ОЦЕНКА ПРИГОДНОСТИ СТАЛЕПЛАВИЛЬНЫХ ШЛАКОВ ПАО «ЧМК» ДЛЯ ПРОИЗВОДСТВА БЕТОНОВ

A. A. Ruzavin

Authors

A. A. Ruzavin South Ural State University, Chelyabinsk, Russian Federation

Keywords:

steelmaking slag, steelmaking slags minerals, substitution of Portland cement, utilization, physical and mechanical tests of binders

Abstract

There are given the results of a study on the feasibility of substituting in concretes a binder (Portland cement) with fine ground steelmaking slags (converter slag and slag of the complex steel processing facility) of PAO “Mechel” production. In the course of study, the chemical and mineralogical (quantitative and qualitative) compositions of the presented steelmaking slags were analyzed, both in the initial state and after mixing with water and subsequent hydration. The study checked the steelmaking slags ground till the state of standard Portland cement on the strength characteristics as well as the volume changes stability in the course of hardening by the GOST methods for Portland cement. The paper presents the X-ray pictures and the scanning electron microscope images of fine ground steelmaking slags. The relevant conclusions on the potential application of these slags in the production of concretes on their basis are drawn at the end of the article.

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