You do not get a brakeing action on this type of contaminated rwy.
Quote is from CAA FODCOM Winter OPS 30/2005.
1.3 Braking Action on Dry and Wet Runways and Runways that may be Slippery When Wet
1.3.1 At civil aerodromes licensed for public use with paved runways more than 1200 metres long, periodic surveys of the friction level should be carried out. Provided that these surveys indicate greater than the Minimum Friction Level, good braking action may be assumed when the runway condition is reported as dry, damp or wet (CAP 683 ‘‘The Assessment of Runway Surface
Friction’’). If during routine friction measurements the coefficient falls below the minimum friction level for a continuous portion of the runway for 100 metres or more, the runway will be declared as one that may be slippery when wet. These friction measurements are not correlated directly to any specific aircraft type but are intended as guidelines for aerodrome operators on areas of the runway that require maintenance.
1.3.2 The report of the surface friction coefficients measured during the runway friction survey can be requested from the aerodrome operator. These coefficients will indicate the area of deterioration on the runway which can be as little as 100 metres of degraded surface or, after a prolonged dry
spell, initial rainfall may result in a very slippery condition that affects the whole runway temporarily. However, any performance calculations or adjustments resulting from the dissemination of this information are the responsibility of the aircraft operator and the commander, and not the aerodrome operator.
1.4 Reporting Contaminated Runway Braking Action
1.4.1 Measurement of braking action on contaminated runways is limited to ice (gritted or ungritted) and dry or compacted snow. Braking action will not be measured in slush, uncompacted wet snow or water (more than 3 mm deep) due to the limitations of existing friction measuring equipment.
I say again,You don't have brakeing actions on this type of RWY.
