Geotextile Testing Instruments

Meets: - ASTM D-3787
The geotextile specimen is clamped to obtain an inside diameter of 44.45 mm and force is applied through steel ball having 25 mm diameter at the rate of 305 mm/min and continue at that speed until the specimen bursts. Record to the nearest 0.5 N the ball-bursting strength of the specimen.

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.

Note: - This machine is also available with servo controlled unit having 5-30 rpm speed with digital counter.

ASTM D 5321-02, EN ISO 12957-1:200
This test method covers a procedure for determining the shear resistance of a geosynthetic against soil or a geosynthetic against another geosynthetic, under a constant rate of deformation.

Note: - Direct shear apparatus is to be order separately.

Meets:-ASTM-D 4886-91, IS-14714, EN ISO 13427:199
This test method covers the determination of resistance of geotextiles to abrasion using an abrasion tester. This test method at this point has only been evaluated for geotextiles— not geomembranes, grids, etc. Therefore, the test method is designated for geotextiles, not geosynthetics, as all products may not lend themselves to this test method for abrasion. If later developments indicate a wider scope for this test method, appropriate changes will be made. The assembly should be two parallel, smooth plates, one of which makes a reciprocating motion. The speed of the reciprocating plate should be adjustable between 10 and 115 double strokes per minute. The stroke length should be 25 mm (1 in.). The second plate is rigidly supported by a double-lever assembly to provide free movement in a direction perpendicular to the reciprocating plate. This plate is stationary during the test and must be well balanced so that a vertical load can be maintained by means of dead weights. Both plates are equipped with clamps at each end to hold the test sample and the abrading medium. The clamps have gripping surfaces adequate to prevent slippage of the specimen or the abrading material during the test.

Meets:-IS-16653
The test method simulates abrasion load on geo material. A mixture of stone chipping and water passes over geo material beg sample fixed in rotating drum.
Details are as follows.

• Test Sample size 280×170 mm
• Drum Size 980 mm octagonal.
• With Digital revolution controller (At 5000±5 revolution revering type) with revolution counter (Variation of 20 revolution at 40000 count)
• AC drive
• Branded Gear box with 1 HP 3 phase motor.
• Power transmission by Chain and pulley.
• Sample trolley type Tray.
• Voltage requirement 220 volts 50 HZ 1 phase

Meets: - IS-14739
It consists of a loading frame for the specimen to be mounted, the load to be correctly applied, and strain monitored. The connections between jaws and loading apparatus have sufficient freedom that the load is applied uniformly across the width of the specimen. The jaws shall grip the specimen with sufficient firmness to allow minimum slippage.

Double walled inside S.Steel and outside M. Steel painted with stove enamel door provided with glass window. Stainless steel water bath with heater is provided inside the chamber to create humidity in the chamber, provided with refrigeration to control temperature range from 5ºC to 60ºC +/- 2ºC and humidity is ambient to 90% Stainless steel water bath with heater is provided inside the chamber timer is provided to regulate the cyclic illumination. +/-5% and fitted with digital temp. & humidity indicator cum controller. Humidity is displayed in percentage.

Double walled construction. Inner chamber made of anodized Aluminum / S. Steel Outer body made of mild steel is powder coated/painted. Temperature controlled by Digital Indicator and controller. The gap between the inner & outer chamber is filled with high grade glass wool to avoid the thermal losses and having perforated adjustable trays. Two pilot lamp on/off switch. Work on 220/230 VAC. Many Different size are available

The Bursting Strength Tester is designed to find bursting strength of geotextile/fabric/leather/paper/paper board. A test specimen is held between two annular clamps under sufficient pressure to minimize slippage. The upper clamping surface which is in contact with the test specimens has a continuous spiral grooves. A circular diaphragm of rubber is clamped between the lower clamping plate & pressure cylinder so that before the diaphragm is stretched by pressure underneath it the center of its upper surface is below the plane of the clamping surface. The equipment is fitted with a motor driven cam mechanism, which increases fluid displacement on the lower side of the diaphragm at a specified rate. The equipment is fitted with an arrangement, which automatically brings down the pressure and stops the motor on completion of the test cycle. A maximum reading type pressure gauge gives the bursting pressure. The equipment is raggedly designed to give a long & trouble free life.

TECHNICAL SPECIFICATION

• Capacity: 35kg /cm² and above
• Opening in upper clamp: 30.5 mm diameter
• Opening in lower clamp: 38.1 mm diameter
• Rate of fluid displacement: 95 cc/ minute
• Test fluid: Glycerin
• Gear Box: Worm reduction type

Note: Digital type pressure gauge with and without pneumatic clamp type also available.

GSM Round Cutter offered come fitted with precision finished and superior grade high strength blades as well as other associated metal parts that ensures uniform cutting of geotextile and other material. We have two type of GSM cutter details are as follows.

Technical Data:

• Body of the Machine - Cast Iron
• Cutting Tool - Bottom Pad & Blade
• Diameter Size: 112.8 mm
• Pad & Blade life up to 6,00,000 Cuttings
• Machine Weight - 10.5 Kgs Approx

Technical Data:

• Body of the Machine - Cast Iron
• Cutting Tool - Bottom Pad & Blade
• Diameter Size: 140 mm
• Pad & Blade life up to 6,00,000 Cuttings
• Machine Weight - 14.5 Kgs Approx

Colour Matching Cabinet with D65. TL84.Illuminant A.UV-Light. CWF (Cool White Fluorescence.) D50.Simulated Sunlight. CDL (Cool Day Light.)

Dimension :

• Outer dimension : 720mm x 520mm x 650mm
• Viewing area : 595mm x 460mm x 410mm

Air Permeability tester up to with four different type adaptor 5 cm2, 10 cm2, 20 cm2 & 38 cm2, with Manometer & Rota Meter..

Used to Draw Sample for testing from the sheet. Made of high Quality Die steel with accuracy. Available in many size.