Material Testing , Bitumen , Asphalt , Aggregate Instruments

Laboratory Pulverizer

is a disc type grinder designed for grinding to produce a fine mesh sample in one operation. It is a self contained grinder furnished with a rotating disc having a planetary movement in a vertical plane. This feature gives added life to the wearing parts and delivers a product to uniform fineness.The pluverizer will reduce 1 pound sample of quratz type material 100 mesh in 1 minute.Maximum feed size is 1/4 inch.

The pulverrizer is supplied complete with a 3 H.P. motor, starting swith, V-belt pulley drive and mounting. Electrical requirement are:440 volts, 3 Phase AC.

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Laboratory Jaw Crusher

useful to crush chemical lumps,minerals, aggregate, rock etc. to fine powders.

A. The Crucher has manganese steel jaws. The opening of the jaws is adjustable from 1/4" to 3/4".The capacity is 200 kg per hour.The Crushing is made by steel jaws have forward and downward strokes with sufficient rocking action to throw the crusher material down the jaws.A hopper is provided at the top for pouring material. Output is volts, 3 phase A.C. supply, triple V-belt pulley drive.

B. Same as above but suitable for 400 kg per hour, fitted with 5 H.P. electric motor, suitable to operate on 440 volts A.C. Mains, 3 phase.

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Tensile Testing Machine

are used for wide variety of materials for their tensile strength and elongation.The Materials include wires, cable, plywood , conductors , ferrous and non ferrous material , cloth , fiber etc.

The machines are manufactured in various capacity and tests can be performed on these machine by simply incorporasting appropriate traverse speeds and using suitable grips in conformity with ASTM, DIN, ISO, BIS, BSS standards.

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Pendulum Impact Testing Machine

are used for determing the impact strength of notched and unnotched metal bars of different sections and different length according to the charpy (Beam) method. The machine is meant for making chrpy, Izod and tension Impact Tests.

(1) Specimen gauges. (2) Specimen for Tension Impact Test. (3) Gauge for Tension Impact Test Specimen. (4) Specimen for IZOD Impact. (5) Gauge for IZOD Impact Specimen. (6) Specimen for CHARPY Impact Test. (7) Gauge for CHARRY Imapct Test Specimen.

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Ring and Ball Apparatus

is used to determine softening point of bitumen. Ring and Ball apparatus is used to determine softening point.It is that temperature at which a sample of bitumenous material loaded by 9.5 mm dia steel ball, drop at a distance of 25 mm.

Same as above but supplied with a thermostaic hot plate. Suitable for operation on 230 V A.C.

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Standard Penetrometer

used to determine grade of bitumen. The penetration test determine consistencey of bitumen for the purpose of grading. Depth in units 1/10 of millimeter to which a standard needle having a standard weight will penetrate vertically in a duration of five seconds at a temprature of 25 degree C determines penetration for gradation.

Penetration cone for empiracal estimation of penetration of lubricating grease, petroleum jelly etc.

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Ductility Testing Apparatus

in flexible pavement construction, bitumen binders are used. It is important that bitumenous material forms ductile thin film around the aggregates, which serves as a binder. The binder material not of sufficient ductillity renders/ pervious pavement surface and leads to development of cracks. Therefore it is important to carry out the ductillity tests on bitumenous material.

Thermometer IP 38 C, range 23o c to 27 o C Ductillity mould with base plate.

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Stripping Value Apparatus

for determining Stripping Value of Bitumenous mixs having aggregate size 1.0 mm to 75 microns.

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Benkleman Beam

this device was developed by U.S. Bureau of Public Roads and is used tomeasure deflections of flexiable pavements. The light weight instrument is supplied in two parts for assembling on site easy hand tools. In use one end of the beam rest at a point under investigation while the beam is pivoted at the center. The free end carries a dial gauge to record the deflections. The other end is kept on a stuble platform. The Beam ratio is 2:1 which magnifies even small deflections. supplied with a dial gauge 0.01 X 25 mm. This is a light weight Dismantleable instrument and easy to carry.

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Centrifuge Extractor (HAND OPERATED/MOTORISED)

is used for determination and checking of bitumen percentage in bitumenous mix. the mix is added with a solvant and disolved bitumen is removed by centrifugal action.Consists of a removable aluminium rotor bowl, capacity 1500 gms. with a cap and tightening nut. The bowls assembley is mounted a avertical shaft which protrudes from a cast housing. This shaft and thus the bowls is rotated fast manually by enclosed gears in the cast body and handle.

Same as above but shaft is rotated by an electric motor and gear. Care is taken to prevent solvent entering into the rotor of electrical motor.Operates on 230 Volts A.C. single phse

(1).Filter paper disc. (2). Benzene.

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