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Rock – Washed, ¾” Maximum

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

Sieve Results

ASTM C136 / AASHTO T27
Sieve Size% Passing
ASTM D4791 | Ratio=5:1
25.0 mm (1")100
19.0 mm (3/4")96
12.5 mm (1/2")60
9.5 mm (3/8")32
4.75 mm (No.4")2
0.075 mm (No.200)0.2

Test Results

ASTMAASHTO
Physical Properties
Result
C 29T19Unit WeightUnit Weight, lbs./cu.ft.102
Voids38%
TypeRodded
C131T96L.A. AbrasionSmall Coarse Loss23%
Grading/RevolutionsB/500%
C 127T85Coarse Specific Gravity & AbsorptionBulk Specific Gravity (dry)2.624
Bulk Specific Gravity, SSD2.653
Apparent Specific Gravity2.701
Absorption1.1%
C 88T104SoundnessCoarse Soundness Loss0.2%
Magnesium No. of Cycles
Fine Soundness Loss%
Sodium No. of Cycles%
C40T21Organic ImpuritiesCoarse AggregateLighter Plate #1%
C142T112Clay / Friable ParticlesCoarse Aggregate0.0%
Fine Aggregate%
C123T113Lightweight PiecesCoarse Aggregate0.0%
Fine Aggregate%
D5821 Fractured Face1 or 2 Faces1 (Test Result 66)
Fractured Face, %2 (Test Results 60)

Chip – Washed, 3/8” x #16

Washed ‘pea gravel’ that can be used as under slab material or certain backfill applications.

Roadbase – 1.5” UTBC

High-quality roadbase that meets stringent UDOT specifications as well as demanding commercial applications.

Rock – Unwashed, 1.5” Maximum

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

Sand – Washed, Concrete

Washed sand produced to meet the highest standards for concrete production including U.D.O.T. and ASTM specifications.