river rock–
Southside 3/8" Pea Gravel

The key ingredient to small line portland cement concrete pump mixes, Southside
3/8" Pea Gravel
aggregate is also used as a backfill around underground storage tanks. It is an ingredient of Southside Class II Permeable, 3/8" concrete aggregate mix (dry aggregate material only) and other special blended products. In landscaping applications it is used as decorative aggregate, pathway gravel and as an ingredient of the streambed gravel blend. This material has a tendency to be light tan or brownish color when dry.

Sieve Analysis
INCHES MM / UM SOUTHSIDE GRADING ASTM C-33
1/2" 12.5 mm 100 100
3/8" 9.5 mm 97 85 – 100
1/4" 6.3 mm 45  
#4 4.75 mm 31 10 – 30
#8 2.36 mm 1 0 – 10
#16 1.18 mm 1 0 – 5
ASTM SPECIFICATIONS & PHYSICAL PROPERTIES

Specific Gravity

2.5