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Table 6 Compressive strength of FAGCs.

From: Investigating Various Factors Affecting the Long-Term Compressive Strength of Heat-Cured Fly Ash Geopolymer Concrete and the Use of Orthogonal Experimental Design Method

Compressive strength of FAGCs (MPa)

Mix no.

7-day

28-day

480-day

1

37.6 ± 0.9

39.5 ± 4.6

45.8 ± 0.7

2

52.2 ± 2.7

54.3 ± 1.5

65.5 ± 4.0

3

57.1 ± 5.4

60.4 ± 1.8

72.1 ± 5.3

4

52.3 ± 6.6

56.5 ± 3.4

73.7 ± 2.3

5

38.1 ± 1.6

40.7 ± 2.9

50.7 ± 3.2

6

61.5 ± 4.6

61.9 ± 5.9

71.0 ± 6.6

7

47.3 ± 3.3

49.9 ± 1.5

62.8 ± 4.7

8

71.1 ± 0.8

72.3 ± 2.1

80.7 ± 2.5

9

34.8 ± 1.0

36.8 ± 1.2

47.8 ± 0.9

10

34.3 ± 0.8

41.4 ± 2.9

52.6 ± 3.1

11

65.9 ± 1.8

70.4 ± 7.7

83.3 ± 0.4

12

72.6 ± 0.5

73.2 ± 4.3

88.7 ± 3.2

13

24.1 ± 0.6

25.7 ± 0.6

34.3 ± 0.4

14

36.6 ± 1.2

39.6 ± 0.7

51.5 ± 2.7

15

58.4 ± 1.5

61.9 ± 1.1

75.5 ± 1.1

16

64.6 ± 3.3

66.6 ± 6.3

84.5 ± 2.5