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Test To Check Soundness Of Cement

SOUNDNESS
Soundness of cement is determined by Le-Chatelier method as per IS: 4031 (Part 3) – 1988.
Apparatus – The apparatus for conducting the Le-Chatelier test should conform to IS: 5514 – 1969
Balance, whose permissible variation at a load of 1000g should be +1.0g and Water bath.

soundness-of-cement-test

Procedure to determine soundness of cement

i) Place the mould on a glass sheet and fill it with the cement paste formed by gauging cement with 0.78 times the water required to give a paste of standard consistency.

ii) Cover the mould with another piece of glass sheet, place a small weight on this covering glass sheet and immediately submerge the whole assembly in water at a temperature of 27 ± 2oC and keep it there for 24hrs.

iii) Measure the distance separating the indicator points to the nearest 0.5mm (say d1 ).

iv) Submerge the mould again in water at the temperature prescribed above. Bring the water to boiling point in 25 to 30 minutes and keep it boiling for 3hrs.

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v) Remove the mould from the water, allow it to cool and measure the distance between the indicator points (say d2 ).

vi) (d2 – d1 ) represents the expansion of cement.

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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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41 comments on "Test To Check Soundness Of Cement"

George Bass says:

To obtain a lasting structure 1 must ensure that the material use are sound {ENGRS}

IQBAL SAINI says:

write about rotatory kiln

mohit says:

what should be the value of d1-d2 ?
d1 – d2= ?

N pavan kumar says:

maximum 10mm

Omkar says:

it should be 5mm for aerated OPC and 10mm for non-aerated OPC

N pavan kumar says:

please give total information,insoundness of cement d2-d1 should not greater than 10 mm

Khandapu Rambabu says:

The expansion of cement is due to presence of silicates of magnesium and calcium

Khandapu Rambabu says:

Should not be greater than 10mm

indu says:

why water content should be 0.78 times p

Mukesh says:

what is the value of d2-d1, as per IS. upto what values the cement is acceptable, and when it should be rejected. What will happen / How it will affect construction , when the values are not within permissible limits ?

Adil Nawaz says:

Where are the precautions?

venki says:

give the procedure in tamil language

aslam says:

how to control initial setting time

Larica Karim says:

What about autoclave?/

Tanmay Pandya says:

Why taking 0.78P in Soundness Test ?

macHermans says:

ANY INFORMATION ABOUT SHEAR STRENGTH OF SOILS ON THIS PAGE

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