Soil treatment and stabilisation works

Our Proven Approach

Soil Treatment &
Stabilisation Process

A structured delivery process covering investigation, testing, design, treatment, compaction and field validation to meet specification.

01

Site Investigation

Ground review, sulphates, CBR and bearing capacity inputs.

02

Laboratory Testing

Binder mix trials, soaked CBR testing and validation analysis.

03

Design & Planning

Treatment strategy aligned with MCHW and DMRB requirements.

04

Execution & Validation

Mixing, compaction and continuous geotechnical verification.

Method

Designed Like an Engineering Process, Not a Brochure

Every stage feeds the next: investigation informs testing, testing informs the binder design, the design informs the treatment plan, and the works are validated throughout delivery.

What this page shows

  • Desktop review of site investigation data
  • Laboratory validation of treatment approach
  • Design criteria and treatment planning
  • On-site mixing, compaction and compliance testing

01 / Investigation

Site Investigation

Initial desktop study of the site investigation information is used to identify soil types, sulphates, and any available information relating to existing CBRs and bearing capacity of the soils.

  • Soil type identification
  • Sulphate assessment
  • Existing CBR review
  • Bearing capacity review

02 / Testing

Laboratory Testing & Mix Validation

Where necessary, and especially for permanent works, subgrade samples are collected from site and sent for geotechnical laboratory testing.

The soil is mixed with the proposed binder at incremental doses to determine the optimum percentage addition required to achieve the target bearing and stiffness.

Each sample undergoes remoulded soaked CBR testing to validate the proposed design binder mix.

Remoulded CBR Results
Design Targets

03 / Planning

Design & Treatment Plan

Soil treatment and stabilisation works are designed using site investigation analysis and laboratory data, in accordance with MCHW and DMRB guidance.

04 / Execution

Soil Treatment & Stabilisation

The binder is applied in accordance with the design addition percentage, followed by pulverisation and mixing using specialist stabilisation equipment.

Binder Application

Controlled delivery to design rate

Pulverisation

Mechanical blending of soil and binder

Formation

Uniform treated platform across the work area

Compaction Ready

Prepared for density and stiffness validation

05 / Performance

Compaction Is Key

Achieving the required density and consistency at every stage is critical to long-term performance and compliance.

Maximum Density Correct roller selection and pass count
Uniform Results Consistent compaction across the treated area
Performance Strength, stiffness and durability validation

06 / Verification

Validation Geotechnical Testing

Validation testing is vital throughout the mixing and compaction process to ensure the required specification is achieved at every stage.

The ITP is developed at design stage in accordance with MCHW and DMRB requirements.

  • Plate bearing / stiffness checks
  • Field geotechnical validation
  • ITP controls and compliance checks
  • Continuous verification during works
Laboratory Validation Curves

Get in Touch

Need a Ground Treatment Strategy?

Talk to Furlong Ground Stabilisation about an investigation-led, compliant treatment solution for your project.

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