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Lightweight Artificial Aggregates Produced from Water Reservoir Sediment and Industrial Waste-Ecological and
Adam Masłoń1, Maksymilian Cieśla1, Renata Gruca-Rokosz1
1Department of Environmental Engineering and Chemistry, Rzeszow University of Technology, Powstańców Warszawy 12 Av., 35-959 Rzeszów, Poland.
Abstract:
The use of mineral waste for the production of lightweight artificial aggregate is an important element of activities for sustainable development in construction and the implementation of the objectives of the circular economy. The article presents the physical, mechanical, and ecological properties of an innovative artificial aggregate produced from bottom sediments, concrete dust, and municipal solid waste incineration fly ash. The obtained research results confirm that the developed material achieves technological properties comparable to artificial aggregates available on the market, both commercial and those derived from recycling. However, the increased leachability of chlorides and sulphates remains a significant challenge, which may limit the scope of its applications. Despite this, the material shows the potential for use, among others, in the production of lightweight concrete. The analyses carried out have shown that the thermal hardening processes (200-400 °C) and autoclaving do not guarantee full immobilization of harmful substances contained in the raw materials for the production of this type of aggregate.
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