what is sieve | sieve sets for soil sand and aggregate

What is sieve

Sieve is a device for separating wanted materials from unwanted material or for describing the particle size distribution of a sample, typically utilizing a woven cover such as a mesh or web or metal.

what is sieve | sieve sets for soil sand and aggregate

Sieving

Soil has varying sizes from less than 0.001 mm to greater than 300 mm (soil particle sizes by ASTM). how can we separate the same size of a particle from the total sample sieve analysis or sieving is the only simple technique used for the separation of the same size particle from the total sample of different sizes. Depending upon the types of particles to be separated, sieves with different kinds of holes are used.

sieve are assigned specific names either in numbering or in inches. (sieve names, sizes according to ASTM)

Sieves are also used to separate gravel from the sand and silt and clay etc. Sieving plays an important role in the separation of gravel, sand, silt, and clay in sieve analysis test of soil.

sieve analysis (or gradation test) is a method or procedure used (commonly used in construction material testing, sedimentology, civil engineering) to assess the particle size distribution (also called gradation) of a granular material.

sieve names in numbering and inches, sieve sizes according to ASTM

Different types of sieve are used in seive analysis of gradation of soil and aggregates
S.NoAlternate designation(inches and numbering)standard designation(mm)Micro-meter or micron
15 inch125 mm125000 μm or micron
24.24 inch106 mm106000 μm or micron
34 inch100 mm100000 μm or micron
43 1/2 inch90 mm90000 μm or micron
53 inch75 mm75000 μm or micron
62 1/2 inch63 mm63000 μm or micron
72 inch50 mm50000 μm or micron
81 1/2 inch37.5 mm37500 μm or micron
91 inch25 mm25000 μm or micron
103/4 inch19 mm19000 μm or micron
115/8 inch16 mm16000 μm or micron
120.53 inch13.2 mm13200 μm or micron
131/2 inch12.5 mm12500 μm or micron
143/8 inch9.5 mm9500 μm or micron
155/16 inch8 mm8000 μm or micron
161/4 inch6.3 mm6300 μm or micron
17No. 44.75 mm4750 μm or micron
18No. 82.36 mm2360 μm or micron
19No. 102.00 mm2000 μm or micron
20No. 121.7 mm1700 μm or micron
21No. 161.18 mm1180 μm or micron
22No. 300.600 mm600 μm or micron
23No. 400.425 mm425 μm or micron
24No. 500.300 mm300 μm or micron
25No. 600.250 mm250 μm or micron
26No. 1000.150 mm150 μm or micron
27No. 2000.075 mm75 μm or micron
28No. 4000.038 mm38 μm or micron

Soil particle sizes (ASTM)

Particle Sizessize (mm)
up toFrom
Boulder –>300 mm
cobble30076.4
coarse gravel76.419.0
fine gravel194.75
coarse sand4.752.0
medium sand20.425
fine sand0.4250.075
silt0.0750.005
clay0.050.001
colloids < 0.001

Sieve sets for soil | Sand | aggregate

Sieve sizes are used in combinations of 5 sets for soil sieve #4, #10, #40, #100, #200.

for sand 7 set of sieve is used sieve #4, #8, #16, #30, #50, #100, #200.

for coarse aggregate also used 7 sets of sieve given in the table below.

Standard sieve set
Coarse aggregatesand/stone dustsoil
3 ” (75mm)#4 (4.75mm)#4 (4.75mm)
2.5″(63mm)#8 (2.36mm)#10 (2.00mm)
1.5″ (37.5mm)#16 (1.18mm)#40 (0.425mm)
1″ (25mm)#30 (0.600mm)#100 (0.150mm)
3/4″ (19mm)#50 (0.300mm)#200 (0.075mm)
1/2″ (12.5mm)#100 (0.150mm)
3/8″ (9.5mm)#200 (0.075mm)

 

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