Innovational Construction Materials of LLP “EcostroyNII-PV” Production

Abstract:

The article discusses the experience of recycling industrial waste from the electric power industry and metallurgy. Based on the experience of Ecostroy NII-PV LLP. The proposed technology for manufacturing building products from ash and slag waste provides innovative compositions of raw mixtures. What provides an increase in operational characteristics and labor productivity in construction. The applied technology, in comparison with the existing analogues, provides for the use of local waste (ash and slag waste from the combustion of Ekibastuz coal, bauxite sludge from the Pavlodar aluminum plant, steel-making slags), differing in chemical and granulometric composition. as well as binding properties from other analogs and prototypes. In the manufacture of building products introduced mixture, including, wt %: slag Portland cement - 14.32-17.00; sand - 18.74-25.52, crushed stone - 46.50-49.71, sludge from alumina production obtained during the recycling of bauxite from Kazakhstan - 5-7; self-disintegrating steelmaking slag - 5-7; ash and slag waste from thermal power plants from burning Ekibastuz coals - 5-7. According to the test results, the average tensile strength of building products (paving slabs, curbs, hollow bricks) is 3.2 - 3.8 MPa (strength class V2.5).

• Periodical: Defect and Diffusion Forum (Volume 410)
• Pages: 806-811
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.410.806
• Online since: August 2021
• Authors: Kapar Sh. Aryngazin, Alexey V. Bogomolov*, Askar K. Tleulessov
• Keywords: Ash-Slag Wastes, Construction Products, Energetics, Metallurgy, Wastes

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