Physical-Mechanical Characteristics of Concrete with Cubiform Crushed Stone

Requirements for concretes regarding their operational qualities, areas of application, physical-technical properties, terms of durability expand the area of economic application of fillers of various types. Considering that fillers occupy up to 80% of the concrete volume and their cost reaches 50% of the cost of concrete and reinforced concrete products, it becomes clear that the correct selection of fillers and the most rational application of them have a great impact on properties of the concrete mix of concrete and reinforced concrete structures, technical-economic efficiency of producing building products made of precast, monolithic concrete and reinforced concrete in whole. The article presents comparative results of tests of ordinary and cubiform crushed stones, studies of basic physical-technical properties of concrete with cubiform granite crushed stone (compression strength, split-tensile strength, frost-resistance, waterproofness, water adsorption, and coefficient of resistance to air permeability). As a result of comparative studies conducted, it is established that the use of cubiform crushed stone as a large-size filler is reasonable for concretes of structures operating under conditions of central and eccentric compression.

N.L. POLEYKO, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
S.N. LEONOVICH, Doctor of Sciences (Engineering), Foreign Academician of RAACS

Belarusian National Technical University (65, Nezavisimosti Avenue, Minsk, 220013, Belarus)

1. Starchukov D.S. Concrete of the accelerated curing with additives of strong substances of the inorganic nature. Beton i zhelezobeton. 2011. No. 14, pp. 22–24. (In  Russian).
2. Zager I. Yu., Yashinkina A.A., Andropova L.N. Comparative assessment of products of crushing of rocks of fields of nonmetallic construction materials of the Yamalo-Nenets Autonomous Area. Stroitel’nye Materialy [Construction Materials]. 2011. No. 5, pp. 84-86. (In Russian).
3. Dobshits L.M., Magomedeminov I.I. Determination of frost resistance of large filler for heavy concrete. Beton i zhelezobeton. 2012. No. 4, pp. 6–19. (In Russian).
4. Petrov V.P., Tokareva S.A. Porous fillers from industry waste. Stroitel’nye Materialy [Construction Materials]. 2011. No. 12, pp. 46–50. (In Russian).