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STANDARD COMPACTION TEST AZA0864
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HEAVY COMPACTION TEST AZA0866

HEAVY COMPACTION TEST AZA0865

The AZA0865 Heavy Compaction Test Apparatus from Azalab is designed for performing the Heavy Compaction Test, commonly known as the Modified Proctor Compaction Test. This test establishes the relationship between moisture content and dry density of soils under high compaction energy, simulating field conditions achieved by modern heavy compaction equipment.

The apparatus is essential for determining Maximum Dry Density (MDD) and Optimum Moisture Content (OMC) for soils used in heavy-duty pavements, airfield runways, embankments, dams, and foundations, where higher strength and durability are required.

Purpose of Test

The Modified Proctor Test applies significantly greater compactive effort compared to the Standard Proctor test. The results are used by engineers to:

    • Specify target field compaction densities
    • Control moisture during earthwork
    • Ensure long-term stability and load-bearing performance
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Description

Description

Main Components

1. Heavy Compaction Mould

  • Cylindrical steel mould with detachable collar and base plate
  • Designed to hold a larger soil volume for heavy compaction

2. Heavy Compaction Rammer (Hammer)

  • Precisely machined hammer with specified weight and drop height
  • Delivers standardized high compaction energy

3. Accessories (Optional)

  • Sample extruder
  • Mixing pan and preparation tools

Test Procedure Summary

  • Soil is compacted at different moisture contents
  • Compaction is carried out in five layers, each receiving a fixed number of blows
  • Wet density is determined after compaction
  • Moisture content is measured
  • A compaction curve is plotted to determine MDD and OMC

Standards Compliance

  • ASTM D1557 – Modified Effort Compaction Test
  • IS 2720 (Part VIII) – Heavy Compaction Method
  • BS 1377‑4 – Compaction-related Tests

Specifications

Parameter Specification
Model Number AZA0865
Test Method Heavy / Modified Proctor Compaction
Compaction Effort Modified / Heavy
Application Roads, airfields, embankments, dams

Compaction Mould – ASTM Type

  • Internal Diameter: 152.4 mm (6 in)
  • Effective Height: 116.4 mm
  • Volume: ~2124 cm³

Compaction Mould – IS Type (Optional)

  • Internal Diameter: 150 mm
  • Height: 127.3 mm
  • Volume: 2250 cm³

Heavy Compaction Rammer

  • ASTM D1557: 4.54 kg, 457.2 mm drop, 50.8 mm face
  • IS 2720 Part VIII: 4.9 kg, 450 mm drop, 50 mm face

Construction

  • Heavy-duty steel, corrosion-resistant finish

Applications

  • Highway and pavement construction
  • Airfield runway design
  • Earth dams and embankments
  • Foundation and subgrade evaluation
  • Geotechnical and civil engineering laboratories

What’s Included

  • Heavy compaction mould with collar and base plate
  • Heavy compaction rammer
  • User manual

Frequently Asked Questions (FAQ)

Q1: What does the AZA0865 test determine?
It determines the maximum dry density and optimum moisture content under heavy compaction effort.

Q2: How is it different from the Standard Compaction Test?
It uses a heavier hammer, higher drop height, and more layers, resulting in higher compaction energy.

Q3: Which projects require Modified Proctor testing?
Airfields, heavy-duty pavements, dams, and high-load foundations.

Q4: Does it comply with international standards?
Yes. ASTM D1557, IS 2720 (Part VIII), and BS 1377‑4.

Q5: Is automation available?
This is a manual system. Automatic compactors are available separately.

Key Benefits

  • Accurate determination of MDD and OMC under heavy compaction
  • Essential for high-performance earthworks
  • Robust construction for long-term lab use
  • Fully standards compliant
  • Trusted Azalab quality
Additional information

Additional information

Model Number

AZA 0865
Test Method

Heavy Compaction Test (Modified Proctor Compaction Test)
Purpose

To determine the Maximum Dry Density (MDD) and Optimum Moisture Content (OMC) of soils under heavy compaction effort.
Material

Heavy-duty steel

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