Ductility Testing Machine-Refrigerated
Ductility Testing Machine-Refrigerated Ductility Testing Machine-Refrigerated Introduction With refrigeration system and micro-processor based digital temperature controller Ductility is defined as distance in cms 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 …