Sieve Analysis of Aggregates

[Dnyan Deshmukh]

Sieve Analysis of Aggregates​

Ref : IS 2386 (Part I)

Purpose : To determine the gradation of aggregates / fineness modulus of aggregates.

Procedure :

Prepare the sample for testing from a larger sample by quartering or by means of the sample driver.

Weigh the air dried sample and successively sieve on the appropriate size starting with the largest.

Shake each sieve separately over a clean tray until not more than a trace passes

Brush lightly with a fine camel hair brush on the 150μ (micron) and 75μ sieves to prevent blocking of the apertures.

A typical format for tabulating the results is given below:

 

[RAJJOGISRI]

How can we calculate the flakiness index and elongation index ?and is there any difference in it?

 

[Dnyan Deshmukh]

Better ask in Site Engineering and Execution section.

This section is intended for professional documentation only.