REVIEW ON FILLER EFFECT OF VARIOUS NONREACTIVE MATERIALSIN CONCRETE

Fillers are particles added to the material or mixed in order to reduce the excessive utilisation of binder and at the same time improve some properties of the mixture, from past study several materials have been used as fillers in the replacement of either cement or fine. Thispaper presents a review of past studies on the filler effect of various nonreactive materials as fillers. Materials like ground river sand, limestone dust, ground quartz, carbon black, quarry dust and marble dust are reviewed. Based on analysis, it has been proven that filler plays a significant role in concrete, not only contributing to strength improvement and other properties in concrete, but also when used as a replacement for cement or fine aggregate, whereby minimizing the excessive consumption of conventional materials. However, it can be concluded from past studies that in replacement level of the various materials as filler in concrete, the replacement should be in the range of 2 to 15% for a sustainable concrete structure. Furthermore, as the particle size of the filler affects the performance of the concrete, it is thus concluded that a finer particle size range of the filler should be in the range of 0.025 to 6μm for better results and filling ability or particle packing.