Types of Aggregates on the Basis of Moisture Content

TYPE of Aggregates ON THE BASIS OF MOISTURE:     

                       Types of aggregate on the basis of moisture have four following types.

i)                  DRY  aggregate:

           It is a type of aggregate having no water in it.

It has low weight, and having original weight of the material.

ii)               OVEN DRY aggregate:

           When an aggregate is subjected to heat in an oven for 100◦C  for about 1 hour. Then aggregate is called oven dry.

iii)            SATURATED SURFACE DRY (SSD) aggregate:

            It is a type of aggregate having about only their surface is dry, but internally it contains some water.

 It has less in weight from wet aggregate but more in weight from oven dry and dry aggregate.

iv)            WET aggregate:

           

             When a saturated surface dry aggregate is place in water for a long period of time, then it is called wet aggregate.