1/4" River Sand
1/4" River Sand
(OP)
Does anyone have a gradation/spec for 1/4" River Sand? I assume that the material should be rounded aggregate and not washed to remove the fines.
The material is used for bedding electrical conductors to provide thermal conductivity with no sharp edges to damage the conductors.
Dik
The material is used for bedding electrical conductors to provide thermal conductivity with no sharp edges to damage the conductors.
Dik





RE: 1/4" River Sand
RE: 1/4" River Sand
Dik
RE: 1/4" River Sand
1/4" 'RIVER SAND'
ROUNDED MATERIAL, CONSISTING OF HARD DURABLE PARTICLES FREE OF CLAY AND SILT LUMPS, CEMENTATION, SOLUBLE MATERIALS, ORGANIC
MATERIAL, FRIABLE MATERIAL, FROZEN MATERIAL AND OTHER DELETERIOUS MATERIALS
FILL SHALL CONFORM TO:
SIEVE SIZE (ASTM) PERCENT PASSING
1/4 INCH 100
NO.10 80-95
NO.20 75-90
NO.40 50-85
NO.80 20-60
NO.100 05-30
NO.200 0-10
Anything look 'out of whack'?
Dik
RE: 1/4" River Sand
Either a)call the local materials suppliers and see what they have that might work or b)give a sufficiently loose spec such as:
100% passing 1/4, 20% passing #100 and should be "well graded"
RE: 1/4" River Sand
Typical for my area, Upper Colorado River, to insure enough fines.
#4 70%-100%
#10 60%-80%
#40 25%-40%
#100 8%-20%
RE: 1/4" River Sand
RE: 1/4" River Sand
RE: 1/4" River Sand
Dik
RE: 1/4" River Sand
RE: 1/4" River Sand
Dik
RE: 1/4" River Sand
3/8" - 100% passing
#4 - 95-100
#8 - 80-100
#16 - 50-85
#30 - 25-60
#50 - 10-30
#100 - 2-10
DRG
RE: 1/4" River Sand
Dik
RE: 1/4" River Sand
Dik