Description
Gravel
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Gravel for use as Pack material in tub wells for water supply.
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Gravel Sizes.
| Sr.
No. |
Pack | Particle size Range
in mm |
| 1 | Fine Gravel | 2.00 mm to 5.00 mm |
| 2 | Medium Gravel | 5.00 mm to 8.00 mm |
| 3 | Coarse Gravel | 8.00 mm to 12.00 mm
12.00 mm to 20.00 mm 20.00 mm and above as per Specification. |
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The gravel for use as pack shall be free from impurities, such as shale, mica, feldspar, clay, sand, dirt, loam, hematite and organic materials.
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Physical requirement like
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SiO2 about 96.00%
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Specific gravity not
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Porosity not
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Hardness not
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The gravel shall be of sub - rounded to rounded grains with minimum angular features.
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Ref. Standard
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IS:4097
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