Abstract Sustainable concrete using recycled coarse aggregates from construction and demolition waste is gaining popularity in the industry, but has poor mechanical characteristics due to old cement mortar adhering aggregate surfaces. This study uses two processes (abrasion treatment slurry treatment) modify surface of (RCA) minimize strength loss RCA enhance bonding properties matrix RCA. Surf...

This experimental work evaluated geopolymer concrete containing fly ash and slag by partial replacement of natural coarse aggregate (NCA) with recycled (RCA) to manufacture environmental-friendly concrete. The proportion aggregates considered consists 10%, 20%, 30%, 40% the total amount. Also, a steel fiber ratio 0.3% was utilized. mechanical properties abrasion resistance ash/slag-based were t...

Cement concrete pavement accounts for a large proportion of the road network due to its excellent mechanical strength and durability. However, numerous microcracks are generated high brittleness concrete, which poses threat service life pavement. Currently, simultaneous addition fibers polymers is feasible approach resolving issues associated with concrete. This study explores properties mixtur...