Study on Conventional and Rheological Properties of Corn Stalk Bioasphalt/PPA Composite Modified Asphalt

Table 7

Visual analysis of conventional physical properties.

Index	Factor	PPA	Bioasphalt	Shear time	Shear rate
Penetration	Average value 1	148.7	79.28	85.6	89.55
	Average value 2	90.83	85.68	86.98	94.35
	Average value 3	66.13	94.43	97.48	88.53
	Average value 4	64.8	111.08	100.4	98.03
	Range	83.9	31.8	14.8	9.5
Softening point	Average value 1	44.35	67.35	61.43	63.03
	Average value 2	59.9	62.6	61.68	61.1
	Average value 3	68.13	59.78	61.08	60.8
	Average value 4	72.83	55.48	61.03	60.28
	Range	28.48	11.88	0.65	2.75
Ductility	Average value 1	489.88	322.28	383.48	389.95
	Average value 2	387.73	364.45	386.5	388.38
	Average value 3	360.08	419.1	406.4	406.13
	Average value 4	343.63	475.48	404.93	396.85
	Range	146.25	153.2	22.93	17.75
Viscosity	Average value 1	299.13	699.3	530.3	578.63
	Average value 2	443.6	601.75	560.63	601.18
	Average value 3	700	533.23	597.75	552.18
	Average value 4	839.88	448.33	593.93	550.63
	Range	540.75	250.98	67.45	50.55