RECIKLIRANI AGREGAT U GRAĐEVINI KAO INOVACIJA ZA ZELENI RAZVOJ I ODRŽIVU TRANZICIJU / RECYCLED AGGREGATE IN CONSTRUCTION AS AN INNOVATION FOR GREEN DEVELOPMENT AND SUSTAINABLE TRANSITION

Abstract

This scientific research work will deal with recycled aggregate from its collection, processing, testing and application in the construction industry. Therefore, the first step in the production of recycled concrete is the collection of waste from construction sites, which includes destroyed and damaged concrete elements, pavers, as well as concrete remains from the technological process of making and concreting in structures. This material must be processed to make it suitable for reuse. The further process goes through the breaking and selection of that aggregate, i.e. residual concrete is broken and crushed in plants into smaller pieces, and the process may include sorting and selection by size and type of aggregate. It is very important to remove impurities (such as metal, wood or plastic components) in order to make the recycled aggregate as clean as possible. The last step is laboratory testing, i.e. checking the properties of the recycled aggregate through testing different physical and mechanical properties of the recycled aggregates. Comparing these properties with natural aggregates (used in traditional concrete mixes) will help us determine the optimal proportions for making the concrete mass.