In the maintenance programme carried out each year on our roads, one of the most difficult problems facing the maintenance engineer is fatting up / excess bitumen caused by many factors and on all classes of road. The fatty problem can be seen by the black shiny areas, which develop on the surface of roads where the stone surface has been pushed into the underlying surface by the ever increasing weight and volume of heavy vehicles assisted by warm weather heating the road surface and rendering it more soft and supple. The problem is further distressed when the fatty surface is lifted on wheels / pulled and deposited further along the surface leaving small potholes and lumps or bitumen for further movement and greater distress.

Ralumac Fatty Surface Inhibitor has by its special design the ability to absorb excess bitumen into the base regulating course whilst similarly filling ruts, depressions and plucks before receiving the top / wearing coat giving an excellent riding surface with good texture.

The repaired surface can be surface dressed in four weeks or left to a date in the future.

Typical details:

(0mm/8mm aggregate grading
– alternative aggregate gradings are available)

Aggregate:Selected Coarse aggregates
Fine aggregate:High quality crushed aggregate
Filler:Ordinary Portland Cement
Skid resistance: Typically 65
Texture depth:Typically 1.3mm+
Marshall stability (KN):10+
Flow value: (mm)4
Binder content:5% - 8% by weight
Void content: 2% - 6% by volume
Coverage rate: Will very depending on the shape of the carriageway.

Application process: Ralumac is cold-applied through a specially designed continuous flow machine. Daily outputs in excess of 5,000m² can be achieved with minimal disruption to traffic. Application is normally undertaken is layers with the initial regulating layer up to 60mm, followed by a uniform wearing course carpet of 8mm in thickness. The new Ralumac surface can be trafficked in 15 to 20 minutes. No rolling is required as the traffic action kneads the material, closing up the surface rendering it virtually impervious.

For more information on this product contact RMS here