Ductility Refrigerated Ductility Testing Machine Comes with refrigeration system and micro-processor based digital temperature controller. Ductility is defined as distance in cm to which a standard briquette of bitumen can be stretched before the thread breaks.

The briquette is stretched at a rate of 50 mm/min.± 2.5mm per minute at a temperature of 27°c ± 0.5°C. The machine is having built in refrigeration system to work a below ambient temperature up to 8°C in tropical conditions. The machine will operate at 27°C with control accuracy of ± 0.5°C as per the requirement of IS.

The apparatus consists of water bath with a heater, and a circulating pump to maintain uniform water temperature.

BGI CBA-027