Table 7 Orthogonal test results.

From: Study on the performance and mechanism of graphene oxide / polyurethane composite modified asphalt

Test number

Evaluation

Penetration(0.1 mm)

Softening point(℃)

5℃ ductility(cm)

Elastic recovery(%)

1

53.6

64.1

8.0

83.4

2

50.5

70.3

8.2

85.2

3

48.9

67.8

7.7

84.4

4

47.3

69.1

7.5

85.6

5

49.7

62.9

8.3

82.4

6

53.8

71.8

7.9

84.9

7

44.5

68.0

8.5

82.7

8

47.6

67.7

8.8

86.4

9

50.8

72.9

8.1

80.7

10

48.1

76.5

9.2

82.5

11

44.5

62.3

8.1

80.6

12

47.2

75.2

8.7

82.1

13

53.9

61.2

9.1

83.2

14

50.1

66.3

8.4

88.1

15

48.9

60.5

9.0

83.3

16

49.2

73.4

8.9

80.4