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.
Need for Curing: Curing is one of the most important steps in concrete. construction and, regrettably, one of the most neglected. Effective curing is. absolutely essential for surface durability. Fresh concrete must be kept warm and. moist until the mixing water combines chemically with the cement (hydration).