On March 28th,2010, at Lujiazui of Shanghai, a building that will rewrite the record of China’s tallest building complete the pouring of 60,000 cubic meters of concrete for its bottom slab and will take shape soon. With a designed height of 632 meters, the Shanghai Tower will take the place of the Shanghai World Financial center as the tallest building in China after its completion in four years time.
60 hours of non-stopping concrete delivery
It was March 28th,2010, on bank of the beautiful HuangPu River, 405 white concrete truck mixers, shuttled between a huge pit 121 meters in diameter and 30 meters in depth, and 5 concrete batching plants. The truck mixers were feeding concrete into 18 units of concrete pumps parked around the pit. That was the construction site of the Shanghai Tower. In the past 3 days, these 18 units of concrete pumps completed an amazing task. They poured a total of 60 thousand cubic meters of superstrength concrete to form the bottom slab of the building in 60 hours non-stopping. In 4 years time from today, a building 632 meters in height will be erected to be the tallest building in China and the second tallest in the world.
King Pumps of China
The 18 units of concrete pump used in this project are Sany’s products and they are known as “king pumps in China”. “In the past three days, the 18 units of Sany’s concrete pumps poured 60 thousand cubic meters of superstrength concrete in one go. This is unprecedented in China. If not the entire world,” remarked an engineer from the Shanghai Construction Group, contractor of the project.
The total amount of concrete used by the nearby Shanghai World Financial Center was 230 thousand cubic meters. That is to say, the concrete used for bottom slab of the Shanghai Center has already neared a quarter of the total concrete used for building the Shanghai World Financial Center. With added additives, the C50 concrete delivered by Sany’s concrete pumps this time equaled C100 concrete in strength.
According to industry insiders, pumping 60 thousand cubic meters of superstrength concrete continuously for 60 hours “is a formidable task for the pumping machines both in terms of quantity and duration.”
“In addition to placing concrete to be building’s bottom slab, Sany’s concrete pumps are going to deliver concrete to the height of 632 meters. They will create another miracle!” remarked an insider from the Shanghai Construction Group.
Environmentally Friendly Machines
Construction of the Shanghai tower is underway in the very center of Minor Lujiazui, a CBD of Pudong, surrounded by bustling cars and jungles of skyscrapers. With the rise in the height of the Shanghai Tower each day in the near future, the low noise technology of Sany’s concrete pumps would definitely be a huge merit. This technology echoes the concept of “green building” advocated by the designers of this building, which serves as one of the basis for cooperation.
Sany’s concrete pumps possess another patent technology of energy saving realized through the computer-controlled diesel engine, which automatically identifies the differences in pumping conditions and adjusts the rotating speed of the diesel engine, the torque and the volume of spray, and conducts power matching automatically. Compared to traditional ways of control, this technology saves energy by 20%. Sany’s pumping equipments will also be adopted for conveying concrete to the body of the building, after the completion of the bottom slab. By then, Sany’s solely owned technology of ultra high pipeline water-washing will be applied for the first time. That will greatly decrease concrete contamination of the construction environment caused by traditional ways of pipe washing of ultra high pumps.
