Grouted Macadam: Material Characterisation for Pavement Design

List of Contents
Figure 6.8 – Influence of aggregate size/grading on the stiffness modulus of
grouted macadams 119
Figure 6.9 – Influence of aggregate size/grading on the phase angle of
grouted macadams 119
Figure 6.10 – Influence of grout type on the stiffness modulus of grouted
macadams 121
Figure 6.11 – Influence of grout type on the phase angle of grouted macadams 121
Figure 6.12 – Influence of combined variables on the stiffness modulus of
grouted macadams 122
Figure 6.13 – Influence of combined variables on the phase angle of grouted
macadams 122
Figure 6.14 – Influence of binder content on the fatigue life of grouted
macadams 124
Figure 6.15 – Possible position of a crack in a grouted macadam beam 125
Figure 6.16 – Possible position of a crack in a bituminous macadam beam 125
Figure 6.17 – Influence of binder type on the fatigue life of grouted macadams 126
Figure 6.18 – Influence of aggregate type on the fatigue life of grouted
macadams 127
Figure 6.19 – Influence of aggregate size/grading on the fatigue life of
grouted macadams 128
Figure 6.20 – Influence of grout strength on the fatigue life of grouted
macadams 129
Figure 6.21 – Influence of combined variables on the fatigue life of grouted
macadams 130
Figure 6.22 – Correlation between several grouted macadam fatigue lines 131
Figure 6.23 – The thermal cracking simulation apparatus 132
Figure 6.24 – Specimen used to determine the resistance of grouted
macadams to thermally induced cracking 134
Figure 6.25 – Mould used to manufacture thermal cracking specimens 134
Figure 6.26 – Thermal cracking specimen at the end of the test 135
Figure 6.27 – Definition of failure of grouted macadams in thermal cracking
tests 136
Figure 6.28 – Determination of surface strain at failure of grouted macadams,
in thermal cracking tests 136
Figure 6.29 – Surface strain distribution in thermal cracking tests of Grouted
macadams (unreinforced) 138
Figure 6.30 – Surface strain distribution in thermal cracking tests of Grouted
macadams (Glasgrid ® reinforced) 138
Figure 6.31 – Cracking pattern at the surface of the unreinforced specimen
at the end of the test (after 2 mm) 139
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