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.
We used quick set concrete. It sets in 15 minutes, is hard in 1 hour, and is 90% cured after 24 hours. Technically it takes 28 days to continue curing, but it should be usable by the end of the day tomorrow. The bag of concrete was our only expense since we had screws and wire laying around, and it cost $16.