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Rock – Unwashed, 1.5” Maximum

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Used for many of the same functions as the smaller diameter ¾” Max rock, but where a coarser rock is specified or desired.

Sieve Results

ASTM C136 / AASHTO T27
Sieve Size% Passing
ASTM D4791 | Ratio=1:5
50.0 mm (2")100
37.5 mm (1-1/2")100
25.0 mm (1")60
19.0 mm (3/4")17
12.5 mm (1/2")3
9.5 mm (3/8")1
2.36 mm (No. 8)2
0.075 mm (No.200)0.6

Test Results

ASTMAASHTO
Physical Properties
Result
C 29T19Unit WeightUnit Weight, lbs./cu.ft.103
Voids36%
TypeRodded
C131T96L.A. AbrasionSmall Coarse LossB/500%
Grading/Revolutions18%
C 127T85Coarse Specific Gravity & AbsorptionBulk Specific Gravity (dry)2.632
Bulk Specific Gravity, SSD2.618
Apparent Specific Gravity2.656
Absorption0.5%
C 88T104SoundnessCoarse Soundness Loss0.2%
Sodium No. of Cycles5
Fine Soundness Loss%
Sodium No. of Cycles%
C40T21Organic ImpuritiesCoarse AggregateLighter Plate #1%
C142T112Clay / Friable ParticlesCoarse Aggregate0%
Fine Aggregate%
D5821 Fractured Face1 or 2 Faces1 or 2 Faces
Fractured Face, %56%
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