Akademik Veri Yönetim Sistemi
Transportation Research Record, cilt.1, ss.1-13, 2021 (SCI-Expanded)
In this study, a comprehensive literature review is conducted on the properties of
recycled concrete aggregate (RCA), which is the dominant construction and demolition
waste material and their comparison with natural aggregate (NA). The effects of the
consequences of crushing in the particles as a result of the compaction on the modulus
of elasticity, permanent deformation and CBR are analyzed. The paper also contains
the consumption of NA, waste disposal policies of different countries, RCA standards
and the environmental-economic reasons for its use. This literature review mainly
focuses on pavement layers as this is the main application of RCA in the utilization of
recycled materials. Developing an integrated construction and demolition waste
management will help achieve the main goal of preventing and reducing the generation
of these wastes, both locally and globally. In this way, not only the main goal of
preventing the increase in the production of construction and demolition waste is
achieved, but also the reuse and recycling of the waste materials produced are
encouraged. Results show that with propercare and process control, RCA has
equivalent or better performance than virgin aggregate for almost any application and
can be used in unbound pavement layers or other applications requiring compaction.
But it is always recommended that their mechanical properties and durability
performance be evaluated with full-scale tests before use. It is thought that the
information provided will be useful for contractors and engineers to evaluate alternative
solutions and to explore the rational use of such sustainable materials in applications.