T 166 Bulk Specific Gravity using SSD Flashcards
Aashto T166 methods A&B measure the bulk specific gravity of loose uncompacted HMA mixtures?
False
The main difference between methods A and B is?
The approach of measuring the bulk volume of HMA specimen
The main difference between methods C and methods A/B is?
The approach for measuring the dry mass of the HMA specimen
Bulk specific gravity and absorption are reported to the nearest?
Thousandth and hundredth respectively
T166 may be used for open graded HMA specimens that absorb more than 2.0% of the water by volume?
False
At what temperature should the water bath be for method A?
77 ± 2°F
Any water that seeps from the SSD specimen during the weighing operation is considered part of the saturated specimen?
True
You have performed method A procedures to determine the bulk specific gravity of a dried specimen. The following data was obtained: A=4463.7 B= 4477.3 C=2618.9 Calc bulk specific gravity.
2.402
Using the data in question 8 determine the percent of water absorbed by volume.
0.73 percent
You’ve performed the method B procedure to determine the bulk specific gravity of a dried specimen. The following data was obtained: A=4831.5 B=4842.3 D=7439.7 E= 10271.0 Calc bulk specific gravity.
2.403
Using the data from question 10 determine the percent of water absorbed by volume.
0.54
What temperature should the water bath be?
77 ± 2°F
Constant mass shall be determined by the loss of no more than how much weight?
0.05%
The diameter of the cylindrically compacted or cored specimen should be how much larger than the max aggregate size?
4x
The thickness of the cylindrically compacted or cored specimen should be how much larger than the Max aggregate size?
1.5 X
Method A needs what kind of water?
Clear potable water
Method B needs what kind of water?
Distilled water
When reporting results what else should be reported?
Absorption
