Aggregate (Rodi) For Construction Size: Vary

Aggregate (Rodi) For Construction is available for sale with following description.

There is two main use of aggregate in civil engineering:

As an underlying material and for foundations and pavements as an ingredient in Portland cement and asphalt concrete. The aggregates are one of the main ingredients in concrete. The aggregates in concrete can cover up to 70-75% of its volume.
The requirements of aggregates in concrete as a filler was described in IS. 383.

Two kinds of aggregates are.

1.Fine (below 4.75mm)

2.Coarse (above 4.75mm).

Its kinds totally depend on its sizes, but both contribute to the stiffness or weight of concrete. On concrete performance, the chemical, thermal and physical properties can also be influenced. Aggregate must be free from clay, loan, vegetable, and other organic material before use the aggregate should wash by spraying water on it. For construction 1:4:8 size of aggregate from 1 1/2 to 3/8 are used.

Maximum aggregate size:

The smallest sieve through which 100 percent of the aggregate pass.

Maximum Nominal aggregate size:

The largest sieve that retains any of the aggregates but not more than 10 percent