The duration and type of curing plays a big role in determining the required materials necessary to achieve the high level of quality. Curing is the process in which the concrete is protected from loss of moisture and kept within a reasonable temperature range.The result of this process is increased strength and decreased permeability.Curing is also a key player in mitigating cracks in the concrete, which severely impacts durability.Cracks allow open access for harmful materials to bypass the low permeability concrete near the surface.uring compounds should be applied to pavements as soon as possible after bleed water has left the surface of the concrete at a rate of 200 ft 2 /gal for standard mixtures and application, 150 ft 2 /gal for fast track paving, and 100 ft 2 /gal for slabs thinner than 5.0 inches.
List of future tallest buildings. Jeddah Tower under construction in January 2016. This list of future tallest buildings ranks the tallest buildings in the world which are built, planned or currently under construction. Burj Khalifa in Dubai, UAE at 828 m (2,717 ft) is currently the world's tallest building.
Willis tower is the oldest building in the list and the construction of the building completed in 1974. It stands 442 meters or 1,450 feet high and composes 108 floors. Willis Tower is also the longest building that held the longest tallest worldâs record in the list. It held the record for a quarter decade. This tower is also the tallest building in north America.