Study of crushed fine fractions of crushing products of dismantled paving slabs as a mineral additive

Abstract

Study of crushed fine fractions of crushing products of dismantled paving slabs as a mineral additive

Korovkin M.O., Eroshkina N.A., Shesternin A.I., Shulte I.S.

Incoming article date: 04.05.2025

The article examines the features of dismantled paving slabs as raw materials for the production of recycled aggregate for concrete. The effect of crushed fine fractions of secondary crushed stone screenings on the properties of fine-grained self-compacting concrete was investigated. It was experimentally shown that the use of this material as a mineral additive leads to an increase in the water demand of the self-compacting fine-grained mixture and a significant decrease in strength.

Keywords: demolition waste, vibro-pressed paving slabs, recycling, screening of secondary crushed stone, mineral additive, self-compacting fine-grained concrete, consistency of concrete mix, strength, shrinkage