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Answers: which is tallest building in the world

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It is Taipei 101 in Taipei city,Taiwan.

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i think burje-e-dubai is a tallest building , one building situated in taiwan it is under constructed and malaysia's towers, both r in kulalumpur. and apna kutubminar (joking)

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Burj Dubai-
The Burj Dubai (Arabic: ??? ??? "Dubai Tower") is a supertall skyscraper currently under construction in Dubai, United Arab Emirates. It is currently the tallest free standing structure in the world according to its developers, surpassing the CN Tower in Toronto, Ontario, Canada which previously held the record for 31 years. When it is completed in late 2008, it is predicted to be the tallest man-made structure in the world , as well as the tallest building by any measure. Scheduled for occupancy in September 2009, the building is part of a 2 km2 (0.8 sq mi) development called 'Downtown Burj Dubai' and is located at the "First Interchange" (aka "Defence Roundabout") along Sheikh Zayed Road at Doha Street. The building is being built by a Joint Venture of the South Korean Company Samsung, the Belgian Company Besix and the UAE Company Arabtec. It was designed by Adrian Smith before he left Skidmore, Owings and Merrill LLP (SOM) of Chicago to start his own independent practice, Adrian Smith + Gordon Gill Architecture in October 2006.However, SOM continues to lead the architectural, structural engineering and mechanical engineering of the Burj Dubai. The total budget for the Burj Dubai project is about $4.1 billion US dollars and for the entire new 'Downtown Burj Dubai', $20 billion US Dollars.

Construction-
The Burj Dubai is made from reinforced concrete. As construction of the tower progresses, it becomes increasingly difficult to vertically pump the thousands of litres of concrete that are required. The previous record for pumping concrete on any project was set during the extension of the Riva del Garda Hydroelectric Power Plant in Italy in 1994, when concrete was pumped to a height of 532 m (1,745 ft). The Burj Dubai now holds this record as of August 19th as it has a height of 536.1 m (1,759 ft), to hold the record for concrete pumping on any project.[citation needed]

Special mixes of concrete are made to withstand the extreme pressures of the massive weight of the tower; each batch of concrete is tested and checked to see whether it can withstand certain pressures. The head of Concrete Quality Checking on the Burj Dubai project is Alam Feroze, who is in charge of concrete on the whole project.

As the consistency of the concrete on the project is essential, it was difficult to create a concrete which could withstand the thousands of tonnes bearing down on it, but also to withstand Gulf temperatures which can reach 50 degrees Celsius. To combat this problem, the concrete is not poured during the day. Instead, ice is added to the mixture and it is poured at night when it is cooler and the humidity is higher. A cooler concrete mixture dries evenly throughout and therefore is less likely to set too quickly and crack. Any significant cracks could put the whole project in jeopardy.

Hope u like it and give me +10 !!!!!!

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In Abu Habi but i dont know the name of Building.

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