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 gets progressively harder over time its called curing. However it depends on several thing like temperature and moisture. You can typically walk on concrete the next day but it can be prone to scratching. I generally have my customers wait two days to walk on it and 7-10 days to drive.In summer time on hot days concrete can cure to fast and crack within hours.oncrete gets progressively harder over time its called curing. However it depends on several thing like temperature and moisture. You can typically walk on concrete the next day but it can be prone to scratching. I generally have my customers wait two days to walk on it and 7-10 days to drive.