Onsite Use of Recycled Asphalt Pavement Materials and Geocells to ...

Elastic deformation (mm.)
5
4
3
2
1
0
0 1000 2000 3000 4000 5000
Figure 4.49 The elastic deformation versus the number of loading cycle for the 30 cm thick
unreinforced RAP base section
The strains at the bottom of the HMA surface were measured by the pavement strain
gauges at the center and 12.5 cm away from the center as shown in figure 4.50. The bottom of
the HMA surface at the center was under compression from the beginning up to 3,200 cycles and
then became under tension up to the end of the test even though the magnitude of the strain was
small. However, the tensile strain developed at the bottom of the HMA surface at the distance of
12.5 cm away from the center.
Number of loading cycle
88