Marshall Stability Test Apparatus

Marshal test is extensively used in routine test programs for the paving jobs. The stability of the mix is defined as a maximum load carried by a compacted specimen at a standard test temperature of 600 °C. The flow is measured as the deformation in units of 0.25 mm between no load and maximum load carried by the specimen during stability test (flow value may also be measured by deformation units of 0.1 mm). This test attempts to get the optimum binder content for the aggregate mix type and traffic intensity. This is the test which helps us to draw Marshall Stability vs. % bitumen.

Features:-

• A loading unit motorized capacity 5000kgf with two telescopic pillars and an adjustable cross 
       head. Limit switches are  fitted inside  to  control  upward  or  downward movement  of  the 
       pillars. On-off reversing switch and indicator lamps are on the front side while a hand wheel 
       to manually move the pillars is on the right. The load frame has  fixed  speed  of 5.08cm  per 
       minute. Operated on 230 Volts A.C
• 1 No. Compaction pedal with specimen mould holder.
• 2 Nos. Compaction Rammers, 4.5kg weight and free fall 45.7cm
• 1 No. Breaking head assembly with provision to fix flow meter.
• 3 Nos. Specimen mould 10.16cm I.D. x 7.6cm high with base plate and extension collar.
• 1 No. Kit for specimen extraction consists of  one  each load  transfer  bar, steel  ball, specimen 
       extracting plate.