Constructional indicators of concrete on cubical crushed stone
DOI:
https://doi.org/10.32347/2707-501x.2018.35.38-44Keywords:
concrete, cubiform crushed stone, concrete structures, precast reinforced concrete.Abstract
Requirements for concretes regarding their operational qualities, areas of application, physical-technical properties, and 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 correct selection of fillers and the most rational application of them have a great 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.
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