Washed angular rock used in concrete mix designs as well as gravel backfill where a very clean rock is specified.

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Sieve Results

ASTM C136 / AASHTO T27
Sieve Size% Passing*
ASTM D4791 | Ratio=5:1
25.0 mm (1")100
19.0 mm (3/4")99
12.5 mm (1/2")64
9.5 mm (3/8")31
4.75 mm (No.4")3
2.36 mm (No. 8)1
0.075 mm (No.200)0.4

Test Results

ASTM AASHTO
Physical Properties
Result*
C 29T19Unit WeightUnit Weight, lbs./cu.ft.94
Voids41%
TypeRodded
C131T96L.A. AbrasionSmall Coarse Loss19%
Grading/RevolutionsB/500%
C 127T85Coarse Specific Gravity & AbsorptionBulk Specific Gravity (dry)2.557
Bulk Specific Gravity, SSD2.587
Apparent Specific Gravity2.634
Absorption1.1%
C 88T104SoundnessCoarse Soundness Loss1%
Sodium Sulfate No. of Cycles5
Fine Soundness Loss%
Magnesium No. of Cycles%
C40T21Organic ImpuritiesCoarse AggregateLighter Plate #1%
C142T112Clay / Friable ParticlesCoarse Aggregate0%
Fine Aggregate%
C123T113Lightweight PiecesCoarse Aggregate0%
Fine Aggregate%
D5821 Fractured Face1 or 2 Faces1 = 100
Fractured Face, %2 = 100