THE PROBLEM - structural
- Cracking in the wearing/surface course
- usually restricted to the surface
- timely treatment can arrest deterioration
- avoids need for extensive refurbishment.
- Weathering accelerates failure
- repeated freeze/thaw cycles cause cracking
- rapid break up of the road surface
- undermines structure and stability of the sub-base.
- Untreated damage
- affects the structural layers beneath
- may lead to full reconstruction.
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THE PROBLEM - Legal
- Ever increasing claims culture
- Pay outs drawn from highways maintenance budget
THE PROBLEM - Financial
- Replacement of a wearing course
- Hidden costs of disruption
- Traffic management
- Environmental costs
- excavating new aggregates
- disposing of the old
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