Classify the aggregate based on its size and shape.

1 Answer

Answer :

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.

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