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HEAVY COMPACTION TEST AZA0865
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AUTOMATIC SOIL COMPACTOR AZA0867

HEAVY COMPACTION TEST AZA0866

The AZA0866 Heavy Compaction Test Set from Azalab is designed for determining the Maximum Dry Density (MDD) and Optimum Moisture Content (OMC) of soils using the Heavy Compaction (Modified Proctor) Method, in accordance with IS 2720 (Part VIII).

This test is fundamental in geotechnical engineering, road and highway construction, foundation design, embankment works, and earthworks where soils are subjected to high compactive effort. The heavy compaction test realistically simulates field compaction achieved by modern construction equipment, enabling reliable prediction of soil behavior under service loads.

This configuration is supplied with a 150 mm diameter mould (2250 cc volume), making it particularly suitable for coarse-grained and granular soils.

Scope of Use

The AZA0866 Heavy Compaction Test Set is used to establish the relationship between moisture content and dry density of soil under heavy compaction energy. The resulting compaction curve is used to determine MDD and OMC, which are essential parameters for compaction control and quality assurance in field construction.

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Description

Description

Applications

  • Heavy Proctor (Modified Proctor) compaction testing
  • Construction compaction quality control
  • Subgrade and embankment evaluation
  • Foundation soil preparation
  • Soil stabilization and research studies

Technical Specifications

Component Specification
Standard IS 2720 (Part VIII)
Mould Internal Diameter 150 mm
Mould Height 127.3 mm
Mould Volume 2250 cc
Rammer Weight 4.89 kg
Drop Height 450 mm
Blows per Layer 56 blows in 5 layers (as per IS 2720 Part VIII)
Material Options Steel (standard), Gunmetal (optional)
Operation Manual
Usage Laboratory and field testing

Key Features

  • Conforms fully to IS 2720 (Part VIII) – Heavy Compaction Test
  • 150 mm diameter mould suitable for coarse and granular soils
  • High compaction energy to simulate field conditions
  • Rugged construction for repetitive laboratory and site use
  • Accurate determination of Maximum Dry Density (MDD) and Optimum Moisture Content (OMC)

What’s Included

  • Steel Compaction Mould – 150 mm internal diameter × 127.3 mm height (2250 cc volume)
  • Detachable Collar – Precisely machined for accurate mould volume
  • Base Plate – Threaded or clamp-lock type
  • Heavy Compaction Rammer – 4.89 kg, manually operated, with 450 mm controlled drop

Note: Moulds can be supplied in steel (standard) or gunmetal (optional) on request.

Frequently Asked Questions (FAQ)

Q1: Why is a 150 mm mould used instead of a 100 mm mould?
Larger moulds are recommended for coarse-grained soils containing bigger particles to ensure representative sampling and accurate compaction results.

Q2: What is the difference between steel and gunmetal moulds?
Gunmetal moulds provide superior corrosion resistance and longer service life but are heavier and more expensive compared to steel moulds.

Q3: Is the AZA0866 suitable for field use?
Yes. The set is suitable for laboratory and field applications, commonly used in mobile or site testing laboratories.

Q4: Can this rammer be used with other mould sizes?
The 4.89 kg rammer supplied with AZA0866 is calibrated specifically for the 150 mm mould. Different mould sizes require different compaction energy arrangements.

Q5: Is the Heavy Compaction Test the same as the Modified Proctor Test?
Yes. Under IS standards it is referred to as the Heavy Compaction Test, and it is equivalent to the Modified Proctor Test defined in ASTM D1557.

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