BURJ DUBAI set the break World record for highest vertical pumping of concrete

BURJ DUBAI set the break World record for highest vertical pumping of concrete

03.04.2007: BURJ DUBAI set the break World record for highest vertical pumping of concrete

Emaar Properties’ Assistant Director Greg Sang shares the challenges posed by construction of the future tallest building in the world with the BBG

Burj Dubai, on course to becoming the world’s tallest building, also looks set to break the world record for the highest vertical pumping of concrete

The team behind the construction of Burj Dubai, on course to be the world’s tallest building on completion, is set to break the world record for the highest pumping of concrete, members of the British Business Group (BBG) will hear tomorrow (Wednesday).

Greg Sang, Assistant Director - Projects with Burj Dubai developers Emaar Properties, will tell the group that he is confident the record for pumping concrete vertically, which currently stands at 448 metres, will fall within the next few months. The present record is held by the 508-metre-high Taipei 101 building in Taiwan.

Mr Sang is speaking at a meeting of the BBG’s Construction Special Interest Group being held at Nad Al Sheba. He will describe the challenges behind the design and construction of the tower, which is currently 119 levels and over 400-metres high and on course to replace Taipei 101 as the world’s tallest building.

"The Burj Dubai is a high profile project, and there is a lot of interest in it, and so I am very happy to give a presentation to the BBG about the features of the building’s design and how it was conceived," said Sang. "I’ll be sharing some of the challenges thrown up by the tower’s sheer height and how the construction and design team got around them."

To date, 267,426 cubic metres of reinforced concrete and 49,684 tonnes of reinforcing steel have been used in the construction of Burj Dubai, the final height of which remains a closely guarded secret.


Greg Sang of Emaar Properties will share some of the challenges behind the construction of Burj Dubai with members of the BBG’s Construction Special Interest Group


Sang will tell the BBG that the usual surveying techniques using lasers to monitor the verticality of the structure were not viable in the case of the Burj Dubai due to lasers’ limited range of around 400 - 500 metres. Instead the Burj Dubai construction team is, as far as Sang is aware, the first in the world to use GPS for this purpose.

He will also describe how the team is using airlocks to combat the ‘chimney effect’, which typically affects very tall buildings with high contrasts between interior and exterior temperatures. If left unremedied, the cool air inside the building during Dubai’s hot summer months would sink creating high pressure at the bottom and causing problems such as stuck doors and whistling sounds, however airlocks prevent this by controlling airflow.

The BBG members will also hear how the design pressures for the glass façade of the Burj Dubai were determined by rigorous wind-tunnel testing, which involved placing a model of the building fitted with pressure sensors onto a turntable in a windtunnel.

Greg Sang has worked on the Burj Dubai project for two-and-a-half years and previously was part of the team constructing the tallest building in Hong Kong, the 420-metre-high Two International Finance Centre.

"It’s always exciting to create landmark buildings, something which becomes an icon for a city," he said. "I’m lucky in the sense that my work involves creating something physical, and I get a great sense of satisfaction from being able to look back at a project and recall that I was involved in its creation."

Tomorrow’s event is one of a regular programme of meetings held by the BBG’s Construction Special Interest Group, which is targeted at BBG members and non-members with an interest in construction issues. The BBG also has a range of other Special Interest Groups covering fields including banking and finance, law, education and insurance.



The British Business Group, Dubai & Northern Emirates, more usually known as the BBG, was set up in 1987 to encourage the development of British business in the UAE. It undertakes a wide range of activities from communicating with decision makers and testing British goods to sharing best business practice and arranging networking events for its members.

The BBG is led by an elected committee of members and operates under the auspices of the Dubai Chamber of Commerce & Industry. It is recognised by the UAE authorities as the representative body of British companies and individuals operating in Dubai and the Northern Emirates.

Since its inception the BBG has undergone huge growth and now has more than 850 members and holds around 70 networking events, forums and seminars each year. It is widely recognised as one of the largest and most active business groups in the Gulf and is preparing to celebrate its 20th anniversary this year.

Its activities include a cost-effective Product Testing Service that allows British companies to identify how their product or service would compete in the regional markets. The BBG is also the official body for provision of British Standards in Dubai and the Northern Emirates.

The BBG’s events include regular monthly working luncheons, dinner and breakfast meetings and networking sessions, which provide a forum for members and guests to discuss their views and frequently feature guest speakers from the British and UAE business worlds. Its monthly Special Interest Groups provide a forum for members with a common interest and include Banking & Finance, Construction, Education and Real Estate.


- Lucy Wray, Total Communications Dubai - also photos -

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03.04.2007 / MaP

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