Figure 3-10 shows a comparison of the measured moisture
contents taken from the cone test material for each of the
photographs shown in Figures 3-9. The data clearly showed
a significant difference between the moisture contents of the
material with and without P200 material after the start of SSD
condition. The moisture contents varied by approximately
2 percent for the samples tested after the material had reached
SSD by the definition set forth in AASHTO T 84. This provided
the evidence that the P200 material of the RC limestone
caused a difference in the moisture contents determined by
AASHTO T 84 for the two types of material. This was likely
due to the cohesive nature of these fines that allowed the
material to retain the cone shape even after it had reached the
SSD condition.