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Security Survey Equipment
General Items
AZA 0854 LIQUID LIMIT DEVICE (MOTORISED)
Same as AZA 0853 but fitted with a motor geared down to give
approximately 120 rpm. Suitable for operation on 230 V A.C.,
Single Phase, 50 Cycles.
Spares :
Casagrande grooving tool. ASTM grooving tool, height block,
1cm high.
Category: Soil
Related products
AZA 0850 LINEAR SHRINKAGE MOULD
AZA 0852 SEMI AUTOMATIC CONE PENETROMETER
BS 1377:2
Specification:
Used to determine the moisture content at which clay soils pass from a
plastic to a liquid state. Two Version are available. One the standard one
& the other is semi-automatic with timer where the cone is allowed to free
fall for a period of 5 seconds including one each of 50 gm. & 100 gm.
weight, one penetration cone, preset counter & measuring cup.
AZA 0853 LIQUID LIMIT DEVICE WITH COUNTER
IS 2720 (PART V), BS 1377-2 , ASTM D 4318
Specification:
Casagrande method in mechanical form is known as liquid limit method and has been in use for soil mechanics for a
number of decades. The liquid limit data of soils is useful to correlate mechanical properties of soil, such as
compressibility and lower shear strength. Liquid limit is the water content at which soil passes from zero strength to an
infinite strength, hence the true value of liquid limit cannot be determined.
For determination purpose liquid limit is that water content at which a part
of soil, cut by a groove of standard dimensions, will flow together for a
distance of 1.25cm under an impact of 25 blows in a standard liquid limit
apparatus. The soil at the water content has some strength which is about
0.17N/cm. sq. (17gms/sq.cm.) . At this water content soil just passes
from liquid state to plastic state.
It consists on a brass cup held on an adjustable bracket.
The cup can be adjusted for a fall of 1 cm and can be raised an dropped
on a rubber base of standard hardness by cam action. Complete with one
Casagrande grooving tool, one ASTM grooving tool and a height gauge
block. A counter to register the number of blows.
AZA 0862 PLUMMET BALANCE
Conventionally particle size distribution analysis is carried out using pipette and
hydrometer methods. Whereas in hydrometer method it is possible to determine
particle sizes in the range 75microns, the method involves computation and it is
time consuming. The pipette method can be used for determining only the
percentage of specific sizes less than 0.02, 0.006 and 0.002mm as a percentage
of total soil sample.
The plummet balance method to determine sub sieve particle size for the entire
range is very rapid and only manipulation of height of the balance, so that plummet
sinks to the right depth is required.
The percentage of soil in suspension is directly indicated by a pointer over a
graduated scale.
A vertical rod is mounted on a sturdy base having leveling screws.
A pointer with steel pivots turns is jewel bearing an moves over a graduated scale.
Scale graduations are market 0-100% x 2%
To the other end of the pointer a plummet is hanged. Rack and pinion arrangement is provided on the vertical rod for
adjusting the height. Supplied with a chart showing relationship between “K” and temperature of suspension of
soils of varying specific gravity from 2.4 to 2.8 to help in solving stroke's equation. Supplied complete with one
Perspex plummet one measuring jar and one rider weight for zero adjustment and rider weight for adjusting the
pointer to 100%.
AZA 0865 HEAVY COMPACTION TEST
AZA 0868 PROCTOR NEEDLES (SPRING TYPE)
Specification:
The instrument consists of a needle attached to
a spring loaded plunger, the stem of which is
calibrated to read 0 to 40 kg division. Long
stem is graduated at every 12.5mm to read
depth of penetration and for use with needles of
larger areas . The small penetration stem is also
graduation in 12.5mm division and is used
with needles of smaller areas. Needle points
one each of 0.25, 0.5, 1.0, 1.5, 2.0, 3.5 and
6.0 sq cm. And one Tommy pin is supplied.
Complete as above in a wooden carrying
case.
AZA 0870 VICKSBERG PENTROMETER (PROVING RING TYPE)
This is fork determining the bearing capacity of sub grades or
for compaction control. It also used for rapidly of soils in
shallow exploration work.
Specification:
Consists of a study handle under. Which is fixed a sensitive
proving ring. An extension piece is fixed to the bottom of the
proving ring and carries a detachable penetration cone at its
tip. Proving ring capacity 100 kg (1kn) and 0.002mm dial
gauge provided indicates the penetration load applied.
An optical viewer is provided to facilitate reading the dial
gauge by the operator. Simplified for single person operation.
A calibration chart is provided for the proving ring. Instrument is
complete in a wooden carrying case.
AZA 0873 SPEEDY MOISTURE ZI 3027 METER (D2 LARGE)
ASTM D 4944 AASHTO T 217
Specification:
The unit consists of a pressure vessel with clamp for sealing cap,
capacity is 20 gms. Rubber sealing gasket, pressure gauge
calibrated in percentage moisture content 0-25% x 0.25% on the
wet weight basis, an electronic balance for weighing sample, a
scoop for measuring carbide reagent, a bottle of reagent, one
cleaning brush and a set of 4 steel balls for thorough mixing .
Complete in highly polished wooden carrying case with handle.
