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Marshal Stability Apparatus

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MOQ : 1 Piece

Marshal Stability Apparatus Specification

Max Height
Approx. 80 cm (machine height including dial and assembly)

Interface Type
Manual and Digital Interface

Features
Rigid construction, automatic cut-off, peak value hold, cross-head movement, portable specimen extraction accessories

Hardness
Standard for Mechanical Components

Test Range
Up to 50 kN (5000 kg)

Automation Grade
Semi-Automatic

Accuracy
0.1% of indicated value

Equipment Type
Bituminous Testing Machine

Temperature
Ambient/Room Temperature-up to 60C (with optional chamber)

Resolution
0.01 kN

Display Type
Digital Panel / Analog Dial (varies by model)

Humidity
Up to 90% RH (non-condensing)

Usage
Industrial

Number of Specimens
One at a time

Mounting Type
Bench Top

Application
Measurement of resistance to plastic flow of bituminous mixtures

Response Time
Instantaneous (Digital Display)

Port Size
Standard

Frequency
50 Hz

Operating Voltage
230 V AC, 50 Hz

Measuring Range
0-50 kN

Specimen Size
Diameter 101.6 mm, Height 63.5 mm (4 x 2.5) as per ASTM D6927

Power Supply
230 V AC, 50 Hz

Capacity
50 kN (5000 kg)

Machine Weight
Approx. 70-85 kg (varies by model)

Test Speed
50 mm/min (1.25 mm/s)

Test Width
Applicable to specimens up to 101.6 mm diameter

Test Stroke
50 mm max

Control Mode
Manual and Digital Control

Plunger Travel
Up to 65 mm

Proving Ring Capacity
Up to 50 kN (with calibration certificate)

Specimen Extraction Tool
Supplied with apparatus for easy removal

After-Sales Support
Available from supplier

Bracket Material
Mild Steel/Corrosion-resistant steel

Loading Frame Type
Electro-mechanical with gear arrangement

Included Accessories
Stability mold, breaking head, cylindrical specimen molds, dial gauge, proving ring, heating bath (if applicable)

Attached Water Bath
Optionally available for heating specimens

Deformation Measurement
0-25 mm (with 0.01 mm least count dial gauge)

Marshal Stability Apparatus Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
50 Pieces Per Month

Delivery Time
1 Week

Main Domestic Market
All India

Marshal Stability Apparatus About

Marshall Stability Test Apparatus is applicable to hot mix designs using bitumen and aggregates upto a maximum size of 25mm. In this method, the resistance to plastic deformation of cylindrical specimen of bitumenous mixture is measured when the same is loaded at periphery at 5 cm per min. This test procedure is used in designing and evaluating bitumenous 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, 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 60C. The flow value is deformation the marshall test specimen under goes during the loading upto 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.

Accurate and Reliable Bitumen Testing

Marshal Stability Apparatus delivers high-precision results for measuring the resistance to plastic flow in bituminous mixtures. It is engineered with a durable steel frame, advanced digital/analog display, and controlled test speed, ensuring repeatable data for quality engineering, research, or industrial applications.

Comprehensive Features and Accessories

This equipment is supplied complete with a stability mold, breaking head, cylindrical specimen molds, dial gauge, calibrated proving ring, and portable extraction tool. The optional water bath allows for temperature-controlled specimen heating, making the unit versatile for varied testing requirements.

User-Friendly and Durable Design

The apparatus features a semi-automatic, electro-mechanical loading frame, ergonomic specimen extraction, and a compact bench-top structure. Its robust build, corrosion-resistant options, and digital/manual control interface provide seamless operation and reliability even under demanding laboratory conditions.

FAQ's of Marshal Stability Apparatus:

Q: How does the Marshal Stability Apparatus measure the resistance to plastic flow in bituminous mixtures?

A: The apparatus applies a controlled load to a bituminous specimen using an electro-mechanical loading frame and measures deformation with a sensitive dial gauge (0.01 mm least count) and a proving ring (up to 50 kN). The peak load and deformation at failure provide the Marshal stability and flow values, respectively.

Q: What types of bitumen specimens can be tested with this machine, and what are the size requirements?

A: The apparatus tests cylindrical specimens with a diameter of 101.6 mm and height of 63.5 mm (as per ASTM D6927). Each test is performed on one specimen at a time, ensuring precise and focused results.

Q: When should the optional water bath be used, and what is its benefit?

A: The optional water bath is recommended when testing needs to be conducted at elevated or controlled temperatures, typically up to 60C. This helps simulate real road conditions, ensuring accurate assessment of bituminous mix performance in various climates.

Q: Where is the Marshal Stability Apparatus typically installed, and how is it powered?

A: This bench-top machine is commonly installed in materials testing laboratories, asphalt plants, or engineering facilities. It operates on a standard 230 V AC, 50 Hz power supply suitable for Indian and most international lab environments.

Q: What process should be followed for conducting a test using this apparatus?

A: To conduct a test, prepare and mold the bituminous specimen. Place it between the breaking heads, apply load via the loading frame at 50 mm/min, and measure the deformation and load using the apparatus' digital/analog display and dial gauge. Extract the specimen using the included tool after the test concludes.

Q: How does this apparatus benefit industrial and engineering applications?

A: With high accuracy (0.1%), robust construction, and rapid response time, the apparatus ensures reliable and repeatable results. Its standardized operation supports quality control, research, and product development for road construction and maintenance applications in industrial and engineering sectors.

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