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.
Concreteâs strength is in part a function of the temperature at which it cures. Normal compressive strength is based on curing concrete at its ideal curing temperature, 72 degrees F for a period of 28 days. Warmer temperatures reduce the cure time.