Description

Originally developed by Marshall Stability and Compaction Apparatus, a highway engineer in U.S.A later on standardized by ASTM. Generally, the test is applicable to hot mix designs using bitumen and aggregates upto a maximum size of 25 mm. In this method, the resistance to plastic deformation of a cylindrical specimen of a bituminous mixture is measured when the same is loaded periphery at 5 cm per min. This test procedure is used in designing and evaluating bituminous paving mixes. The test procedure is extensively used in routine test programmes for paving jobs There are two major features of the Marshall method of designing mixes namely. The Marshall stability of mix is defined as a maximum load carried by a compacted specimen at a standard test temperature of 60 deg.C. The flow value is deformation the Marshall test specimen undergoes during the loading upto the maximum load, in 0.25 mm units. In this test, an attempt is made to determine optimum binder content for the type of aggregate mix and traffic intensity. The apparatus consists of 1. A loading unit motorized, capacity 5000 kgf with two telescopic pillars and an adjustable crosshead 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 minute operated on 230 Volts A.C.

Marshal Stability Consist Of :

• • • 01 No. – Marshal Load Frame.
    • 01 No. – Breaking Head Stability Mould, with a Dial Gauge ( Having 25mm travel and 0.01mm least count), for Flow Measurement.
    • 03 No. – Compaction Mould, Steel Cylindrical.
    • 03 No. – Base Plate.
    • 03 No. – Extension Collar.
    • 01 No. – Compaction Pedestal , Manual Operation, Comprising a steel Plate Capped on a Wooden Post. A Mould Clamp is fitted to the top of the Plate.
    • 02 No. – Compaction Hammer, satisfies BS 598. The Hammer has a 4535g sliding weight with a free fall of 457mm.
    • 01 No. – Load Transfer Bar.
    • 01 Pkt. – Paper Discs, Non Absorbent, 11cm diameter pack of 100 No.

Specification :

• • • Material : Mild Steel (Body)
    • Automation Grade : Automatic
    • Voltage : 230V
    • Phase : Single Phase
    • Frequency : 50Hz
    • Surface Treatment : Paint Coated
    • Power Source : Electric
    • Compaction Hammer : 5.43 kg
    • Drop Height : 457mm
    • Size : Upto 25mm
    • Flow Meter : 0.01mm x 25mm
    • Rate Of Travel : 50.8mm/min
    • Temperature : 60 deg. C
    • Capacity : 2500kg

Other Details :

• • • Model Number : VSLIC-B122
    • Delivery time : 1 Week or Depends on the Distance.