Sustainable usage of demolished concrete waste as a sub-base material in road pavement

Recycled concrete aggregate, waste rock, crushed stone reclaimed asphalt pavement, clay brick, fine recycled glass, and gravel are some of the things that left behind when buildings torn down. These a big problem for many countries around world. More more people want to find smart ways use these substances make. To protect environment natural resources keep damage minimum, it is important deal with this issue locally. Several studies have shown old strong can be used as green material. This will make construction cheaper in long run. Thus, goal research was out how well demolished works what its engineering properties so could base sub-base road pavements. The aggregates were replace new or fresh range from 0% 100% by weight. When instead aggregates, water absorption went up 1.58 4.65%. shows water-cement ratio got better. crushing value 26.54 55.29%, impact 27.86 58.05%, abrasion 26.96 35.58%. Based on results study, roads made mix 50% aggregates. Reusing been down material help reach social, economic, environmental sustainability.