Engineering Sound

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RUNWAY RUBBER DEPOSIT REMOVAL
Airfield Pavement Friction & Safety Management
Runway rubber deposit accumulation is a critical airfield pavement maintenance issue affecting runway friction characteristics, aircraft braking efficiency, and wet runway operational safety.
During aircraft touchdown, tires rapidly accelerate from zero rotational speed to landing speed, generating intense frictional heat and depositing rubber particles onto the runway surface, primarily within touchdown zones and aircraft wheel paths.
As rubber accumulation increases, pavement macrotexture and groove effectiveness gradually reduce, resulting in:
* Decreased skid resistance
× Reduced braking action
_Loss of directional controllability
Reduced surface drainage capability
X Increased hydroplaning potential
X Deterioration of wet runway performance
Critical Rubber Accumulation Areas�Runway touchdown zones�Main wheel path regions
High aircraft movement landing areas
First 900-1200 m of runway pavement
Runway Surface Monitoring & Inspection
Typical runway surface evaluation includes:
V Continuous Friction Measuring Equipment (CFME) testing
V Surface texture depth assessment
V Groove condition inspection
V Drainage performance evaluation
V Visual rubber contamination assessment
Friction testing is generally performed along aircraft wheel paths approximately 3 to 6m from the runway centerline.