Effect of Mineral Admixtures on the Performance of Low-Quality Recycled Aggregate Concrete

Abstract

To improve the application of low-quality aggregates in structural concrete, this study investigated the effect of multi-purpose mineral admixtures, such as fly ash and ground granulated blast-furnace slag, on the performance of concrete. Accordingly, the primary performance of low-quality recycled aggregate concrete could be improved by varying the replacement ratio of the recycled aggregate and using appropriate mineral admixtures such as fly ash and ground granulated blast-furnace slag. The results show the potential for the use of low-quality aggregate in structural concrete.

Keywords

• low-quality recycled aggregate
• fly ash
• ground granulated blast-furnace slag
• performance improvement