SITALS MADE FROM LOCAL RAW MATERIALS FOR INDUSTRIAL INNOVATION INFRASTRUCTURES WITH HIGH TECHNO-ECONOMIC EFFICIENCY IN EXTREME CONDITIONS OF THE FAR NORTH

Abstract

The relevance of the research is determined by the problems of the effective mineral exploration in the Arctic due to refusal to use building materials (concrete products, bricks, etc.) imported from thousands of kilometers away. The maximum distance from industrial-urban centers combined with the extremely severe natural and climatic conditions of the Far North significantly affect the economy of extraction and the ecology of the territory, where the cost of building materials reaches 70 % of the oil and gas cost. The access to the shelves of the Arctic seas of Russia and other countries requires innovative materials and breakthrough technologies, including the construction of artificial islands and underwater structures on the shelf. The implementation of these innovative technologies requires materials and structures with higher strength and durability. The main aim of the research was to develop multifunctional rock-glass ceramics based on the Polar Urals raw materials with a unique combination of physical, mechanical and chemical properties for advanced technologies. Objects оf researches: dump rocks of the basic rock class of the Polar Urals gold fields, metasilicate melts, glass and sitall (glass-ceramics). Methods оf researches: theoretical and experimental studying of raw materials; calculation of the feed composition for metasilicate glass-ceramics – a new class «sikam» (SCS); methods for determining the main technological parameters, studying the basic properties of products, methods for creating new innovative building structures; methods for substantiating technical and economic indicators. The chemical composition of the feedstock is determined by mass spectroscopic methods with inductively coupled plasma. Research results. The research has substantiated the original compositions and established the physic-chemical properties of rock glass-ceramics from the local raw materials of the Polar Urals gold fields. The research introduces the economic efficiency and environmental usefulness of this material production on site with the use of a cheap energy carrier (associated gas) in comparison with imported reinforced concrete. In special Arctic conditions, this material is indispensable for production of a pile-trestle road structure and construction of a durable transport infrastructure on its basis, industrial and civil facilities in the conditions of permafrost and the Arctic shelf.

Keywords

• Rocks of the Polar Urals
• rock glass-ceramics
• isomorphism
• monominerality
• metasilicates
• subsolidus immiscibility