Fine Aggregate and its effect to Mix Design of Concrete

It performs an important role in mix design of concrete. Various factors of fine aggregates that affect the design mix of concrete such as fineness modulus, moisture content, specific gravity, and silt content. Higher the specific gravity of fine aggregate stronger concrete can be produced So Mix design cannot be done without deriving of specific gravity of fine aggregates. Fineness Modulus of Fine aggregates It is the major factors that influence concrete mix design as it controls the proportion of sand in concrete mixture. It is calculated by sieve analysis based method and the overall fineness of sand is given by factor called fineness modulus. Moisture Contentof Fine aggregates From this factor we can understand how much water is required for water/cementitious materials ratio so Its  important  to determine the  moisture content  of  aggregate  prior to mixing. If the  moisture content  is positive, the  aggregate  has surface  moisture  and will contr