Effects of Continuous Laydown and Compaction on Interlayer Shear Bonding of Asphalt Layers

Table 5

Results of test.

Types of specimen		AC13/AC16		AC16/AC20
		Continuous paving	Discontinuous paving	Continuous paving	Discontinuous paving
Rut test (dynamic stability (kN))	60°C	2520	2258.8	2405.1	2122.9
	Standard deviation	145	143.9	133.8	93.4
Bending test (bending strength (MPa))	Room temperature	5.628	4.846	5.415	4.752
	Standard deviation	0.394	0.219	0.461	0.163
	Low temperature	16.876	14.216	16.354	14.208
	Standard deviation	0.773	0.976	0.664	0.763
	Freeze-thaw	1.424	1.152	1.337	1.05
	Standard deviation	0.112	0.056	0.054	0.068
Split test (split strength (MPa))	Room temperature	0.778	0.620	0.796	0.532
	Standard deviation	0.026	0.039	0.054	0.041
	Low temperature	2.007	1.672	1.771	1.793
	Standard deviation	0.096	0.099	0.097	0.102
	Freeze-thaw	0.414	0.155	0.279	0.285
	Standard deviation	0.021	0.011	0.015	0.012

Note: AC13/AC16 (AC16/AC20): upper layer AC13 (AC16)/lower layer AC16 (AC20).