Effects of Nano Silica, Micro Silica, Fly Ash and Bottom Ash on Compressive Strength of Concrete

摘要: In this study, SCM (supplementary cementitious materials), such as nano silica, micro fly ash and bottom ash, have been evaluated for optimal level of replacement blending material in cement concrete. The physical chemical properties the above materials were first analyzed. This study focused on compressive strength concrete with different mixes at ages. many cases, products made silica perform better than without them. Test results obtained indicate that up to 5% 10% 20~30% could be advantageously blended adversely affecting strength. However, optimum levels these are 1~3% 3~8% when we consider All percentages defined by weight unless otherwise mentioned.