This document describes the procedure for performing a dry sieving fineness test of cement. The fineness test checks that proper grinding of cement has occurred, as finer cement particles lead to quicker chemical reactions, earlier strength gain, and a larger surface area. The dry sieving test involves weighing 100g of dried cement sample, sieving it through a 90 micron sieve for 10-15 minutes, weighing the residue left on the sieve, and calculating the percentage fineness based on the weights. The test is repeated at least three times and the average result is reported. Accuracy and following procedural steps carefully are important for obtaining reliable results.

1. FINENESS TEST OF CEMENT
DAVINDERPAL SINGH (PRESENTER)
AKHILESH KAUSHAL (HELPER)
idavinder007@gmail.com

2. ABOUT TEST
FINENESS TEST OF CEMENT IS PERFORMED TO CHECK THAT PROPER
GRINDING OF CEMENT HAS TAKEN PLACE OR NOT.
THE FINENESS OF CEMENT PLAY A SIGNIFICANT ROLE AS FINER THE CEMENT,
MORE WILL BE THE SURFACE AREA AND HENCE QUICKER THE REACTION WITH
CEMENT.
FINER CEMENT ALSO GAIN EARLY STRENGTH.

3. TYPES OF FINENESS TEST OF CEMENT
THERE ARE TWO TYPES OF FINENESS TEST OF CEMENT
(a) DRY SIEVING FINENESS TEST. [ IS:4031 (PART 1) ]
(b) BLAINE AIR PERMEABILITY FINENESS TEST. [ IS:4031
(PART 2) ]

4. DRY SIEVING FINENESS TEST
IN THIS PRESENTATION, WE ARE GOING TO GO INTO COMPLETE PROCEDURE
OF DRY SIEVING FINENESS TEST ONLY, WHICH IS EASIER AND QUICK.

5. APPARATUS
90 micron IS SIEVE
PAN
LID
WEIGHING BALANCE (ACCURATE TO
0.01 g)
NYLON BRUSH

6. PROCEDURE
1. TAKE 100 g OF CEMENT AFTER WEIGHING ON A BALANCE (accurate to 0.1 g)
AND STIR IT WITH CLEAN DRY ROD GENTLY TO DISTRIBUTE FINES.
2. NOW PUT THIS 100 g ON 90 micron IS SIEVE AND SIEVE IT FOR (10-15)
MINUTES BY WRIST MOTION .
3. THE RESIDUE LEFT ON IS SIEVE IS WEIGHED.
4. PERFORM ATLEAST THREE TIMES AND TAKE AVERAGE.

10. OBSERVATION TABLE
SAMPLE CODE A B C
WEIGHT OF
SAMPLE TAKEN
(g), W1
100 - -
WEIGHT OF
SAMPLE
RETAINED ON 90
micron IS SIEVE
(g), W2
5.06 - -
PERCENTAGE
FINENESS
(%), ((W2 / W1)*100)
5.06 - -

11. YOU HAVE TO TAKE ATLEAST THREE READINGS AND AVERAGE OF THREE
READINGS RESULT IS YOUR FINAL ANSWER.
FINAL RESULT = ((A+B+C) / 3)

12. PRECAUTIONS
1. SAMPLE TO BE TAKEN DRIED
2. SIEVING TO BE DONE BY WRIST
ACTION TO PREVENT LOSSES
3. WEIGHING TO DONE VERY
ACCURATELY.

13. This is the most
basic cement test
and easy to perform,
but need accuracy.

14. ANY QUERY YOU CAN ASK ME BY EMAIL ON
idavinder007@gmail.com
HAVE A NICE DAY