Mixing ratio (gypsum and dry soil are relative cement content)

Unconfined compression strength (unit: kPa)

Group

Cement content

Gypsum content

Dry soil content

7 d

14 d

28 d

1.1

4%

0%

0

21.55

25.20

31.92

1.2

6%

0%

0

58.87

68.47

82.17

1.3

8%

0%

0

106.12

111.55

131.96

1.4

10%

0%

0

171.17

212.97

281.44

2.1.1

8%

20%

0

108.45

120.59

140.26

2.1.2

8%

30%

0

123.54

143.99

160.35

2.1.3

8%

40%

0

110.05

126.26

149.41

2.1.4

8%

50%

0

108.70

124.23

147.73

2.2.1

8%

0%

1 Multiple

106.76

112.38

132.62

2.2.2

8%

0%

2 Multiple

109.33

114.25

133.38

2.2.3

8%

0%

3 Multiple

112.24

124.91

142.70

2.2.4

8%

0%

4 Multiple

123.54

133.62

157.32