Abstract
Facing the consequences of climate change, the building sector as a substantial contributor of various pollutants and needs to be reformed to meet sustainable criteria. In this regard, the replacement of traditional binders such as Portland cement represents a major task that should be resolved. To contribute to the current state of knowledge, the submitted paper deals with a design of alkali-activated materials based on blended precursors from waste materials activated by a waste alkali activator. Specifically, the granulated blast furnace slag, a by-product of iron production together with selected freshwater sediments are used in several ratios to investigate the changes in the mineralogical and chemical composition. Casted samples are subjected to mechanical strength tests to elucidate the relationship between chemical and microstructural analysis and engineering properties. Obtained results point to the potential of utilization of freshwater sediments as a blended precursor that reached a compressive strength of about 50 MPa.
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