The Compressibility and Swell of Mixtures for Sand-Clay Liners

Table 6

Summary of swell and compression data for Form B clay.

Clay content	Mixture form	Compression index Cc	Swell index Cs	Void ratio	Swell %	Swell pressure (kPa)	Dry density; kN/m^3	m.c. %
5% (S1 -a)	Form B	0.0179	—	0.5167	0.20	17	17.5	0
5% (S1 -b)	Form B	0.0374	0.0126	0.4911	0.00	0	17.8	11
10% (S3 - a)	Form B	0.0392	—	0.5198	1.67	70	17.5	0
10% (S3 -b)	Form B	0.0492	0.0159	0.4620	0.51	11	18.2	11
15% (S5- a)	Form B	0.0734	—	0.5198	3.83	100	17.5	0
15% (S5 -b)	Form B	0.0377	0.0154	0.4706	2.17	50	18.1	13
20% (S7 -a)	Form B	0.0754	0.0277	0.4404	6.16	85	18.5	13
20% (S7 -b)	Form B	0.0447	0.0183	0.4423	7.23	100	18.5	13
25% (S9 -a)	Form B	0.0691	0.0223	0.4739	6.43	90	18.1	17
25% (S9 -b)	Form B	0.0497	0.0199	0.4730	5.15	60	18.1	17
30% (S11 -a)	Form B	0.0860	0.0297	0.5096	11.30	170	17.7	16
30% (S11 -b)	Form B	0.0726	0.0202	0.5102	11.44	150	17.7	16