# Sieve Analysis of Aggregates

Posted in Civil Engineering Tests | Email This Post |**SIEVE ANALYSIS**

Sieve analysis helps to determine the particle size distribution of the coarse and fine aggregates.This is done by sieving the aggregates as per IS: 2386 (Part I) – 1963. In this we use different sieves as standardized by the IS code and then pass aggregates through them and thus collect different sized particles left over different sieves.

The apparatus used are –

i) A set of IS Sieves of sizes – 80mm, 63mm, 50mm, 40mm,31.5mm, 25mm, 20mm, 16mm, 12.5mm, 10mm, 6.3mm,4.75mm, 3.35mm, 2.36mm, 1.18mm, 600µm, 300µm, 150µm and 75µm.

ii) Balance or scale with an accuracy to measure 0.1 percent of the weight of the test sample.

The weight of sample available should not be less than the weight given below:-

The sample for sieving should be prepared from the larger sample either by quartering or by means of a sample divider.

**Procedure to determine particle size distribution of Aggregates.**

i) The test sample is dried to a constant weight at a temperature of 110 + 5^{o}C and weighed.

ii) The sample is sieved by using a set of IS Sieves.

iii) On completion of sieving, the material on each sieve is weighed.

iv) Cumulative weight passing through each sieve is calculated as a percentage of the total sample weight.

v) Fineness modulus is obtained by adding cumulative percentage of aggregates retained on each sieve and dividing the sum by 100.

**Reporting of Results**

The results should be calculated and reported as:

i) the cumulative percentage by weight of the total sample

ii) the percentage by weight of the total sample passing through one sieve and retained on the next smaller sieve, to the nearest 0.1 percent. The results of the sieve analysis may be recorded graphically on a semi-log graph with particle size as abscissa (log scale) and the percentage smaller than the specified diameter as ordinate.

sir i want to know that what is precautions of sieve analysis of stone chip (coarse aggregates)

Select aggregate that’ll not damage the sieve while it’s been shaked

Can you please post more about course aggregate, I want to know more.

I want to know more about aggregate

I want to know passing % of aggregate

I like this site and I want to be receiving mails concerning new innovations in aggregate mix and preparation

Give in detail regarding course aggregate seive analyses.

Requirements of Aggregates for Wet Mix Macadam

40mm-35%,20mm-20%,10mm-20% and stone dust-25%.

I want to know that mix design proportion for M25 concrete.

1:1:2

May i know why is the usage of equal amount of sand and rough aggregates are not suitable for all concrete mixture ? and what are the benefits of aggregates level segregation ? thank you.

this website is really useful.

Sir could u tell what will b the possible errors in my test. Material retained on 150 micron seive doesn’t lies between the range otherwise rest are correct tnx