Which apparatus is standardly used to test the soundness of Ordinary Portland Cement caused by free lime?
AVicat Apparatus
BLe Chatelier Apparatus
CBlaine Air Permeability Apparatus
DSlump Cone Apparatus
Explanation
Le Chatelier apparatus measures volumetric expansion (unsoundness) in cement due to unburned free lime (CaO). Autoclave testing is used when unsoundness is caused by both free lime and magnesia (MgO).
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