Table 7 Orthogonal design and results of curing experiment.

From: Recycling treatment of waste oil-based drilling mud in gas fields

No.

Fly ash (%)

Cement (%)

Quicklime (%)

Compressive strength (MPa)

1

5

30

10

14.35

2

5

40

15

15.22

3

5

50

20

14.95

4

10

30

15

14.98

5

10

40

20

14.87

6

10

50

10

14.86

7

15

30

20

14.65

8

15

40

10

14.99

9

15

50

15

14.50