Granite Crushing Screenings as a Component Factor of Concrete Structure Formation. Part 1. Problem Definition. Identification of Screenings as a Component Factor of Structure Formation

The problem of consideration of stone crushing screenings as a component factor of the formation of macro-, micro-, nano-structures of conglomerate building composites is formulated. On the example of structure formation of traditional and high-tech cement concretes, the substantiation of mechanical, mechanical-chemical and physical-chemical role of fraction differences of granite crushing screenings is made. In this context, data on the genesis of screenings and their structurally significant identification characteristics are presented. In addition, ordinary screening, enriched screening, individual fraction differences separated from the ordinary screening, a dust-like part of screening separated from the hydro-removed pulp by drying are considered. A priory, the projected manifestation of the role of types of screenings in the formation processes of the frame component (grains of macro- and meso-fractions) and the matrix component (grains of macro- nano-fractions of screening and products of concrete hydration) of the concrete structure.

A.I. MAKEEV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
E.M. CHERNYSHOV, Doctor of Sciences (Engineering) Academician of RAACS

Voronezh Technical University University (84, 20-letiya Oktyabrya Street, 394006, Voronezh, Russian Federation)

1. Chernyshov E.M., Djachenko E.I., Makeev A.I. Neodnorodnost’ struktury i soprotivlenie razrusheniyu konglomeratnykh stroitel’nykh kompozitov: voprosy materialovedcheskogo obobshcheniya i razvitiya teorii [Heterogeneity of the structure and resistance to the destruction of conglomerate building composites: the questions of material science generalization and development of the theory]. Voronezh: Voronezh State Technical University. 2012. 98 p. 

2. Bazhenov Yu.M., Chernyshov Ye.M., Korotkikh D.N. Designing the structures of modern concrete: defining principles and technological platforms. Stroitel’nye Materialy [Construction Materials]. 2014. No. 3, pp. 6–14. (In Russian). 

3. Kalashnikov V.I. Industry of non-metallic building materials and the future of concrete. Stroitel’nye Materialy [Construction Materials]. 2008. No. 3, pp. 20–22. (In Russian). 

4. Belov V.V., Obraztsov I.V., Kulyayev P.V. Methodology for de-signing optimal structures for cement concretes. Stroitel’nye Materialy [Construction Materials]. 2013. No. 3, pp. 17–21. (In Russian). 

5. Effektivnye vysokoprochnye i obychnye betony. Pod obshch. red. V.I. Kalashnikova [Effective high-strength and ordinary concrete. Under the general editorship of V.I. Kalashnikov. Penza: Privolzhsky House of Knowledge]. Penza: Privolzhskiy Dom znaniy. 2015. 148 p. 

6. Kapriyelov S.S., Sheynfel’d A.V., Kardumyan G.S. Novyye modifitsirovannyye betony [New modified concrete]. Moscow: Paradiz. 2010. 258 p. 

7. Chernyshov E.M., Artamonova O.V., Slavcheva G.S. Nanomodi-ficirovanie sistem tverdenija v strukture stroitelnyh kompozitov [Nanomodification of curing systems in the structure of building composites]. Voronezh: Nauchnaja kniga. 2016. 132 p. 

8. Vinogradov Ju.I., Hohlov S.V. On the question of the formation of “drop-out” during production of crushed granite. Vzryvnoe delo. 2015. No. 113/70, pp. 118–125. 

9. Makeev A.I. Deep processing of crushing screenings of crushed granite for their integrated use in the production of building materials. Nauchnyy zhurnal stroitel’stva i arkhitektury. 2010. No. 1, pp. 92–99. 

10. Makeev A.I. Scientific and technical justification of the technol-ogy of deep processing of screenings of granite crushed stone crushing. Nauchnyy zhurnal stroitel’stva i arkhitektury. 2011. No. 3, pp. 56–67.