The Effect of Aging on the Cracking Resistance of Recycled Asphalt

Table 5

Texas overlay test results before and after APWS aging.

Mixture	Replicate	Starting load, kN	Final load, kN	Decline in load, %	Cycles to failure	Average cycles to failure
0 hours
Control I	1	2.185	0.153	93	55	71
	2	1.724	0.117	93.2	72
	3	2.325	0.159	93.2	86
Control II	1 (SP)	4.230	0.282	93.3	104	63
	2 (SP)	0.155	0.008	94.7	62
	3 (FC)	2.582	0.175	93.2	24
HPE	1	1.653	0.112	93.2	384	239
	2	1.759	0.12	93.2	145
	3	1.797	0.119	93.4	189
CWE	1	1.576	1.109	93.1	347	267
	2	1.742	0.118	93.2	144
	3	1.707	0.118	93.1	310
1000 hours
Control I	1	2.435	0.167	93.1	36	58
	2	2.438	0.168	93.1	79
HPE	1	2.213	0.151	93.2	186	186
	2	2.135	0.147	93.1	98
	3	2.386	0.167	93	275
CWE	1	2.53	0.174	93.1	153	253
	2	2.721	0.19	93	256
	3	2.526	0.174	93.1	349
3000 hours
HPE	1	2.987	0.23	93.2	75	71
	2	2.55	0.17	93.4	66
CWE	1	2.927	0.199	93.2	58	98
	2	2.663	0.18	93.3	137