Rubber Removal
Rubber Removal | Re-texturing
The main reason for friction loos on touchdown zones of runways is vulcanized rubber deposits from turbojets landing. Due to recommendations of official organizations like ICAO, all runways with 15 daily landing and more, must have a plan to remove the rubber from the touchdown zone to keep it away from getting slipping.
OPAL’s durable, specialized equipment, skilled staff make us the pioneer contractor in the region. We are offering a satisfying service by:
the highest production rate per hour
High rate for removal
Lowest effect on pavement structure
No debris leaving on runway
Integrated equipment with less staff
Capability to immediate clearance of airfield with no debris
environmentally sound practices
We build our equipment by ourselves. It makes us the most matching service contractor in a specific market region.
Friction maintenance program schedule based on level of turbo-jet aeroplane operations for each runway end
| Daily turbo-jet aeroplane landings for runway end [H] | Annual aeroplane mass for runway end (million kg) [K] | Minimum friction survey frequency [M] | Minimum rubber removal frequency [N] |
|---|---|---|---|
| Less than 15 | Less than 447 | Once per year | Once every 2 years | 16 to 30 | 448 to 838 | Once every 6 months | Once every year | 31 to 90 | 839 to 2404 | Once every 3 months | Once every 6 months | 91 to 150 | 2405 to 3969 | Once every month | Once every 4 months | 151 to 210 | 3970 to 5535 | Once every 2 weeks | Once every 3 months | Greater than 210 | Greater than 5535 | Once every week | Once every 2 months |
Notes:
1. Airports that exceed 31daily turbo-jet aeroplane landings are more critical with respect to friction deterioration caused by rubber accumulation due to increased aeroplane activity.
2. In addition to daily turbo-jet aeroplane landings for runway ends, other factors should be considered by the airport operator when determining rubber removal, such as the type and age of pavement, annual climate conditions, time of year, number of wide-body aeroplanes that operate on the runways, and length of runways.
3. Reference columns [H] and [K]: After calculating [H] and [K], the airport operator should select the column which has the higher value and then select the appropriate values in columns [M] and [N].
Plan Runway Rubber Deposit Removal Due to Friction Report of Runways
Friction Measuring
Runway Calibration
OPAL serving following services by the innovative Continuous
Friction Measuring equipment. • Runway Calibration
• Sale and Deliver SKIDDOMETER
• Repair and Spare Parts Delivery
• Annual Maintenance and Calibration
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Plan Runway Rubber Deposit Removal Due to Friction Report of Runways
Visual Inspection
Visual inspection is one of the most used methods in low and medium movement airports. In some cases, this is a complementary method for Friction Measuring by CFME. The most important thing that airport authorities should take care of is keeping runway friction above the action level. It could practicable by preparing an annual plan suite to the landing of turbojets of each runway ends and, regular inspections for confirming the results.
Inspection method for visual estimation of rubber deposits accumulated on runway
ICAO Doc9137 | Airport Service Manual Part 2
| Level | Rubber Range | Description of rubber covering pavement texture in touchdown zone of runway as observed by evaluator | Estimated Mu in 150 m | Suggested action |
|---|---|---|---|---|
| Very light | Less than 5% | Intermittent individual tire tracks; 95% of surface texture exposed. | 0.65 or greater | None | Light | 21-40% | Individual tire tracks begin to overlap; 80-94% of surface texture exposed. | 0.55 to 0.64 | None | Light to medium | 21-40% | Central 6 m traffic area covered; 60-79% of surface texture exposed. | 0.50 to 0.54 | Monitor deterioration closely | Medium | 41-60% | Central 12 m traffic area covered; 40-59% of surface texture exposed. | 0.40 to 0.49 | Schedule rubber removal within 120 days | Medium to dense | 61-80% | Central 15 foot traffic area covered; 30-69% of rubber vulcanized and bonded to pavement surface; 20-39% of surface texture exposed. | 0.30 to 0.39 | Schedule rubber removal within 90 days | Dense | 81-95% | 70-95% of rubber vulcanized and bonded to pavement surface; will be difficult to remove; rubber has glossy or sheen look; 5-19% of surface texture exposed. | 0.20 to 0.29 | Schedule rubber removal within 60 days | Very dense | 96-100% | Rubber completely vulcanized and bonded to surface; will be very difficult to remove; rubber has striations and glossy or sheen look; 0-4% of surface texture exposed. | Less than 0.19 | Schedule rubber removal within 30 days or as soon as possible |
Notes:
With respect to rubber accumulation, there are other factors to be considered by the airport operator: the type and age of the pavement, annual climatic conditions, time of year, number of wide-body aeroplanes that operate on the runways, and length of runways. Accordingly, the recommended level of action may vary according to conditions encountered at the airport. The Mu ranges shown in the above table are from continuous friction-measuring devices that operate in the fixed braking slip mode. The Mu ranges are approximate and are to be used by the airport operator only when these devices are not available. When the devices are available, the airport operator should conduct friction surveys on the runways to establish the actual rubber classification level.
Rubber Removal
Rubber Removal | Re-texturing
The main reason for friction loos on touchdown zones of runways is vulcanized rubber deposits from turbojets landing. Due to recommendations of official organizations like ICAO, all runways with 15 daily landing and more, must have a plan to remove the rubber from the touchdown zone to keep it away from getting slipping.
OPAL’s durable, specialized equipment, skilled staff make us the pioneer contractor in the region. We are offering a satisfying service by:
the highest production rate per hour
High rate for removal
Lowest effect on pavement structure
No debris leaving on runway
Integrated equipment with less staff
Capability to immediate clearance of airfield with no debris
environmentally sound practices
We build our equipment by ourselves. It makes us the most matching service contractor in a specific market region.