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.
Concrete curing is a process in which the cement and the water in concrete bond and harden through a chemical reaction called hydration.As they bond, the cement and water bind the aggregate and the sand to form a strong foundation structure.Proper curing is critical to the strength and durability of concrete.oncrete curing is a process in which the cement and the water in concrete bond and harden through a chemical reaction called hydration.