Updating Bituminous Stabilized Materials Guidelines Mix Design Report Phase II
Moisture Sensitivity: Part II (Validation) - Asphalt Academy
Moisture Sensitivity: Part II (Validation) - Asphalt Academy
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3. TEST RESULTS<br />
The use of vinite or reinforced rubber mat minimises the direct abrasion of wheel on the<br />
specimens. However, during testing the vinite layer seen not prevent ravelling once the<br />
materials start disintegrating. The ingress of water into specimen under trafficking destroys<br />
cohesion of the mix resulting in loss of aggregate. Heaving along the edges of the wheel path is<br />
not a primary failure. Nevertheless, aggregate loss does prevail in the wheel path resulting into<br />
ravelling deformation. The ravelling depth is recorded on profilometer measurement on each<br />
BSMs. The results for Initial test and additional tests are presented in the following subsections:<br />
3.1 Initial tests on BSMs<br />
Table 3: Ravelling-depth after MMLS3 trafficking on wet BSMs long cured specimen<br />
BSM-<strong>Mix</strong> type<br />
specimen<br />
(new labelling<br />
style)<br />
Preliminary<br />
specimen<br />
labelling style<br />
No of load repetitions<br />
75 000 100 000<br />
Ravelling-depth [mm]<br />
H+1C-E01 A1* 0.074 0.009<br />
H+1C-E01 A2 0.073 0.003<br />
H+1C-E01 A3 0.039 0.119<br />
H+1C-E01 A4 0.002 0.079<br />
H+1C-E01 A5 0.006 0.034<br />
H+1C-E01 A6 0.031 0.068<br />
H+1C-E01 A7 0.088 0.116<br />
Average 0.045 0.061<br />
Std 0.034 0.048<br />
Cov 0.78 0.78<br />
* A’s are preliminary labelling which changed to new format.<br />
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