Determination of physical and technical characteristics of recycling crushed stone from the breakages of ceramic bricks with the identification of prospects for its use as aggregates for concrete

The results of determining the bulk density, grain composition and grade by the crushing capacity of recycled crushed stone from the breakages of ceramic bricks obtained by crushing (utilization) fragments of brickwork are presented and the prospects of its use for the production of concretes for general construction purposes are evaluated. Recycling crushed stone from the breakages of ceramic bricks is a material (product) obtained by crushing substandard ceramic bricks, ceramic stones, fragments of brickwork based on them, as well as concrete and reinforced concrete structures and products with aggragates from the breakages of ceramic bricks. It was revealed that the recycling crushed stone obtained by crushing fragments of brickwork based on ceramic bricks consists mainly of brick breakage grains, mortar grains, as well as brick fight grains and mortar of various fractions aggregated into a single conglomerate. The bulk density of crushed stone from the breakage of ceramic bricks varies from 938 to 1006 kg/m³. The crushing capacity of crushed stone from the breakages of ceramic bricks varies from 25.6 to 27.7 MPa. As a result of the research conducted, it was revealed that the materials under study are suitable for use as aggragates in the production of concrete. However, there are no documents regulating uniform requirements for recycling crushed stone from crushed bricks and masonry in the Russian Federation. For wide application in the construction industry of recycling crushed stone, it is necessary to carry out a complex of experimental works with the development of a new GOST.

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