Crushed brick blends with crushed concrete for pavement sub-base and drainage applications

Demolition materials are generated by demolition activities and account for a major proportion of the waste materials present in landfills. Crushed brick and crushed concrete are major components of demolition materials. Recycled crushed concrete, crushed brick and crushed rock are however viable substitute materials for natural resources used as construction materials in engineering applications. This paper presents the laboratory testing results of various proportions of crushed brick blends with crushed concrete. The engineering properties obtained were compared with existing local authority specifications for pavement subbase and drainage systems to ascertain the potential use of crushed brick blends in these applications. The demolition materials for the experimental works were collected from a recycling site in Victoria, Australia.