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A more exact science

Flying buckets streamline process

How technology is improving quality and reducing accidents

Not every contractor needs to be intimately familiar with the inner workings of a concrete batch plant, but it’s interesting to note the processes at work there are evolving to improve concrete quality while increasing efficiency and reducing hazards in the plant.

Marcantonini Concrete Technology (MCT) designs ready-mix and pre-cast batch plant systems with an eye toward innovation based on customer feedback. One of its newest advancements include the Aerovan Mono and Bi rail flying buckets which help to automate and streamline the pre-cast batching process for maximum functionality, efficiency and reliability of concrete transport.

Aerovan carries wet, semi-wet, semi-dry and dry concrete quickly and accurately, maintaining all features of the batch, according to MCT. It’s possible to achieve a maximum speed up to 240m per minute applied to straight, curved and inclined tracks.

Ino Alegre, who represents MCT, explained the flying buckets are controlled by a computer that coordinates the delivery of concrete according to where and when in the plant it’s needed. What’s unique about MCT’s system is the use of bigger wheels and their placement above the track beam that the buckets travel along.

“A bigger wheel means faster travel times and tighter turns, not to mention less wear on the beam,” he explained.

The programmable flying buckets increase overall efficiency in pre-cast batching.

“There used to be four or five people involved in the process,” Alegre said. “But now, there’s the batch man, who calls up the recipe, and another person at the destination where the concrete is dumped.

It significantly streamlines the process. This can be dangerous work as well, and this automated process seriously reduces the potential for job site injuries.”

MCT’s flying buckets swiftly deliver concrete wherever it’s needed within pre-cast batch plants
Concrete for world’s largest lockMobile concrete mixing plant used for largest lock in the worldIn order to make Amsterdam, Netherlands, one of the most important European ports, accessible for the new generations of ships with growing dimensions, the largest lock in the world will be built in the city of Ijmuiden. The city is located at the south of the 27km long North Sea Canal connecting Amsterdam with the sea.The EU700 million (US$760 million) lock will be constructed with approximately 300,000 m³ of concrete. It is slated to open for shipping at the beginning of 2022.Dyckerhoff Basal is the Dutch subsidiary of the cement manufacturer Dyckerhoff GmbH and is one of the largest suppliers of ready-mix concrete and cement in the Netherlands. The most important factor in the company’s selection of concrete mixing plant was a rapid start of operation and the possibility of a swift change of location.Dyckerhoff Basal selected the Liebherr Mobilmix 3.5-C which can produce up to 150 m³ of concrete per hour, and up to 300 m³ as a double plant. The plant is operated intuitively via Liebherr‘s Litronic-MPS control system at a PC workstation.The plant can be relocated within four days. Thanks to the already integrated insulation, the Mobilmix 3.5-C is also optimally equipped for winter operation.The Mobilmix 3.5-C is equipped with a Liebherr DW 3.5 twin-shaft mixer, enabling optimum concrete homogeneity while being particularly suitable for short-term recipe changes.
Liebherr’s Mobilmix 3.5-C can swiftly change locations
This article appears in March 2020

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March 2020
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