SHRP-A-379 traducir

10.4 Sampling
T164.
10.4.1 Plant-mixed asphalt concrete mixtures shall be sampled in accordance with
10.4.2 Laboratory-mixed asphalt concrete mixtures shall be sampled, prepared and
aged in accordance with T164.
10.4.3 Compacted roadway samples shall have a cut test specimen size that is
102 5:6 mm in diameter by 152 5:6 mm in height.
10.5 Heat the asphalt concrete to the desired compaction temperature.
10.6 Compact the sample in accordance with M-002 or M-008.
NOTE2.--Compacta sufficientamountof materialto ensurethat thefinaltestspecimensizeis
102+ 6 mmin diameterby 152 4-6 mmin height.
10.7 Cool the compacted test specimen to 60°C 5: 1°C in an oven set at 60°C.
NOTE3.--Coolingto 60°Cwilltakeapproximately2 h forthe testspecimensizestatedin note2.
10.8 After cooling the test specimen to 60°C, level the specimen ends by applying a
static load to the specimen at a rate of 72.00 + .05 kN/min. Release the load at the same
rate when the specimen ends are level or when the load applied reaches a maximum of
56 kN.
10.9 After cooling the test specimen at room temperature overnight, extrude the
specimen from the compaction mold.
10.10 Place the compacted test specimen on a rack in the forced draft oven for
120 5:0.5 h at a temperature of 85°C 5: I°C.
10.11 After 120 h, turn the oven off, open the doors, and allow the test specimen to
cool to room temperature. Do not touch or remove the specimen until it has cooled to room
temperature.
NoTE4.--Coolingto roomtemperaturewilltakeapproximatelyovernight for the testspecimensizestated
in note21.
10.12 After cooling to room temperature, remove the test specimen from the oven.
The aged specimen is now ready for testing as required.
11. REPORT
11.1 Report the following information:
163