Abstract :
The filler effect of pozzzolanic materials is defined as proper arrangement of small particles into the microstructure that fill the voids and contribute towards improvement of compressive strength without any chemical reaction. This effect of pozzolan plays a vital role for the production of high strength mortar. The filler effect is dominating when pozzolan particles are in chemically inactive form. The individual contribution of physical and chemical effect in concrete and mortar still not determined. Several studies have been found in the published literature on finding the filler effect of pozzolans by replacing cement with chemically inactive materials which size is same as pozzolans. The chemically inactive materials used in previous studies are carbon black, limestone filler and ground river sand, which used bigger range size of replacement percentages (like 5%, 10%, 15% or 10%, 20%, 30%etc). However in this study, lower range size of replacement percentages (like 2.5%, 5%, 7.
Keyword :
Pozzolanic Materials, Filler Effect, Replacement Percentages, Voids, Compressive Strength.