Effect of Temperature on Interface Characteristics between Compacted Recycled Asphalt Pavement and Geogrid

Table 3

Comparison of interface shear strength parameters for various interface materials.

Geosynthetics—soil	Apparent adhesion intercept (kPa)	Interface friction angle (°)	Soil or RAP cohesion (kPa)	Soil or RAP internal friction angle (°)	Reference
Biaxial geogrid-RAP	47.8	42.9	42.6	42.6	This study (0°C)
Biaxial geogrid-RAP	35.8	42.3	24.3	42.5	This study (20°C)
Biaxial geogrid-RAP	31.9	41.0	16.6	41.5	This study (35°C)
Biaxial geogrid-RAP	39	37	25	39	Soleimanbeigi et al. [23]
Woven geotextile-RAP	20	22	25	39	Soleimanbeigi et al. [23]
Nonwoven geotextile-RAP	25	20	25	39	Soleimanbeigi et al. [23]
Uniaxial geogrid-RAP	26	29	25	39	Soleimanbeigi et al. [23]
Biaxial geogrid-gravel	6.2	45.9	–	–	Liu et al. [32]
Uniaxial geogrid-sand	27.7	37.8	21.0	27.3	Zhou et al. [33]
Uniaxial geogrid-gravel sand	23.4	28	3.1	30	Xu [34]
Geotextile-sand	–	37.3	–	–	[35]
Geotextile-sand	–	40.96	–	–	Sayeed et al. [36]

Note: Part of the data from Soleimanbeigi et al. [23] was at compaction temperature of 50°C and test temperature of 22°C.