Recycled concrete aggregate (RCA) collected from the demolition of old reinforced structures can be reused to prepare structural and non-structural concrete, thereby protecting environment by preserving natural resources. This study explores RCA’s use, crushed different building projects in Riyadh, manufacture fresh self-compacting (SCC) investigate its properties hardened state. Four SCC mixes...

Concrete pavement recycling is a relatively simple process that involves breaking, removing and crushing hardened concrete from an acceptable source to produce recycled concrete aggregate (RCA). The formal process of RCA production typically involves an initial evaluation of the existing source concrete; pavement preparation, which may include removal of an asphalt overlay; pavement breaking, r...

Three types of geosynthetic are used in this study to stabilize recycled ballast in the laboratory model. The compressive strength of recycled aggregate concrete is relatively lower up to 15% than natural aggregate concrete. The durability parameters confirms suitability of RCA & RAC in making durable concrete structures of selected types. The weakest specimens tested obtained maximum compressi...