Table 3.

Critical sparging pressure from centrifuge tests.

Sample No.	glevel	Static water pressure (kPa) (1)	Critical AS pressure (kPa) (2)	(2)-(1) (kPa) (3)
1	15	64.8	100	35.2
	30	112.4	170	57.6
2	15	68.1	105.0	36.9
	30	134.2	180.0	45.8
	40	170.7	240.0	69.3
	50	204.5	300.0	95.5
3	15	72	110.0	38.0
	30	137.5	180.0	42.5
	40	178.3	230.0	51.7
	50	211.6	290.0	78.4
4	15	66.9	100.0	33.1
	30	129.8	180.0	50.2
	40	168.3	240.0	71.7
	50	203.3	300.0	96.7