISSN:	2071-1050
Views:	244
Downloads:	141
Average score:	0 (0 votes)
Metadata:

Other data

Source comment:	Nasl. z nasl. zaslona; Opis vira z dne 29. 6. 2022; Soavtorji: Katarina Šter, Maruša Mrak, Ljiljana Kljajević, Gorazd Žibret, Klemen Teran, Bojan Poletanovic, Monika Fidanchevska, Sabina Dolenec and Ildiko Merta;
Pages:	str. 1-16
Volume:	ǂVol. ǂ14
Issue:	ǂiss. ǂ11
Chronology:	2022
DOI:	10.3390/su14116833
ID:	18809971