The apparatus is suitable for conducting Marshall stability test of bituminous mixture. The apparatus can truly judge the fail point of bituminous mixtures to design the match ratio or check the construction quality of bitumen road surface.

The Marshall stability of a mix is defined as a maximum load carried by a compacted specimen at a standard test temperature of 60º C. The test is applicable to hot mix designs using bitumen and aggregates upto a maximum size of 25 mm.

Salient Features

• The apparatus features easy operation, low noise, high degree automation, quick determination, available solution, and high efficiency.
• The apparatus consists of a motorized loading unit of capacity 5000 kgf with two telescopic pillars and an adjustable cross head.
• There are limit switches fitted inside to control upward or downward movement of the pillars.
• On-off reversing switch and indicator lamps are mounted on the front side of the apparatus.
• The loading unit has fixed speed of 5.08 cm per minute. It operates on 230 Volts A.C. supply.
• Provided with one Compaction Pedal with specimen mould holder.
• Consists of two Compaction Rammers of 4.5kg weight and a free fall of 45.7cm.
• There is one breaking head assembly with provision to fix flowmeter.
• There are three Specimen moulds with base plate and extension collar.
• Includes one kit for specimen extraction, one load transfer bar, steel ball and specimen extracting plate.

Accessories
The accessories of Marshall Stability test apparatus are :

• Integral type Proving Ring of capacity 3000 kgs
• One dial gauge 0.01 x 25mm
• Universal Water Bath with false bottom and pyramid shaped lid to accommodate three Marshall specimen
• One Thermometer

Applications

• Highway construction
• Bridge construction
• Universities
• Research & development
• Bituminous paving jobs
• Enterprises