Pavement Treatment
A pavement treatment is a treatment applied to the pavement of a road (or any similar pavement) to protect the road pavement and extend or maintain its useful life.
Typical pavement treatments for Urban sealed network (local roads):
Criteria | Treatment | Type | Remarks |
---|---|---|---|
Roughness >= 6 Cracking* >= 7 % | Reconstruction : New pavement design; removal of existing base layer, and construction of new base & surface layer (e.g. DG10 at 50mm thickness) | Rehabilitation Work | For top hierarchy roads |
Roughness >= 6 Cracking* >= 7 % | Insitu stabilisation with 50 mm AC : When granular base exists, stabilisation of base with cement and surface treatment with 50 mm asphalt overlay | Rehabilitation Work | For top hierarchy roads |
Roughness >= 6 Cracking* >= 7 % | Insitu stabilisation with 30mm AC : When granular base exists, stabilisation of base with cement and surface treatment with 30 mm asphalt overlay | Rehabilitation Work | For low hierarchy roads |
Cracking* >= 4 & <7 % | Reinforcement Seal with 50mm AC: Single coat seal with 10mm stone with two application of polymer modified binder with chopped fibre interlayer and 50 mm asphalt overlay. | Rehabilitation Work | For top hierarchy roads |
Cracking* >= 4 & <7 % | Reinforcement Seal with 30mm AC: Single coat seal with 10mm stone with two application of polymer modified binder with chopped fibre interlayer and 30 mm asphalt overlay. | Routine/Preventive Maintenance | For low hierarchy roads |
Roughness <4 Cracking* >= 2 & <4 % | AC 50mm overlay : Asphalt concrete overlay of 50mm with Dense Graded 10mm stone (DG10) | Routine/Preventive Maintenance | For top hierarchy roads |
Roughness <4 Cracking* >= 2 & <4 % | AC 30mm overlay : Asphalt concrete overlay of 30mm with Dense Graded 10mm stone (DG10) | Routine/Preventive Maintenance | For low hierarchy roads |
Ravelling >= 10 | AC overlay 10% ravelling : Asphalt concrete overlay of 30mm with Dense Graded 10mm stone (DG10) | Routine/Preventive Maintenance | All road types |
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