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.
How long should I let the new concrete cure before walking on it? A: Generally speaking, concrete and other Portland cement-based products should be moist-cured for at least 5 to 7 days.Check the product packaging for specific instructions. One alternative to moist-curing is using an Acrylic Concrete Sealer.: Generally speaking, concrete and other Portland cement-based products should be moist-cured for at least 5 to 7 days. Check the product packaging for specific instructions. One alternative to moist-curing is using an Acrylic Concrete Sealer.