Calibration Certificate

Marshall Stability Test Apparatus-VSLIC4022

Brand: Vertex Brand

IS Standard : ASTM: D 1559 T- 62. BS 598-107

The test is applicable to hot mix designs using bitumen and aggregates up to a maximum size of 25mm. In this method, the resistance to plastic deformation of a cylindrical specimen of the bitumen mixture is measured when the same is loaded at the 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 programs for paving jobs. There are two major features of the marshall method of designing mixes namely, a) density – voids analysis b) Stability – flow tests. The marshall stability of mix is defined as a maximum load carried by a compacted specimen at a standard test temperature of 60ºC. The flow value is deformation the marshall test specimen undergoes during the loading up to the maximum load, 0.25 mm units. In this test and attempt is made to determine optimum binder content for the type of aggregate mix and traffic intensity.


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Salient Features

  • A loading unit motorized, capacity 5000kgf 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 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 flowmeter.
  • 3 Nos. Specimen mould 10.16cm I.D. x 7.6cm high with base plate and extension collar.
  • 1 No. A kit for specimen extraction consists of one each load transfer bar, steel ball, specimen extracting plate.


Accessories :

The following accessories and consumables are not part of the standard supply and are mandatory for the testing work

  • Proving Ring of 30 KN capacity with calibration certificate with traceability.
  • Flow meter Dial Gauge with 0.01mm graduation and 25mm travel.
  • Water bath with Thermostatic or Digital Control with stirrer
  • Electronic Balance of capacity 5 kg/1gm or 2 kg/0.1 gm or Two Pan Balance
  • with set of weights and analytical weight box.
  • Pair of Asbestos Gloves
  • Filter Paper ( Pack of 100 )
  • Misc. items: Spatula, Scoop, Mixing Tray, Trowel, light mineral oil and Benzene.


The following additional Instruments will speed up the testing process with ease and accuracy

Sample Extractor

allows the marshal sample to be easily removed from the mould. Can also be used for Proctor Moulds and Core cutters.

Optional Accessories

The following accessories and consumables are not part of the standard supply and are mandatory for the testing work

Automatic Compactor to simulate hand compaction

Motorised Planetary mixer

About Vertex Scientific & Lab Instruments Co. – Your Quality Partner of Material Testing Instruments!

Welcome to Vertex Scientific & Lab Instruments Co. are one of the reliable manufacturer & suppliers of a broad array of Material Testing Equipment. Under the offered array, known for premium products and innovative solution development such as Laboratory Testing Equipment, Cement Testing Equipment, Concrete Testing Equipment, Soil Testing Equipment, Bitumen/Asphalt Testing Equipment, Aggregate Testing Equipment, Oil & Paints, Tile Testing equipment, Bitumen Testing Equipment, Aggregate Testing Equipment and many more and we are also Providing Scientific & Laboratory Instruments Repair & Calibration Services. The demand of our offered Instruments is rising at a rapid a pace as these are in tandem with globally laid quality norms. We consistently follow a well-defined quality management system and have been awarded a well-deserved ISO 9001: 2015 certification. To ensure the same, high-quality Laboratory material and latest technology is used in the manufacturing process of these instruments. After the completion of the production process, these Instruments are checked on the parameters of their durability, design, easy usage, long trouble free operations and less maintenance to ensure their flawlessness. We also offer installation and maintenance services for these Instruments.

Welcome to Vertex Scientific & Lab Instruments Co.

Welcome to Vertex Scientific & Lab Instruments Co.