Study on the Permeability of Modified Bentonite Slurry in Landfill

Table 2

Orthogonal experimental scheme.

Number	Cement (kg/m^3)	Bentonite (kg/m^3)	Sodium carbonate (kg/m^3)	CMC-Na (kg/m^3)	Permeability coefficient (cm/s)
					14 d	28 d
1	190	190	1.00	0.50	7.30E − 06	2.20E − 08
2	190	200	1.50	1.00	5.60E − 06	1.50E − 08
3	190	210	2.00	1.50	4.50E − 06	7.40E − 09
4	190	220	2.50	2.00	3.90E − 06	5.70E − 09
5	200	190	1.50	1.50	5.60E − 06	1.40E − 08
6	200	200	1.00	2.00	4.70E − 06	9.00E − 09
7	200	210	2.50	0.50	4.30E − 06	7.40E − 09
8	200	220	2.00	1.00	3.90E − 06	5.90E − 09
9	210	190	2.00	2.00	1.90E − 06	6.40E − 09
10	210	200	2.50	1.50	1.80E − 06	5.00E − 09
11	210	210	1.00	1.00	2.60E − 06	5.30E − 09
12	210	220	1.50	0.50	4.30E − 06	3.80E − 09
13	220	190	2.50	1.00	2.50E − 06	7.30E − 09
14	220	200	2.00	0.50	3.70E − 06	7.20E − 09
15	220	210	1.50	2.00	7.20E − 07	2.70E − 09
16	220	220	1.00	1.50	9.10E − 07	2.90E − 09