Soil and aggregate base testing
Field and laboratory assessment of compaction, deformation response and bearing performance of prepared bases.
Request testing
- Compactionin-situ control of achieved density
- Ev1 / Ev2deformation moduli from static plate testing
- Evddynamic deformation modulus from LWD testing
Field and laboratory quality control of soil, crushed-aggregate and graded aggregate-sand bases to assess compaction, deformation response and bearing performance before road surfacing or foundation construction.
When testing is required
After placing or compacting a base in layers, before accepting a structural layer, installing road surfacing or foundations, and when verifying compliance with project requirements.
What the testing provides
Measured performance
Density, compaction and deformation-response measurements at agreed control locations.
Distinct methods
Ev1 and Ev2 are obtained by static plate testing, while Evd is obtained dynamically; the results are not interchangeable.
Evidence for the next stage
Technical data to assess base readiness or identify the need for corrective work.
How the work proceeds
- 01
Brief review
We confirm the base build-up, materials, project criteria, construction stage and purpose of testing.
- 02
Test programme
We define the methods, control locations, number of measurements and assessment criteria.
- 03
Location preparation
We check access, surface condition and level at each test location and record the test conditions.
- 04
Field testing
We carry out the agreed density measurements and separate static or dynamic plate load tests.
- 05
Laboratory assessment
Where required, we assess sampled mixtures and process the field results.
- 06
Record and findings
We compile the results, compare them with the specified criteria and issue the technical document.
Service scope
- Compaction coefficient determinationWe measure achieved soil density on site and compare the result with the agreed requirements.
- Static plate load testingWe determine deformation moduli Ev1 and Ev2 through successive static loading cycles using the applicable procedure.
- Dynamic plate load testingWe perform rapid dynamic-load control and determine the dynamic deformation modulus Evd.
- Graded aggregate mixture controlWe assess particle-size distribution, moisture content and other agreed material characteristics.
- Bearing-performance assessmentWe check prepared bases and pavement structural layers against project requirements within the scope of the selected methods.
- Test documentationWe prepare measurement records and technical findings in line with the applicable DBN and DSTU requirements and the agreed brief.
What the client receives
a plan or schedule of control locations and recorded test conditions · density and compaction coefficient results · separate Ev1 and Ev2 static-test results and Evd dynamic-test results · results of the agreed graded aggregate mixture assessment · a test record and technical findings against the specified requirements
What we need from you
- project criteria for the base and structural layers
- details of the material, construction method and compaction stage
- a site plan and access to the control locations
- a responsible site contact
What to consider
the method and number of control locations depend on the brief, material and base construction · Ev1 and Ev2 belong to the static method, while Evd belongs to the dynamic method; direct equivalence is inappropriate · results describe the base at the tested locations and at the time of testing · the findings do not replace design decisions and are not an absolute guarantee of future structural behaviour
Need to confirm that the base is ready?
Send the base build-up, project criteria and site address, and ABB will help define an appropriate control programme.