KLARUWTEX
190: ANTI-SKID RETEXTURING
High braking, cornering and turning forces create wide
variations in both the levels and rates of aggregate
polishing. At highly stressed sites substantially reduced
skid resistance may occur as early as one year into
the life of a wearing course, indeed, considerable proportions
of a route will probably exhibit sub-standard skid resistance
well before expiry of its design life. However, aggregate
polishing alone should not justify replacement when
proven alternatives exist.
• REDUCES WET-SKID ACCIDENTS
KLARUWTEX 190 controlled retexturing will substantially
reduce the risk of wet-skid accidents at bends and in
braking zones; at junctions, roundabouts, slip roads,
traffic lights, pedestrian crossings, road tunnels and
at the lead-in to contra-flow traffic management systems,
along with airport runways. This proven treatment restores
and/or maintains skid resistance to Highways Agency
standards on roads and ICAO standards on airport runways.
The KLARUWTEX 190 retexturing process restores
both the micro-texture and macro-texture (TRL Report
296 refers) and the skid resistance of a carriageway
surface is improved to the best value obtainable form
the road stone being treated. Studies by TRL, on behalf
of the Pavement Engineering group of the Highways Agency
have shown useful and durable benefits for three summers
after treatment. "Mechanical retexturing of roads" TRL
Reports 298 and 299 refer: "a study of processes and
early performance life" (298) and "an experiment to
assess durability" (299).
• PAVEMENT MANAGEMENT
The KLARUWTEX 190
(K190) System is ideal for maintaining the necessary
levels of skid resistance and for improving texture
depth by repeatable (cyclical) re-treatment at high
stress and problem areas. Significant extension of surface
life provides real savings on a whole life cost basis
when compared with other options, particularly in the
Route Strategy/Route Action Plan scenario.
• ECONOMIC AND COST-EFFECTIVE
Evaluation of the maintenance options available for
improving skid resistance, on a life cycle cost basis,
show that KLARUWTEX 190 retexturing is economic,
cost-effective and competitive. Only the mechanical
KLARUWTEX 190 system offers the benefits of re-treatment.
Rehabilitation, rather than replacement, makes sound
economic sense. First year accident savings returns
of up to 4000% have been realised, along with considerable
reductions in street furniture and damage only accidents.
• VERSATILE: ANY AREA - ANY SEASON
- ANY WEATHER
The KLARUWTEX 190
system enables skid resistance to be restored by day
or night, in any weather conditions. 4-wheel drive and
twin axle steering enables K190 machines to manoeuvre
in restricted areas, turn in their own length and work
close to obstructions.
• FAST: MINIMAL TRAFFIC DISRUPTION
The K 190 treats up to 800 sm per machine hour,
minimising traffic disruption and reducing traffic management
costs. A mechanical process and with no materials being
laid, there are no cooling, curing or weather delays.
The carriageway or runway can be trafficked immediately
after completion of the treatment. The flexibility and
efficiency of the operation ensures that works can be
programmed with confidence within tight operational
windows and in any season, to reduce delays and disruption.
Operatives are not required within the 'Works Area'
and the operation is classed as 'Moving Works' within
Chapter 8 and by the Health & Safety Executive. Positive
control of traffic allows 'sideways clearance' to be
at a minimum and will avoid the need for road closures
in most instances.
•
TOTAL CONTROL: MOST SURFACES CAN BE TREATED AND RE-TREATED
KLARUWTEX
190 retexturing is precisely controlled and is effective
on most wearing courses, including SMA, thin overlays
and surface dressings, PFC and concrete. Eighty four
independent computer controlled bush hammer heads treat
the surface to produce the required finish. Impact pressure
and forward speed is matched to each particular surface
to optimise the retexturing effect and minimise the
amount of material removed. Even where wheel track rutting
has occurred, the profile of the surface is accurately
followed to achieve a consistent finish over the whole
of the area under treatment.
• RECYCLING
High PSV and high cost
premium hardstone aggregates are in effect re-used,
thereby extending their useful life and preserving scarce
natural resources and postponing the inevitable application
of new materials. The arisings created during treatment
can be re-used..
• VIDEO
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