» Soil Testing
» Specific Gravity
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.
The equipment mentioned below can be used to test a wide range of materials
from clay to sand and gravel smaller than 10 mm.
IS: 2386 (Part 3)-1963
Consists of a 1 kg Glass Jar with Brass Cone, Locking Ring and Rubber Seal)
Sample Riffle Divider
IS: 1607-1977, 2720, ASTM C 136, D271, D421,
D422, D423, D424, D427, D451, D452, D457, D806, BS: 812, 1377, AASHO T27,
For the rapid collection of true representative samples from aggregates,
sand and fillers, sample divider is required. Riffle Sample Divider consists
of a metal box fitted with a series of chutes of equal width, which
discharge the material alternatively in opposite directions into separate
pans. The chutes of the riffle are steep enough to allow rapid flow of the
material. Supplied complete with three containers.
Riffle Sample Divider, 13mm slot width, 14 slots
and approx. 2.1dm3
Riffle Sample Divider, 25mm slot width, 16 slots
and approx. 4.4 dm3
Riffle Sample Divider, 50mm slot width
Riffle Sample Divider, 75mm slot width
The sample extractors shown in this section meet
the requirements of Indian, British, ASTM and AASHO standards. Soil core
specimens can be extracted from sampling tubes with minimum disturbance.
Specimens of smaller dia can also be extracted from larger size samples.
Sample Extractor, Hand Operated, for 38 mm
This extruder is used for taking sample core specimens of 38 mm dia from
sampling tube the outfit comprises one each of:
Sample Extractor Frame Screw Type with a Wire Sample Trimmer
Jarring Link for driving the Sampling Tube of 38 mm dia
Adapter with locking Screw for fitting the 38 mm dia Sampling Tubes
to Jarring Link
Split Mould 38 mm dia x 88 mm long provided with Quick Release
Clamps. It can be fitted to Sample Extractor
Split Mould 38 mm dia x 76 mm long.
Sampling Tube unrelieved, 38 mm dia x 200 mm long pair.
Sample Extractor, Hand operated, universal
This extruder is used for taking sample core specimens of 38 mm, 50 mm, 75
mm and 100 mm dia from sampling tube
Sample Extractor, motorised. All purpose
This Extractor has been specially designed to overcome the difficulties
faced in extracting specimens from long sampling tubes
- High efficiency hydraulic pump
- Power pack with quick release coupling
- Manual operation possible on power failure
- Eject soil from sampling tubes and moulds up to 60 cm in length and
38mm to 150mm in dia by a single operation..
Allows direct transfer of soil from field sampling tubes, proctor and CBR
moulds into 38mm dia tubes with minimal disturbance
In - Situ Sampling
Hand Boring and Sampling Equipment
Shallow borings for investigations of foundations,
highways and runways can be carried out by hand augurs. The range of auger
outfits, sampling outfit and samplers listed below can be used to obtain
disturbed or undisturbed samples from reasonable depths.
Sampling Auger Outfits
ASTM D 1452
Hand-operated screw-type augers as well as post hole (blade type) augers
are available in different sizes as listed below. The screw-type auger can
be used both for advancing the hole and for disturbed sampling. The auger
outfit is supplied with an extension rod, T-piece and a tubular handle.
Additional extension rods are also available for sampling at deeper
Sampling Auger Outfit Blade Type, 75 mm dia
Sampling Auger Outfit Blade Type, 100 mm dia
Sampling Auger Outfit Blade Type, 150 mm dia
Extension Rods for use with the above-mentioned Auger Heads, one
meter in length, threaded at both ends with Hexagonal Couplings.
Handle and T-piece
Samplers for collecting undisturbed samples of soil
from different depths are available. Samples of dia ranging from 38 mm to
150 mm and length ranging from 50 mm to 300 mm can be obtained
Sampling Tube, 38 mm dia
38 mm dia sampling tubes are available in unrelieved
type. In this type, the internal dia is uniform throughout the length.
38mm dia x 150mm long unrelieved.
38mm dia x 200mm long unrelieved.