When it is needed
For incomplete works, premature pavement deterioration or disagreements with a contractor.
What we examine
- Pavement structure
- Junctions and kerbs
- Completed-work documents
Materials to prepare
- Contract and technical brief
- Design and schedules
- As-built records
- Test reports
Sample questions
- Does the accessible result comply with the agreed design solutions?
- Which work defects are supported by the examination?
- Are there discrepancies between work records and the actual result?
- Which causes of the identified defects are technically supported?
- What remedial works are necessary?
Build a set of questions →
How the work is carried out
- Checking the contractual basis
- Inspection of disputed areas
- Comparing work and results
Result
A report on the work checked, established deficiencies and technically necessary remedies.
What affects the conclusions
Concealed layers and material properties are assessed using verifiable documents and agreed tests.
Frequently asked questions
Can work be checked before acceptance?
Yes. Identify the disputed items in advance and provide access to the areas.
Must the entire pavement be opened up?
The task determines the sampling and measurement programme; findings are limited by data representativeness.
Relating completed work, samples and test reports
Checking repair quality requires connecting three data levels: what documents specified, what was actually completed on site and which properties measurements or tests support. A material list on a delivery note does not describe the construction of every concealed layer across the whole area.
Test results need information about the asset and sampling location. A sample must have a verifiable designation, provenance, date and connection to the sampling record. Without this chain, a technically sound test report may be insufficient for a finding about the particular disputed section.
Comparison elements for a work item
- The section and agreed pavement construction.
- The contractual operation and stated quantity.
- As-built records and acceptance documents.
- Inspection and measurement results and tests relevant to the section.
- The discrepancy identified and its technical significance.
A finding about the entire road needs justification of which part the data represent. A single sample result cannot be extended without explanation to areas laid at another time, using different material or under different operating conditions. Equally, a defect does not automatically establish which work stage caused it.
Questions can usefully be separated: which deviations from the design are supported; which quantities can be checked; which damage causes are justified; which remedial operations are necessary? This avoids mixing technical quality, work quantity and a contractor's legal liability.
When comparing section condition before and after repairs, retain information about the operating period between records: known works, drainage changes and traffic restrictions. This helps identify conditions that may have changed. Images of different lanes or adjacent areas are not grouped under one defect label merely because they look similar; every document must retain a verifiable location reference.
