Some of the Largest Concrete Pours

Conco’s regional office in Washington completed a 2,880 cubic yard mat pour using 275 tons of rebar for The Martin, a 24-story luxury apartment tower for general contractor Exxel Pacific.  The Martin is located in Seattle’s downtown area known as Belltown, adjacent to the Monorail, which made access and time constraints a concern.  

A total of three pumps were used – a 36 meter, 47 meter & 58 meter to complete the mat pour pumping 450 cubic yards per hour at peak times. Cadman, Inc. delivered the ready-mix with trucks arriving approximately every 80 seconds to fill the mat which measures 7′-6″ at the deepest point.

While we are proud of our accomplishment at The Martin, we are in awe of some of the world records set for concrete pours.  According to the International Union of Bricklayers and Allied Craftworkers (BAC), the largest mat pour in the U.S. was for the Venetian Hotel in Las Vegas.  It was a 22,000 cubic yard pour. 

BAC states the second largest pour in the U.S. was for the luxurious Trump Royale condominium, a 22-story, 386-unit building in Southern Florida that was done in 2007.  At the end of a very busy 24 hours, utilizing 190 trucks in constant rotation, and a 1500 man crew, 13,500 cubic yards of concrete were poured and 1,600 tons of rebar used. 

The world record for the largest concrete pour on a single project took a period of 17 years to complete.  The Three Gorges Dam in Hubei Province, China used an estimated 21 million cubic yards of concrete. 

There even stands a record for the largest continuous underwater concrete pour that was done in New Orleans in 2010.  It was for 10,251 cubic yards of concrete pumped over a period of 58 hours. 

As one of the leading commercial concrete contractors in the San Jose area, Conco has been involved with large-scale projects in the area including the Mineta Airport.  Our concrete services include commercial, educational, parking and other construction development as well as public works projects and highways.

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