Composition and Performance Evaluation of SBS/SBR Modified Emulsified Asphalt for Tack Coat on Airport Pavement

Table 9

Analysis of the range results of the orthogonal test.

Index		A	B	C	Empty column
Evaporation residue (%)	k1	56.67	57.00	58.33	59.00
	k2	64.33	60.67	58.67	58.00
	k3	57.00	60.33	61.00	61.00
	Range (R)	7.67	3.67	2.67	3.00
	Factors in priority	A > B > C
	Preferred solution	A2B2C3
Softening point (°C)	k1	55.70	57.13	55.13	59.47
	k2	58.40	59.27	59.60	56.37
	k3	60.83	58.53	60.20	59.10
	Range (R)	5.13	2.13	5.070	3.10
	Factors in priority	A > C > B
	Preferred solution	A3B2C3
Penetration (cm)	k1	56.63	52.40	50.90	53.67
	k2	53.47	54.67	55.90	54.60
	k3	51.00	54.03	54.30	52.83
	Range (R)	5.63	2.27	5.00	1.77
	Factors in priority	A > C > B
	Preferred solution	A1B2C2
5°C ductility (cm)	k1	31.30	32.40	26.57	36.80
	k2	36.73	35.33	31.10	32.53
	k3	33.03	33.33	43.40	31.73
	Range (R)	5.43	2.93	16.83	5.067
	Factors in priority	C > A > B
	Preferred solution	A2B2C3
Engla viscosity	k1	5.63	7.10	6.33	7.30
	k2	7.93	7.07	7.47	7.10
	k3	7.90	7.30	7.67	7.07
	Range (R)	2.30	0.23	1.33	0.23
	Factors in priority	A > C > B
	Preferred solution	A2B3C3