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Used to increase friction of wet surfaces by removing surface water.
For anti-skid grooving, we have an extensive selection of plant available including the latest American "Cushion Cut" machine as illustrated. (Figure 1)
This machine, in addition to the provision of grooves to the required centre, pitch and depth specification will automatically vacuum up the resultant slurry.
Only operatives with the requisite ability and experience are employed by Jointline Limited on these contracts.
Used On :
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Figure 1. (jl-ccg-01)
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Runway Grooving. |
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Tests by NASA in the USA have proved that a grooved runway should finish with a co-efficient of friction which, in the wet, equates to 85% of that when it is dry.
Grooving has become the proven, most cost effective way to increase the co-efficient of friction in the wet thus improving the take-off and landing distances of aircraft.
Figure 2 shows the grooving of Heathrow runway to a specification of 4mm wide x 4mm deep groove at 25mm centres.
Large groover working night shift at Edinburgh Airport. (Figure 3)
Jointline Limited has recently undertaken ant-skid grooving of Runways at :
UK :
OVERSEAS : European :
Africa :
Carribbean :
and also throughout the USA.
Roads : Grooving to reduce surface water ponding on concrete and asphalt surfaces to the Department of Transport specification.
Recent contracts carried out on :
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Figure 2. (jl-ccg-02)
Figure 3. (jl-asg-01)
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Jointline can offer a full design layout and application of Airfield Markings to Aprons, Taxiways and Runways to conform to CAA's CAP168.
Manchester Airport New Second Runway. (Figure 4)
Line markings of runways, taxiways and pavements are a very important maintenance task of airports and Jointline Limited undertakes this function as term contracts at principal UK airports including Heathrow, Luton, Birmingham, East Midlands, Glasgow and Edinburgh. All work is carried out to the requirements of CAA (CAP168)/ICOA and our extensive experience of this type of work results in minimal disruption to airport operations. We have similar contractual arrangements for line marking at Ministry of Defence establishments.
All forms of paint such as chlorinated rubber, one and two pack epoxys can be applied using our large variety of equipment to cover both, type of material and quantity of lines required.
We also have the equipment to apply hot applied thermoplastic by the spray or screed principal.
Birmingham Airport freshly remarked runway carried out at night to minimise disruption. (Figures 8 & 9).
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Figure 4. (jl-runm-05)
Figure 5.
Figure 6.
Figure 8. (jl-runm-01)
Figure 9. (jl-runm-02)
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A
specialist material developed by Jointline Limited to provide a marking
that complies with CAP168 and 683.
“Paint surfaces should have a friction level similar to that of
the surrounding surface”. This
is a superior quality conventional material combined with a unique
grading of aggregates.
This combination gives a high friction value and by varying size
and amount of aggregates, friction values of between .65 and .8 using a
grip tester can be achieved (as tested by Cranfield
Aerospace) and used on Manchester Airport new 2nd Runway. This
is a cost effective method of friction marking which offers major
savings based on full life costings due to the ease and low cost of
overcoating.
No cleaning is required, cutting out the use and cost of
environmentally non friendly cleaning liquids and any ultimate damage
they may cause to the asphalt surface or aircraft metal parts. With this recoating procedure the line can be kept white which cannot be achieved by cleaning existing markings. (Figure 10) |
Figure 10. (jl-fmgraph-01)
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