Soil Stabiliser — Hard Clay

Machine Before - Dugong - Machine After

The machine before Dugong determines what material arrives; the machine after Dugong determines what surface must leave. An excavator can expose formation, a loader can deliver a stockpile, and a roller can compact the placed layer. The scraper's role is bounded by those interfaces.

Before moving material

Identify the upstream operation and its remaining defects.

Receiving operation and checks

Hand over the measured surface to compaction, cultivation, paving or turf preparation. Record which operation owns levels, materials and final acceptance.

The workflow can include Dugong where suitable; it does not assume Dugong replaces adjacent equipment.

Clay Soil Grading

Clay grading depends strongly on working condition. Material that is too dry can resist cutting and form clods; material that is too wet can smear, rut and lose its intended shape.

Before moving material

Assess the clay and the required layer before choosing the working window.

Receiving operation and checks

Prepare for the specified cultivation or compaction operation. Watch for rutting, smearing and large buried clods.

The useful moisture condition depends on the soil and task; no universal percentage is specified.

Hard Clay Grading

Hard clay can demand a preparation step before controlled redistribution. Forcing a deep cut may increase traction demands without producing material suitable for the receiving layer.

Before moving material

Assess dryness, clod formation and service locations.

Receiving operation and checks

Finish the intended layer when material condition permits. Inspect both the cut material and the receiving surface for large void-forming clods.

Rock-like or cemented material may require different equipment.

Record the job inputs

Use this checklist to turn the scenario into a specific brief. Retain the design revision and agree who accepts each completed layer.

• Existing condition, extent and the reason for intervention
• Required finished purpose, receiving operation and acceptance criteria
• Material type, layer role, source, receiving area and volume state
• Reference levels, datum, survey method and issued design revision
• Available tractor, implement configuration, travel route and turning space
• Checks before work, stopping points and evidence retained at handover

Checklist ticks apply only while this page is open. Include the completed brief in your project records.

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