Classification of aggregate according to Size:

As per size aggregates are divided into two categories:

i. Coarse Aggregate: The aggregate having size bigger than 4.75mm is considered as coarse aggregate.

ii. Fine Aggregate: The aggregate whose size is 4.75mm and less is considered as fine aggregate.

Classification of aggregate according to shape:

As per shape aggregates are divided into four categories:

i. Rounded: This type of aggregate is completely shaped by attrition or water worn.

ii. Irregular or partly rounded: This type of aggregate is naturally irregular or partly shaped by attrition.

iii. Angular: This type of aggregate contains well defined edges formed at intersection of roughly planer faces.

iv. Flaky and elongated: This type of aggregate having small thickness as compared to width or length.