Construction — recycled concrete

Five-year study shows recycled concrete works as well as normal concrete, maybe a bit better Researchers at the University of British Columbia (UBC) conducted side-by-side comparisons of recycled and conventional concrete in a building foundation and a municipal sidewalk, finding that the recycled concrete had comparable strength and durability after five years in service. The study conducted by UBC Okanagan’s School of Engineering also found that the recycled concrete had a higher rate of compressive strength after 28 days of curing, while maintaining a greater or equal strength during the five-year period.Crushed concrete replaced natural aggregate in the study’s recycled...