How many types of aggregates are there?

How to classify aggregates | Types of Aggregates.
Aggregates are variously classified on the foundation of their grain size, their origin, and their volume-weight as follows:

1.Aggregate Types on the foundation of Grain Size.
This is the most common classification, the place in two sorts of aggregates are distinguished: (Fine and Coarse).

(1) Fine Aggregates.
In the Fine Aggregates, the grain-size lies between 4.75 mm and 0.15 mm.

(2) Coarse Aggregates:
Coarse aggregates are those that are retained on the sieve of mesh dimension 4.75 mm.

2.Types on the Basis of origin.
There are three kinds on the Basis of Origin.

(1) Natural:
These include all these types of first-rate and coarse aggregates, that are reachable in nearly prepared to use form, from herbal resources.

(2) Bye-product:
These encompass materials obtained as wastes from some industrial and metallurgical engineering operations, which possess appropriate residences for being used as aggregate.

(3) Processed:
These structure a specific class in Aggregate. They are especially manufactured for use in making Quality Concretes.

3.Types on the Basis of Density.
Three kinds of aggregates are individual on the groundwork of their weight per unit volume.

(1) Standard or Normal:
These kinds of aggregates supply strength and weighting to the Concrete of around two 2300 to 2500 kg/m3.

(2) High-Density Aggregates:
These are that kind of Aggregates, which is used in fashionable proportions yield in heavy weight concretes.

(3) Light weight Aggregate:
They consist of herbal and artificial materials of very low density so that the resulting concrete is also pretty Light in weight, usually with in a vary of 350 to 750 kg/m3.

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