Milestone Instruments

Uttam Nagar, Delhi

This is used for measuring the thickness of the geotextile. The thickness of the geosynthetic material can be measured with an accuracy of 0.001 mm (depend on the dial gauge accuracy) for thickness up to 10 mm with Foot pressure of 6.35 mm, 10 mm and 56.4 mm diameter. Dead weight mechanism is provided to apply desired pressure varying from 2, 20 to 200 kPa. Surface plate is grounded and is rust free to enable reproducible results.

Specification

• Thickness measuring resolution 0.01 mm or as desired
• Thickness measuring range 0.01-12.5 mm or as desired

De-Aired Tank is designed to remove dissolved gasses from ordinary clean water. The apparatus consists of a closed cylinder with hose attached to vacuum pump provided, which is controlled by PID controller.

The apparatus comprises a sieving unit, which allows testing of a specimen with an exposed sieving area corresponding having 148 mm diameter with a supported Grid of 1.4 mm diameter and mesh size of (101)mm to support the specimen during the test to avoid excessive deformation having the nozzle for discharge of water Fixing on the acrylic sheet cover for viewing the sample during test. The complete set is provided with the pan which has the drain nozzle for collate the water after test.

The unit is Digital Microprocessor control and speed regulating by servo controlled motor and the speed can be from 5 mm to 500 mm. This frame also be use with CBR test on soil, Marshall stability test on Bitumen and many more tests where speed required is with in the limit and maximum load is below 100 KN.

The apparatus consists of two test drums of 14 cm dia and 10 cm effective length with 16 nos. of 4 mm dia rods provided circumferentially at equal spacing to hold the geotextile specimen in position. Two troughs to contain the test drums are supported on horizontal axis, facilitating free rotation and capable of being filled with distilled water to a level of 20 mm below the drum axis. The clearance between the trough and the geotextile could be maintained at about 40 mm. The apparatus is provided with a motor drive and a change gear assembly to enable rotation of the drums at a speed of 20 rpm.

It is a motor driven mechanical compactor useful for soil compaction. Two sets of Rammers are provided The rammer assembly is provided with a ratchet and pawl arrangement to lift it from the top of the soil layer. When the rammer reaches the required height the pawl release the rammer which falls freely on soil surface. An automatic blow counter fitted to the compactor is used to set the number of blows. The base plate of the specimen mould is to be fitted to the rotating base plate of the instrument which marks 1/5" revolution per stroke. The equipment is suitable for operation on 230 V, 50 Cycles, Single Phase, A.C. supply

Used to determine the resistance to shearing of all types of soil specimens both consolidated and drained, undisturbed or remolded samples. Meets:- IS: 2720 (Part 13), ASTM D 3080, IS: 2720 (Section 1 - Part 39), IS: 11593-1986, IS: 11229 - 1985, 2720 (Part 13) - 1986 MILESTONE INSTRUMENTS offers the following models:

1. Direct Shear apparatus, 2 KN ManualSpecimen Size: 60 x 60 x 25 mm
2. Direct Shear apparatus, 2 KN MotorisedRates of Strain (mm/min): 1.25, Specimen Size: 60 x 60 x 25 mm Power Specifications: 230 V, 50 Hz, Single Phase, AC supply
3. Direct Shear apparatus, 2 KN, Motorised with Digital ReadoutRead Out: Digital Rates of Strain (mm/min): 1.25, Specimen Size: 60 x 60 x 25 mm Power Specifications: 230 V, 50 Hz, Single Phase, AC supply
4. Direct Shear apparatus, 2 KN, Type of Shear Measurement: Direct/Residual Operation: By stepper motor Rates of Strain: 0.00001 to 9.99999 mm/min Specimen Size: 60 x 60 x 25 mm Digital Display: Displacement and Speed with 0.00001 mm resolution Provided RS232 for PC connection Max vertical direct load: 3 kg/cm2 Power Specifications: 230 V, 50 Hz, Single Phase, AC supply
5. Pneumatic Direct Shear apparatus, 2KNDirect/Residual Shear Apparatus utilizes the pneumatic loading concept for applying the vertical load to the sample. It eliminates the need of loading weights used in dead weight-type systems. Type of Shear Measurement: Direct/Residual Operation: By stepper motor Vertical Load is applied by the pneumatic loading concept. Rates of Strain: 0.00001 to 9.99999 mm/min Specimen Size: 60 x 60 x 25 mm Digital Display: Displacement and Speed with 0.00001 mm resolution Provided RS232 for PC connection Max vertical direct load: 3 kg/cm2 Power Specifications: 230 V, 50 Hz, Single Phase, AC supply
6. Large Direct Shear Apparatus, Motorised, 50 KN (5, 000 kgf) IS: 2720 (Section 1 - Part 39), IS: 11593-1986 For testing sands, gravel, gravely clays and clay gravels for use in rolled fill embankments. Type of Shear Measurement:

Direct Operation: MotorisedRates of Strain (mm/min): 72 speeds Ranging from 0.0014 to 10.16mm/minSpecimen Size: 30 x 30 x 15 cmChange gears: 12Shear Load capacity: 50 kNVertical load capacity: 500 kN/m2Net weight: 990 kg Power Specifications: 220 V, 50 Hz, 1 phase, AC supply

The apparatus consists of

• Mould, 150 mm ID x 175 mm high M. steel
• Metal Tripod, for Dial Gauge
• Penetration Piston, 50 mm face dia
• Circular Metal Spacer Disc, with detachable handle, 148 mm dia x 47.7 mm height
• Perforated Plate, 148 mm dia, with adjustable Stem and Lock Nut
• Soaking Tank for six CBR mould
• Extension Collar, 150 mm ID x 50 mm high
• Annular Metal Weight, 2.5 kg, 147 mm dia with 53 mm dia central hole
• Slotted Metal Weight, 2.5 kg, 147 mm dia, with 53 mm dia slot
• Swell Plate
• Cutting Colla

The apparatus is used in specification tests of masonry cement and physical testing of quicklime and hydrated lime. Unlike older models, the newly designed unit incorporates a vacuum regulator and gauge system in place of the old mercury manometer and relief column. The complete unit consists of an aspirator pump, vacuum regulator, vacuum gauge, three-way stopcock, flask, rubber gasket, brass funnel, perforated brass dish, filter paper and hardwood stand.

These are used to measure the working and ultimate capacities of rock bolt anchors. Further, our products comprises of a central hole jack, hand pump with load gauge, directional control valve and only for central hole jacks above the capacity of 500kN, flexible pipes, truss high tensile test rod with coupling. Moreover, the load cell can be used for the measuring of pull out load and arrangement is provided for fixing dial gauge for estimating deflection against the load. In addition to this, we provide different size of adopters with the high tensile test rod.

This is for aggregates resistance to abrasion. The apparatus consists of a metal disc which revolves in a horizontal plane on a vertical shaft. A suitable attachment for holding the specimen with is axis vertical and its lower end pressed with a prescribed pressure against the surface of the disc (the distance from the centre of specimen to the centre of shaft being 25 cm) is provided. A convenient funnel for feeding sand continuously upon the rotating disc is also provided. The machine is fitted with a h.p. electric motor, driven through a reduction gear to give 28-30 revolution of the disc per minute. Suitable for operation from 220/230 volts single phase, A.C. supply