The article proposes to use grouting mixtures from industrial waste of steel manufacturing for casing blastholes. Its properties, defined in the course of laboratory studies, are given. One of the main features of the proposed casing technology is the production of pipes directly in the hole using a cylindrical formwork moving along the hole.

The creation of composite materials using mechanically activated technogenic raw materials is relevant today as part of a large-scale task of construction and technological utilization of technogenic formations. The change in the crystal structure using mechanochemistry increases the activity of technogenic products: the number of coagulation contacts of dissimilar particles increases, increases the plastic strength of the hardening mixture, formation of hydration products is accelerated. The article is devoted to the study of the mechanism of structural and rheological transformations of a cementless hardening system based on activated steelmaking. Steel melting slags were used as raw materials - energy-saturated large-capacity waste of the West-Siberian Metallurgical Combine (Novokuznetsk). As components - activators - waste from the coal industry of the «Abashevskaya» mine (Novokuznetsk) - burnt rocks with heaps and slimes, obtained by neutralization of spent acid battery electrolytes with lime batteries for industrial vehicles. Based on used mechanically activated technogenic raw materials the binder composite material of the matrix structure is obtained. To assess structural and material changes in the hardening system comprehensive physical and chemical studies were carried out: IR - spectroscopy, thermogravimetric and x-ray phase analysis. Electron microscopy investigated the structure of the stone. It was found that the matrix structure of the composite material is a dispersion medium - matrix of dense fine-grained masses calcium sulfate hydrate; dispersed phase from lamellar crystals of quartz and magnesium oxide, and tubular crystals of calcium orthosilicate; and transitional interfacial layer from structured grains of calcium hydrosulfoaluminate. In the process of forming the structure interdependence of phases from each other was accompanied by a sequential transition of some types of structures to others: coagulation→ crystallization- condensation→ crystallization. The article presents the results of the self-organization of the structure, the interaction of oxide systems in the process of hydration is considered, major mineral neoplasms are established, possessing astringent properties and providing strong bonds between structure-forming components.

Article presents the results of experimental studies of fine-grained slag concrete based on mechanically activated steel slag of West Siberian Metallurgical Plant (Novokuznetsk). The purpose of research was to develop scientific principles for obtaining clinker-free fine-grained concrete based on activated steelmaking waste resources. For slag crushing for the purpose of binding properties initiation commercial equipment have been selected; coal industry waste of the Abashevskaya mine (Novokuznetsk) was used as activators, i.e. the pit dump burnt rocks, and sludge, obtained by neutralization of used acid batteries, batteries for industrial vehicles with lime electrolytes. Disposal of steelmaking waste remains a challenging issue and possibility of using this type of waste in production of clinker-free fine-grained concrete for industrial and civil construction will create an industrial resources base for the construction industry to improve ecological situation in the region. Change in structure of steelmaking resources using mechanical chemistry has increased its structural instability and activity and has enabled obtaining waterproof clinker-free fine-grained slag concrete of matrix structure (softening factor 0,84 – 0,95) and B7 strength class. The developed slag concrete has been tested at construction companies in the region.