Soundness of Cement | Procedure to determine Soundness of cement

Tuesday, September 21, 2010 0:15
Posted in category Engineering Materials
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It is the property  of cement due to which it undergoes large change in volume after setting.This change in volume may cause crack and disintegration of concrete.
To check the soundness of cement Le-Chatlier’s apparatus is used.
The apparatus consist of cylindrical mould having a cut or split. Cement paste of normal consistency is prepared of 100 grams consisting of 0.78 times of water required for normal consistency.This paste is filled in mould and curred for 24 hours.
After setting the mould is immersed in water and boil for one hour, after boiling note the increase in distance.
The difference between two measurement before and after heating is expansion which should not be more than 10 mm.

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