Multitech Scientific Instruments

Anand Parbat, Delhi

For determining stripping value of bituminous mixes having aggregate size: 1.0mm to 75 micron.

Specification: A circular tray rotates in a vertical plane at a rate of approximately 100 R.P.M. by an electrical geared motor. 4 bottles of approximately 400 cc are mounted on this circular tray at an angle of 900. To each other with their mouth towards center of the tray. A time switch is provided. Suitable for operation on 230 V A.C. Single Phase

Standard Used : IS 2376 (PART-IV) & BS 812:111

For Measuring of Resistance of Aggregate to Crushing.

Specification: The Aggregate Crushing Value (ACV) test set provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Each set consists of steel cylinder, plunger, base plate, cylindrical measure and tamping rod. All parts of the apparatus are powder coated or galvanized steel, heat treated and ground before manufacturing to make it durable and reliable. Specification: Consists of M.S. Cylindrical Container 150mm +/-0.5mm dia x 130mm to 140mm high with base plate 200 to 230mm/sqr x 6mm thick. A Plunger of 148mm +/-0.5mm dia x 100 to 115mm high. Supplied complete with Tamping Rod, 16mm dia x 600mm long, both ends rounded. Metal Measure 115+/- 0.5mm dia x 180 +/- 0.5mm high.

Note: On Special Request Aggregate Crushing Value Apparatus having 75mm dia or 300mm dia cylinder size can be supplied.

Standard Used : IS 2386 (PART IV) 9377 & BS 812:112

It is robustly designed to determine the aggregate impact value (AIV) of aggregates which provides a relative measure of the resistance of an aggregate to sudden shock or impact. The counter fitted to the machine automatically records the number of blows delivered to the sample, manufactured from heavy duty plated steel to resist corrosion. Specification: The instrument consists of a circular base with Two vertical guides. The Hammer of weight 13.75 +/-0.25kg can be raised to fall freely down the vertical guides. The Height of fall can be adjusted through 380 +/- 5mm. The Hammer is provided with a locking arrangement. The hammer falls freely to the base and is removable for employing. Supplied complete with metal measure 75mm dia x 50mm high (For specimen preparation) and Tamping Rod 230mm long x 10mm diameter. A Blow Counter to count the number of strokes is fitted on top of the equipment.