Geo-Technical Engineering Lab Equipment

Conforming to specifications and tolerance in accordance to I.S. 2720 Part XXXI consists of followings:

• Loading jack with `U` bracket capacity 100 KN (10000 kgf.) specially designed for use with field C.B.R. test apparatus carries a hand operated two speed screw jack fitted with `U`bracket. A hexagonal adaptor is provided to fix a proving ring. A thrust bar, which passes through the `U` bracket, is screwed on to a proving ring, which protects the proving ring when the loading is eccentric.


• Swivel head for the loading jack.


• Extension set, consisting of 1 length of 5cm, 2 length of 10cm, 1 length of 30cm,1 length of 50cm and one length of one meter used as spacers between the proving ring and penetration piston.


• Connector set having eight connectors for coupling the penetration piston and proving ring assembly.


• Datum bar assembly consisting of two stands and one mtr long bar.

 

Adjustable bracket for dial gauge.

• Annular metal weight 5 kg, 250mm dia with 53mm dia hole.


• Slotted weight, 5 kg 215 to 250mm diam with 53mm dia slot


• Slotted weight 10 kg, 215 to 250mm dia with 53mm dia slot.


• Proving ring capacity 5000 kgf (50 KN) fitted with dial gauge 0.002mm with calibration certificate.


• Dial gauge for strain measurement 0.01mm x 25mm travel.

This is for estimating the bearing capacity of shallow foundations in situ and for the design of flexible pavement. In the test procedure a steel plate is subjected to gradually increasing load and settlements of the plates recorded. The out fit consists of50 tonne hydraulic jack with separate pumping unit fixed to it a 0 - 500KN x 0.5KN. 1No. Pressure gauge and flexible metal pipe5 mtr. long 1No. Special ball and socket arrangement between the jack and the bearing plate 1 No. Extension rod 12mm dia x 25 cm long for taking dial gauge readings 16 Nos. Magnetic base with female thread on top for holding extension rod 4 Nos. Top end plate, 50mm, dia with male thread for fitting onto the extension rod sand positioning the dial gauge plunger 4 Nos. Column 15cm dia x 25cm long with flanges complete with four bolts and nuts 2 Nos.Column 15cm dia x 50cm long with flanges complete with four bolts and nuts 1 No. Bridge support of welded steel angle construction, 5 mtr. Span and stands approximately 30 cm. High. Fitted withtwo quick release clamps a for positioning and holding the dial bracket 2 Nos.Other Details: Plane M.S. plate 60cms x 60cm . Square x 60 cms. Square x 25mm thick. Plane M.S. plate 45cm x 45cm x squarex 25mm thick. Plane M.S. plate 30 cms x 30 cms x 25mmthick. Dial Gauge 0.01mm x 25mm - 4 Nos. Accessories: Plane M.S. 75mm x 25mm thick Plane M.S. 50cm x 25mm thick Grooved M.S. plate 60cms x 60cms x 25mm thick Grooved M.S. plate 45cms x 45cms x 25mm thick Grooved M.S. plate 30cms x 30cms x 25mm thick Grooved M.S. plate 75cms x 75cms x 25mm thick

PycnometerUseful to determine specific gravity of clays, sand and gravel of size smaller than 10 mm.Salient Features

Specifications : Comprises a 1 kg glass jar with brass cone, locking ring and rubber seal.
Spare: Rubber seal.

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The apparatus is used for the laboratory determination of permeability of soils using a constant or a variable head. This test is recommended for soils with co-efficient of permeability in the range of 10 x -3 to 10 x -7cm/sec. The maximum particle size of the soil which can be tested in the mould is 10 mm.