Preventative road maintenance treatments
Micro Asphalt
A cold-applied thin bituminous surface course incorporating bitumen emulsion and fine graded aggregate with fillers, Micro-surfacing incorporates a polymer modified bitumen emulsion and is often a two-coat application and can be laid mechanically or manually to a maximum dried film thickness of 15mm. A Micro Surface restores surface texture and improves skid resistance, prevents ingress of water into the road structure, seals and preserves existing surfaces and can reshape and re-profile existing surfaces.
Crack sealing and joint repair
Crack sealing and joint repair help to maintain a road surface in a safe and serviceable condition and extend life. Left untreated, cracks and open joints in the road allow water ingress which will create further damage and ultimately shorten the life of the road. Timely intervention using crack sealing and joint repair systems can both seal the surface against the ingress of water and reinstate the surface profile.
Surface Dressing
A layer of liquid bitumen is sprayed onto the road surface to seal it and provide a binder for stone chippings which are then spread on top. The road surface is then rolled to embed the chippings. This provides enhanced skid resistance and prolongs the life of the road by up to 10 years by preventing water damage to the underlying structure.
Excess chippings are then swept approx. 24 hours, 3 days and 7 days after the works are carried out.
Preservative
A cold spray-applied surface penetrative preservation sealer, preservative penetrates the asphalt mortar at the surface. This provides a durable seal to prevent water ingress and retards further oxidization of the road from water and UV light.
It preserves the condition of the surface at the point of treatment and provides improved cohesion and binding properties with the aggregate matrix.
Preservative is best utilised as a preventative maintenance measure as part of a long-term asset management strategy, extending the operational life of the road and delaying the large costs of resurfacing and repair works. Preservative is a cost-effective treatment to keep good roads in good condition for longer.