**FINENESS**

So we need to determine the fineness of cement by dry sieving as per IS: 4031 (Part 1) – 1996.The principle of this is that we determine the proportion of cement whose grain size is larger then specified mesh size.

The apparatus used are 90µm IS Sieve, Balance capable of weighing 10g to the nearest 10mg, A nylon or pure bristle brush, preferably with 25 to 40mm, bristle, for cleaning the sieve.

Sieve shown in pic below is not the actual 90µm seive.Its just for reference.

*Procedure to determine fineness of cement*

i) Weigh approximately 10g of cement to the nearest 0.01g and place it on the sieve.

ii) Agitate the sieve by swirling, planetary and linear movements, until no more fine material passes through it.

iii) Weigh the residue and express its mass as a percentage R1,of the quantity first placed on the sieve to the nearest 0.1 percent.

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iv) Gently brush all the fine material off the base of the sieve.

v) Repeat the whole procedure using a fresh 10g sample to obtain R2. Then calculate R as the mean of R1 and R2 as a percentage, expressed to the nearest 0.1 percent. When the results differ by more than 1 percent absolute, carry out a third sieving and calculate the mean of the three values.

**Reporting of Results**

Report the value of R, to the nearest 0.1 percent, as the residue on the 90µm sieve.

### Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.
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thanks of given us the tips i am realy thankfull to you

what about the specific surface and specific gravity of cement

what about the specific surface and specific gravity of cement.

thanx a lot .. i was seriously in need of this test procedure

thanx a lot dear..

kindly send us some discussion of theory regarding fineness of cement

many thanks. bcos, i was badly in need this procedure.

i have le chetelier flask in my lab but do not know how to use it .

plz vedio of this test

who is the inventor of sieve analysis test of cement

Really thankfull for explaing the testing the fineness testing of cement by sieve method,

Can you please tell the acceptable limits as per CPWD specifications or civil engineering

of fineness of cement using the sieve method

Is there any co-relation between the results obtained by the sieve method and the results

obtained by Blains method

i am working in a cement testing lab. would you please give me the calculation for finding fineness of opc/ppc cement in blains air permeability method.

I am interested to give comments if I you send me the answers for the asked questions

I am really thankful to you…..Thanks a lot

hello sir,

please tell me how is bangur cement.?

what are the limits for fineness of ppc according to IS383.

hello sir please tell me some theory about one way slabs

sir can you tell us about blaine’s apparatus to study fineness of cement..???

sir please tell about blaine’s air permeability test?

please i want the test of fineness by using plane device. thanx…

please give us pile compection test details.