Szukana fraza: [Abstract = "The purpose of the research was to compare the properties of unmodified fly ash with those of ash modified in the magnetic activator in terms of its usefulness in the neutralization of acidic soils. Unmodified fly ash was classified as a medium\-grained calciferous material. The basic components of ash were silicates \(33.28% of SiO2\) and calcium compounds \(31.26% of CaO\). It has a low heavy metal content falling within a range characteristic of coal ash and meeting soil quality standard requirements."]

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