Methodological Approaches in Assessing the Possibility of Using Waste Electrocorundum Materials in Concrete Compositions

Abstract:

Heat-resistant concretes have been successfully used in many heat units and building structures. Making concrete heat-resistant is possible through the development of a heat-resistant phosphate matrix, aluminophosphate binder. The compositions of high-refractory concretes on aluminophosphate binder with electrocorundum and chrome-aluminous slag have relatively high strength up to 70 MPa after heat treatment. Wastes generated as a result of technological activities of enterprises have several technical and economic advantages as industrial raw materials. After passing the production possibility frontier, the material not only has not lost its properties, but became more prepared with the position of the grain composition and growth of specific surface area, heat treatment for use in the technology of concrete and refractory concrete, in particular, as heat-resistant fillers. The methodological approach in the study of defective ceramic-bond abrasive wheels has been proposed herein. The chemical, grain and mineralogical analyses of the material after mechanical grinding allowed us to define it as an aggregate for concrete in order to give it heat-resistant properties. The obtained concrete composition has a tensile strength 2.5 times higher than conventional cement composition of concrete and thermal resistance (water, 800°C) of the composition with heat-resistant filler has increased in 5 times.

• Periodical: Solid State Phenomena (Volume 284)
• Pages: 1030-1035
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.284.1030
• Online since: October 2018
• Authors: V.D. Tukhareli*, O.Y. Pushkarskaya, A.V. Tukhareli
• Keywords: Aggregates, Aluminum Oxide (Electrocorundum) Materials, Concrete, Heat-Resistant Properties

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