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PENETRATION TEST ON BITUMEN

Technical Detail

Soften the bitumen above the softening point (between 75 and 100oC).Stir it thoroughly to remove air bubbles and water.

Pour it into a container to a depth of at least 15mm in excess of the expected penetration.

Cool it at an atmospheric temperature of 15 to 30oC for 90 minutes . Then place it in a transfer dish in the water bath at 25.0 + 0.1oC for 90 minutes

Keep the container on the stand of the penetration apparatus.

Adjust the needle to make contact with the surface of the sample.

Adjust the dial reading to zero.

With the help of the timer, release the needle for exactly 5 seconds.

Record the dial reading.

Repeat the above procedure thrice.

FLEXURE TESTING MACHINE 100KN DIGITAL

TECHNICAL DETAIL

The load is indicated on a calibrated bourdon tube type load gauge of range : 0 -100 kN x 0.5 kN.

The load gauge is calibrated against National Physical Laboratory / National Council for Cement and Building Materials certified proving ring.

Light weight, rugged high strength frame,

Double action hydraulic pump,

Self-aligning roller assembly,

Hydraulic jack provided with retraction spring,

For testing beams of 100X100X500mm

150X150X 700mmSuitable for operation on 220V, 50Hz, Single Phase, AC supply (For Electrically Operated Flexure Testing Machine).

Capacity: 100kN Type of pumping: Electrical Least count 0.01kN

Type of Loading: Third Point

Centre distance between supporting rollers: 600mm

Centre distance between loading rollers: 200mm

Apparatus with data logging facility

The setup studies behavior of single tank system. It consists of supply tank, pump for water circulation, Rota meter for flow measurement, one process tanks with scale. The components are assembled on frame to form tabletop models.