A Simulation Study on the Swelling and Shrinking Behaviors of Nanosized Montmorillonite Based on Monte Carlo and Molecular Dynamics

Table 3

CEC of Ca-Mnt.

Layer charge density (per half unit cell)	Type of layer charge	Number of Ca^2+	Water content (%)
			5	10	20	30	40	45	50	55	60	65	70
0.25	Low-level	2	65	62	57	53	49	49	45	44	42	41	40
0.38	Transition	3	97	93	85	79	73	70	68	65	63	61	60
0.60	High-level	5	160	153	141	130	121	116	112	108	103	102	99