DETERMINATION OF RESISTANCE TO ABRASION AS PER IS 17190-2020

Double head Abrader as shown in Fig. 4 and Fig. 5 of IS 17190 or equivalent model with roller wheels, supplementary weights, vacuum suction portion, cleaner brush, screw driver for specimen platform. precision balance available at extra cost.

• Two modes : Refacing mode and testing mode
• Testing speed : 60 RPM
• No. of abrasion cycles : 300

This tester is applied to do the test of abrasion resistance of cementitious Grout. The specimen is prepared as per the guidelines of ANNEX E of IS 17190 and then using the regulated models of grinding wheel with loading weight has to be abraded, Specimen to be removed after rotation to reach a certain number, compare the weight of the abraded material before and after abrasion. The loss in weight should be within the limits as specified. Grinding wheel models: H18 or equivalent, Refacing sheer S-11 or equivalent are supplied as the standard accessories.

The Abrasion Resistance Tester made on a rigid metallic base plate there is a test specimen support disc which is flat and fixed to its driving shaft supported by two ball bearings. This disc is rotates with the help of a gearbox and a motor. The number of rotation is controlled by a four digit pre-set digital counter. There are two abrasive wheels supported by two symmetrical arms that is oscillated freely about a horizontal axis. The wheels are rotates freely by means of two ball bearings on each wheel. There are the number of counter weights for apply the force on the test specimen at the time of the testing. The mounting wheel has cylindrical shape and specified dimensions. There is a vacuum arrangement for removal of the wear debris is including two exhaust nozzles above test specimen wear zone. All the parts of the instruments are painted, powder coated or chrome platted to give the instrument corrosion resistance long life.