Today we are all accustomed to seeing
the long booms of concrete pumping trucks at a construction jobsite. While some of the booms have a reach of over
60 meters, if was not all that long ago that these state-of-the-art boom pumps
did not exist.
In the early 20th century, the
method used to move liquid concrete from a cement mixer involved using
wheelbarrows. As buildings started
getting taller, the process to move the concrete entailed lifting it in large
buckets known as skips. This was a
laborious procedure as each bucket typically only held about 2 cubic yards of
concrete.
It wasn’t until 1927 that two German
engineers, Max Giese and Fritz Hull, decided to try and pump concrete through
pipes. They had success pumping concrete
to a height of 125 feet (38 meters) and a distance of 130 yards (120
meters). In 1932, Jacob Cornelius
Kweimn patented a concrete pump in Holland.
While there were a several different
designs of concrete pumps over the ensuing years, the biggest advancement
occurred in 1957. This was the invention
of a twin cylinder hydraulic concrete pump from Friedrich Wilhelm Schwing’s
company, Schwing GmgH. In fact the
principle of the company’s design was quickly adopted by almost everyone in the
industry and is still the standard design used throughout the world.
The invention of the concrete pump provided
concrete contractors with the ability to pump concrete at a much faster rate than
buckets could lift it and to bring up a constant supply of concrete to reach
the rising heights of modern construction projects. Furthermore, the placing hoses allow the
liquid concrete to be positioned exactly where it is needed and eliminated the
need to distribute or move it around.
At The Conco Companies, we are one of
the leading concrete contractors in the Western U.S. and offer a wide range of
quality services and products. Our
experience includes providing services for commercial, educational, parking and
other construction development as well as public works projects. We serve California, Washington State,
Oregon, Colorado and Nevada.
Sources: en.wikipedia.org/wiki/Concrete_pump
wired.com/2015/11/it-took-18-hours-to-pour-san-franciscos-biggest-ever-concrete-foundation/#slide-1
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