Nanosilica is a nano-sized silica material ranging from 1 to 100 nm in size and serves to enhance the compressive strength of concrete. Nanosilica can be produced through a synthesis process from kaolin. The materials used in this study include palm kernel shell ash waste and a magnetic stirrer as the mixing tool. This study employed drying times of 6 hours, 12 hours, and 24 hours. In this stud…