Fill – Hardpac, 3/8” Minus

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Whether used as fill for large-scale commercial projects, trench backfill or as a fine-graded commercial roadbase, Geneva Rock’s crusher fines meet a wide array of applications.

Sieve Results

Sieve Size% Passing
12.5 mm (1/2")100
9.5 mm (3/8")100
6.3 mm (1/4")95
4.75 mm (No.4")86
2.36 mm (No. 8)59
2.00 mm (No. 10)42
1.18 mm (No. 16)38
0.600 mm (No. 30)27
0.425 mm (No.40)24
0.300 mm (No.50)20
0.150 mm (No.100)15
0.075 mm (No.200)10.6

Test Results

Physical Properties
C 29T19Unit WeightUnit Weight, lbs./cu.ft.116
D1557T180Modified ProctorMax. density, lbs./cu.ft132.5
Optimum Moisture7.7%
D698T99Standard ProctorMax. density, lbs./cu.ft127.4
Optimum Moisture8.7%
D4318T89/90Liquid/Plastic LimitLiquid Limit0
Plastic Limit0
Plasticity IndexNP
C 128T84Fine Specific Gravity & AbsorptionBulk Specific Gravity (dry)2.545
Bulk Specific Gravity, SSD2.581
Apparent Specific Gravity2.641
C 88T104SoundnessCoarse Soundness Loss%
Magnesium No. of Cycles
Fine Soundness Loss1.6%
Sodium Sulfate No. of Cycles5%
C 1252T304Fine Aggregate AngularityUncompacted Voids44.6%
Method C (as received material)%
C40T21Organic ImpuritiesCoarse AggregateLighter Plate #1%
C142T112Clay / Friable ParticlesCoarse Aggregate0.0%
Fine Aggregate%
C123T113Lightweight PiecesCoarse Aggregate0.0%
Fine Aggregate%
D1883T193CBRSurcharge = 10lbs CBR @ 0.1"60
Swell% = 0.0% CBR @ 0.2"99
D2487 Soil ClassificationGroup SymbolGW-GM
Group NameWell-graded gravel with silt and sand
D2488 Soil Description & IdentificationGroup SymbolCu=66.7 Cc=1.8
k (cm/s)

Chip – Washed, Gyro #4 x #16

Washed fine angular chip

Chip – Washed, Standard, 3/8” x #16

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

Chip – Washed, Tank Bedding, 3/8” x #8

Washed chip that meets underground tank bedding specifications.

Fill – Structural, Rocky – 3″ Minus

Fill- Structural A-1-a fill graded to a 3” minus.

Fill – Structural, Rocky Grizzly

Rocky, coarse and angular A-1-a fill used in a variety of applications including backfill replacement in muddy or unstable soils.