| Investigations on the rheological behaviour of clay pastes from 20 clay
samples at various moisture contents, close to liquid limit consistency
have been carried out, and from the results, the magnitude of thixotropic
break-down at liquid limit consistency has been determined. The
magnitude of thixotropic break-down at liquid limit has been found to
vary within a narrow range of 3.4 to 4.6 sq em. A method to determine
liquid limit of clays has also been worked out from these studies. The
liquid limit values obtained by the above method and from other
standard classical methods compare well within a variation of 1 to 2
per cent. |