Archives for Our Industry

What is Concrete Temperature Limit?

Concrete Temperature limits are established to ensure that high-quality concrete with specified requirements is produced.

Various standards and specifications provide limits on the temperature of concrete so as to achieve designated strength and durability.

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The world’s highest bridge

The Duge Beipanjiang Bridge (also called the Beipanjiang Bridge or the Duge Bridge) is a concrete cable-stayed bridge that carries four lanes across the Beipan River. Connecting Xuanwei in the Yunnan Province and Liupanshui in Guizhou, the bridge reduces travel times between the two cities from four hours to just over an hour.

It was a massive construction project, and the designers kept having to move the final location of the bridge higher and higher to avoid caves and cracking in the karst mountains at either side of the valley.

The eastern tower of the bridge is 883 feet tall, which is up there among the tallest bridges in the world. Even more impressive, however, is the huge expanse between the road deck and the river below. The deck is 1,854 feet—or over a third of a mile—above the average water level of the river. For perspective, the Golden Gate Bridge in San Francisco has a clearance of about 220 feet. Chicago’s Sears Tower would fit under the Beipanjiang Bridge with 400 feet to spare, while London’s 30 St Mary Axe (The Gherkin) would fit under the bridge three times over.

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M4 Tunnels officially open

Over the weekend Transport for NSW officially opened the new M4 Tunnels in an exciting milestone for WestConnex!

This game changing project will help reduce congestion, cut travel times and return local streets to locals by taking up to 10,000 trucks off Parramatta Road and bypassing 22 sets of traffic lights.

Check out this video to learn more!

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Australian engineers quietly changing the world

Australian engineers have created some of the most incredible, life-changing innovations of past years. But very little is known about them, with everyday Australians often unaware that these inventions are homegrown. Now you can follow their journeys! With thanks to Engineers Australia for this wonderful initiative.

Check out episode 1 below:

EPISODE 1: The Planet Earth Avenger

EPISODE 1: The Planet Earth Avenger, Darren, takes on plastic pollution and turns waste into treasure. Want to become an engineering superhero and change the world?Join us today: http://bit.ly/planet-earth-avenger

Posted by Engineers Australia on Sunday, 17 February 2019

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Zaha Hadid Architects and ETH Zurich develop knitted concrete system

A double-curved concrete shell made with a 3D-knitted formwork in a collaboration between Zaha Hadid Architects and ETH Zurich has gone on display in Mexico City.

KnitCret is a new 3D-knitted textile system for creating curving concrete structures, without the need for expensive and time-consuming moulds.

The colourful pavilion is called KnitCandela in homage to the work of Spanish-Mexican architect and engineer Félix Candela, who created dramatic curved concrete shells in his buildings such as the Los Manantiales Restaurant in 1958.

Over two miles of yarn was knitted into four strips of between 15 and 26 metres in just 36 hours using a digital fabrication technique, then flown over from Switzerland to Mexico in suitcases.

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World’s longest sea crossing bridge opens in China

The Hongkong-Zhuhai-Macoa bridge is now officially open. The bridge is 55-km long. It consists of a 22.9-km main bridge and a 6.7-km underground tunnel.  Surface area of the bridge is 700,000 square meters. It’s about the size of 98 standard football fields. Its main girders are made up of 420,000 tons of steel plates. The weight is equal to about 60 Eiffel Towers. It has the world’s longest immersed tube highway tunnel. The rubes reach a depth of up to 40 meters underwater. The bridge is curved as its piers are placed in the direction of water flow.

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