Answer / rm vishwakarma

Specific gravity is the ratio of the densities of material
& distilled water. Because the sp. Gr. is unitless quantity.

Answer / harshal.s.khode

Specific gravity is defined as the ratio of the unit weight
of soil solids to unit weight of water. The Specific
Gravity is needed for various calculations purposes in Soil
Mechanics, e.g. void ratio, density and unit weight.

For Sandy soil, i.e. soils mostly made of quartz, Specific
Gravity can be accurately estimated to be about 2.65,
whereas for silty and clayey soils, it may vary from 2.6 to
2.9.

Answer / balachandar

it varies from 2.6 to 2.8 it depends on the type of the soil

Answer / sjtbehera

not air it is calculated from water

Answer / balvinder bhagat

2.65

Answer / tapas roy

Sp. gravity is the soil is define as a ratio of the wt.of
given volume of soil at a given temp. to the wt. of equal
volume of distilled water at that tem.
Both of wt. beging taken in air....As per IS specification
standered temp. is 27 deg celcies.....'Tapas Roy"

Answer / rajesh.d.v.s.p.

it will changes soil to soil

Answer / pradeep tamil

Specific gravity is the ratio of the weight in air of a
given volume
of a material at a standard temperature to the weight in
air of an equal volume of distilled water at the same
stated temperature.

Answer / jignesh

soil has no specific gravity.

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