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

Sieve Results

ASTM C136 / AASHTO T27
Sieve Size% Passing*
AASHTO M145
ASTM D4791 | Ratio=1:5
150 mm (6")100
100 mm (4")100
75.0 mm (3")100
50.0 mm (2")90
37.5 mm (1-1/2")87
25.0 mm (1")83
19.0 mm (3/4")80
12.5 mm (1/2")70
9.5 mm (3/8")64
4.75 mm (No.4")45
2.36 mm (No. 8)30
2.00 mm (No. 10)27
1.18 mm (No. 16)20
0.425 mm (No.40)14
0.300 mm (No.50)13
0.150 mm (No.100)10
0.075 mm (No.200)7.1

Test Results

ASTM AASHTO
Physical Properties
Result*
C 29T19Unit WeightUnit Weight, lbs./cu.ft.116
Voids28%
TypeRodded
D1557T180Modified ProctorMax. density, lbs./cu.ft137.6
Optimum Moisture7.5%
ASTM C535 L.A. Abrasionlarge Coarse Loss20%
Grading/Revolutions3/1000%
C 127T85Coarse Specific Gravity & AbsorptionBulk Specific Gravity (dry)2.565
Bulk Specific Gravity, SSD2.594
Apparent Specific Gravity2.643
Absorption1.1%
C 88T104SoundnessCoarse Soundness Loss0.9%
Sodium No. of Cycles5
Fine Soundness Loss%
Magnesium No. of Cycles%
D1883T193CBRSurcharge = 10lbs CBR @ 0.1"99
Swell% = 0.0% CBR @ 0.2"258
D5821 Fractured Face1 or 2 Faces1
Fractured Face, %100
D2487 Soil ClassificationGroup SymbolCU = 5.96
Group NameCC = 1.49