The taxi-way system includes the following: 1  A parallel taxi-way 30 metres wide designated P. 2  Link taxiways 30 metres wide marked Q , W , Y & Z. 3  Holding bays at every intersection to the runway.  Loop taxi-ways at both ends of the runways.
Although concrete gains strength more slowly at lower temperatures, the strength of concrete cured at will eventually reach that of concrete cured at 70Â°F. Even if the concrete temperature drops to the mid teens, the hydration process will continue a very slow rate.
Mark is right here - you need water to cure a slab properly. Curing is the industry term for what chemists would call hydration (as opposed to de-hydration with which humans are familiar) of the cement powder. Hydration allows for increasing strength (good) and, important but often overlooked, wear resistance of the slab (really good).